uhf digital transceiver nx-300 - repeater...

UHF DIGITAL TRANSCEIVER

NX-300© 2007-10 PRINTED IN JAPANB51-8811-00 (S) 243

SERVICE MANUAL

GENERAL ............................................................... 2

SYSTEM SET-UP ................................................... 2

REALIGNMENT ...................................................... 3

DISASSEMBLY FOR REPAIR ................................ 6

CIRCUIT DESCRIPTION ......................................... 9

COMPONENTS DESCRIPTION ........................... 15

PARTS LIST .......................................................... 17

EXPLODED VIEW................................................. 28

PACKING .............................................................. 29

ADJUSTMENT ..................................................... 30

TERMINAL FUNCTION ........................................ 52

PC BOARD

CONTROL UNIT (X53-4260-XX) .................... 64

TX-RX UNIT (X57-7370-10) ............................ 68

Does not come with antenna. Antenna is available as an option.

SCHEMATIC DIAGRAM

CONTROL UNIT (X53-4260-XX) .................... 72

TX-RX UNIT (X57-7370-10) ............................ 82

INTERCONNECTION DIAGRAM ......................... 86

BLOCK DIAGRAM ................................................ 88

LEVEL DIAGRAM ................................................. 92

OPTIONAL ACCESSORIES

KNB-47L (Li-ion BATTERY PACK) ................. 93

KNB-48L (Li-ion BATTERY PACK) ................. 93

SPECIFICATIONS ..............................BACK COVER

CONTENTS

MIC

12 ABC

5 JKL

0

8 TUV

4

7

GHI

PQRS

3 DEF

6 MNO

MIC

#

9 WXYZ

NX-300 K3 NX-300 K

Knob (Selector)(K29-9408-13)

Knob (Selector)(K29-9408-13)

Knob (Volume)(K29-9407-03)

Knob (Volume)(K29-9407-03)

Helical Antenna(KRA-23:option)

Badge(B43-1606-04)

Badge(B43-1606-04)

Knob (PTT)(K29-9405-03)

Knob (PTT)(K29-9405-03)

Plastic cabinet assy(18 key)(A02-4003-13)

Plastic cabinet assy(6 key)(A02-4002-13)

Packing (6 key)(G53-1765-11)

Packing (18 key)(G53-1766-11)

This product uses Lead Free solder.This product complies with the RoHS directive for the European market.

NX-300

2

Document CopyrightsCopyright 2007 by Kenwood Corporation. All rights reserved.No part of this manual may be reproduced, translated,

distributed, or transmitted in any form or by any means, elec-tronic, mechanical, photocopying, recording, or otherwise,for any purpose without the prior written permission ofKenwood.

DisclaimerWhile every precaution has been taken in the preparation

of this manual, Kenwood assumes no responsibility for errorsor omissions. Neither is any liability assumed for damagesresulting from the use of the information contained herein.Kenwood reserves the right to make changes to any productsherein at any time for improvement purposes.

Firmware CopyrightsThe title to and ownership of copyrights for firmware

embedded in Kenwood product memories are reserved forKenwood Corporation. Any modifying, reverse engineering,copy, reproducing or disclosing on an Internet website of thefirmware is strictly prohibited without prior written consent ofKenwood Corporation. Furthermore, any reselling, assigningor transferring of the firmware is also strictly prohibited with-out embedding the firmware in Kenwood product memories.

NXDN Transceivers:The AMBE+2(TM) voice coding technology is embedded in

the firmware under the license of Digital Voice Systems, Inc.

GENERAL / SYSTEM SET-UP

INTRODUCTION

SCOPE OF THIS MANUALThis manual is intended for use by experienced technicians

familiar with similar types of commercial grade communicationsequipment. It contains all required service information for theequipment and is current as of the publication date. Changeswhich may occur after publication are covered by either ServiceBulletins or Manual Revisions. These are issued as required.

ORDERING REPLACEMENT PARTSWhen ordering replacement parts or equipment information, the

full part identification number should be included. This applies to allparts : components, kits, or chassis. If the part number is not known,include the chassis or kit number of which it is a part, and a sufficientdescription of the required component for proper identification.

PERSONAL SAFETYThe following precautions are recommended for personal safety:

• DO NOT transmit until all RF connectors are verified se-cure and any open connectors are properly terminated.

• SHUT OFF and DO NOT operate this equipment near elec-trical blasting caps or in an explosive atmosphere.

• This equipment should be serviced by a qualified technician only.

SERVICEThis transceiver is designed for easy servicing. Refer to

the schematic diagrams, printed circuit board views, andalignment procedures contained within.

SYSTEM SET-UP

Merchandise received

License and frequency allocated by FCC

Choose the type of transceiver

Transceiver programming

Are you using the optional antenna?

Are you using the speaker microphone?

A personal computer (IBM PC or compatible), programming interface (KPG-36/36A), USB adapter(KCT-53U), and programming software (KPG-111D) are required for programming.(The frequency, and signaling data are programmed for the transceiver.)

Frequency range (MHz) RF power Type DTMF keypad

TX/RX 450~520 5W NX-300 K No

YesTX/RX 450~520 5W NX-300 K3

YESKRA-23 or KRA-27Optional antenna

NO

NO

(Option)

(Option)

YESKMC-25

Speaker microphone

Are you using the voice guide & storage unit?

NO (Option)

YESVGS-1

Delivery

NX-300

3

1. Modes

Mode Function

User mode For normal use.Unprogramming mode If you turn the transceiver power ON using

any one of the following conditions, thetransceiver forcibly enters Unprogramming mode.• FPU data is not written.• No channel are programmed.• When using kill.• The ESN is not written.• Broken hardware has been detected.

Panel test mode Used by the dealer to check the funda-mental characteristics.

Panel tuning mode Used by the dealer to tune the transceiver.PC mode Used for communication between the

transceiver and PC (IBM compatible).Data programming Used to read and write frequency data andmode other features to and from the transceiver.PC test mode Used to check the transceiver using the PC.

This feature is included in the FPU.See pages 39 to 51.

Firmware Used when changing the main programprogramming mode of the flash memory.Clone mode Used to transfer programming data from

one transceiver to another.Firmware version Used to confirm the internal firmwareinformation version.

2. How to Enter Each Mode

Mode Operation

User mode Power ONPanel test mode [ ] + Power ONPC mode Received commands from PCPanel tuning mode Press the [ ] key, in Panel test modeFirmware [ ] + Power ONprogramming modeClone mode [ ] + Power ONFirmware version [Side1] + Power ONinformation

3. Panel Test ModeSetting method refer to ADJUSTMENT.

4. Panel Tuning ModeSetting method refer to ADJUSTMENT.

5. PC Mode

5-1. PrefaceThe transceiver is programmed by using a personal com-

puter, programming interface (KPG-36/36A), USB adapter(KCT-53U) and programming software (KPG-111D).

The programming software can be used with an IBM PCor compatible. Figure 1 shows the setup of an IBM PC forprogramming.

User mode

Panel test mode

Firmware version information

Panel tuning mode

Data programming mode

PC test mode PC tuning mode

PC mode

Clone mode

Unprogramming mode

Firmwareprogramming mode

1

2ABC

4

7

GHI3DEF

MIC

IBM-PC

KPG-111D

KPG-36 or KPG-36A orKPG-36A + KCT-53UIllustration is KPG-36.

KPG-36

Transceiver

PC

D-SUB(25-pin)

Transceiver

PC

KPG-36A

D-SUB(9-pin)

Transceiver

PC

KPG-36A

KCT-53U

USB

Fig. 1

REALIGNMENT

NX-300

4

5-2. Connection procedure1. Connect the transceiver to the computer using the inter-

face cable and USB adapter (When the interface cable isKPG-36A, the KCT-53U can be used.).

Notes:• You must install the KCT-53U driver in the computer to

use the USB adapter (KCT-53U).• When using the USB adapter (KCT-53U) for the first time,

plug the KCT-53U into a USB port on the computer withthe computer power ON.

2. When the POWER switch on, user mode can be enteredimmediately. When PC sends command the transceiverenter PC mode, and “PROGRAM” is displayed on the LCD.When data transmitting from transceiver, the red LED is lights.When data receiving to transceiver, the green LED is lights.

Note:The data stored in the computer must match the "ModelName" when it is written into the flash memory.

5-3. KPG-36/KPG-36A description

(PC programming interface cable: Option)The KPG-36/36A is required to interface the transceiver to

the computer. It has a circuit in its D-sub connector (KPG-36: 25-pin, KPG-36A : 9-pin) case that converts the RS-232Clogic level to the TTL level.

The KPG-36/36A connects the universal connector of thetransceiver to the RS-232C serial port of the computer.

5-4. KCT-53U description (USB adapter : Option)The KCT-53U is a cable which connects the KPG-36A to a

USB port on a computer.When using the KCT-53U, install the supplied CD-ROM

(with driver software) in the computer. The KCT-53U driverruns under Windows 2000 or XP.

5-5. Programming software KPG-111D descriptionThe KPG-111D is the programming software for the trans-

ceiver supplied on a CD-ROM. This software runs under MS-Windows 2000 or XP on an IBM-PC or compatible machine.

The data can be input to or read from the transceiver andedited on the screen. The programmed or edited data can beprinted out. It is also possible to tune the transceiver.

6. Firmware Programming Mode

6-1. PrefaceFlash memory is mounted on the transceiver. This allows

the transceiver to be upgraded when new features are re-leased in the future. (For details on how to obtain the firm-ware, contact Customer Service.)

6-2. Connection procedureConnect the transceiver to the personal computer (IBM

PC or compatible) using the interface cable (KPG-36/36A) andUSB adapter (KCT-53U : when the interface cable is KPG-36A, the KCT-53U can be used.). (Connection is the same asin the PC Mode.)

6-3. Programming1. Start up the firmware programming software (Fpro.exe

(version 4.0 or later))2. Set the communications speed (normally, 115200 bps)

and communications port in the configuration item.3. Set the firmware to be updated by File name item.4. Press and hold the [ ] key while turning the transceiver

power ON. Then, the orange LED on the transceiver lightsand “PROGRAM 115200” is displayed.

5. Check the connection between the transceiver and thepersonal computer, and make sure that the transceiver isin the Program mode.

6. Press “write” button in the window. When the trans-ceiver starts to receive data, the [LOADING] display lights.

7. If writing ends successfully, the checksum is calculatedand a result is displayed.

8. If you want to continue programming other transceivers,repeat steps 4 to 7.

Note:This mode cannot be entered if the Firmware Program-ming mode is set to Disable in the Programming software.

6-4. Function1. If you press the [Side2] key while “PROGRAM 115200” is

displayed, the display changes to “PROGRAM 19200”(The LED blinks green) to indicate that the write speed islow speed (19200 bps). If you press the [Side2] key againwhile “PROGRAM 19200” is displayed, the displaychanges to “PROGRAM 38400” (The LED lights red andorange alternatively). If you press the [Side2] key againwhile “PROGRAM 38400” is displayed, the displaychanges to “PROGRAM 57600” (The LED blinks orange).If you press the [Side2] key again while “PROGRAM57600” is displayed, the display returns to “PROGRAM115200” (The LED lights orange).

2. If you press the [Side1] key while “PROGRAM 115200” isdisplayed, the checksum is calculated, and a result is dis-played. If you press the [Side1] key again while thechecksum is displayed, “PROGRAM 115200” isredisplayed.

Note:Normally, write in the high-speed mode.

7. Clone ModeProgramming data can be transferred from one transceiver

to another by connecting them via their external universal con-nectors. The operation is as follows (the transmit transceiver isthe source and the receive transceiver is a target).

The following data cannot be cloned.• Tuning data• Embedded message with password• Model name data• ESN (Electronic Serial Number) data

REALIGNMENT

NX-300

5

Key guide on the Read authorization password input screen.• CONFRM ([ ] key):The password confirmation• DELETE ([ ] key): Delete the least digit from the current

password number (Press and hold todelete all password numbers)

• SELECT ([ ] key): Determine the least digit of the pass-word number

1. Press and hold the [ ] key while turning the transceiverpower ON. If the Read authorization password is set tothe transceiver, the transceiver displays “CLONE LOCK”.If the password is not set, the transceiver displays“CLONE MODE”.

2. When you enter the correct password, and “CLONEMODE” is displayed, the transceiver can be used as thecloning source. The following describes how to enter thepassword.

3.• How to enter the password using the keypad (K3

model only);If the [ ] / [ ] key is pressed while "CLONE LOCK" isdisplayed, the Read authorization password input screenis displayed.If one of keys 0 to 9 is pressed while the Read authoriza-tion password input screen is displayed, the pressed num-ber is displayed on the LCD.Each press of the key shifts the display in order to the left.When you enter the password and press the [ ] or [*]key, “CLONE MODE” is displayed if the entered pass-word is correct. If the password is incorrect, “CLONELOCK” is redisplayed.

• How to enter the password using the [ ] and [ ]keys (K, K3 models);If the [ ] / [ ] key is pressed while "CLONE LOCK" isdisplayed, the Read authorization password input screenis displayed.If the [ ] key or [ ] key is pressed while the Readauthorization password input screen is displayed, thenumber (0 to 9) blinks on the LCD. When you press the[ ] key, the currently selected number is determined. Ifyou press the [ ] key after entering the password in thisprocedure, “CLONE MODE” is displayed if the enteredpassword is correct. If the password is incorrect, “CLONELOCK” is redisplayed.

4. Power ON the target transceiver.5. Connect the cloning cable (part No. E30-3325-05) to the

universal connectors on the source and target.6. Press the [ ] key on the source while the source displays

“CLONE MODE”. The data of the source is sent to thetarget. While the target is receiving the data, “PRO-GRAM” is displayed. When cloning of data is completed,the source displays “END”, and the target automaticallyoperates in the User mode. The target can then be oper-ated by the same program as the source.

7. The other target can be continuously cloned. When the[ ] key on the source is pressed while the source displays“END”, the source displays “CLONE MODE”. Carry outthe operation in step 4 to 6.

REALIGNMENT

Cloning cable(E30-3325-05)

1

2ABC

4

7

GHI3DEF

MIC

1

2ABC

4

7

GHI3DEF

MIC

Fig. 2

Notes:• Cannot be cloned if the password (overwrite password) is

programmed to the target.• “Model Name” must be same to clone the transceiver.

8. Firmware Version InformationPress and hold the [Side1] key while turning the transceiver

power ON and then keep pressing and holding the [Side1]key, the firmware version information appears on the LCD.

NX-300

6

Removing the TOP packing (G53-1762-02)1. Pull on the TOP packing with your fingers to turn it back as

shown in the figure z.2. Pull the TOP packing to the left to remove the packing that

is fit into the left groove of the chassis x.3. Pull the TOP packing to the right to remove the packing

that is fit into the right groove of the chassis c.4. Remove the TOP packing v.

2. Precautions for Disassembly Removing the TX-RX unit from the chassis

1. Remove the cord ASSY from the connector of the TX-RXunit (CN900) z.

2. Remove the PTT FPC from the connector of the TX-RXunit (CN901) x.

3. Remove the 14 screws c.4. Anchor the screw hole of the TX-RX unit using the tip of a

pair of tweezers as shown in the figure. Then, lift the TX-RX unit to remove it from the chassis v.

DISASSEMBLY FOR REPAIR

CN901PTT FPC

2

TX-RX unit

CN900

Cord ASSY

1

4

3 33 3

33

3

1 2

3

4

1. Precautions for Waterproof• Do not remove the black sheet from the reverse side of

the transceiver (refer to the illustration right). Removal ofthis sheet decreases the waterproof efficiency of thetransceiver and may cause malfunctions if water seepsinto the transceiver.

• The orange packing material on the reverse side of thetransceiver is important with respect to the waterproofefficiency of the transceiver. Do not place stickers or othermaterials on or around the packing material shown in thefigure, or on the reverse side of the battery pack. Doing sowill impair the waterproof efficiency of the transceiver andmay cause it to break down. Additionally, in order toprevent damage to the packing material, do not allow it tocome in contact with foreign materials.

NX-300

7


3. Precautions for Reassembly

Mounting the chassis onto the case1. Place the key top on the chassis. Then, fit the chassis

tightly into the groove of the key top z.

Note:

Confirm that the entire groove of the key top fits to thechassis tightly.

2

1

3

Auxiliary(Orange)key

18 key part

2. Mount the chassis onto the case x.

Note:

After mounting the chassis onto the case, if the 18 keypart on the key top or the Auxiliary (Orange) key part of theVOL/CH packing gets stuck inside the case as shown inthe figure, return it to the normal position using a softtipped item (e.g., finger) c.Prying it with a pointed metal tool such as forceps, maydamage the key top or packing.

NX-300

8


Inserting the Volume and Channel switch intothe chassis

Insert the volume and channel switch into the chassiswith the VOL/CH FPC formed as shown in the figure.

Forming the VOL/CH FPC, Cord ASSY andUniversal connector FPC

Form the VOL/CH FPC, Cord ASSY and Universalconnector FPC as shown in the figure.

Installing lithium cell (W09-0971-05)1. Insert a lithium cell into one side of the socket (CN401).2. Push the lithium cell with your fingers as shown in the

figure to insert the lithium cell into the socket.

CN401

Control unit

Affixing the keyboard ASSY (S79-0472-05)

Affix the keyboard ASSY to the Control unit as shown inthe figure.After affixing the keyboard ASSY to the Control unit,confirm that the three positioning holes of the keyboardASSY and the Control unit are not misaligned.

Positioning holes Control unit

KeyboardASSY

VOL/CH FPC

VOL/CH FPC

UniversalConnector FPC

Cord ASSY

Changing the channel selector from 16-channeloperation to free

1. Remove the channel selector knob.2. Remove the circular nut.3. Remove the mechanical stopper.4. Reassemble the circular nut and channel selector knob

that were removed in steps 1 and 2, in their originalpositions.

Channel selector knob(K29-9408-13)

Circular nut(N14-0844-04)

Mechanical stopper(D32-0446-14)

NX-300

9

3. Receiver System

3-1. RF CircuitAn incoming RF signal from the antenna terminal is

passed through the antenna switch (D606, 607, 709 ,711)and then the bandpass filter (L721, L722). The bandpass filteris adjusted by a variable capacitor. The input voltage to thevariable capacitor is regulated by the voltage output from theD/A converter (IC703). The signal is amplified by an RF ampli-fier (Q705), and passed through the bandpass filter (L713,714, 715). The resulting signal is applied to the first mixer(Q703), where it is mixed with the first local oscillator signaloutput from the frequency synthesizer to produce the first IF(58.05MHz).

1. OverviewThe NX-300 is a UHF portable transceiver designed to

operate in the frequency range of 450 to 520MHz. The unitconsists of receiver, transmitter, phase-locked loop (PLL)frequency synthesizer, base band parts, power supply, andcontrol circuits.

2. Frequency ConfigurationThe receiver is a double-conversion superheterodyne

using the first intermediate frequency (IF) of 58.05MHz andthe second IF of 450kHz. Incoming signals from the antennaare mixed with the local signal from the PLL circuit to pro-duce the first IF of 58.05MHz. This is then mixed with the57.6MHz second local oscillator output to produce the450kHz second IF. The transmit signal frequency is gener-ated by the PLL VCO, and modulated by the signal from theDSP. It is then amplified and fed to the antenna.

CIRCUIT DESCRIPTION

Fig. 1 Frequency configuration

x3

57.6MHz

ANTSW

RFAMP

MIXIF AMP

PLLVCO

Bas

e b

and

cir

cuit

ANTTX/RX:450~520MHz

MCF

CF450kHz

58.05MHz19.2MHz

450~520MHz

391.95~461.95MHz

PAAMP

TXAMP

VCTCXO

AFAMP

MICAMP

1st MIX SP

MIC

3-2. IF CircuitThe first IF signal is passed through a four-pole monolithic

crystal filter (XF700) to reject adjacent channel signals. Thefiltered first IF signal is amplified by the first IF amplifier(Q701) and then applied to the lF system IC (IC701). The IFsystem IC provides a second mixer, AGC amplifier, and RSSI(Received Signal Strength Indicator).

The second mixer mixes the first IF signal with the57.6MHz of second local oscillator output and produces thesecond IF signal of 450kHz.

The second IF signal is passed through the ceramic filter(CF700) to reject the adjacent channel signal. The filteredsecond IF signal is amplified by the AGC amplifier.

The signal from the AGC amplifier is input to the ASIC(IC108) through the ceramic filter (CF701) and operationalamplifier (IC700 and IC410).

IC413

INA

MT

IC713(2/2) IC409

SWSW

IC701MIX, AGC

EX

AM

T

IC704 IC707IC410

IC108ASIC

IC102DSP

IC408

IC700

IC412

IC703

AMT

VOL

CF701

BPF

IF AMPQ701

MCFXF700

BPF

Q700

2nd OSC

X500

19.2MHz

VCTCXO x3 CF700

BPF

INT. SP

EXT. SP

RF AMPQ705

LPF

ANT

ANTSW

1st MIXQ703L612~L614

BPF

L713~L715

1st PLL OSC (PLL)

BPF

L721,L722D606,D607D709,D711

Fig. 2 RF and IF circuit

NX-300

10

Fig. 5 Audio band and Base band circuit

3-3. Audio Amplifier CircuitAudio processing (high-pass filter, low-pass filter, de-em-

phasized and so on) at FM mode and decoding at NXDNmode are processed by DSP. The audio signal from IC108and IC102 goes through the amplifier (IC704). The signal thengoes through a mute switch (IC707), amplifier (IC713), elec-tronic volume control (IC703), and AF amplifier (IC408).

While busy, AMT becomes Low to turn IC707 on, and thesignal is fed to the AF switch. While INAMT is High, the AFswitch (IC409) selects the internal speaker, and the audiosignal is fed to the internal audio power amplifier (IC413), andoutput to the internal speaker. While EXAMT is High, the AFswitch (IC409) selects the external speaker, and the audiosignal is fed to the external audio power amplifier (IC412),and output to the external speaker. The power supply forIC413 and IC412 is turned on while INAMT or EXAMT is High.

The speaker is switched by the logic of the speakerswitching terminal SSW on the universal connector. Whenthe SP-MIC is not attached, SSW becomes High. IC108 de-tects the logic of SSW and activates either INAMT or EXAMT.

3-4. Squelch CircuitIt amplifies the demodulated noise signal from IC108 after

filtering through the BPF circuit. Then, the amplified signal isconverted to a DC signal by the detection circuit. The con-verted signal is fed back to IC108.

CIRCUIT DESCRIPTION

Fig. 3 Audio amplifier circuit

Q406

Q407

IC409

IC413

VDD

INT SP

SHUT DOWN

B

INAMT

EXAMT

AF signalfrom IC408

IC412

VDD

EXT SP

SHUT DOWN

4. Transmitter System

4-1. Audio Band CircuitThe signal from the internal microphone goes through the

mute switch (Q5). When the SP-MIC is not attached, themicrophone switching terminal (MSW) on the universal con-nector becomes High, and the mute switch (Q5) is turned on.When the SP-MIC is attached, MSW is connected to GNDinside the SP-MIC. For this reason, Q5 is turned off, the inter-nal microphone is muted, and only the input of the externalmicrophone is supplied to the microphone amplifier. The sig-nal from the microphone goes through the mute switch(Q707), and is amplified by IC716 (1/2) and limited by the AGCcircuit which is composed of D703, D704, Q705 and Q706.

4-2. Base Band CircuitThe audio signal output from the base band circuit is con-

verted to digital data with a sampling frequency of 48 kHz.This digital data is sent to the DSP (IC102), and voice signalsof 300Hz or lower and frequencies of 3kHz or higher are cutoff and an audio range of 300Hz to 3kHz is extracted. Theaudio signal is then pre-emphasized in FM mode and synthe-sized with the signals, such as QT and DQT, as required, andis then output from IC108. In Digital mode, the audio signal isconverted to the 4-Level FSK base band signal and outputfrom IC108. The DTMF and MSK base band signals are alsogenerated by the DSP and output by IC108.

LPF (IC705) works as a smoothing filter. The DAC (IC703)assigns the base band signal to the VCO and VCTCXO (X500).At this time, the level output according to the transmit carrieris fine-adjusted according to each modulation method.

DET

IC108

IC702(1/2)ASQAPC

ASQDET

LPF

IC711(2/2)

HPF

Q704

AMP

D705

RECT

IC711(1/2)

AMP

Fig. 4 Squelch circuit

SW

Q707 IC712

MM

AMP

IC710(1/2)

LPF

IC706

LPF

IC705(1/2)

AMP IC703

IC710(2/2)

IC108ASIC

IC102 DSP

LPF

IC705(2/2)

AMP

IC501

AMP

VCTCXO

X500

VCO

IC504

AMP

AGC

IC716(1/2)

D703,D704Q705,Q706

SW

Q5

Q4

SW

MSW

SCSW

INT. MIC

EXT. MIC

NX-300

11

5. PLL Frequency Synthesizer

5-1. VCTCXO (X500)VCTCXO (X500) generates a reference frequency of

19.2MHz for the PLL frequency synthesizer. This referencefrequency is applied to pin 9 of the PLL IC (IC502) and con-nected to the IF circuit as a 2nd local signal through theTripler. The VCTCXO oscillation frequency is determined bythe DC voltage of the VC terminal. The VC voltage is fixed to1.65V by R500 and R501, and supplied to the VC terminalthrough IC501. The modulation signal is also fed to the VCterminal through IC501

The frequency adjustment is achieved by switching theratio of the dividing frequency that is not adjusted by the DCvoltage impressed to the VC. The resolution of the adjustingfrequency is approximately 4Hz.

5-2. VCOThere is a RX VCO and a TX VCO.The TX VCO (Q509) generates a transmit carrier and the

RX VCO (Q508) generates a 1st local signal. For the VCO os-cillation frequency, the transmit carrier is 450 to 520 MHz andthe 1st local signal is 391.95 to 461.95MHz.

The VCO oscillation frequency is determined by one sys-tem of operation switching terminal "T/R" and two systems ofvoltage control terminals "C/V" and "V-assist".

The operation switching terminal, "T/R", is controlled bythe control line (/T_R) output from the ASIC (IC108). Whenthe /T_R logic is low, the VCO outputs the transmit carrierand when it is high, it outputs a 1st local receive signal.

The voltage control terminals, "CV" and "V-assist", are con-trolled by the PLL IC (IC502) and ASIC (IC108) and the outputfrequency changes continuously according to the appliedvoltage. For the modulation input terminal, "VCO_MOD", theoutput frequency changes according to the applied voltage.This is used to modulate the VCO output. "VCO_MOD" worksonly when "/T_R" is low.

4-3. VOXIC716 (2/2) amplifies the audio signal captured in the mi-

crophone. The signal is then converted into the DC voltage,rectified by D706. The DC voltage activates the ASIC (IC108),and the VOX starts.

4-4. Drive and Final AmplifierThe signal from the T/R switch (D601 is on) is amplified by

the drive amplifier (Q601,Q602 and Q603) to 25~27dBm. Theoutput of the drive amplifier is amplified by the RF poweramplifier (Q606) to 5.0W (1W when the power is low). TheRF power amplifier is MOS FET. The output of the RF poweramplifier is then passed through the harmonic filter (LPF) andantenna switch (D606, D607 are on) and applied to theantenna terminal.

4-5. APC CircuitThe APC circuit always monitors the current flowing

through the RF power amplifier (Q606) and keeps a constantcurrent. The voltage drop at R642, R645 and R647 is causedby the current flowing through the RF power amplifier andthis voltage is applied to the differential amplifier (IC600 1/2).IC600 (2/2) compares the output voltage of IC600 (1/2) withthe reference voltage from IC108, and the output of IC600(2/2) controls the VGG of Q602, Q603 and Q606 to make theboth voltages the same. The change of power high/low iscarried out by the change of the reference voltage. Q607,Q608 and Q610 are turned on and Q604 and Q605 are turnedoff in transmit and the APC circuit is active.

CIRCUIT DESCRIPTION

FinalAMP

VDD

R642

VGG

IC600(1/2)

FromT/R SW(D601)

REFVOL

(IC108)

+B

LPFANTSW

D606,D607Q606

DriveAMP

Q602

PreDrive

Q601

Pre-FinalAMP

Q603

ANT

R645

R647

IC600(2/2)

Fig. 6 Drive and final amplifier and APC circuit

NX-300

12

6. Control CircuitThe control circuit consists of the ASIC (IC108) and its pe-ripheral circuits. IC108 mainly performs the following;1) Switching between transmission and reception by PTT

signal input.2) Reading system, zone, frequency, and program data

from the memory circuit.3) Sending frequency program data to the PLL.4) Controlling squelch on/off by the DC voltage from the

squelch circuit.5) Controlling the audio mute circuit by decode data input.

6-1. ASICThe ASIC (IC108) is a 32-bit RISC processor, equipped

with peripheral function and ADC/DAC.This ASIC operates at 18.432MHz clock and 3.3V /1.5V

DC. It controls the flash memory, SRAM, DSP, the receivecircuit, the transmitter circuit, the control circuit, and the dis-play circuit and transfers data to or from an external device.

CIRCUIT DESCRIPTION

5-3. PLL IC (IC502)The PLL IC compares the differences in phases of the

VCO oscillation frequency and the VCTCXO referencefrequency, returns the difference to the VCO CV terminal andrealizes the "Phase Locked Loop" for the return control. Thisallows the VCO oscillation frequency to accurately match(lock) the desired frequency.

When the frequency is controlled by the PLL, the fre-quency convergence time increases as the frequency differ-ence increases when the set frequency is changed. Tosupplement this, the ASIC is used before control by the PLLIC to bring the VCO oscillation frequency close to the desiredfrequency. As a result, the VCO CV voltage does not changeand is always stable at approximately 2.5V.

The desired frequency is set for the PLL IC by the ASIC(IC108) through the 3-line "SDO1", "SCK1", "/PCS_RF" serialbus. Whether the PLL IC is locked or not is monitored by theASIC through the “PLD” signal line. If the VCO is not thedesired frequency (unlock), the "PLD" logic is low.

5-4. Local Switch (D600, D601)The connection destination of the signal output from the

buffer amplifier (Q600) is changed with the diode switch(D601) that is controlled by the transmission power supply,50T, and the diode switch (D600) that is controlled by thereceive power supply, 50R. If the 50T logic is high, it is con-nected to a send-side pre-drive (Q601). If the 50T logic is low,it is connected to a receive-side mixer (Q703).

LoopFilter

BUFFAMP

BUFFAMP

RippleFilter

VCO

150C

VCTCXO

PLLIC

IC502 Q512

Q508,Q509D506,D507,D510,D511

D514~D517,D519

BUFFAMP

Q600

LPF

Q505

SDO1SCK1

/PCS_RF

X50019.2MHz

T/RSW

D600,D601

50C

50C

to TX stage

50T

50R

to 1

st M

ixer

IC504(1/2)

Q504

Q503

IC503

CV

VCO_MOD

ASSIST

Fig. 7 PLL block diagram

NX-300

13

CIRCUIT DESCRIPTION

6-2. Memory CircuitThe memory circuit consists of the ASIC (IC108) and the

SRAM(IC103) and flash memory (IC101). The flash memoryhas capacity of 32M-bit that contains the transceiver controlprogram for the ASIC and stores the data. It also stores thedata for transceiver channels and operating parameter thatare written by the FPU. This program can be easily writtenfrom external devices. The SRAM has capacity of 1M-bit thatcontains work area and data area.

Flash memory

Note: The flash memory stores the data that is written by theFPU (KPG-111D), tuning data (Deviation, Squelch, etc.) ,andfirmware program (User mode, Test mode, Tuning mode,etc.). This data must be rewritten when replacing the flashmemory.

SRAM (Static memory)

Note: The SRAM has temporary data area and work area.When the power supply is off, it is backed up by an internalsecondary lithium battery. Therefore, the saved data is notlost.

Real-time clock

The clock function is based on real-time clock IC (IC106).When the power supply is off, it is backed up by an internalsecondary lithium battery

6-3. LCDThe LCD is controlled using the bus lines on the connector

(CN1) of the Control unit (X53-426). It corrects the LCD con-trast voltage using IC1.

6-4. Key Detection CircuitKeys are detected using the key scan circuit in IC108. The

/KEYI* signals that are normally pulled down go high whenany key is pressed.

6-5. Low Battery WarningThe battery voltage is divided using R444 and R445 and is

detected by the ASIC (IC108). When the battery voltage fallsbelow the voltage set by the Low battery warning adjust-ment, the red LED blinks to notify the operator that it is timeto replace the battery. If the battery voltage falls even more(approx. 5.8V), a beep sounds and transmission stops.

6-6. DSPThe DSP circuit consists of a DSP (IC102) and processes

the base band signal. The DSP operates on an external clockof 18.432MHz (the same as the IC108), the I/O section oper-ates at 3.3V and the core section operates at 1.5V. The DSPcarries out the following processes:

• 4 Level FSK processing• Analog FM pre-emphasis/de-emphasis• Vocoder processing between audio codec and modula-

tion/demodulation• CAI processing, such as error correction encoding• QT/DQT encoding/decoding• LTR encoding/decoding• DTMF encoding/decoding• MSK encoding/decoding• 2-tone encoding/decoding• Compressor/expander processing• Voice scrambler processing• Transmit/receive audio filtering processing• Microphone amplifier AGC processing• Audio mute processing• Modulation level processing

7. Power Supply CircuitThe battery voltage (+B) is provided from the battery

terminal on the TX/RX unit (X57). The battery voltage passesthrough the 2.5A fuse (F900), and goes to the RF final ampli-fier, AVR ICs (IC902, IC903), and Control unit (X53-426).

In the control unit, +B is connected to the DC/DC (IC407),AVR ICs (IC411, IC708, IC416), and voltage detector IC(IC414). The voltage detector watches the battery voltage.If the battery voltage is 5.6V or higher, the detector outputsHigh. While the output of IC414 is High, IC416 and Q409provide 3.1V (31BU) to the backup-section.

When the VOL SW is turned on, SB1 becomes high (bat-tery voltage). The DC/DC (IC407) operates if both SB1 andthe output of the detector are high. IC407 outputs 3.8V and itactivates IC404 (33M), IC405 (15M), and IC406 (33A). As aresult, the ASIC and DSP operate.

The SBC signal becomes High after the ASIC operates,IC708 (5A), Q403 on the Control unit (SB2) and Q901 on theTX-RX unit (SB3) are turned on. IC901 and IC903 operate byturning on these AVR ICs and FET switches.

The 5UC signal becomes High when an option is installedon the universal connector. Then IC411 (50U) operates.

When the /SAVE signal becomes High, IC902 (50C) oper-ates. The output of IC902 is connected to three FET switches(Q902, Q903, Q905). When the SBC signal becomes High,IC903 (33C) operates. The FET switches are controlled by theCPU. Q905 (50T) is turned on in transmit mode. Q902 (50R)and Q903 (50IF) are turned on in receive mode.

When the VOL SW is turned off the /PSW signalbecomes Low. After detecting the /PSW signal, the ASICchanges SBC signal to Low. Then the power supplies exceptIC416 (31BU) stop.

Low battery warning Battery condition

The red LED blinks during The battery voltage is low buttransmission. the transceiver is still usable.The red LED blinks and the The battery voltage is lowwarning tone beeps while and the transceiver is notthe PTT switch is pressed. usable to make calls.

NX-300

14

CIRCUIT DESCRIPTION

Q90550T SW

Q90250R SW

Q90350IF SW

IC902AVR

/SAVE

/5TC

5RC

IFC

SBC

CN900

50R

50IF

+B

50C

50T

RX circuit

RF Final AMPAPC

VCO

TX circuit

IF circuit

IC901DC/DC

150CAssist, Tune

IC403DC/DC

-10VLCD Bias

31BUSRAM, RTC

IC903AVR IC

33CPLL, VCTCXO

Q901SB3 SW

SB3TX/Busy LED

F900

2.5A

IC411AVR IC

5UC50U

Universal

IC416AVR IC Q409

31BU

IC708AVR IC

5AOption

Q403SB2 SW

SBCSB2 BackLight

Key Light

33M

SB1

ASIC, DSP I/O,Flach, LCD DRV

IC407DC/DC IC404

AVR

VOL SW

15MASIC, DSP coreIC405

AVR

33A

/PSW

/BINT

ASIC Analog,Audio

IC406AVR

IC414Detect

Q408AND

D408OR

D412OR

Q402Lvl Conv

IC108ASIC

Q401Lvl Conv

CN404

Control unit (X53)

SBC

TX-RX unit (X57)

Fig. 8 Power supply circuit

8. Signaling Circuit

8-1. Encode (QT/DQT/LTR/DTMF/2-tone/MSK)Each signaling data signal of QT, DQT, LTR, DTMF, 2-tone

and MSK is generated by the DSP circuit, superposed on amodulation signal and output from IC108. The modulationbalance of the QT/DQT/LTR signal is adjusted by the D/Aconverter(IC703) and the resulting signal is routed to themodulation input of the VCO and VCXO (X500). Each devia-tion of the TX QT, DQT, LTR, DTMF and MSK tone is adjustedby changing the output level of IC108 and the resulting signalis routed to the VCO and VCXO. The RX DTMF tone is routedto the receive audio signal system, and is output from thespeaker.

8-2. Decode (QT/DQT/LTR/DTMF/2-tone/MSK)The audio signal is removed from the FM detection signal

sent to the DSP circuit and the resulting signal is decoded.

9. Compander CircuitThe term “compander” means compressor and expander.

The compander reduces noise by utilizing a compressor andan expander. The transceiver contains a DSP(IC102) to per-form this operation. The transceiver compander can beturned on or off using the FPU.

NX-300

15

COMPONENTS DESCRIPTION

Control unit (X53-4260-XX)

Ref. No. Part Name Description

IC1 IC LCD contrast

IC101 IC FLASH ROM

IC102 IC DSP

IC103 IC SRAM

IC104 IC 2 input AND gate

IC105 IC Reset

IC106 IC RTC

IC107 IC Buffer

IC108 IC ASIC


IC401,402 IC Bus switch

IC403 IC Voltage doubling inverter

IC404 IC Voltage regulator (33M)

IC405 IC Voltage regulator (15M)

IC406 IC Voltage regulator (33A)

IC407 IC DC/DC converter

IC408 IC AF AMP

IC409 IC AF switch

IC410 IC IF AMP

IC411 IC Voltage regulator (50U)

IC412,413 IC Audio AMP

IC414 IC Reset


IC416 IC Voltage regulator

IC417,418 IC Dual bus buffer

IC701 IC I/O control

IC702 IC APC LPF

IC703 IC D/A converter

IC704 IC RX AF LPF

IC705 IC Modulation LPF

IC706 IC MIC AMP

IC707 IC RX AF switch

IC708 IC Voltage regulator (5A)

IC709 IC Sidetone mute

IC710 IC MOD/MIC summing AMP

IC711 IC SQL BPF/SQL DC AMP

IC712 IC MIC switch

IC713 IC 1.65V REF/RX summing AMP

IC714 IC OPT switch

IC715,716 IC VOX AMP

Q1,2 Transistor LCD backlight switch

Q3 FET LCD backlight switch

Q4 FET MIC shift control

Q5 FET MIC shift switch

Q101,102 Transistor 12key backlight switch

Q103 FET 12key backlight switch

Q401,402 FET Level converter


Q403 Transistor SB2 switch

Q404 FET SB2 switch control

Q405 FET AF AMP switch

Q406,407 Transistor Voltage regulator (AF AMP)

Q408,409 Transistor DC switch

Q410 FET DC switch

Q411 FET Level converter

Q412 FET DC switch

Q413~415 Transistor DC switch

Q701 Transistor OPT switch

Q702 FET Tone switch

Q703 FET W/N noise switch

Q704 Transistor SQL noise AMP

Q705,706 Transistor MIC AGC

Q707 FET MIC mute

D1,2 LED 12key backlight

D3,4 LED LCD backlight


D7,8 LED LCD backlight


D11 Diode LCD backlight switch

D12~16 Diode Reverse current prevention

D17~19 Zener diode Surge absorption

D20 Zener diode PTT RF OPT control

D21 Zener diode EMC MSW SSW control

D22 Diode RXD control

D23 Diode TXD control

D101 Diode 12key backlight switch

D102 Diode Reverse current prevention

D401~404 Diode 12key control

D405,406 Diode DC/DC converter

D407 Diode Reverse current prevention

D408 Diode DC/DC converter control

D409,410 Diode SP control

D411 Diode RTC BATT control

D412 Diode DC switch control

D413 Diode RTC BATT control

D414 Diode TX LED switch

D415 Diode RX LED switch

D416 Diode 33M control

D417 Diode 33A control

D701 Diode 5A switch

D702 Diode PLD control

D703,704 Diode Detector

D705 Diode Noise detector

D706 Diode Detector

D707 Diode VOX

NX-300

16

COMPONENTS DESCRIPTION

TX-RX unit (X57-7370-10)


IC404 IC OP AMP (RSSI/VAGC)

IC500 IC Temperature sensor

IC501 IC DC AMP for TCXO MOD

IC502 IC PLL IC

IC503 IC DC AMP for VCO tune

IC504 IC OP AMP (VCO MOD/APC)

IC600 IC Auto power control

IC700 IC Buffer

IC701 IC FM IC

IC702,703 IC DC AMP for BPF

IC900 IC 50T control

IC901 IC DC/DC converter

IC902 IC Voltage regulator (50C)

IC903 IC Voltage regulator (33C)

Q503 Transistor Ripple filter

Q504 FET Buffer AMP

Q505 Transistor Buffer AMP


Q508,509 FET VCO oscillation

Q510,511 FET T/R switch

Q512,600 Transistor Buffer AMP

Q601 Transistor RF AMP

Q602 FET RF AMP

Q603 FET RF drive AMP

Q604 Transistor APC switch

Q605 FET APC switch

Q606 FET RF final AMP


Q608 FET APC switch


Q700 Transistor 2nd Local buffer AMP

Q701 Transistor IF AMP

Q703 FET Mixer


Q705 FET RF AMP

Q706 FET RF AGC

Q900 Transistor TX/RX LED switch

Q901 FET SB3 switch

Q902 FET 50R switch

Q903 FET 50IF switch

Q904 FET DC/DC converter switch

Q905 Transistor 50T switch

D501 Diode Ripple filter

D505 Diode Bypass diode


D506,507, Variable Frequency controlD510,511 capacitance diode

D514~517 Variable Frequency controlcapacitance diode


D519 Variable TX modulationcapacitance diode

D600,601 Diode Local switch

D604 Zener diode APC switch

D605 Zener diode APC protect

D606,607 Diode Antenna switch


D702~704 Variable Vari-cap tunecapacitance diode

D705 Diode RF AGC

D706,708 Variable Vari-cap tunecapacitance diode

D709 Diode Antenna switch

D710 Variable Vari-cap tunecapacitance diode

D711 Diode Antenna switch

D900 LED TX/RX LED

D901 Diode Reverse protection

D902 Diode 50T control

∗ New Parts. indicates safety critical components.Parts without Parts No. are not supplied.Les articles non mentionnes dans le Parts No. ne sont pas fournis.Teile ohne Parts No. werden nicht geliefert.

L: Scandinavia K: USA P: CanadaY: PX (Far East, Hawaii) T: England E: EuropeY: AAFES (Europe) X: Australia M: Other Areas

Parts No. DescriptionAddressNewpartsDestination Destination

NX-300

Ref. No. Parts No. DescriptionAddressNewparts Ref. No.

NX-300PARTS LIST

17

NX-300 (Y50-6120-XX)CONTROL UNIT (X53-4260-XX)

59 1A ∗ K29-9406-03 BUTTON KNOB(SIDE KEY)60 1B ∗ K29-9407-03 KNOB(VOL)

61 1B ∗ K29-9408-13 KNOB(CH)

A 1B,1D ∗ N08-0564-04 DRESSED SCREW ACCESSORYB 3B N09-2426-14 HEXAGON HEAD SCREW(BATT -)C 3A N09-2440-15 SPECIAL SCREW(CASE)D 2A,2B ∗ N09-6549-04 STEPPED SCREW(FG-SP HOLDER)E 2B,3A ∗ N09-6554-05 PAN HEAD SCREW(ANT/OP BOARD)

F 2B ∗ N14-0844-04 CIRCULAR NUT(VOL,CH)G 1C N30-3008-60 PAN HEAD MACHINE SCREW(BELT CLIP)H 1A,2A,2B N83-2005-48 PAN HEAD TAPTITE SCREW(PCB)

64 1A ∗ S79-0472-05 KEYBOARD ASSY(12KEY) K365 2A T07-0755-15 SPEAKER66 2A T91-0575-05 MIC ELEMENT

67 2A W09-0971-05 LITHIUM CELL68 3A ∗ X41-3710-10 SWITCH UNIT(PTT FPC)69 2B ∗ X41-3720-10 SWITCH UNIT(6KEY FPC)70 2A ∗ X42-3340-10 CORD ASSY(50PIN FPC)72 2B ∗ X60-3860-10 TERMINAL ASSY(SMA)

D1 -10 B30-2215-05 LED K3D3 ,4 B30-2215-05 LED KD7 ,8 B30-2215-05 LED K

C1 CK73HB1A104K CHIP C 0.10UF KC2 -6 CK73GB1E105K CHIP C 1.0UF KC7 ,8 CK73HB1A104K CHIP C 0.10UF KC10 CK73HB1A104K CHIP C 0.10UF KC11 CK73HB0J105K CHIP C 1.0UF K

C12 -15 CK73HB1H471K CHIP C 470PF KC16 ,17 CC73HCH1H101J CHIP C 100PF JC23 -27 CK73HB1H102K CHIP C 1000PF KC28 -34 CC73HCH1H101J CHIP C 100PF JC35 CK73HB1H102K CHIP C 1000PF K

C36 CK73HB1E682K CHIP C 6800PF KC37 CK73HB1H102K CHIP C 1000PF KC38 CC73HCH1H101J CHIP C 100PF JC40 CC73HCH1H221J CHIP C 220PF JC41 CC73HCH1H101J CHIP C 100PF J

C101-104 CK73HB1A104K CHIP C 0.10UF KC105 CK73HB0J105K CHIP C 1.0UF KC106 CK73HB1E103K CHIP C 0.010UF KC107 CK73HB1A104K CHIP C 0.10UF K KC107,108 CK73HB1A104K CHIP C 0.10UF K K3

C109,110 CK73HB1H102K CHIP C 1000PF KC111-113 CK73HB1A104K CHIP C 0.10UF KC114 CK73HB0J105K CHIP C 1.0UF K K3C115 CK73HB1H471K CHIP C 470PF K K3C116,117 CK73HB1A104K CHIP C 0.10UF K

C118,119 CK73HB0J105K CHIP C 1.0UF KC120,121 CK73HB1A104K CHIP C 0.10UF KC122-124 CK73HB1E103K CHIP C 0.010UF KC130 CK73HB1E103K CHIP C 0.010UF K

1 1B ∗ A02-4002-13 PLASTIC CABINET(6KEY) K2 1A ∗ A02-4003-13 PLASTIC CABINET(18KEY) K33 2B ∗ A62-1156-02 PANEL(TOP)4 1B ∗ B09-0712-03 CAP ACCESSORY5 1A ∗ B11-1853-24 FILTER(LCD)

6 1A ∗ B11-1854-02 ILLUMINATION GUIDE(LCD)7 3B ∗ B11-1855-04 ILLUMINATION GUIDE(TX/BUSY)8 1A ∗ B38-0923-05 LCD ASSY9 1A ∗ B42-7296-04 STICKER10 1B ∗ B43-1606-04 BADGE

11 2D ∗ B62-2014-00 INSTRUCTION MANUAL12 2B ∗ D32-0446-14 STOPPER(16CH)14 3A ∗ E29-1221-04 RELAY HARDWARE(VCO-CHASSIS)15 2A ∗ E29-1220-04 RELAY HARDWARE(VCO-PCB)16 3B ∗ E58-0532-05 RECTANGULAR RECEPTACLE(SP/MIC)

17 3B ∗ E72-0425-03 TERMINAL BLOCK18 3A ∗ F07-1931-04 COVER(OP BOARD)19 2A ∗ G02-1836-13 EARTH SPRING(SP)20 1A ∗ G10-1373-04 FIBROUS SHEET(SP)21 2B ∗ G10-1384-04 FIBROUS SHEET(TOP PANEL)

23 2A G11-4272-14 RUBBER CUSHION(SP)24 3A G11-4331-04 SHEET(AIR)25 3A ∗ G11-4428-04 SHEET(PTT)26 3A ∗ G11-4429-04 RUBBER SHEET(FET)27 3A ∗ G11-4440-04 SHEET(AIR)

29 2A ∗ G11-4458-14 SHEET(SP)30 2A ∗ G11-4459-04 SHEET(TX-RX PCB)31 2A G13-2129-14 CUSHION(TX-RX PCB)33 2A ∗ G13-2258-04 CUSHION(50PIN FPC)34 3B ∗ G53-1762-02 PACKING(TOP)

35 3B ∗ G53-1763-03 PACKING(TERMINAL BLOCK)36 3A ∗ G53-1764-03 PACKING(OP BOARD)37 1B ∗ G53-1765-11 PACKING(6KEY) K38 1A ∗ G53-1766-11 PACKING(18KEY) K339 2B ∗ G53-1768-04 PACKING(VOL,CH O-RING)

40 1B ∗ G53-1769-04 PACKING(CAP)41 2B G53-1792-04 PACKING(SMA O-RING)42 2A ∗ J19-5505-11 HOLDER(FG-SP)43 2B ∗ J19-5506-03 HOLDER(VOL,CH)44 2A ∗ J19-5507-02 HOLDER(OP BOARD)

45 2B ∗ J21-8579-04 MOUNTING HARDWARE(FG-SP HOLDER)46 1C J29-0730-05 BELT CLIP ACCESSORY47 2B ∗ J30-1296-04 SPACER(VOL)48 2B ∗ J87-0006-05 FPC(LEAD FREE/VOL,CH)49 3B ∗ J87-0007-05 FPC(LEAD FREE/UNIVERSAL)

50 2B J99-0390-04 ADHESIVE SHEET(6KEY FPC)52 3A ∗ J99-0711-04 ADHESIVE SHEET(PTT FPC)53 2B ∗ J99-0712-14 ADHESIVE SHEET(6KEY FPC)54 1A ∗ J99-0714-04 ADHESIVE SHEET(LCD)55 3B ∗ J99-0715-08 ADHESIVE SHEET(UNIVERSAL)

56 3B ∗ J99-0725-04 ADHESIVE SHEET(TERMINAL BLOCK)57 3A ∗ K25-2001-03 PUSH KNOB(PTT)58 1A ∗ K29-9405-03 KNOB(PTT)

CONTROL UNIT (X53-4260-XX) -10 :K -11 :K3

NX-300PARTS LIST

18

Ref. No. Parts No. DescriptionAddressNewpartsRef. No. Parts No. DescriptionAddress

Newparts Destination Destination

CONTROL UNIT (X53-4260-XX)

C131 CK73HB1A104K CHIP C 0.10UF K

C133 CS77CP0J100M CHIP TNTL 10UF 6.3WVC134 CK73HB1E103K CHIP C 0.010UF KC135 CK73HB1H102K CHIP C 1000PF KC136 CK73HB1E103K CHIP C 0.010UF KC137 CK73GB1E105K CHIP C 1.0UF K

C138-140 CK73HB1A104K CHIP C 0.10UF KC141 CC73HCH1H101J CHIP C 100PF JC142 CS77CP0J100M CHIP TNTL 10UF 6.3WVC143 CK73HB1E103K CHIP C 0.010UF KC144 CK73GB1E105K CHIP C 1.0UF K

C145-148 CK73HB1A104K CHIP C 0.10UF KC149 CK73HB1E103K CHIP C 0.010UF KC150 CK73GB1E105K CHIP C 1.0UF KC151-155 CK73HB1A104K CHIP C 0.10UF KC156,157 CK73HB1H102K CHIP C 1000PF K

C158 CK73HB1E103K CHIP C 0.010UF KC159 CK73HB1A104K CHIP C 0.10UF KC160,161 CK73HB1E682K CHIP C 6800PF KC401,402 CK73HB1A104K CHIP C 0.10UF KC403-405 CS77AP1C2R2M CHIP TNTL 2.2UF 16WV

C406 CK73HB0J105K CHIP C 1.0UF KC407,408 CK73HB1H102K CHIP C 1000PF KC409-412 CK73HB0J105K CHIP C 1.0UF KC413 ∗ CK73FB1A106K CHIP C 10UF KC414 CK73HB0J105K CHIP C 1.0UF K

C415 CS77AP1A100M CHIP TNTL 10UF 10WVC416 ∗ CK73FB1A106K CHIP C 10UF KC417 CC73HCH1H221J CHIP C 220PF JC418 CK73HB1E103K CHIP C 0.010UF KC419 ∗ CK73FB1E475K CHIP C 4.7UF K

C420 CK73HB1E103K CHIP C 0.010UF KC421 CK73HB1E682K CHIP C 6800PF KC422 CC73HCH1H100C CHIP C 10PF CC424,425 CK73HB1A104K CHIP C 0.10UF KC427 CK73HB1E103K CHIP C 0.010UF K

C428 CC73HCH1H030C CHIP C 3.0PF CC429,430 CK73HB1A104K CHIP C 0.10UF KC431 ∗ CK73FB1A106K CHIP C 10UF KC432 CK73HB1E103K CHIP C 0.010UF KC433 ∗ CK73FB1A106K CHIP C 10UF K

C434 CK73HB1E103K CHIP C 0.010UF KC435-438 CK73HB1A224K CHIP C 0.22UF KC439,440 CK73HB1A104K CHIP C 0.10UF KC441 CK73GB1E105K CHIP C 1.0UF KC442 CK73HB1H471K CHIP C 470PF K

C443,444 CK73HB1E103K CHIP C 0.010UF KC445 CK73HB1H102K CHIP C 1000PF KC446 CK73GB1E105K CHIP C 1.0UF KC447 CK73HB1H102K CHIP C 1000PF KC448-450 CK73HB0J105K CHIP C 1.0UF K

C451-453 CK73HB1E103K CHIP C 0.010UF KC454 CK73GB1E105K CHIP C 1.0UF KC455-457 CK73HB1H471K CHIP C 470PF KC459 CK73HB1H471K CHIP C 470PF KC460 CK73HB1E682K CHIP C 6800PF K

C461-463 CK73HB1H471K CHIP C 470PF KC464 CK73HB1E103K CHIP C 0.010UF KC465 CK73HB1H102K CHIP C 1000PF K

C466 CK73HB1E682K CHIP C 6800PF KC467,468 CK73HB1E103K CHIP C 0.010UF K

C469,470 CK73HB1H102K CHIP C 1000PF KC701 CK73HB1A104K CHIP C 0.10UF KC703 CK73GB0J475K CHIP C 4.7UF KC704,705 CK73HB1A104K CHIP C 0.10UF KC706 CC73HCH1H680J CHIP C 68PF J

C707 CC73HCH1H270J CHIP C 27PF JC708 CK73HB1A104K CHIP C 0.10UF KC709 CK73HB0J105K CHIP C 1.0UF KC710 CK73HB1E103K CHIP C 0.010UF KC711 CK73HB1A104K CHIP C 0.10UF K

C712 CK73HB1E103K CHIP C 0.010UF KC713 CK73HB1H332K CHIP C 3300PF KC714 CK73HB1H122K CHIP C 1200PF KC715 CK73HB1A104K CHIP C 0.10UF KC716 CK73HB1H681K CHIP C 680PF K

C717 CK73HB1E103K CHIP C 0.010UF KC718 CK73HB1H152K CHIP C 1500PF KC719 CK73HB1A104K CHIP C 0.10UF KC720 CK73HB1E103K CHIP C 0.010UF KC721 CK73HB1A104K CHIP C 0.10UF K

C722 CK73HB1E103K CHIP C 0.010UF KC723 CK73HB1A104K CHIP C 0.10UF KC724 CK73HB1E103K CHIP C 0.010UF KC725 CC73HCH1E181J CHIP C 180PF JC726,727 CK73HB1A104K CHIP C 0.10UF K

C728 CK73HB1H331K CHIP C 330PF KC730 CK73HB1H331K CHIP C 330PF KC731,732 CK73HB1E103K CHIP C 0.010UF KC734 CK73HB1H102K CHIP C 1000PF KC735 CK73HB1H122K CHIP C 1200PF K

C736,737 CK73HB1A104K CHIP C 0.10UF KC738 CK73HB1H102K CHIP C 1000PF KC739 CK73HB1E682K CHIP C 6800PF KC740 CK73HB1H102K CHIP C 1000PF KC742 CK73GB1E105K CHIP C 1.0UF K

C743 CK73HB0J105K CHIP C 1.0UF KC744-746 CK73HB1E103K CHIP C 0.010UF KC747,748 CK73HB1A104K CHIP C 0.10UF KC749,750 CC73HCH1H470J CHIP C 47PF JC751 CK73GB1E105K CHIP C 1.0UF K

C752,753 CC73HCH1H101J CHIP C 100PF JC755 CC73HCH1H470J CHIP C 47PF JC756 CK73HB1A104K CHIP C 0.10UF KC757,758 CK73GB0J475K CHIP C 4.7UF KC759,760 CK73HB1E103K CHIP C 0.010UF K

C761 CC73HCH1H100D CHIP C 10PF DC762 CK73HB1A104K CHIP C 0.10UF KC763 CK73HB1E103K CHIP C 0.010UF KC764 CK73HB1H102K CHIP C 1000PF KC765-767 CK73HB1A104K CHIP C 0.10UF K

C768 CK73HB1H102K CHIP C 1000PF KC771 CK73HB1A224K CHIP C 0.22UF KC772 CK73HB1E103K CHIP C 0.010UF KC775 CC73HCH1H470J CHIP C 47PF JC777 CK73HB1H102K CHIP C 1000PF K

C778 CK73HB0J105K CHIP C 1.0UF KC779 CK73HB1E103K CHIP C 0.010UF K

NX-300PARTS LIST




19

C780 CK73HB1A224K CHIP C 0.22UF KC781,782 CK73HB0J105K CHIP C 1.0UF KC785 CK73HB1A224K CHIP C 0.22UF K

C786 CK73HB1E103K CHIP C 0.010UF KC787 CK73HB0J105K CHIP C 1.0UF KC788 CC73HCH1H150J CHIP C 15PF JC789 CC73HCH1H680J CHIP C 68PF JC790 CK73HB1A104K CHIP C 0.10UF K

C791 CK73HB1A393K CHIP C 0.039UF KC792 CK73HB0J105K CHIP C 1.0UF KC793,794 CK73HB1A104K CHIP C 0.10UF KC795 CK73HB1E103K CHIP C 0.010UF KC796 CK73HB1A104K CHIP C 0.10UF K

C797 CK73HB0J105K CHIP C 1.0UF KC798 CS77AP1A100M CHIP TNTL 10UF 10WVC799 CK73HB1A104K CHIP C 0.10UF KC800 CK73HB1H152K CHIP C 1500PF KC801 CK73HB1C223K CHIP C 0.022UF K

C802 CK73HB1E103K CHIP C 0.010UF KC803 CK73HB1H102K CHIP C 1000PF KC804 CC73HCH1H470J CHIP C 47PF J

CN1 ∗ E40-6755-05 FLAT CABLE CONNECTORCN22 ∗ E23-1325-05 TERMINALCN23 ∗ E40-6758-05 PIN ASSYCN24 ∗ E23-1325-05 TERMINALCN403 ∗ E40-6813-05 PIN ASSY

CN404 ∗ E40-6421-15 PIN ASSYCN405 ∗ E40-6754-05 FLAT CABLE CONNECTORCN701 E40-6586-05 SOCKET FOR PIN ASSYCN710 ∗ E40-6757-05 PIN ASSY

F701 F53-0360-05 FUSE(0.25A)

CN401 J19-5386-05 HOLDER(LITHIUM CELL)

L1 ,2 L92-0408-05 CHIP FERRITEL3 L92-0140-05 CHIP FERRITEL4 -7 L92-0408-05 CHIP FERRITEL8 L92-0140-05 CHIP FERRITEL101,102 L92-0408-05 CHIP FERRITE

L401 ∗ L33-1496-05 SMALL FIXED INDUCTORL402 L92-0467-05 CHIP FERRITEL403 ∗ L92-0466-05 CHIP FERRITEL409,410 L92-0467-05 CHIP FERRITEL701 L92-0140-05 CHIP FERRITE

L702 L92-0162-05 BEADS COREL704-709 L92-0162-05 BEADS COREL710-712 L92-0444-05 CHIP FERRITEL713 L92-0163-05 BEADS COREL714-717 L92-0444-05 CHIP FERRITE

X101 L77-1802-05 CRYSTAL RESONATOR(32768HZ)X102 ∗ L77-3015-05 TCXO(18.432MHZ)

R1 RK73HB1J105J CHIP R 1.0M J 1/16WR2 RK73HB1J104J CHIP R 100K J 1/16WR3 RK73HB1J123J CHIP R 12K J 1/16WR4 -10 RK73HB1J103J CHIP R 10K J 1/16WR11 RK73HB1J104J CHIP R 100K J 1/16W

R12 RK73HB1J103J CHIP R 10K J 1/16WR14 RK73HB1J472J CHIP R 4.7K J 1/16WR15 RK73HB1J000J CHIP R 0.0 J 1/16W

R16 RK73HB1J331J CHIP R 330 J 1/16WR17 RK73HB1J000J CHIP R 0.0 J 1/16W

R18 RK73HB1J822J CHIP R 8.2K J 1/16WR19 RK73HB1J471J CHIP R 470 J 1/16WR20 RK73HB1J102J CHIP R 1.0K J 1/16WR21 RK73HB1J122J CHIP R 1.2K J 1/16WR22 -24 RK73HB1J102J CHIP R 1.0K J 1/16W

R25 RK73HB1J122J CHIP R 1.2K J 1/16WR26 RK73HB1J102J CHIP R 1.0K J 1/16WR27 RK73HB1J104J CHIP R 100K J 1/16WR28 ,29 RK73HB1J102J CHIP R 1.0K J 1/16WR30 RK73HB1J101J CHIP R 100 J 1/16W

R31 RK73HB1J102J CHIP R 1.0K J 1/16WR32 -35 RK73HB1J101J CHIP R 100 J 1/16WR40 RK73HB1J000J CHIP R 0.0 J 1/16WR101,102 RK73HB1J474J CHIP R 470K J 1/16WR103 RK73HB1J102J CHIP R 1.0K J 1/16W

R105 RK73HB1J104J CHIP R 100K J 1/16WR106 RK73HB1J472J CHIP R 4.7K J 1/16W K3R107 RK73HB1J104J CHIP R 100K J 1/16WR108 RK73HB1J474J CHIP R 470K J 1/16W K3R110,111 RK73HB1J104J CHIP R 100K J 1/16W

R112 RK73HB1J000J CHIP R 0.0 J 1/16W K3R113 RK73HB1J104J CHIP R 100K J 1/16WR114 RK73HB1J331J CHIP R 330 J 1/16W K3R115 RK73HB1J104J CHIP R 100K J 1/16WR116 RK73HB1J473J CHIP R 47K J 1/16W

R117 RK73HB1J000J CHIP R 0.0 J 1/16W K3R118 RK73HB1J473J CHIP R 47K J 1/16WR119 RK73HB1J104J CHIP R 100K J 1/16WR120 RK73HB1J474J CHIP R 470K J 1/16WR121-123 RK73HB1J104J CHIP R 100K J 1/16W

R126 RK73HB1J101J CHIP R 100 J 1/16WR127,128 RK73HB1J000J CHIP R 0.0 J 1/16WR129-131 RK73HB1J101J CHIP R 100 J 1/16WR132,133 RK73HB1J104J CHIP R 100K J 1/16WR135-137 RK73HB1J104J CHIP R 100K J 1/16W

R138 RK73HB1J473J CHIP R 47K J 1/16WR139 RK73HB1J104J CHIP R 100K J 1/16WR140 RK73HB1J000J CHIP R 0.0 J 1/16WR141-143 RK73HB1J104J CHIP R 100K J 1/16WR144 RK73HB1J471J CHIP R 470 J 1/16W

R145-147 RK73HB1J104J CHIP R 100K J 1/16WR148 RK73HB1J151J CHIP R 150 J 1/16WR149 RK73HB1J000J CHIP R 0.0 J 1/16WR150 RK73HB1J102J CHIP R 1.0K J 1/16WR153,154 RK73HB1J104J CHIP R 100K J 1/16W

R155 RK73HB1J473J CHIP R 47K J 1/16WR156,157 RK73HB1J472J CHIP R 4.7K J 1/16WR158,159 RK73HB1J220J CHIP R 22 J 1/16WR160,161 RK73HB1J000J CHIP R 0.0 J 1/16WR162 RK73HB1J474J CHIP R 470K J 1/16W

R163 RK73HH1J104D CHIP R 100K D 1/16WR165 RK73HB1J102J CHIP R 1.0K J 1/16WR166 RK73HB1J104J CHIP R 100K J 1/16WR167 RK73HB1J102J CHIP R 1.0K J 1/16WR168 RK73HB1J000J CHIP R 0.0 J 1/16W

R170 RK73HH1J103D CHIP R 10K D 1/16WR171-173 RK73HB1J000J CHIP R 0.0 J 1/16W

NX-300PARTS LIST

20




R174-178 RK73HB1J104J CHIP R 100K J 1/16WR180,181 RK73HB1J104J CHIP R 100K J 1/16WR182 RK73HB1J474J CHIP R 470K J 1/16W

R183 RK73HB1J104J CHIP R 100K J 1/16WR184 RK73HB1J473J CHIP R 47K J 1/16WR185 RK73HB1J105J CHIP R 1.0M J 1/16WR186 RK73HB1J473J CHIP R 47K J 1/16WR187 RK73HB1J102J CHIP R 1.0K J 1/16W

R188 RK73HB1J473J CHIP R 47K J 1/16WR189 RK73HB1J104J CHIP R 100K J 1/16WR190 RK73HB1J102J CHIP R 1.0K J 1/16WR191 RK73HB1J474J CHIP R 470K J 1/16WR192 RK73HB1J102J CHIP R 1.0K J 1/16W

R193,194 RK73HB1J104J CHIP R 100K J 1/16WR401 RK73HB1J152J CHIP R 1.5K J 1/16W K3R402 RK73HB1J151J CHIP R 150 J 1/16WR403 RK73HB1J152J CHIP R 1.5K J 1/16W K3R404 RK73HB1J151J CHIP R 150 J 1/16W

R405 RK73HB1J152J CHIP R 1.5K J 1/16W K3R406 RK73HB1J000J CHIP R 0.0 J 1/16WR407,408 RK73HB1J103J CHIP R 10K J 1/16WR409 RK73HB1J470J CHIP R 47 J 1/16WR410-416 RK73HB1J471J CHIP R 470 J 1/16W

R417 RK73HB1J000J CHIP R 0.0 J 1/16WR418 RK73HB1J471J CHIP R 470 J 1/16WR419,420 RK73HB1J000J CHIP R 0.0 J 1/16WR424 RK73HH1J683D CHIP R 68K D 1/16WR425 RK73HH1J333D CHIP R 33K D 1/16W

R426-429 RK73HB1J000J CHIP R 0.0 J 1/16WR431 RK73HB1J474J CHIP R 470K J 1/16WR432,433 RK73HB1J000J CHIP R 0.0 J 1/16WR434 RK73HB1J393J CHIP R 39K J 1/16WR435,436 RK73HB1J104J CHIP R 100K J 1/16W

R437 RK73HB1J471J CHIP R 470 J 1/16WR438,439 RK73HB1J104J CHIP R 100K J 1/16WR440 RK73HB1J000J CHIP R 0.0 J 1/16WR441 RK73HB1J153J CHIP R 15K J 1/16WR442 RK73HB1J102J CHIP R 1.0K J 1/16W

R443 RK73HB1J474J CHIP R 470K J 1/16WR444 RK73HB1J564J CHIP R 560K J 1/16WR445 RK73HB1J154J CHIP R 150K J 1/16WR446 RK73HB1J274J CHIP R 270K J 1/16WR447 RK73HB1J104J CHIP R 100K J 1/16W

R448 RK73HB1J103J CHIP R 10K J 1/16WR449-452 RK73HB1J474J CHIP R 470K J 1/16WR453 RK73HB1J104J CHIP R 100K J 1/16WR454 RK73HB1J474J CHIP R 470K J 1/16WR455 RK73HB1J102J CHIP R 1.0K J 1/16W

R456 RK73HB1J474J CHIP R 470K J 1/16WR457,458 RK73HB1J104J CHIP R 100K J 1/16WR459,460 RK73HB1J102J CHIP R 1.0K J 1/16WR461 RK73HB1J103J CHIP R 10K J 1/16WR462 RK73HB1J102J CHIP R 1.0K J 1/16W

R463 RK73HB1J104J CHIP R 100K J 1/16WR464 RK73HB1J474J CHIP R 470K J 1/16WR465,466 RK73HB1J103J CHIP R 10K J 1/16WR467 RK73HB1J104J CHIP R 100K J 1/16WR468 RK73HB1J000J CHIP R 0.0 J 1/16WR469 RK73HB1J474J CHIP R 470K J 1/16WR470 RK73HB1J683J CHIP R 68K J 1/16W

R471 RK73HB1J000J CHIP R 0.0 J 1/16WR472 RK73HB1J223J CHIP R 22K J 1/16WR473 RK73HB1J332J CHIP R 3.3K J 1/16W

R474,475 RK73HB1J333J CHIP R 33K J 1/16WR477,478 RK73HB1J000J CHIP R 0.0 J 1/16WR479 RK73HB1J102J CHIP R 1.0K J 1/16WR480 RK73HB1J273J CHIP R 27K J 1/16WR481 RK73HB1J474J CHIP R 470K J 1/16W

R482 RK73HB1J103J CHIP R 10K J 1/16WR483 RK73HB1J473J CHIP R 47K J 1/16WR484 RK73HB1J223J CHIP R 22K J 1/16WR485 RK73HB1J103J CHIP R 10K J 1/16WR486 RK73HB1J100J CHIP R 10 J 1/16W

R487-490 RK73HH1J223D CHIP R 22K D 1/16WR491 RK73HB1J104J CHIP R 100K J 1/16WR492 RK73HB1J474J CHIP R 470K J 1/16WR493 RK73HB1J000J CHIP R 0.0 J 1/16WR494-497 RK73HH1J104D CHIP R 100K D 1/16W

R498 RK73HB1J333J CHIP R 33K J 1/16WR499 RK73HB1J223J CHIP R 22K J 1/16WR500 RK73HB1J473J CHIP R 47K J 1/16WR501 RK73HB1J222J CHIP R 2.2K J 1/16WR502,503 RK73HB1J103J CHIP R 10K J 1/16W

R504 RK73HB1J102J CHIP R 1.0K J 1/16WR506 RK73HB1J222J CHIP R 2.2K J 1/16WR507-511 RK73HB1J102J CHIP R 1.0K J 1/16WR512 RK73HB1J101J CHIP R 100 J 1/16WR513-515 RK73HB1J102J CHIP R 1.0K J 1/16W

R516 RK73HB1J101J CHIP R 100 J 1/16WR517 RK73HB1J102J CHIP R 1.0K J 1/16WR518 RK73HB1J101J CHIP R 100 J 1/16WR519-528 RK73HB1J102J CHIP R 1.0K J 1/16WR529-531 RK73HB1J101J CHIP R 100 J 1/16W

R532 RK73HB1J102J CHIP R 1.0K J 1/16WR533-535 RK73HB1J101J CHIP R 100 J 1/16WR536-540 RK73HB1J102J CHIP R 1.0K J 1/16WR541 RK73HB1J101J CHIP R 100 J 1/16WR542 RK73HB1J102J CHIP R 1.0K J 1/16W

R543 RK73HB1J101J CHIP R 100 J 1/16WR544 RK73HB1J102J CHIP R 1.0K J 1/16WR545 RK73HB1J101J CHIP R 100 J 1/16WR546,547 RK73HB1J102J CHIP R 1.0K J 1/16WR548,549 RK73HB1J473J CHIP R 47K J 1/16W

R701-707 RK73HB1J000J CHIP R 0.0 J 1/16WR709-715 RK73HB1J000J CHIP R 0.0 J 1/16WR716 RK73GB2A000J CHIP R 0.0 J 1/10WR717-722 RK73HB1J104J CHIP R 100K J 1/16WR723 RK73HB1J105J CHIP R 1.0M J 1/16W

R724 RK73HB1J104J CHIP R 100K J 1/16WR725 RK73HB1J100J CHIP R 10 J 1/16WR726 RK73HB1J104J CHIP R 100K J 1/16WR727-729 RK73HB1J105J CHIP R 1.0M J 1/16WR730 RK73HB1J471J CHIP R 470 J 1/16W

R731,732 RK73HB1J105J CHIP R 1.0M J 1/16WR733 RK73HB1J473J CHIP R 47K J 1/16WR735 RK73HB1J473J CHIP R 47K J 1/16WR736 RK73HB1J823J CHIP R 82K J 1/16WR737 RK73HB1J153J CHIP R 15K J 1/16WR738 RK73HB1J563J CHIP R 56K J 1/16WR739 RK73HB1J823J CHIP R 82K J 1/16W

NX-300PARTS LIST




21

R740 RK73HB1J000J CHIP R 0.0 J 1/16WR741 RK73HB1J474J CHIP R 470K J 1/16WR742,743 RK73HB1J103J CHIP R 10K J 1/16W

R744 RK73HB1J223J CHIP R 22K J 1/16WR745 RK73HB1J682J CHIP R 6.8K J 1/16WR746 RK73HB1J563J CHIP R 56K J 1/16WR747 RK73HB1J333J CHIP R 33K J 1/16WR748 RK73HB1J103J CHIP R 10K J 1/16W

R749 RK73HB1J472J CHIP R 4.7K J 1/16WR750 RK73HB1J103J CHIP R 10K J 1/16WR751 RK73HB1J000J CHIP R 0.0 J 1/16WR752 RK73HB1J101J CHIP R 100 J 1/16WR753 RK73HB1J683J CHIP R 68K J 1/16W

R754 RK73HB1J564J CHIP R 560K J 1/16WR755 RK73HB1J104J CHIP R 100K J 1/16WR756 RK73HB1J101J CHIP R 100 J 1/16WR757 RK73HB1J223J CHIP R 22K J 1/16WR758 RK73HB1J103J CHIP R 10K J 1/16W

R759 RK73HB1J101J CHIP R 100 J 1/16WR761-764 RK73HB1J223J CHIP R 22K J 1/16WR765 RK73HB1J334J CHIP R 330K J 1/16WR766 RK73HB1J000J CHIP R 0.0 J 1/16WR767 RK73HB1J103J CHIP R 10K J 1/16W

R768 RK73HB1J224J CHIP R 220K J 1/16WR769,770 RK73HB1J334J CHIP R 330K J 1/16WR771 RK73HB1J153J CHIP R 15K J 1/16WR775 RK73HB1J183J CHIP R 18K J 1/16WR777 RK73HB1J473J CHIP R 47K J 1/16W


R784 RK73HB1J104J CHIP R 100K J 1/16WR785 RK73HB1J682J CHIP R 6.8K J 1/16WR786 RK73HB1J000J CHIP R 0.0 J 1/16WR787 RK73HB1J124J CHIP R 120K J 1/16WR788 RK73HB1J473J CHIP R 47K J 1/16W

R789 RK73HB1J154J CHIP R 150K J 1/16WR790 RK73HB1J102J CHIP R 1.0K J 1/16WR791 RK73HB1J474J CHIP R 470K J 1/16WR793 RK73HB1J102J CHIP R 1.0K J 1/16WR794 RK73HB1J104J CHIP R 100K J 1/16W

R795 RK73HB1J000J CHIP R 0.0 J 1/16WR796 RK73HB1J333J CHIP R 33K J 1/16WR797 RK73HB1J102J CHIP R 1.0K J 1/16WR798 RK73HB1J104J CHIP R 100K J 1/16WR799 RK73HB1J334J CHIP R 330K J 1/16W

R800 RK73HB1J474J CHIP R 470K J 1/16WR801 RK73HB1J473J CHIP R 47K J 1/16WR802 RK73HB1J474J CHIP R 470K J 1/16WR803 RK73HB1J103J CHIP R 10K J 1/16WR804 RK73HB1J000J CHIP R 0.0 J 1/16W

R805,806 RK73HB1J473J CHIP R 47K J 1/16WR807 RK73HB1J102J CHIP R 1.0K J 1/16WR808 RK73HB1J471J CHIP R 470 J 1/16WR809 RK73HB1J334J CHIP R 330K J 1/16WR810 RK73HB1J332J CHIP R 3.3K J 1/16WR811 RK73HB1J823J CHIP R 82K J 1/16WR812 RK73HB1J562J CHIP R 5.6K J 1/16W

R813 RK73HB1J273J CHIP R 27K J 1/16WR814 RK73HB1J564J CHIP R 560K J 1/16WR815 RK73HB1J104J CHIP R 100K J 1/16W

R816 RK73HB1J683J CHIP R 68K J 1/16WR818 RK73HB1J104J CHIP R 100K J 1/16WR819,820 RK73HB1J103J CHIP R 10K J 1/16WR821 RK73HB1J104J CHIP R 100K J 1/16WR822,823 RK73HB1J103J CHIP R 10K J 1/16W

R824 RK73HB1J393J CHIP R 39K J 1/16WR825 RK73HB1J104J CHIP R 100K J 1/16WR826 RK73HB1J334J CHIP R 330K J 1/16WR827 RK73HB1J184J CHIP R 180K J 1/16WR828,829 RK73HB1J000J CHIP R 0.0 J 1/16W

R830 RK73HB1J105J CHIP R 1.0M J 1/16WR831 RK73HB1J474J CHIP R 470K J 1/16WR832 RK73HB1J473J CHIP R 47K J 1/16WR833 RK73HB1J684J CHIP R 680K J 1/16WR834 RK73HB1J000J CHIP R 0.0 J 1/16W


R840 RK73HB1J123J CHIP R 12K J 1/16WR841 RK73HB1J564J CHIP R 560K J 1/16WR842 RK73HB1J104J CHIP R 100K J 1/16WR843 RK73HB1J102J CHIP R 1.0K J 1/16WR844 RK73HB1J472J CHIP R 4.7K J 1/16W

R845 RK73HB1J104J CHIP R 100K J 1/16WR846 RK73HB1J471J CHIP R 470 J 1/16WR847 RK73HB1J182J CHIP R 1.8K J 1/16WR848 RK73HB1J000J CHIP R 0.0 J 1/16W KR849,850 RK73HB1J000J CHIP R 0.0 J 1/16W K3

R850 RK73HB1J000J CHIP R 0.0 J 1/16W KR851,852 RK73HB1J683J CHIP R 68K J 1/16W

VR1 2B ∗ R31-0666-05 VARIABLE RESISTOR(VOL)S1 2B ∗ S60-0437-05 ROTARY SWITCH(CH)

D11 MA2S111-F DIODED12 -16 ∗ 1SS416 DIODED17 EMZ6.8N ZENER DIODED18 ,19 ∗ HZC6.8-E ZENER DIODED20 ,21 NNCD6.8G-A ZENER DIODE

D22 ,23 DA221 DIODED101 MA2S111-F DIODE K3D102 ∗ 1SS416 DIODED401-405 1SS388F DIODED406 HRB0502A DIODE

D407 MA2S111-F DIODED408 1SS301F DIODED409,410 MA2S111-F DIODED411 ∗ 1SS416 DIODED412 1SS301F DIODE

D413 1SS388F DIODED414,415 ∗ 1SS416 DIODED416,417 1SS388F DIODED701 1SS301F DIODED702 MA2S111-F DIODE

D703-706 RB706F-40 DIODE

If a part reference number is listed in a shaded box, that part does not come with the PCB.

NX-300PARTS LIST

22



TX-RX UNIT (X57-7370-10)

D707 DA221 DIODEIC1 LMC7101BIM5 MOS-ICIC101 Note 1 ROM ICIC102 Note 1 MICROPROCESSOR ICIC103 Note 1 SRAM ICIC104 TC7SH08FU-F MOS-IC

IC105 ∗ XC6109C29ANN ANALOGUE ICIC106 RV5C386A MOS-ICIC107 ∗ SM5023CNDH-G MOS-ICIC108 Note 1 MOS-ICIC109 TC7SH08FU-F MOS-IC

IC401 ∗ TC74LCX245FK MOS-ICIC402 ∗ TC7WZ245FK-F MOS-ICIC403 ∗ LM2682MMX MOS-ICIC404 XC6204B332M MOS-ICIC405 ∗ XC6205B152PRN ANALOGUE IC

IC406 XC6204B332M MOS-ICIC407 ∗ LT1616ES6-PBF ANALOGUE ICIC408 TC75S51FE(F) MOS-ICIC409 TC7W66FK-F MOS-ICIC410 ∗ MCP6021-E/OT MOS-IC

IC411 ∗ NJM2880U105ZB ANALOGUE ICIC412,413 ∗ TPA6201A1DRBR ANALOGUE ICIC414 XC61CC5602NR MOS-ICIC415 TC7SET08FU-F MOS-ICIC416 ∗ S-812C31BPI-G ANALOGUE IC

IC417 ∗ TC7WH126FK MOS-ICIC418 TC7WT125FUF MOS-ICIC701 Note 1 MOS-ICIC702 TC75W51FK(F) MOS-ICIC703 M62364FP-F MOS-IC

IC704 TC75S51FE(F) MOS-ICIC705 TC75W51FK(F) MOS-ICIC706 TC75S51FE(F) MOS-ICIC707 TC7W53FK(F) MOS-ICIC708 XC6204B502PR MOS-IC

IC709 TC7W53FK(F) MOS-ICIC710,711 TC75W51FK(F) MOS-ICIC712 TC7S66FUF MOS-ICIC713 TC75W51FK(F) MOS-ICIC714 TC7W53FK(F) MOS-IC

IC715 TC75S51FE(F) MOS-ICIC716 TC75W51FK(F) MOS-IC

Q1 2SA1362-F(GR) TRANSISTORQ2 2SC4617(S) TRANSISTORQ3 ,4 SSM3K15TE(F) FETQ5 2SJ347F FETQ101 2SA1832(GR)F TRANSISTOR K3

Q102 2SC4617(S) TRANSISTOR K3Q103 SSM3K15TE(F) FET K3Q401,402 ∗ SSM6N16FE-F FETQ403 2SA1955A-F TRANSISTORQ404 SSM3K15TE(F) FET

Q405 ∗ SSM6N16FE-F FETQ406 2SB1132(Q,R) TRANSISTORQ407 UMG3N TRANSISTORQ408 ∗ EMD12 TRANSISTORQ409 2SA1955A-F TRANSISTOR

Q410 SSM3K15TE(F) FET

Q411 ∗ SSM6N16FE-F FETQ412 SSM3K15TE(F) FETQ413 2SA1955A-F TRANSISTORQ414,415 ∗ EMD12 TRANSISTOR

Q701 2SA1832(GR)F TRANSISTORQ702,703 SSM3K15TE(F) FETQ704 2SC4617(S) TRANSISTORQ705 2SC4738(GR)F TRANSISTORQ706 2SA1832(GR)F TRANSISTOR

Q707 2SJ243-A FET

TH1 ERTJ0EV104H THERMISTORTH701 ERTJ0EV104H THERMISTOR

D900 B30-2278-05 LED(RED/YELLOW)

C500 CK73HB1A104K CHIP C 0.10UF KC501 CC73HCH1H101J CHIP C 100PF JC502 CK73HB1H471K CHIP C 470PF KC503 CK73HB1A104K CHIP C 0.10UF KC504 CK73HB1C103K CHIP C 0.010UF K

C505 CC73HCH1H101J CHIP C 100PF JC506 CC73HCH1H100C CHIP C 10PF CC508 CK73HB1C103K CHIP C 0.010UF KC509 CC73HCH1H100C CHIP C 10PF CC511 CK73FB0J106K CHIP C 10UF K

C512 CK73HB1C103K CHIP C 0.010UF KC513 CC73HCH1H101J CHIP C 100PF JC514-516 CK73HB1C103K CHIP C 0.010UF KC517-519 CC73HCH1H101J CHIP C 100PF JC520 CK73GB1E105K CHIP C 1.0UF K

C521 CC73HCH1H101J CHIP C 100PF JC522 CK73HB1A104K CHIP C 0.10UF KC523,524 CC73HCH1H101J CHIP C 100PF JC525 CC73HCH1H470J CHIP C 47PF JC526 CK73HB1A104K CHIP C 0.10UF K

C527-529 CC73HCH1H101J CHIP C 100PF JC533 CK73HB1H471K CHIP C 470PF KC534 CC73HCH1H101J CHIP C 100PF JC535 CS77AA1VR15M CHIP TNTL 0.15UF 35WVC536 CC73HCH1H470J CHIP C 47PF J

C537 CC73HCH1H050B CHIP C 5.0PF BC539 ∗ CS77BA1D100M CHIP TNTL 10UF 20WVC541 C92-0863-05 CHIP TNTL 0.047UF 35WVC542 C93-0787-05 CERAMIC 0.1UF 50WVC543 CC73HCH1H030B CHIP C 3.0PF B

C546 CK73HB1H472K CHIP C 4700PF KC547,548 CC73HCH1H101J CHIP C 100PF JC550 CC73HCH1H050B CHIP C 5.0PF BC553 CC73HCH1H100B CHIP C 10PF BC554 CC73HCH1H470J CHIP C 47PF J

C555 CK73HB0J105K CHIP C 1.0UF KC556-559 CK73HB1H471K CHIP C 470PF KC562 CK73HB0J105K CHIP C 1.0UF KC565 CC73HCH1H270J CHIP C 27PF JC566 CC73HCH1H560J CHIP C 56PF J

C567,568 CC73HCH1H0R5B CHIP C 0.5PF BC570 CC73HCH1HR75B CHIP C 0.75PF BC571 CC73HCH1H040B CHIP C 4.0PF B

Note 1 : This part cannot be replaced. Therefore, this part is not supplied as a service part.

TX-RX UNIT (X57-7370-10)


NX-300PARTS LIST



TX-RX UNIT (X57-7370-10)

23

C572 CK73FB0J106K CHIP C 10UF KC573 CC73HCH1H050B CHIP C 5.0PF B

C574 CC73HCH1H020B CHIP C 2.0PF BC575,576 CC73HCH1H050B CHIP C 5.0PF BC577 CK73HB1H471K CHIP C 470PF KC578 CK73GB0J475K CHIP C 4.7UF KC579 CC73HCH1H040B CHIP C 4.0PF B

C580 CK73HB1H471K CHIP C 470PF KC581 CC73HCH1H0R5B CHIP C 0.5PF BC582 CK73HB1H471K CHIP C 470PF KC583 CC73HCH1H0R5B CHIP C 0.5PF BC584,585 CK73HB1H471K CHIP C 470PF K

C586 CC73HCH1H070B CHIP C 7.0PF BC587 CK73HB1H471K CHIP C 470PF KC588 CC73HCH1H100B CHIP C 10PF BC600 CK73HB1A104K CHIP C 0.10UF KC601 CC73HCH1H101J CHIP C 100PF J

C602 CK73HB1A104K CHIP C 0.10UF KC603 CC73HCH1H100B CHIP C 10PF BC604,605 CK73HB1H471K CHIP C 470PF KC607 CC73HCH1H070B CHIP C 7.0PF BC610-612 CK73HB1H471K CHIP C 470PF K

C613 CC73HCH1H070B CHIP C 7.0PF BC614,615 CK73HB1H471K CHIP C 470PF KC617,618 CK73HB1H471K CHIP C 470PF KC619 CK73HB1A104K CHIP C 0.10UF KC621 CC73HCH1H150J CHIP C 15PF J

C622 CK73HB1H471K CHIP C 470PF KC623 CC73HCH1H150J CHIP C 15PF JC625 CK73HB1H471K CHIP C 470PF KC626 CK73HB1A104K CHIP C 0.10UF KC627 CC73HCH1H100B CHIP C 10PF B

C628 CC73HCH1H100C CHIP C 10PF CC629 CK73HB1H471K CHIP C 470PF KC630 CK73GB1E105K CHIP C 1.0UF KC631 CS77AA1A6R8M CHIP TNTL 6.8UF 10WVC632 CK73HB1H471K CHIP C 470PF K

C634-637 CK73HB1H471K CHIP C 470PF KC639 CC73HCH1H390J CHIP C 39PF JC640 CC73HCH1H470J CHIP C 47PF JC641 CC73HCH1H100C CHIP C 10PF CC642,643 CC73HCH1H151J CHIP C 150PF J

C645 CK73GB1C104K CHIP C 0.10UF KC646 CK73GB1E105K CHIP C 1.0UF KC647 C93-0941-05 CERAMIC 18PF 50WVC648,649 CK73HB1C103K CHIP C 0.010UF KC650 C93-0937-05 CERAMIC 12PF 50WV

C651 CK73HB1H471K CHIP C 470PF KC652 C93-0951-05 CERAMIC 47PF 50WVC653 CK73HB1H471K CHIP C 470PF KC654 ∗ C93-0987-05 CERAMIC 7.5PF 50WVC660 CC73GCH1H101J CHIP C 100PF J

C661 CK73HB1H471K CHIP C 470PF KC662 CC73GCH1H010B CHIP C 1.0PF BC663 CC73GCH1H101J CHIP C 100PF JC664 CC73GCH1H040B CHIP C 4.0PF BC665 CC73GCH1H020B CHIP C 2.0PF B

C666 CC73GCH1H050B CHIP C 5.0PF BC667 CC73GCH1H1R5B CHIP C 1.5PF B

C668 CC73GCH1H080B CHIP C 8.0PF BC669 CC73GCH1H040B CHIP C 4.0PF BC670 CK73HB1H471K CHIP C 470PF K

C671 CC73HCH1H070B CHIP C 7.0PF BC672 CK73HB1H471K CHIP C 470PF KC689-691 CK73HB1A104K CHIP C 0.10UF KC700 CC73HCH1H070B CHIP C 7.0PF BC701 CK73HB1C103K CHIP C 0.010UF K

C703 CK73HB1A104K CHIP C 0.10UF KC704 CC73HCH1H470J CHIP C 47PF JC706 CC73HCH1H100B CHIP C 10PF BC707 CC73HCH1H680J CHIP C 68PF JC708 CC73HCH1H101J CHIP C 100PF J

C709-711 CK73HB1A104K CHIP C 0.10UF KC712 CC73HCH1H680J CHIP C 68PF JC713 ∗ CK73FB1A106K CHIP C 10UF KC715 CK73HB1C103K CHIP C 0.010UF KC717 CK73HB1C103K CHIP C 0.010UF K

C718 CK73HB1A104K CHIP C 0.10UF KC719 ∗ CK73FB1A106K CHIP C 10UF KC720 CC73HCH1H100B CHIP C 10PF BC721 CK73HB1A104K CHIP C 0.10UF KC722 CC73HCH1H470G CHIP C 47PF G

C723,724 CK73HB1A104K CHIP C 0.10UF KC725 CK73HB1C103K CHIP C 0.010UF KC727,728 CK73HB1A104K CHIP C 0.10UF KC729 CK73FB1E474K CHIP C 0.47UF KC730 CK73HB1C103K CHIP C 0.010UF K

C732 CK73HB1H471K CHIP C 470PF KC733,734 CK73HB1C103K CHIP C 0.010UF KC735 CC73HCH1H470G CHIP C 47PF GC736 CK73HB1C103K CHIP C 0.010UF KC737 CC73HCH1H020B CHIP C 2.0PF B

C738 CC73HCH1H220G CHIP C 22PF GC739 CC73HCH1H060B CHIP C 6.0PF BC740,741 CK73HB1C103K CHIP C 0.010UF KC742 CK73FB1A475K CHIP C 4.7UF KC743 CK73HB1C103K CHIP C 0.010UF K

C744,745 CK73HB1H471K CHIP C 470PF KC746 CC73HCH1H090B CHIP C 9.0PF BC747 CC73HCH1H100B CHIP C 10PF BC748 CK73HB1H471K CHIP C 470PF KC749 CC73HCH1H020B CHIP C 2.0PF B

C750 CK73HB1C103K CHIP C 0.010UF KC751 CC73HCH1H100B CHIP C 10PF BC752 CK73HB1H471K CHIP C 470PF KC753 CC73HCH1H020B CHIP C 2.0PF BC754 CC73HCH1H030B CHIP C 3.0PF B

C755 CC73HCH1H040B CHIP C 4.0PF BC756 CC73HCH1H090B CHIP C 9.0PF BC758 CK73HB1H471K CHIP C 470PF KC759,760 CK73HB1A104K CHIP C 0.10UF KC761 CK73GB1E105K CHIP C 1.0UF K

C764 CC73HCH1H1R5B CHIP C 1.5PF BC765 CK73HB1H471K CHIP C 470PF KC766 CK73GB1H104K CHIP C 0.10UF KC767 CC73HCH1H090B CHIP C 9.0PF BC768 CC73HCH1H010B CHIP C 1.0PF B

C769 CK73HB1H471K CHIP C 470PF K

NX-300PARTS LIST

24



TX-RX UNIT (X57-7370-10)

C770 CC73HCH1H040B CHIP C 4.0PF BC771 CK73HB1H471K CHIP C 470PF KC772 CC73HCH1H090B CHIP C 9.0PF BC773 CC73HCH1H010B CHIP C 1.0PF B

C774 CC73HCH1H030B CHIP C 3.0PF BC775 CK73HB1H471K CHIP C 470PF KC776 CC73HCH1H090B CHIP C 9.0PF BC777,778 CK73HB1H471K CHIP C 470PF KC779 CK73HB1C103K CHIP C 0.010UF K

C780 CK73GB1H104K CHIP C 0.10UF KC782 CC73HCH1H0R5B CHIP C 0.5PF BC783 CK73GB1E105K CHIP C 1.0UF KC784-786 CK73HB1H471K CHIP C 470PF KC788 CK73GB1H104K CHIP C 0.10UF K

C789 CK73HB1H471K CHIP C 470PF KC790 CK73HB1A104K CHIP C 0.10UF KC791 CK73HB1H471K CHIP C 470PF KC792 CK73HB1A104K CHIP C 0.10UF KC794,795 CK73HB1H471K CHIP C 470PF K

C796 CC73HCH1H090B CHIP C 9.0PF BC798 CC73HCH1H1R5B CHIP C 1.5PF BC799 CK73HB1H471K CHIP C 470PF KC800 CC73HCH1H020B CHIP C 2.0PF BC801 CK73HB1H471K CHIP C 470PF K

C802,803 CC73HCH1H040B CHIP C 4.0PF BC804 CC73HCH1H090B CHIP C 9.0PF BC807 CC73HCH1H050B CHIP C 5.0PF BC809 CC73GCH1H180J CHIP C 18PF JC810 CC73HCH1H020B CHIP C 2.0PF B

C811 CC73HCH1H090B CHIP C 9.0PF BC849 CK73HB1H471K CHIP C 470PF KC850 CC73HCH1H101J CHIP C 100PF JC900 CK73GB1H102K CHIP C 1000PF KC901,902 CK73HB1H471K CHIP C 470PF K

C903 CK73GB1H471K CHIP C 470PF KC904-908 CC73HCH1H470J CHIP C 47PF JC910 CC73HCH1H470J CHIP C 47PF JC912-920 CC73HCH1H470J CHIP C 47PF JC922,923 CC73HCH1H470J CHIP C 47PF J

C925-943 CC73HCH1H470J CHIP C 47PF JC944 CK73HB1H471K CHIP C 470PF KC945,946 CC73HCH1H470J CHIP C 47PF JC947 CK73HB1H471K CHIP C 470PF KC948,949 CK73GB1E105K CHIP C 1.0UF K

C950 C92-0765-05 CHIP-TAN 4.7UF 16WVC951 ∗ CK73GB1C224K CHIP C 0.22UF KC952 CK73HB1H102K CHIP C 1000PF KC953 CK73HB1A104K CHIP C 0.10UF KC954 ∗ CK73GB1C224K CHIP C 0.22UF K

C955,956 CK73HB1H102K CHIP C 1000PF KC957,958 CK73GB1E105K CHIP C 1.0UF KC961 CK73HB1H471K CHIP C 470PF KC962 CC73HCH1E181J CHIP C 180PF JC963 CK73GB1E105K CHIP C 1.0UF K

C964,965 ∗ CK73GB1C224K CHIP C 0.22UF KC966 CC73HCH1H220J CHIP C 22PF JC967 CK73HB1H471K CHIP C 470PF KC968 ∗ CK73GB1C224K CHIP C 0.22UF KC969 CK73GB1E105K CHIP C 1.0UF K

C970,971 CK73HB1H102K CHIP C 1000PF KC972-974 CK73GB1E105K CHIP C 1.0UF KC975 ∗ C93-0987-05 CERAMIC 7.5PF 50WVC976 CC73HCH1H470J CHIP C 47PF JC977 ∗ CK73HB1A474K CHIP C 0.47UF K

CN600 ∗ E23-1326-05 TERMINALCN737 E40-6358-05 SOCKET FOR PIN ASSYCN900 ∗ E40-6422-15 SOCKET FOR PIN ASSYCN901 ∗ E40-6752-05 FLAT CABLE CONNECTORCN902 ∗ E23-1326-05 TERMINAL

F900 F53-0324-05 FUSE

CF700 L72-1017-05 CERAMIC FILTERCF701 ∗ L72-1020-05 CERAMIC FILTER

L500 L41-4795-39 SMALL FIXED INDUCTOR(4.7U/2520L503 L92-0163-05 BEADS COREL504 L40-1275-92 SMALL FIXED INDUCTOR(12NH/1608L508,509 L40-2285-92 SMALL FIXED INDUCTOR(220NH/160L513 L40-1878-92 SMALL FIXED INDUCTOR(18NH/1608

L514-519 L40-2285-92 SMALL FIXED INDUCTOR(220NH/160L520 L40-1878-67 SMALL FIXED INDUCTOR(18NH/8)L521 L40-2278-67 SMALL FIXED INDUCTOR(22NH/8)L522 L40-2285-92 SMALL FIXED INDUCTOR(220NH/160L523 L92-0446-05 BEADS CORE

L524-526 L40-2285-92 SMALL FIXED INDUCTOR(220NH/160L527 L92-0446-05 BEADS COREL528 L40-2775-71 SMALL FIXED INDUCTOR(27NH/1005L598,599 L92-0163-05 BEADS COREL600 L40-2275-92 SMALL FIXED INDUCTOR(22NH/1608

L602 L40-1875-92 SMALL FIXED INDUCTOR(18NH/1608L603 L40-1575-92 SMALL FIXED INDUCTOR(15NH/1608L604 L92-0138-05 CHIP FERRITEL605 L40-6865-92 SMALL FIXED INDUCTOR(6.8NH/160L606 L41-1875-43 SMALL FIXED INDUCTOR(18NH/2015

L607 L92-0149-05 CHIP FERRITEL609 L34-4575-05 AIR-CORE COILL610 L92-0149-05 CHIP FERRITEL611 L41-2285-43 SMALL FIXED INDUCTOR(220NH/201L612-614 L34-4564-05 AIR-CORE COIL

L615 L40-1575-57 SMALL FIXED INDUCTOR(15.0N/5%/L701 L40-5681-86 SMALL FIXED INDUCTOR(0.56UH/16L703 ∗ L41-4778-45 SMALL FIXED INDUCTOR(47NH/1608L704 L40-1891-86 SMALL FIXED INDUCTOR(1.8U/1608L705,706 L92-0138-05 CHIP FERRITE

L707 L41-2785-39 SMALL FIXED INDUCTOR(0.27U/252L708 L41-5685-39 SMALL FIXED INDUCTOR(0.56U/252L709,710 L40-1875-92 SMALL FIXED INDUCTOR(18NH/1608L711 L40-2275-92 SMALL FIXED INDUCTOR(22NH/1608L713-715 L41-8268-14 SMALL FIXED INDUCTOR(8.2NH/201

L716 L92-0138-05 CHIP FERRITEL717 L41-2285-14 SMALL FIXED INDUCTOR(220NH/201L720 L40-1075-92 SMALL FIXED INDUCTOR(10NH/1608L721,722 L41-8268-14 SMALL FIXED INDUCTOR(8.2NH/201L723 L34-4564-05 AIR-CORE COIL

L725 L40-8265-92 SMALL FIXED INDUCTOR(8.2NH/160L726 L41-3378-03 SMALL FIXED INDUCTOR(33N/2P/16L780 L40-1085-57 SMALL FIXED INDUCTOR(100N/5%/1L900 L92-0149-05 CHIP FERRITEL901 L33-1462-05 SMALL FIXED INDUCTOR

NX-300PARTS LIST



TX-RX UNIT (X57-7370-10)

25

X500 ∗ L77-3016-05 TCXO (19.2M/4P/12)XF700 ∗ L71-0640-05 MCF (58.05MHZ/16)

R430 RK73GB2A000J CHIP R 0.0 J 1/10WR431,432 RK73HB1J000J CHIP R 0.0 J 1/16WR500,501 RN73HH1J104D CHIP R 100K D 1/16WR502 RK73HB1J124J CHIP R 120K J 1/16WR503 RK73HB1J100J CHIP R 10 J 1/16W

R504 RK73HB1J104J CHIP R 100K J 1/16WR505 RK73HB1J000J CHIP R 0.0 J 1/16WR506 RK73HB1J473J CHIP R 47K J 1/16WR511-514 RK73HB1J100J CHIP R 10 J 1/16WR515 RK73HB1J472J CHIP R 4.7K J 1/16W

R519 RK73HB1J100J CHIP R 10 J 1/16WR520 RK73HB1J102J CHIP R 1.0K J 1/16WR521,522 RK73HB1J100J CHIP R 10 J 1/16WR523 RK73HB1J102J CHIP R 1.0K J 1/16WR527 RK73HB1J000J CHIP R 0.0 J 1/16W

R529 RK73HB1J102J CHIP R 1.0K J 1/16WR530 RK73HB1J473J CHIP R 47K J 1/16WR531 RK73HB1J683J CHIP R 68K J 1/16WR532 RK73HB1J000J CHIP R 0.0 J 1/16WR533 RK73HH1J184D CHIP R 180K D 1/16W

R534 RK73HH1J473D CHIP R 47K D 1/16WR535 RK73HB1J151J CHIP R 150 J 1/16WR536 RK73HB1J000J CHIP R 0.0 J 1/16WR537 RK73HB1J102J CHIP R 1.0K J 1/16WR538 ∗ RK73HH1J391D CHIP R 390 D 1/16W

R539 RK73HB1J106J CHIP R 10M J 1/16WR541 RK73HB1J103J CHIP R 10K J 1/16WR542-545 RK73HB1J000J CHIP R 0.0 J 1/16WR546 RK73HB1J104J CHIP R 100K J 1/16WR547 RK73HB1J000J CHIP R 0.0 J 1/16W

R548 RK73HB1J104J CHIP R 100K J 1/16WR549 RK73HB1J271J CHIP R 270 J 1/16WR550 RK73HB1J154J CHIP R 150K J 1/16WR552 RK73HB1J274J CHIP R 270K J 1/16WR554,555 RK73HB1J473J CHIP R 47K J 1/16W

R557 RK73HB1J152J CHIP R 1.5K J 1/16WR558 RK73HB1J474J CHIP R 470K J 1/16WR559 ∗ RK73HH1J181D CHIP R 180 D 1/16WR560 RK73HB1J220J CHIP R 22 J 1/16WR561 ∗ RK73HH1J181D CHIP R 180 D 1/16W

R562 RK73HB1J102J CHIP R 1.0K J 1/16WR563 RK73HB1J473J CHIP R 47K J 1/16WR564 RK73HB1J154J CHIP R 150K J 1/16WR565 RK73HB1J101J CHIP R 100 J 1/16WR566 RK73HH1J474D CHIP R 470K D 1/16W

R567 RK73HB1J472J CHIP R 4.7K J 1/16WR568 RK73HB1J474J CHIP R 470K J 1/16WR570,571 RK73HB1J000J CHIP R 0.0 J 1/16WR572 RK73HB1J100J CHIP R 10 J 1/16WR574-576 RK73HB1J000J CHIP R 0.0 J 1/16W

R599 RK73HB1J104J CHIP R 100K J 1/16WR600 RK73HB1J102J CHIP R 1.0K J 1/16WR601 RK73HB1J183J CHIP R 18K J 1/16WR602 RK73HB1J124J CHIP R 120K J 1/16WR603 RK73HB1J222J CHIP R 2.2K J 1/16W

R604 RK73HB1J682J CHIP R 6.8K J 1/16WR605 RK73HB1J103J CHIP R 10K J 1/16W

R606 RK73HB1J331J CHIP R 330 J 1/16WR607 RK73HB1J222J CHIP R 2.2K J 1/16WR608 RK73HB1J470J CHIP R 47 J 1/16W

R609 RK73HB1J000J CHIP R 0.0 J 1/16WR610 RK73HB1J472J CHIP R 4.7K J 1/16WR612 RK73HB1J472J CHIP R 4.7K J 1/16WR616 RK73HB1J181J CHIP R 180 J 1/16WR617 RK73HB1J331J CHIP R 330 J 1/16W

R618 RK73HB1J220J CHIP R 22 J 1/16WR620 RK73HB1J000J CHIP R 0.0 J 1/16WR622 RK73HB1J101J CHIP R 100 J 1/16WR623 RK73HB1J103J CHIP R 10K J 1/16WR624 RK73HB1J473J CHIP R 47K J 1/16W

R626 RK73HB1J121J CHIP R 120 J 1/16WR627,628 RK73HB1J000J CHIP R 0.0 J 1/16WR629 RK73HB1J273J CHIP R 27K J 1/16WR630 RK73HB1J333J CHIP R 33K J 1/16WR631 RK73HB1J470J CHIP R 47 J 1/16W

R632 RK73HB1J103J CHIP R 10K J 1/16WR633 RK73HB1J101J CHIP R 100 J 1/16WR634 RK73HB1J000J CHIP R 0.0 J 1/16WR635 RK73HB1J561J CHIP R 560 J 1/16WR636 RK73HB1J221J CHIP R 220 J 1/16W

R639 RK73HB1J103J CHIP R 10K J 1/16WR641 RK73HB1J103J CHIP R 10K J 1/16WR642 RK73EB2ER39K CHIP R 0.39 K 1/4WR644 RK73HB1J470J CHIP R 47 J 1/16WR645 RK73EB2ER39K CHIP R 0.39 K 1/4W

R646 RK73HB1J333J CHIP R 33K J 1/16WR647 RK73EB2ER39K CHIP R 0.39 K 1/4WR648,649 RK73HH1J154D CHIP R 150K D 1/16WR650 RK73GB2A000J CHIP R 0.0 J 1/10WR651-654 RK73HH1J274D CHIP R 270K D 1/16W

R655 RK73HB1J103J CHIP R 10K J 1/16WR656 RK73HB1J563J CHIP R 56K J 1/16WR657 RK73HB1J000J CHIP R 0.0 J 1/16WR658 RK73HB1J182J CHIP R 1.8K J 1/16WR659 RK73HB1J474J CHIP R 470K J 1/16W

R660 RK73HB1J473J CHIP R 47K J 1/16WR661 RK73HB1J104J CHIP R 100K J 1/16WR663 RK73FB2B000J CHIP R 0.0 J 1/8WR664 RK73HB1J000J CHIP R 0.0 J 1/16WR665,666 RK73HB1J271J CHIP R 270 J 1/16W

R667 RK73EB2E823J CHIP R 82K J 1/4WR669 RK73HB1J471J CHIP R 470 J 1/16WR670 RK73HB1J224J CHIP R 220K J 1/16WR701 RK73HB1J561J CHIP R 560 J 1/16WR702 RK73HB1J334J CHIP R 330K J 1/16W

R703 RK73HB1J100J CHIP R 10 J 1/16WR704 RK73HB1J102J CHIP R 1.0K J 1/16WR705 RK73HB1J000J CHIP R 0.0 J 1/16WR709 RK73HB1J103J CHIP R 10K J 1/16WR710 RK73HB1J000J CHIP R 0.0 J 1/16W

R712 RK73HB1J103J CHIP R 10K J 1/16WR714 RK73HB1J100J CHIP R 10 J 1/16WR717 RK73HB1J473J CHIP R 47K J 1/16WR718 RK73HB1J183J CHIP R 18K J 1/16WR719 RK73HB1J274J CHIP R 270K J 1/16W

R720 RK73HB1J222J CHIP R 2.2K J 1/16W

NX-300PARTS LIST

26



TX-RX UNIT (X57-7370-10)

R721 RK73HB1J103J CHIP R 10K J 1/16WR722 RK73HB1J472J CHIP R 4.7K J 1/16WR724 RK73HB1J104J CHIP R 100K J 1/16WR725 RK73HB1J223J CHIP R 22K J 1/16W

R726 RK73HB1J183J CHIP R 18K J 1/16WR727 RK73HB1J222J CHIP R 2.2K J 1/16WR728 RK73HB1J221J CHIP R 220 J 1/16WR730 RK73HB1J000J CHIP R 0.0 J 1/16WR731 RK73HB1J103J CHIP R 10K J 1/16W

R733 RK73HB1J564J CHIP R 560K J 1/16WR735 RK73HB1J101J CHIP R 100 J 1/16WR736 RK73HB1J104J CHIP R 100K J 1/16WR737 RK73HB1J221J CHIP R 220 J 1/16WR738 RK73HB1J272J CHIP R 2.7K J 1/16W

R739 RK73HB1J221J CHIP R 220 J 1/16WR740 RK73HB1J470J CHIP R 47 J 1/16WR742 RK73HB1J472J CHIP R 4.7K J 1/16WR743 RK73HB1J681J CHIP R 680 J 1/16WR744 RK73HB1J221J CHIP R 220 J 1/16W

R745 RK73HB1J102J CHIP R 1.0K J 1/16WR746 RK73HB1J104J CHIP R 100K J 1/16WR747 RK73HB1J154J CHIP R 150K J 1/16WR748 RK73HB1J104J CHIP R 100K J 1/16WR749 RK73HB1J184J CHIP R 180K J 1/16W

R750 RK73GB2A000J CHIP R 0.0 J 1/10WR752,753 RK73HB1J000J CHIP R 0.0 J 1/16WR755 RK73HB1J472J CHIP R 4.7K J 1/16WR757 RK73HB1J104J CHIP R 100K J 1/16WR758 RK73HB1J103J CHIP R 10K J 1/16W

R759,760 RK73HB1J104J CHIP R 100K J 1/16WR761 RK73HB1J101J CHIP R 100 J 1/16WR762 RK73HB1J103J CHIP R 10K J 1/16WR763 RK73HB1J824J CHIP R 820K J 1/16WR764 RK73HB1J104J CHIP R 100K J 1/16W

R765 RK73HB1J000J CHIP R 0.0 J 1/16WR768 RK73HB1J000J CHIP R 0.0 J 1/16WR769 RK73HB1J103J CHIP R 10K J 1/16WR770 RK73HB1J680J CHIP R 68 J 1/16WR771 RK73HB1J181J CHIP R 180 J 1/16W

R772 RK73HB1J000J CHIP R 0.0 J 1/16WR773 RK73HB1J824J CHIP R 820K J 1/16WR774,775 RK73HB1J104J CHIP R 100K J 1/16WR777 RK73HB1J103J CHIP R 10K J 1/16WR778 RK73HB1J104J CHIP R 100K J 1/16W

R779 RK73HB1J683J CHIP R 68K J 1/16WR780 RK73HB1J000J CHIP R 0.0 J 1/16WR781 RK73HB1J182J CHIP R 1.8K J 1/16WR783 RK73HB1J224J CHIP R 220K J 1/16WR784 RK73HB1J474J CHIP R 470K J 1/16W

R785 RK73HB1J104J CHIP R 100K J 1/16WR786 RK73HB1J000J CHIP R 0.0 J 1/16WR788 RK73HB1J104J CHIP R 100K J 1/16WR790 RK73HB1J104J CHIP R 100K J 1/16WR791 RK73HB1J000J CHIP R 0.0 J 1/16W

R792 RK73HB1J104J CHIP R 100K J 1/16WR794,795 RK73HB1J103J CHIP R 10K J 1/16WR796 RK73HB1J000J CHIP R 0.0 J 1/16WR797 RK73HB1J473J CHIP R 47K J 1/16WR798 RK73HB1J470J CHIP R 47 J 1/16W

R799 RK73HB1J000J CHIP R 0.0 J 1/16WR900 RK73HB1J391J CHIP R 390 J 1/16WR901 RK73GB2A000J CHIP R 0.0 J 1/10WR902 RK73HB1J100J CHIP R 10 J 1/16WR903 RK73HB1J821J CHIP R 820 J 1/16W

R904 RK73HB1J000J CHIP R 0.0 J 1/16WR905 RK73HB1J330J CHIP R 33 J 1/16WR906 RK73HB1J474J CHIP R 470K J 1/16WR907 RK73GB2A100J CHIP R 10 J 1/10WR908 RK73HB1J473J CHIP R 47K J 1/16W

R909 RK73GB2A000J CHIP R 0.0 J 1/10WR910-912 RK73HB1J474J CHIP R 470K J 1/16WR913 RK73HB1J102J CHIP R 1.0K J 1/16WR914 RK73HB1J154J CHIP R 150K J 1/16WR915-917 RK73HB1J474J CHIP R 470K J 1/16W

R918,919 RK73HB1J102J CHIP R 1.0K J 1/16WR920,921 RK73HB1J473J CHIP R 47K J 1/16WR922 RK73HB1J102J CHIP R 1.0K J 1/16WR923 RK73HB1J123J CHIP R 12K J 1/16WR925 RK73HH1J334D CHIP R 330K D 1/16W

R926 RK73HH1J223D CHIP R 22K D 1/16WR927 RK73HB1J102J CHIP R 1.0K J 1/16WR928 RK73HB1J000J CHIP R 0.0 J 1/16WR929 RK73HB1J102J CHIP R 1.0K J 1/16W

S1 S70-0483-05 TACT SWITCH

D501 HSC119 DIODED505 DA221 DIODED506,507 1SV325F VARIABLE CAPACITANCE DIODED510,511 1SV282-F VARIABLE CAPACITANCE DIODED514-517 1SV282-F VARIABLE CAPACITANCE DIODE

D518 HSC119 DIODED519 1SV278F VARIABLE CAPACITANCE DIODED600,601 HSC277 DIODED604 HZU2ALL ZENER DIODED605 HZU5CLL ZENER DIODE

D606,607 HVC131 DIODED608 HSC119 DIODED700 HSC119 DIODED702-704 1SV286F VARIABLE CAPACITANCE DIODED705 HSC119 DIODE

D706 1SV286F VARIABLE CAPACITANCE DIODED708 1SV286F VARIABLE CAPACITANCE DIODED709 HVC131 DIODED710 1SV286F VARIABLE CAPACITANCE DIODED711 HVC131 DIODE

D901 1SR154-400 DIODED902 HSC119 DIODE

IC404 TC75W51FUF MOS-ICIC500 ∗ LM73CIMKX-0 MOS-ICIC501 LMC7101BIM5 MOS-ICIC502 Note 1 MOS-ICIC503 LMC7101BIM5 MOS-IC

IC504 TC75W51FUF MOS-ICIC600 TA75W01FUF MOS-ICIC700 ∗ MCP6021-E/OT MOS-ICIC701 TK10931VTL-G ANALOGUE ICIC702,703 LMC7101BIM5 MOS-IC

IC900 TC75S51FE(F) MOS-IC

Note 1 : This part cannot be replaced. Therefore, this part is not supplied as a service part.

NX-300PARTS LIST



TX-RX UNIT (X57-7370-10)

27

IC901 XC9101D09AKR ANALOGUE ICIC902 TK11250CUCB MOS-ICIC903 ∗ TK71733S BI-POLAR IC

Q503 2SC5383-T111 TRANSISTORQ504 ∗ 2SK879-F(Y) FETQ505 2SC5636 TRANSISTORQ507 2SC5383-T111 TRANSISTORQ508,509 2SK508NV(K52) FET

Q510 SSM6L05FU-F FETQ511 2SJ347F FETQ512 2SC5636 TRANSISTORQ600,601 2SC5636 TRANSISTORQ602 2SK3077F FET

Q603 RD01MUS1-T113 FETQ604 2SC5383-T111 TRANSISTORQ605 SSM3K15TE(F) FETQ606 RD07MVS1BT122 FETQ607 DTC144EE DIGITAL TRANSISTOR

Q608 2SK1824-A FETQ610 ∗ EMD5 TRANSISTORQ700 2SC5108(Y)F TRANSISTORQ701 2SC4215-F(Y) TRANSISTORQ703 3SK318 FET

Q704 2SC5383-T111 TRANSISTORQ705 3SK318 FETQ706 2SK1830F FETQ900 UMG9N TRANSISTORQ901-903 SSM6L05FU-F FET

Q904 ∗ SSM5H01TU-F FETQ905 2SA1955A-F TRANSISTOR

TH600 ERTJ0EV104H THERMISTOR

28

NX-300

A B

1

2

3

TX-RX unit(X57 A/2)

1

3738

67

70

50

69

53

48

43

39

39

49

F

F

47

1221

H

HD

D

E

E

H

Hx8

Hx2H

H

5859

44

5714

68

64

31

5226

1915 54

30

45

205

Hx2

Hx2

Hx2

440

602

9

54

8

6

54

29

65

23

66

7

25

42

21

3

34

16

17

18

36 56

35

BE

C

C

E

41

54

6110

A

Control unit(X53)

Option boardunit (X57 B/2)

707

33

705

706 54

709

708707

72

704

700

55

27

703

702

701

54

24

S1

VR1

EXPLODED VIEW

Parts with the exploded numbers larger than 700 are not supplied.

If a part reference number is listed in a box on the exploded view of the PCB, that part does not come with the PCB. These parts must be ordered separately.

A :N08-0564-04B :N09-2426-14C :N09-2440-15D :N09-6549-04E :N09-6554-05

F :N14-0844-04G :N30-3008-60H :N83-2005-48

29

NX-300PACKING

C D

1

2

3

Parts with the exploded numbers larger than 700 are not supplied.

11. INSTRUCTION MANUAL(B62-2014-00) 712

711

713

711

46. BELT CLIP(J29-0730-05)

G. PAN HEAD MACHINE SCREW(N30-3008-60)x2

4. CAP(B09-0712-03)

40. PACKING(CAP)(G11-1769-04)

A. DRESSED SCREW(N08-0564-04)

NX-300ADJUSTMENT

30

Fault diagnosis of the BGA IC

Overview: A flowchart for determining whether or not the transceiver can be powered on (the LCD does not function even if thepower switch is turned on) due to broken BGA parts.

BGA parts• ASIC (IC108)• DSP (IC102)• FLASH (IC101)• SRAM (IC103)

Checking power supply voltage

Checking voltage

Points to be checked Normal voltage33M IC404 (5 pin) 3.3V15M IC405 (5 pin) 1.5V33A IC406 (5 pin) 3.3V31BU IC416 (3 pin) 3.1V

Power supply of each device is connected through the coil.[ASIC]33M:L714 15M:L715 33A:L716[DSP]33M:L712 15M:L711[FLASH]33M:L717[SRAM]31BU:L710

Checking the clock

Checking the clock

Points to be checked Normal voltage (3.3V)18.432MHz ASIC side R158 18.432MHz

DSP side R159 18.432MHz32.768kHz IC106(1 pin) 32.768kHz

When a normal valueis confirmed.

Checking the Reset/Control signal

Checking the control signal input to the ASIC

Points to be checked Normal voltageRESET IC105 (4 pin) 3.3V/BINT Q401 (6 pin) 3.3V/PSW Q402 (3 pin) 3.3V

Checking the control signal output from the ASIC

Points to be checked Normal voltage/FRST C110 3.3V

The BGA parts are not broken.

If the /FRST is always 0V, the ASIC is broken.

If the /FRST repeats 3.3V and 0V at intervals, the ASIC, FLASH and SRAM may be broken.

Checking an abnormal point

33M has an abnormal voltage.[ASIC]Remove L714 to check the voltage of the 33M.If the voltage becomes normal, the ASIC is broken.[DSP]Remove L712 to check the voltage of the 33M.If the voltage becomes normal, the DSP is broken.[FLASH]Remove L717 to check the voltage of the 33M.If the voltage becomes normal, the FLASH is broken.

15M has an abnormal voltage.[ASIC]Remove L715 to check the voltage of the 15M.If the voltage becomes normal, the ASIC is broken.[DSP]Remove L711 to check the voltage of the 15M.If the voltage becomes normal, the DSP is broken.

33A has an abnormal voltage.[ASIC]Remove L716 to check the voltage of the 33A.If the voltage becomes normal, the ASIC is broken.

31BU has an abnormal voltage.[SRAM]Remove L710 to check the voltage of the 31BU.If the voltage becomes normal, the SRAM is broken.

If the voltage is not corrected, there is a problem other than the BGA parts.

When an abnormal value is confirmed.







NX-300ADJUSTMENT

31

When an error display appears on the LCD.

The LCD displays "INIT ERROR1". An error occurs when the ASIC internal RAM readsor writes. The ASIC may be broken.

The LCD displays "INIT ERROR2". An error occurs when the DSP internal RAM readsor writes. The DSP may be broken.

The LCD displays "INIT ERROR3". An error occurs when the SRAM internal RAM reads or writes. The SRAM may be broken.

* Descriptions of signal names1) RST(RESET) : ASIC reset signal LOW → Reset2) /BINT : Battery final voltage monitoring LOW → Final voltage3) /PSW : Power switch signal LOW → ON4) /FRST : FLASH reset signal LOW → Reset5) SBC : Switch B control HIGH → ON6) /DRST : DSP reset signal LOW → Reset7) /LCDRST : LCD reset signal LOW → Reset8) /CS4 : LCD controller chip select signal LOW → Active9) 5A : Analog peripheral control 5.0V power supply

Checking the output signal from the ASIC

Points to be checked Normal voltageSBC R432 3.3V

The LCD displays control

It is unlikely that the BGA parts are broken.

Points to be checked Normal voltage/LCDRST R406 3.3V

Points to be checked Normal voltage/DRST C109 3.3V

Points to be checked Normal voltage/CS4 IC402 (7 pin) 3.3V→0V→3.3V

Points to be checked Normal voltage5A IC708 (5 pin) 5.0V If 5A is 0V, parts other than the BGA are broken.

If the /CS4 is 0V or 3.3V, the ASIC/FALSH/SRAM may be broken.

Remove R406. If the ASIC side is 0V, the ASIC/FALSH/SRAM may be broken.

If the /DRST is 0V, the ASIC/FALSH/SRAM are broken.

Remove R432. If the ASIC side is 0V, the ASIC/FALSH/SRAM may be broken.












NX-300ADJUSTMENT

32

Controls

Panel Test Mode

Test mode operation featuresThis transceiver has a test mode. To enter test mode,

press and hold the [ ] key while turning the transceiver

power ON. Before the transceiver enters test mode, the

frequency version information appears on the LCD mo-

mentarily. Test mode can be inhibited by programming. Toexit test mode, turn the transceiver power OFF. The follow-ing functions are available in test mode.

Key operation

Key“FNC” not appears on the sub LCD display

Function Display

[Selector] - -

Push: Test channel up[ ] Hold: Test channel up Channel No.

continuously

Push: Test channel down[ ] Hold: Test channel down Channel No.

continuously

[Side1]Push: Squelch level up Squelch levelHold: Squelch off Squelch off: icon appears

Wide : “w”[Side2] Wide/Narrow/Very narrow Narrow : “n”

Very narrow : “v”

[ ] Shift to panel tuning mode -

[ ] Function on“FNC” appears on thesub LCD display

[ ] MSK 1200bps and 2400bps 2400bps : icon appears

Push: Test signaling up[ ] Hold: Test signaling up Signaling No.

continuously

[Orange] - -

[PTT] Transmit -

Use as the DTMF keypad.[0] to [9] If a key is pressed duringand transmission, the DTMF -[#], [*] corresponding to the key

that was presses is sent.

Key“FNC” appears on the sub LCD display

Function Display

[Selector] - -

[ ] Function off -

[ ] Analog/NXDNAnalog: “A”NXDN: “N”

[Side1] Function off -

[Side2] LCD all lights LCD all point appears

[ ] High power/Low powerHigh: “H”Low: “L”

[ ] Function off -

[ ] Compander on/off On: icon appears

[ ] Beat shift on/off On: icon appears

[Orange] Function off -

[PTT] Transmit -

[0] to [9]and Function off -[#], [*]

• LED indicatorRed LED Lights during transmission.Green LED Lights when there is carrier.

• Sub LCD indicator“FNC” Appears at function on.

• LCD display in panel test mode

12 ABC

5 JKL

0

8 TUV

4

7

GHI

PQRS

3 DEF

6 MNO

MIC

#

9 WXYZ

PTT switchUniversalconnector

Power switch / Volume

Selector

Orange key

Side1 keySide2 key

An SQ5 1- 1

Channel No.

An : Analog narrow modeAw : Analog wide modeNn : NXDN narrow modeNv : NXDN very narrow mode

Sub LCDdisplay

+25

Signaling No.

Squelch level(Analog mode only)

Temperature

NX-300ADJUSTMENT

33

Frequency and SignalingThe transceiver has been adjusted for the frequencies

shown in the following table. When required, readjust themfollowing the adjustment procedure to obtain the frequenciesyou want in actual operation.

• Test frequency

CH RX (MHz) TX (MHz)

1 485.05000 485.10000

2 450.05000 450.10000

3 519.95000 519.90000

4 485.00000 485.00000

5 485.20000 485.20000

6 485.40000 485.40000

7~16 - -

• Analog mode signaling

No. RX TX

1 None None

2 None 100Hz Square Wave

3 LTR Data : LTR Data :AREA=0, GOTO=12 AREA=0, GOTO=12HOME=12 HOME=12ID=47, FREE=25 ID=47, FREE=25

4 QT : 67.0Hz QT : 67.0Hz

5 QT : 151.4Hz QT : 151.4Hz

6 QT : 210.7Hz QT : 210.7Hz

7 QT : 254.1Hz QT : 254.1Hz

8 DQT : D023N DQT : D023N

9 DQT : D754I DQT : D754I

10 DTMF : 159D DTMF : 159D

11 None DTMF Code 9

12 2-tone : 2-tone :A : 304.7Hz A : 304.7HzB : 3106.0Hz B : 3106.0Hz

13 Single Tone : 979.9Hz Single Tone : 979.9Hz

14 None Single Tone : 1000Hz

15 None MSK

16 MSK MSK

• NXDN mode signaling

No. RX TX

1 RAN1 RAN1

2 None PN9

3 RAN1 Maximum deviation pattern

Panel Tuning Mode

Preparations for tuning the transceiverBefore attempting to tune the transceiver, connect the

unit to a suitable power supply.Whenever the transmitter is turned, the unit must be con-

nected to a suitable dummy load (i.e. power meter).The speaker output connector must be terminated with a

8Ω dummy load and connected to an AC voltmeter and anaudio distortion meter or a SINAD measurement meter at alltimes during tuning.

Transceiver tuning (To enter tuning mode)To enter tuning mode, press the [ ] key while the trans-

ceiver is in test mode. Use the [ ] key to write tuning datathrough tuning modes, and the [ ]/[ ] key to adjust tun-ing requirements (1 to 4096 appears on the LCD).

Use the [ ] key to select the adjustment item throughtuning modes. Use the [ ] key to adjust 5 reference leveladjustments, and use the [Side2] key to switch betweenWide/Narrow/Very narrow.

• LCD display in panel tuning mode

An CNTR 256

Proper value guide(Frequency adjust only)

Adjustment pointLL'CH'H

2.6

Adjustment value(1~4096)

Adjustment item

CV voltage, AD value, etc

NX-300ADJUSTMENT

34

Key operation

KeyFunction

Push Hold (1 second)

[Selector] -

[ ] Adjustment value up Continuation up

[ ] Adjustment value down Continuation down

[Side1] Auto adjustment start -

[Side2] Wide/Narrow/Very narrow -

[ ] Shift to panel test mode -

[ ]To enter 5 reference level

-adjustments

[ ] Writes the adjustment value -

[ ] Go to next adjustment item Back to last adjustment item

[Orange] -

[PTT] Transmit

[0] to [9]and -[#], [*]

5 reference level adjustments frequency

Tuning point RX (MHz) TX (MHz)

Low 450.05000 450.10000

Low’ 467.55000 467.60000

Center 485.05000 485.10000

High’ 502.55000 502.60000

High 519.95000 519.90000

Adjustment item and Display

Order Adjustment item Main LCD display Sub LCD displayAw An Nn Nv

Adjustment range

1 LCD Contrast CNTR -1 point ADJ

1~256

2Volume 1

VOL1 (VOL measurement value)1 point ADJ

(Counterclockwise Max) 1~256

3Volume 2

VOL2 (VOL measurement value)1 point ADJ

(Clockwise Max) 1~256

4 RX Assist RAST (CV voltage)5 point ADJ

1~4096

5 TX Assist TAST (CV voltage)5 point ADJ

1~4096

6 RTC RTC -1 point ADJ

-62~-1/0/+1~+62

7 High Power HIPWR -- 5 - -

1~1024

8 Low Power LOPWR -- 5 - -

1~1024

9 Balance BAL (Encode frequency)- 5 - -

1~256

10 NXDN Deviation NDEV -- - 5 5

1~1024

11Analog Max

ADEV -5 5 - -

Deviation 1~1024

NX-300ADJUSTMENT

35

Order Adjustment item Main LCD display Sub LCD displayAw An Nn Nv

Adjustment range

12 QT Deviation QT -1 1 - -

1~1024

13 DQT Deviation DQT -1 1 - -

1~1024

14 LTR Deviation LTR -1 1 - -

1~1024

15 DTMF Deviation DTMF -1 1 - -

1~1024

16Single Tone

TONE -1 1 - -

Deviation 1~1024

17 MSK Deviation MSK -1 1 - -

1~1024

18 CW ID Deviation CWID -- - - 1

1~1024

19 VOX 1 VOX1 (VOX measurement value)1 point ADJ

1~256

20 VOX 10 VOX10 (VOX measurement value)1 point ADJ

1~256

21 Sensitivity 1 SENS1 (RSSI measurement value)- 5 - -

1~256

22 Sensitivity 2 SENS2 (RSSI measurement value)- 5 - -

1~256

23 RSSI (Reference) RRSSI (RSSI measurement value)5 5 - *1 5

1~256

24 Squelch Open SQL (ASQDET measurement value)5 5 - *1 5

1~256

25 Low RSSI LRSSI (RSSI measurement value)5 5 - *1 5

1~256

26 High RSSI HRSSI (RSSI measurement value)5 5 - *1 5

1~256

27 Squelch Tight SQLT (ASQDET measurement value)5 5 - -

1~256

28Battety Warning

BATT (BATT measurement value)1 point ADJ

Level 1~256

*1: The adjustment of NXDN Narrow is common with the adjustment of Analog Narrow.

NX-300ADJUSTMENT

36

Panel tuning mode flow chart

LCD ContrastCNTR

5 reference levelAdjustments

Adjustment ItemLCD Display N/W/VN

For all adjustment items, press the [ ] key to write the adjustment value.


5 reference levelAdjustments exit


[Side2]



Volume 1(CCW Max)VOL1

Volume 2(CW Max)VOL2

RX AssistRAST

TX AssistTAST

RTCRTC

High PowerHIPWR

LowL

Adjustment PointLCD Display

Low-CenterL'

CenterC

Center-HighH'

HighH

Low PowerLOPWR

BalanceBAL


Sensitivity 1SENS1

NXDN DeviationNDEV Narrow Very

Narrow


Analog Max DeviationADEV Narrow Wide

QT DeviationQT Narrow Wide

DQT DeviationDQT Narrow Wide

LTR DeviationLTR

NXDN DeviationNDEV

Analog Max DeviationADEV

QT DeviationQT

DQT DeviationDQT

LTR DeviationLTRNarrow Wide

DTMF DeviationDTMF Narrow Wide

Single Tone Deviation TONE Narrow Wide

MSK DeviationMSK

DTMF DeviationDTMF

Single Tone Deviation TONE

MSK DeviationMSKNarrow

Narrow


Sensitivity 2SENS2 Narrow

CW ID DeviationCWID

VeryNarrow

VOX Level 1VOX1

VOX Level 10VOX10

Wide


RSSI(Reference)RRSSI Narrow Wide Very

Narrow


Squelch(Open)SQL Narrow Wide Very

Narrow


RSSI(Low)LRSSI

RSSI(Reference)RRSSI

Squelch(Open)SQL

RSSI(Low)LRSSI

RSSI(Reference)RRSSI

Squelch(Open)SQL

RSSI(Low)LRSSINarrow Wide Very

Narrow


RSSI(High)HRSSI

RSSI(High)HRSSI

RSSI(High)HRSSINarrow Wide Very

Narrow


Squelch(Tight)SQLT

Squelch(Tight)SQLTNarrow

Battery Warning LevelBATT

Wide

Panel Test Mode

[ ]

[ ]

[ ]

[ ]

[ ][ ]

[ ]

[ ]

[ ]

[ ]

[ ]

[ ] [ ][ ]

[ ]

[ ]

[ ]

[ ]

[ ]

[ ]

[ ]

[ ]

[ ]

[ ]

[ ]

[ ]

[ ]

[ ]

[ ]

[ ]

[ ]

[ ]press [ ]hold

[ ]hold

[ ]press [ ]hold

[ ]press [ ]hold

[ ]press [ ]hold

[ ]press [ ]hold

[ ]press [ ]hold

[ ]press [ ]hold

[ ]press [ ]hold

[ ]press [ ]hold

[ ]press [ ]hold

[ ]press [ ]hold

[ ]press [ ]hold

[ ]press [ ]hold

[ ]press [ ]hold

[ ]press [ ]hold

[ ]press [ ]hold

[ ]press [ ]hold

[ ]press [ ]hold

[ ]press [ ]hold

[ ]press [ ]hold

[ ]press

[ ]press

[ ]hold

[ ]press [ ]hold

[ ]press [ ]hold

[ ]press [ ]hold

[ ]press [ ]hold

[ ]press [ ]hold

[ ]press [ ]hold

[ ]


[ ]


[ ]

Narrow

Narrow

Narrow

[ ]

[Side2]

[Side2]

[Side2]

[Side2]

[Side2]

[Side2]

[Side2]

[Side2]

[Side2]

[Side2]

[Side2]

[Side2]

[Side2]

[Side2]

[Side2]

[Side2]

[Side2]

[Side2]

[Side2]

[Side2]

[ ]

NX-300ADJUSTMENT

37

Test Equipment Required for Alignment

Test Equipment Major Specifications

1. Standard Signal Generator Frequency Range 400 to 520MHz(SSG) Modulation Frequency modulation and external modulation

Output -127dBm/0.1µV to greater than -20dBm/22.4mV* When performing the Frequency adjustment, the following accuracy is necessary. • 0.001ppmUse a standard oscillator for adjustments, if necessary.

2. Power Meter Input Impedance 50ΩOperation Frequency 400 to 520MHzMeasurement Range Vicinity of 10W

3. Deviation Meter Frequency Range 400 to 520MHz4. Digital Volt Meter Measuring Range 10mV to 10V DC

(DVM) Input Impedance High input impedance for minimum circuit loading5. Oscilloscope DC through 30MHz6. High Sensitivity Frequency Range 10Hz to 1000MHz

Frequency Counter Frequency Stability 0.2ppm or less7. Ammeter 5A8. AF Volt Meter Frequency Range 50Hz to 10kHz

(AF VTVM) Voltage Range 1mV to 10V9. Audio Generator (AG) Frequency Range 50Hz to 5kHz or more

Output 0 to 1V10. Distortion Meter Capability 3% or less at 1kHz

Input Level 50mV to 10Vrms11. 8Ω Dummy Load Approx. 8Ω, 3W12. Regulated Power Supply 5V to 10V, approx. 3A

Useful if ammeter equipped

Connect the power cable properly between the battery jiginstalled in the transceiver and the power supply, and be sureoutput voltage and the power supply polarity prior to switchingthe power supply ON, otherwise over voltage and reverseconnection may damage the transceiver, or the power supplyor both.

Note: When using the battery jig, you must measure thevoltage at the terminals of the battery jig. Otherwise, a slightvoltage drop may occur within the power cable, between thepower supply and the battery jig, especially while thetransceiver transmits.

The following parts are required for adjustment

1. Antenna connector adapterThe antenna connector of this transceiver uses an SMA

terminal.Use an antenna connector adapter [SMA(f) – BNC(f) or

SMA(f) – N(f)] for adjustment. (The adapter is not provided asan option, so buy a commercially-available one.)

2. Nut wrench

In order to turn the volume nut and the channel selectornut, use a recommendation tool.

KENWOOD part No. : W05-1123-00

3. Battery Jig (W05-1370-00)

+ Terminal (Red)

- Terminal (Black)

+ Terminal(Red)

– Terminal(Black)

C3

100µ

/25V

C2

470P

/25V

C1

100P

/25V

R1

1.8M

–

S

+

Powersupply

Power cable

SCHEMATIC DIAGRAM

NX-300ADJUSTMENT

38

11 : GREEN (5M)

TUBE

SCREW

8 : YELLOW (PF SW)

2 : RED (RX AF OUTPUT)

3 : BLACK (RX AF OUTPUT)

10 : BROWN (GND)

6 : BROWN (MIC GND)

5 : WHITE (MIC INPUT)

7 : BLUE (PTT SW) GND → ON

RED (2)

BLK (3)

100µ 10V

100µ 10V

8Ω

WHT(5)

BRN (6)

BLU (7)

BRN (10)

PTT SW

+

+

+

To transceiver

AF Voltmeter

Audio generator10µ 10V

4. Universal connectorUse the interface cable (KPG-36/36A) for PC tuning or the

lead wire with plug (E30-3287-18) and screw (N08-0535-08)for panel tuning. Connect the plug to the universal connectorof the transceiver and tighten the screw.

The lead wire with plug (E30-3287-18) and screw (N08-0535-08) terminals are as follows. Numbers are universalconnector terminal numbers.

Caution1. When connecting the plug to the universal connector of

the transceiver, a short circuit may occur. To prevent this,be sure to turn the transceiver POWER switch off.

2. Since the RX AF output is a BTL output, there is a DCcomponent. Isolate this with a capacitor or transformer asshown in the figure.

3. Do not connect an instrument between red or black and GND.

• Universal connector

• Panel tuning

1 : SSW

3 : SP–

5 : EMC

7 : PTT

9 : OPT

11 : 5V

13 : RXD

2 : SP+

4 : MSW

6 : ME

8 : PF

10 : E

12 : TXD

14 : NC

• PC tuning

Connect the wires to the PCB in the connector case ofinterface cable.

For output the wires out of the connector case, need toprocess the connector case.

Connector case

KPG-36/36A

Remove thescrew

PCB layout

Shield

AF voltmeter

Audio generator

100µ 10V

100µ 10V

10µ 10V

+

+

+

8Ω

NX-300

Item

Condition Measurement Adjustment

Specifications/

RemarksTest-

equipment Unit Terminal PartsUnit MethodPC test modePanel test mode

ADJUSTMENT

39

1. Frequencycheck

2. High powercheck

3. Low powercheck

4. MICsensitivitycheck

Radio Check Section

1) CH-Sig : 1-1PTT : ON







1) CH-Sig : 1-1AG : 1kHzPTT : ON

1) Test ChannelChannel : 1

Test SignalingMode : AnalogSignaling : 1

PTT : Press [Transmit]button.1) Test Channel

Channel : 1Test SignalingMode : AnalogSignaling : 1













AG : 1kHzPTT : Press [Transmit]button.

f. counter

PowermeterAmmeter

DeviationmeterOscilloscopeAGAF VTVM

Panel

Panel

ANT

ANTUniversalconnector

Check an internaltemperature of radiowithin 25˚C ± 2˚C.

Check

Adjust AG input toget a standard MOD.

+0.05/[email protected]

4.5W~5.5W2.3A or less

0.7W~1.4W1.4A or less

12.5mV±5.8mVNote: The SSWterminal (pin 1) ofthe universalconnector mustbe connected toGND whenchecking MICsensitivity.

NX-300

Item


Specifications/

RemarksTest-

equipment Unit Terminal PartsUnit MethodPC test modePanel test mode

ADJUSTMENT

40

5. Sensitivitycheck

1) CH-Sig : 1-1SSG outputWide: –117dBm(0.32µV)(MOD : 1kHz/±3kHz)Narrow: –117dBm(0.32µV)(MOD : 1kHz/±1.5kHz)



SSG outputWide: –117dBm(0.32µV)(MOD : 1kHz/±3kHz)Narrow : –117dBm(0.32µV)(MOD : 1kHz/±1.5kHz)

SSGAF VTVMOscilloscope

Panel ANTUniversalconnector

Check 12dB SINAD ormore

Common Section

Item


Specifications/

RemarksTest-

equipment Unit Terminal PartsUnit MethodPC test modePanel tuning mode

1. Setting

2. LCD contrast

3. Volumecounter-clockwise

4. Volumeclockwise

1) BATT terminal voltage:7.5V2) SSG standard modulation[Wide] MOD:1kHz,DEV:3kHz[Narrow] MOD:1kHz,DEV:1.5kHz

Panel Adjust the LCDcontrast by looking.

[Panel tuning mode]Turn the volume knobcounterclockwise fully.Press [ ] key to storethe adjustment value.

[PC test mode]Turn the volume knobcounterclockwise fully.Press [Apply] button tostore the adjustmentvalue.[Panel tuning mode]Turn the volume knobclockwise fully. Press[ ] key to store theadjustment value.

[PC test mode]Turn the volumeknob clockwisefully. Press [Apply]button to store theadjustment value.

This item isneeded when theLCD ASSY (B38-0923-05) isreplaced.

This item isneeded when thevariable resistor(R31-0666-05) isreplaced.

[Paneltuningmode][ ],[ ]

[PC testmode][ ],[ ]

1) Adj item:[CNTR]Adjust:[***]

Press [ ] key to storethe adjustment value.

1) Adj item:[VOL1]Adjust:[***]

1) Adj item:[VOL2]Adjust:[***]

1) Adj item:[LCD Contrast]Press [Apply] buttonto store theadjustment value.

1) Adj item:[CounterclockwiseVolume]

1) Adj item:[Clockwise Volume]

NX-300

Item


Specifications/

RemarksTest-


ADJUSTMENT

41

5. Assistvoltage[RX]

[TX]

6. RTCoscillationfrequencyadjust

7. Frequencyadjust

SSG Panel ANT

Panel The sub LCD displayand [V] indicator onthe PC windowshows VCO lockvoltage. Change theadjustment value toget VCO lock voltagewithin the limit of thespecified voltage.

Note:Confirm the VCOlock voltageapproximately 3seconds after theadjustment value ischanged.

[Panel tuning mode]Press [Side1] key.After automaticadjustment adjustedvalue is displayed onLCD.Press [ ] key to storethe adjustment value.

[PC test mode]Press [Start] button of“Auto Tuning”. Press[Apply] button to storethe adjustment valueafter the automaticadjustment wasfinished.[PC test mode]Press [Start] button of“Auto Tuning”. Press[Apply] button to storethe adjustment valueafter the automaticadjustment wasfinished.

2.5V±0.1V

[PC test mode]Press [Apply All]button to store theadjustment valueafter alladjustment pointwas adjusted.

[PC test mode]The value of“IF20” willbecome around“0” after theadjustment wasfinished.



[Side1]

1) Adj item:[RAST]Adjust:[****]

2) Adj item:[L RAST]→[L’ RAST]→[C RAST]→[H’ RAST]→[H RAST]Adjust:[****]Press [ ] key to storethe adjustment value.

1) Adj item:[TAST]Adjust:[ ****]2) Adj item:[L TAST]→[L’ TAST]→[C TAST]→[H’ TAST]→[H TAST]Adjust:[****]PTT : ON (RF poweris not output.)Press [ ] key to storethe adjustment value.

1) Adj item:[RTC]Adjust:[***]

* The Frequencyadjustment can beperformed only inPC test mode.

1) Adj item:[ReceiveAssist]

2) Adj item:[Low][Low’][Center][High’][High]

Press [Apply All] button tostore the adjustment value.1) Adj item:[Transmit

Assist]2) Adj item:[Low]

[Low’][Center][High’][High]

PTT: Press [Transmit]button.Press [Apply All] button tostore the adjustment value.1) Adj item:[RTC(Real-time clock)]

1) Adj item:[Frequency]SSG output : -20dBm(22.4mV)

(CW (withoutmodulation))Caution:

Perform the frequencyadjustment under thefollowing conditions.

• Temperature rangeof +23˚C to +27˚C(+73.4˚F to +80.6˚F).(The temperature isdisplayed on theFrequency adjustmentscreen of the KPG-111D and the LCDof the transceiver.)

• Use an accuracy of0.001ppm for theSSG. (Use a standardoscillator if necessary.)

NX-300

Item


Specifications/

RemarksTest-


ADJUSTMENT

42

1. High poweradjust

2. Low poweradjust

3. Balanceadjust *2

1) Adj item:[HIPWR]Adjust:[****]

2) Adj item:[L HIPWR]→[L’ HIPWR]→[C HIPWR]→[H’ HIPWR]→[H HIPWR]Adjust:[****]PTT : ONPress [ ] key to storethe adjustment value.1) Adj item:[LOPWR]

Adjust:[****]2) Adj item:[L LOPWR]→[L’ LOPWR]→[C LOPWR]→[H’ LOPWR]→[H LOPWR]Adjust:[****]PTT : ONPress [ ] key to storethe adjustment value.1) Adj item:[BAL]

Adjust:[***]Deviation meter LPF : 3kHz HPF : OFF

2) Adj item:[L BAL]→[L’ BAL]→[C BAL]→[H’ BAL]→[H BAL]Adjust:[***]PTT : ONPress [ ] key to storethe adjustment value.

1) Adj item: [HighTransmit Power]


PTT : Press [Transmit]button.Press [Apply All] button tostore the adjustment value.

1) Adj item:[Low Transmit Power]2) Adj item:[Low]



1) Adj item:[Balance]Deviation meter LPF : 3kHz HPF : OFF



PowermeterAmmeter

DeviationmeterOscilloscope

Panel ANT Panel 5.0W

0.8W

The sub LCD displayshows the single tonefrequency that DSPgenerates. The tonefrequency is alternatelyswitched to 20Hz and2kHz by pressing[Side1] key on thefront panel or checking[2000Hz Sine Wave]check box on the PCwindow whiletransmitting. Changethe adjustment valueto get same deviationat 20Hz and 2kHzwithin the limit of thespecified voltage.

±0.2W2.3A or less

[PC test mode] Press [Apply All]button to store theadjustment valueafter alladjustment pointwas adjusted.

±0.1W1.2A or less


2kHz Tonedeviation is within±1.0% of 20Hztone deviation.




Transmitter Section

*2: Refer to the “Mode, Signaling, Necessary adjustment and order” table on page 46.

NX-300

Item


Specifications/

RemarksTest-


ADJUSTMENT

43

4. NXDNDeviationadjust *2

[Narrow]

[Very Narrow]

5. AnalogDeviationadjust *2

[Narrow]

[Wide]


Panel ANT Panel 3056Hz

1337Hz

Write the sameadjustment value of“NXDN Deviation[Narrow]” for eachadjustment point.Transmit at eachadjustment point andcheck that the Analogdeviation is between2050Hz and 2150Hz.Deviation meter

LPF: 15kHzHPF: OFF

[Panel tuning mode]PTT: ON[PC test mode]PTT: Press[Transmit] buttonWrite the sameadjustment value of“NXDN Deviation[Narrow]” for eachadjustment point.Transmit at eachadjustment point andcheck that the Analogdeviation is between4150Hz and 4250Hz.Deviation meter

LPF: 15kHzHPF: OFF

[Panel tuning mode]PTT: ON[PC test mode]PTT: Press[Transmit] button

2995~3117Hz

[PC test mode]Press [Apply All]button to store theadjustment valueafter alladjustment pointwas adjusted.

1311~1363Hz


2050~2150Hz


4150~4250Hz




1) Adj item:[Nn NDEV]Adjust:[****]Deviation meter LPF : 3kHz HPF : OFF

2) Adj item:[NnL NDEV]→[NnL’ NDEV]→[NnC NDEV]→[NnH’ NDEV]→[NnH NDEV]Adjust:[****]PTT : ONPress [ ] key to storethe adjustment value.1) Adj item:[Nv NDEV]

Adjust:[****]2) Adj item:[NvL NDEV]→[NvL’ NDEV]→[NvC NDEV]→[NvH’ NDEV]→[NvH NDEV]Adjust:[****]PTT : ONPress [ ] key to storethe adjustment value.1) Adj item:[An ADEV]

Adjust:[****]2) Adj item:[AnL ADEV]→[AnL’ ADEV]→[AnC ADEV]→[AnH’ ADEV]→[AnH ADEV]Adjust:[****]Press [ ] key to storethe adjustment value.

1) Adj item:[Aw ADEV]Adjust:[****]

2) Adj item:[AwL ADEV]→[AwL’ ADEV]→[AwC ADEV]→[AwH’ ADEV]→[AwH ADEV]Adjust:[****]Press [ ] key to storethe adjustment value.

1) Adj item:[ MaximumDeviation(NXDNNarrow)]Deviation meter LPF : 3kHz HPF : OFF


PTT : Press [Transmit]button.Press [Apply All] button tostore the adjustment value.1) Adj item:[ Maximum

Deviation(NXDNVery Narrow)]


PTT : Press [Transmit]button.Press [Apply All] button tostore the adjustment value.1) Adj item:[ Maximum

Deviation(AnalogNarrow)]


Press [Apply All] button tostore the adjustment value.

1) Adj item:[ MaximumDeviation(AnalogWide)]




NX-300

Item


Specifications/

RemarksTest-


ADJUSTMENT

44

6. QT Deviationadjust *2

[Narrow]

[Wide]

7. DQTDeviationadjust *2

[Narrow]

[Wide]

8. LTRDeviationadjust *2

[Narrow]

[Wide]

1) Adj item:[An QT]Adjust:[****]Deviation meter LPF : 3kHz HPF : OFF

PTT : ONPress [ ] key to storethe adjustment value.

1) Adj item:[Aw QT]Adjust:[****]


1) Adj item:[An DQT]Adjust:[****]Deviation meter LPF : 3kHz HPF : OFF


1) Adj item:[Aw DQT]Adjust:[****]


1) Adj item:[An LTR]Adjust:[****]Deviation meter LPF : 3kHz HPF : OFF


1) Adj item:[Aw LTR]Adjust:[****]


1) Adj item:[QT Deviation(Analog Narrow)]Deviation meter LPF : 3kHz HPF : OFF

PTT : Press [Transmit]button.Press [Apply] button tostore the adjustment value.1) Adj item:[QT Deviation

(Analog Wide)]PTT : Press [Transmit]button.Press [Apply] button tostore the adjustment value.1) Adj item:[DQT

Deviation (AnalogNarrow)]Deviation meter LPF : 3kHz HPF : OFF

PTT : Press [Transmit]button.Press [Apply] button tostore the adjustment value.1) Adj item:[DQT

Deviation (AnalogWide)]

PTT : Press [Transmit]button.Press [Apply] button tostore the adjustment value.1) Adj item:[LTR


PTT : Press [Transmit]button.Press [Apply] button tostore the adjustment value.1) Adj item:[LTR


PTT : Press [Transmit]button.Press [Apply] button tostore the adjustment value.


Panel ANT Panel Write the value asfollowings.513 (Referencevalue)

Write the value asfollowings.415 (Referencevalue)


0.35kHz±0.05kHz

0.75kHz±0.05kHz

0.35kHz±0.05kHz

0.75kHz±0.05kHz

0.75kHz±0.05kHz

1.00kHz±0.05kHz




NX-300

Item


Specifications/

RemarksTest-


ADJUSTMENT

45

9. DTMFDeviationadjust *2

[Narrow]

[Wide]

10.TONEDeviationadjust *2

[Narrow]

[Wide]

11.MSKDeviationadjust *2

[Narrow]

[Wide]

12.CWIDDeviationadjust *2

[Very Narrow]


Panel ANT Panel Write the value asfollowings.540 (Referencevalue)




1.25kHz±0.05kHz

2.50kHz±0.05kHz

1.50kHz±0.05kHz

3.00kHz±0.05kHz

1.50kHz±0.05kHz

3.00kHz±0.05kHz

1.00kHz±0.10kHz



1) Adj item:[An DTMF]Adjust:[****]Deviation meter LPF : 15kHz HPF : OFF


1) Adj item:[Aw DTMF]Adjust:[****]


1) Adj item:[An TONE]Adjust:[****]Deviation meter LPF : 15kHz HPF : OFF


1) Adj item:[Aw TONE]Adjust:[****]


1) Adj item:[An MSK]Adjust:[****]Deviation meter LPF : 15kHz HPF : OFF


1) Adj item:[Aw MSK]Adjust:[****]


1) Adj item:[Nv CWID]Adjust:[****]Deviation meter LPF : 15kHz HPF : OFF


1) Adj item:[DTMFDeviation (AnalogNarrow)]Deviation meter LPF : 15kHz HPF : OFF

PTT : Press [Transmit]button.Press [Apply] button tostore the adjustment value.1) Adj item:[DTMF


PTT : Press [Transmit]button.Press [Apply] button tostore the adjustment value.1) Adj item:[Single

Tone Deviation(Analog Narrow)]Deviation meter LPF : 15kHz HPF : OFF

PTT : Press [Transmit]button.Press [Apply] button tostore the adjustment value.1) Adj item:[Single

Tone Deviation(Analog Wide)]

PTT : Press [Transmit]button.Press [Apply] button tostore the adjustment value.1) Adj item:[MSK


PTT : Press [Transmit]button.Press [Apply] button tostore the adjustment value.1) Adj item:[MSK


PTT : Press [Transmit]button.Press [Apply] button tostore the adjustment value.1) Adj item:[CW ID

Deviation (NXDNVery Narrow)]Deviation meter LPF : 15kHz HPF : OFF

PTT : Press [Transmit]button.Press [Apply] button tostore the adjustment value.


NX-300

Item


Specifications/

RemarksTest-


ADJUSTMENT

46

13.VOX 1adjust

14.VOX 10adjust

15.BATTdetectionwriting

16.BATTdetectioncheck

1) Adj item:[VOX1]Adjust:[***]AG : 1kHz/45mV at

MIC terminal1) Adj item:[VOX10]

Adjust:[***]AG : 1kHz/3mV at

MIC terminal

1) Adj item:[BATT]Adjust:[***]

PTT : ON

[Panel test mode]1) CH-Sig : 1-1BATT terminal voltage: 6.0VPTT : ON

1) Adj item:[VOX1]AG : 1kHz/45mV at

MIC terminal

1) Adj item:[VOX10]AG : 1kHz/3mV at

MIC terminal

1) Adj item:[BatteryWarning Level]

PTT : Press [Transmit]button.



BATT terminal voltage: 6.0VPTT : Press [Transmit]button.

AG

PowermeterDVM

Panel

Panel

Universalconnector

ANTBATTterminal

[Panel tuning mode]After apply signalfrom AG, press [ ]key to store theadjustment value.

[PC test mode]After apply signal fromAG, press [Apply]button to store theadjustment value.Press the PTT switchor [Transmit] buttonon the PC window.Apply 6.20V tobattery terminal.Confirm that onepre-determinednumeric in the range1 to 256 appears.

[Panel tuning mode]Press [ ] key to storethe adjustment value.

[PC test mode]Press [Apply] buttonto store theadjustment value.Check The transceiver

can transmitwithout causingthe LED to blink.

Mode, Signaling, Necessary adjustment and order

Mode SignalingNecessary adjustment and order

Wide Narrow Very Narrow

Analog Audio 1. Balance adjust 1. Balance adjust-2. Analog Deviation adjust [Wide] 2. Analog Deviation adjust [Narrow]

QT 1. Balance adjust 1. Balance adjust2. Analog Deviation adjust [Wide] 2. Analog Deviation adjust [Narrow] -3. QT Deviation adjust [Wide] 3. QT Deviation adjust [Narrow]

DQT 1. Balance adjust 1. Balance adjust2. Analog Deviation adjust [Wide] 2. Analog Deviation adjust [Narrow] -3. DQT Deviation adjust [Wide] 3. DQT Deviation adjust [Narrow]

LTR 1. Balance adjust 1. Balance adjust2. Analog Deviation adjust [Wide] 2. Analog Deviation adjust [Narrow] -3. LTR Deviation adjust [Wide] 3. LTR Deviation adjust [Narrow]

DTMF 1. Balance adjust 1. Balance adjust2. Analog Deviation adjust [Wide] 2. Analog Deviation adjust [Narrow] -3. DTMF Deviation adjust [Wide] 3. DTMF Deviation adjust [Narrow]

2TONE 1. Balance adjust 1. Balance adjust2. Analog Deviation adjust [Wide] 2. Analog Deviation adjust [Narrow] -3. TONE Deviation adjust [Wide] 3. TONE Deviation adjust [Narrow]

MSK 1. Balance adjust 1. Balance adjust(FleetSync) 2. Analog Deviation adjust [Wide] 2. Analog Deviation adjust [Narrow] -

3. MSK Deviation adjust [Wide] 3. MSK Deviation adjust [Narrow]NXDN 1. Balance adjust 1. Balance adjust

- 2. NXDN Deviation adjust [Narrow] 2. NXDN Deviation adjust [Very Narrow]3. CWID Deviation adjust [Very Narrow]

NX-300

Item


Specifications/

RemarksTest-


ADJUSTMENT

47

1. AF levelsetting

2. Sensitivity 1adjust

3. Sensitivity 2adjust

SSGDVMAF VTVMDummyload


Panel

Panel



Panel

Panel

Turn the Volumeknob to obtain0.63V AF output.

Write the value asfollowings.

[L SENS1] / [Low]: 120[L’ SENS1] / [Low’]: 135[C SENS1] / [Center]: 145[H’ SENS1] / [High’]: 160[H SENS1] / [High]: 173The sub LCD displayshows the RSSI value.Change theadjustment value toget maximum RSSIvalue.(Refer to below)

Write the value asfollowings.

[H SENS2] / [High]: 245

0.63V±0.1VVolumeknob



[Panel test mode]1) CH-Sig : 1-1SSG output : -47dBm(1mV)(MOD:1kHz/±1.5kHz)

1) Adj item:[SENS1]Adjust:[***]

2) Adj item:[L SENS1]→[L’ SENS1]→[C SENS1]→[H’ SENS1]→[H SENS1]Adjust:[***]Press [ ] key to storethe adjustment value.

1) Adj item:[SENS2]Adjust:[***]

2) Adj item:[L SENS2]→[L’ SENS2]→[C SENS2]→[H’ SENS2]Adjust:[***]SSG output :-90dBm (7.08µV)(MOD:1kHz/±1.5kHz)Press [ ] key to storethe adjustment value.

3) Adj item:[H SENS2]Adjust:[***]

Press [ ] key to storethe adjustment value.



SSG output : -47dBm(1mV)(MOD:1kHz/±1.5kHz)1) Adj item:[Sensitivity 1]2) Adj item:[Low]



1) Adj item:[Sensitivity 2]2) Adj item:[Low]

[Low’][Center][High’]

SSG output :-90dBm (7.08µV)(MOD:1kHz /±1.5kHz)Press [Apply All] button tostore the adjustment value.

3) Adj item:[High]Press [Apply All] button tostore the adjustment value.

Receiver Section

Adjustment value

NX-300Adj Point

Th

e va

lue

of

the

sub

LC

D d

isp

lay

1 256

NX-300

Item


Specifications/

RemarksTest-


ADJUSTMENT

48

4. RSSIreferenceadjust *3

[AnalogNarrow]

[AnalogWide]

[NXDN VeryNarrow]

1) Adj item:[An RRSSI]Adjust:[***]2) Adj item:[AnL RRSSI]→[AnL’ RRSSI]→[AnC RRSSI]→[AnH’ RRSSI]→[AnH RRSSI]Adjust:[***]SSG output :12dB SINAD level -3dB(MOD:1kHz/±1.5kHz)1) Adj item:[Aw RRSSI]

Adjust:[***]2) Adj item:[AwL RRSSI]→[AwL’ RRSSI]→[AwC RRSSI]→[AwH’ RRSSI]→[AwH RRSSI]Adjust:[***]SSG output :12dB SINAD level -3dB(MOD:1kHz/±3kHz)1) Adj item:[Nv RRSSI]

Adjust:[***]2) Adj item:[NvL RRSSI]→[NvL’ RRSSI]→[NvC RRSSI]→[NvH’ RRSSI]→[NvH RRSSI]Adjust:[***]SSG output :12dB SINAD level forAnalog Narrow -3dB(MOD:1kHz/±1.5kHz)

1) Adj item:[RSSIReference(AnalogNarrow)]


SSG output :12dB SINAD level -3dB(MOD:1kHz /±1.5kHz)

1) Adj item:[RSSIReference(AnalogWide)]


SSG output :12dB SINAD level -3dB(MOD : 1kHz /±3kHz)

1) Adj item:[RSSIReference (NXDNVery Narrow)]


SSG output :12dB SINAD level forAnalog Narrow -3dB (MOD:1kHz/±1.5kHz)



[Panel tuning mode]After input signalfrom SSG, press [ ]key to store theadjustment value.

[PC test mode]After input signalfrom SSG, press[Apply] button tostore theadjustment value.

*3: The “RSSI reference adjust” of NXDN Narrow is common with the “RSSI reference adjust [Analog Narrow]”.

NX-300

Item


Specifications/

RemarksTest-


ADJUSTMENT

49

5. Squelch(Open)adjust *4

[AnalogNarrow]

[AnalogWide]

[NXDN VeryNarrow]

1) Adj item:[An SQL]Adjust:[***]

2) Adj item:[AnL SQL]→[AnL’ SQL]→[AnC SQL]→[AnH’ SQL]→[AnH SQL]Adjust:[***]SSG output :12dB SINAD level +1dB(MOD:1kHz/±1.5kHz)1) Adj item:[Aw SQL]

Adjust:[***]2) Adj item:[AwL SQL]→[AwL’ SQL]→[AwC SQL]→[AwH’ SQL]→[AwH SQL]Adjust:[***]SSG output :12dB SINAD level +1dB(MOD:1kHz/±3kHz)1) Adj item:[Nv SQL]

Adjust:[***]2) Adj item:[NvL SQL]→[NvL’ SQL]→[NvC SQL]→[NvH’ SQL]→[NvH SQL]Adjust:[***]SSG output :12dB SINAD level forAnalog Narrow -4dB(MOD:400Hz/±1.1kHz)

1) Adj item:[OpenSquelch (AnalogNarrow)]


SSG output :12dB SINAD level +1dB(MOD:1kHz/±1.5kHz)

1) Adj item:[OpenSquelch (AnalogWide)]


SSG output :12dB SINAD level +1dB(MOD:1kHz /±3kHz)

1) Adj item:[OpenSquelch (NXDNVery Narrow)]


SSG output :12dB SINAD level forAnalog Narrow -4dB(MOD:400Hz/±1.1kHz)





*4: The “Squelch (Open) adjust” of NXDN Narrow is common with the “Squelch (Open) adjust [Analog Narrow]”.

NX-300

Item


Specifications/

RemarksTest-


ADJUSTMENT

50

6. RSSI at-118dBmadjust *5

[AnalogNarrow]

[AnalogWide]

[NXDN VeryNarrow]

1) Adj item:[An LRSSI]Adjust:[***]

2) Adj item:[AnL LRSSI]→[AnL’ LRSSI]→[AnC LRSSI]→[AnH’ LRSSI]→[AnH LRSSI]Adjust:[***]SSG output :-118dBm (0.28µV)(MOD:1kHz/±1.5kHz)1) Adj item:[Aw LRSSI]

Adjust:[***]2) Adj item:[AwL LRSSI]→[AwL’ LRSSI]→[AwC LRSSI]→[AwH’ LRSSI]→[AwH LRSSI]Adjust:[***]SSG output :-118dBm (0.28µV)(MOD:1kHz/±3kHz)1) Adj item:[Nv LRSSI]

Adjust:[***]2) Adj item:[NvL LRSSI]→[NvL’ LRSSI]→[NvC LRSSI]→[NvH’ LRSSI]→[NvH LRSSI]Adjust:[***]SSG output :-118dBm (0.28µV)(MOD:1kHz/±1.5kHz)

1) Adj item:[Low RSSI(Analog Narrow)]


SSG output : -118dBm(0.28µV)(MOD:1kHz/±1.5kHz)

1) Adj item:[Low RSSI(Analog Wide)]


SSG output : -118dBm(0.28µV)(MOD:1kHz/±3kHz)

1) Adj item:[Low RSSI(NXDN Very Narrow)]







*5: The “RSSI at -118dBm adjust” of NXDN Narrow is common with the “RSSI at -118dBm adjust [Analog Narrow]”.

NX-300

Item


Specifications/

RemarksTest-


ADJUSTMENT

51

7. RSSI at-80dBmadjust *6

[AnalogNarrow]

[AnalogWide]

[NXDN VeryNarrow]

8. Squelch(Tight)adjust

[AnalogNarrow]

[AnalogWide]

1) Adj item:[An HRSSI]Adjust:[***]

2) Adj item:[AnL HRSSI]→[AnL’ HRSSI]→[AnC HRSSI]→[AnH’ HRSSI]→[AnH HRSSI]Adjust:[***]SSG output : -80dBm(22.4µV)(MOD:1kHz/±1.5kHz)1) Adj item:[Aw HRSSI]

Adjust:[***]2) Adj item:[AwL HRSSI]→[AwL’ HRSSI]→[AwC HRSSI]→[AwH’ HRSSI]→[AwH HRSSI]Adjust:[***]SSG output : -80dBm(22.4µV)(MOD:1kHz/±3kHz)1) Adj item:[Nv HRSSI]

Adjust:[***]2) Adj item:[NvL HRSSI]→[NvL’ HRSSI]→[NvC HRSSI]→[NvH’ HRSSI]→[NvH HRSSI]Adjust:[***]SSG output : -80dBm(22.4µV)(MOD:1kHz/±1.5kHz)1) Adj item:[An SQLT]

Adjust:[***]2) Adj item:[AnL SQLT]→[AnL’ SQLT]→[AnC SQLT]→[AnH’ SQLT]→[AnH SQLT]Adjust:[***]SSG output :12dB SINAD level +6dB(MOD:1kHz/±1.5kHz)1) Adj item:[Aw SQLT]

Adjust:[***]2) Adj item:[AwL SQLT]→[AwL’ SQLT]→[AwC SQLT]→[AwH’ SQLT]→[AwH SQLT]Adjust:[***]SSG output :12dB SINAD level +6dB(MOD:1kHz/±3kHz)

1) Adj item:[High RSSI(Analog Narrow)]



1) Adj item:[High RSSI(Analog Wide)]


SSG output : -80dBm(22.4µV)(MOD:1kHz/±3kHz)

1) Adj item:[High RSSI(NXDN Very Narrow)]



1) Adj item:[TightSquelch (AnalogNarrow)]


SSG output :12dB SINAD level +6dB(MOD:1kHz/±1.5kHz)

1) Adj item:[TightSquelch (AnalogWide)]


SSG output :12dB SINAD level +6dB(MOD:1kHz /±3kHz)





*6: The “RSSI at -80dBm adjust” of NXDN Narrow is common with the “RSSI at -80dBm adjust [Analog Narrow]”.

NX-300TERMINAL FUNCTION

52

Control unit (X53-4260-XX)

Pin No. Name I/O Function

CN1

1 /CS O Chip select output

2 /RES O LCD reset output

3 AO O Address bus 0 output

4 /WR O WR bus output

5 D0 I/O Data bus 0

6 D1 I/O Data bus 1

7 D2 I/O Data bus 2

8 D3 I/O Data bus 3

9 D4 I/O Data bus 4

10 D5 I/O Data bus 5



13 VDD O 3.3V LCD power supply output

14 VSS - GND

15 VDD O 3.3V LCD power supply output

16 V1 - LCD drive power supply




20 V5 O LCD drive power supply

CN23

1 ME - Internal MIC GND

2 EMC I Internal MIC input

3 SP+ O BTL output + for internal speaker

4 SP+ O BTL output + for internal speaker

5 SP- O BTL output - for internal speaker

6 SP- O BTL output - for internal speaker

7 6_/KEYI1 I Key matrix input (KEYI1 for 6-key)

8 6_/KEYO2 O Key matrix output (KEYO2 for 6-key)

9 BL_SB O LCD backlight voltage output



12 BL_SB O LCD backlight voltage output

13 6_/KEYI0 I Key matrix input (KEYI0 for 6-key)

14 AGND - GND

CN403

1 33A O 3.3V for volume level

2 VOL_GND - GND for volume level

3 VOL I Volume level input for audio control

4 EN3 I Encoder pulse input

5 AGND - GND





9 +B O Power output after passing through the fuse

10 SB1 I Power input after power switch

CN404

1 LED_G O Green LED control output

2 /EMG O Key matrix output (Emergency (Orange) key)

3 LED_R O Red LED control output

4 IFC O 50IF switch control output

5 /SAVE O 50C Reg. control output

6 I2CCK O TCXO thermometer clock output

7 /5TC O 50T Reg./switch control output

8 I2CSDA I TCXO thermometer data input

9 SBC O SB3 switch control output

10 /T_R O TX/RX control output

11 TV2 O RX tuning voltage 2 control output

12 ASSIST O VCO tuning voltage control output

13 TV1 O RX tuning voltage 1 control output

14 VAGC I AGC voltage input

15 5RC O 50R switch control output

16 TCXO_MOD O TCXO modulation output

17 PGND - GND

18 RSSI I RSSI voltage input

19 PGND - GND

20 CV I CV voltage input

21 AGND - GND

22 NC - No connection


24 +B I Power input after passing through the fuse






30 AGND - GND

31 PTT I PTT input

32 Side_G O Key matrix output (SIDE1,2 key)

33 Side_1 I Key matrix input (SIDE1 key)

34 W/N O W/N control output

35 SDO1 O PLL serial data output


37 /PCS_RF O PLL enable output

38 /DSW O APC voltage discharge switch control output

39 APC O APC control output

40 /APCSW O APC switch control output

41 VCO_MOD O VCO modulation output

42 THP I Thermistor voltage input

43 PLD I PLL lock detect input


53


44 RFAGC O RF AGC control output

45 SCK1 O PLL clock output

46 GND - GND

47 S_DET I Battery select input

48 GND - GND


50 IF_DET I IF input

CN405

1 SSW I EXT/INT speaker switch input

2 SP+ O BTL output + for external speaker

3 SP- O BTL output - for external speaker

4 MSW I EXT/INT MIC switch input

5 EMC I External MIC input

6 ME - External MIC GND

7 PTT I External PTT input

8 PF I Programmable function key input

9 OPT I/O Option interface I/O

10 E - GND

11 5V O 5V output

12 TXD O Serial data output

13 RXD I Serial data input


CN701 (for production)

1~20

CN710

1 OPT1 I/O

2 OPT3 I/O

3 26P_RD I

4 26P_TD O

5 NC -

6 OPT4 O

7 OPT10 O

8 OPT5 O

9 AGND -

10 AGND - Refer to “CN710 26-pin

11 AI I connector specification”

12 AO O described on pages 56 to 59.

13 AGND -

14 5V O

15 OPT9 I

16 DTI I

17 OPT8 I/O

18 OPT11 O

19 OPT7 I/O

20 OPT2 I/O

21 TXO O


22 RXEO O

23 RXEI I Refer to “CN710 26-pin

24 TXI I connector specification”

25 OPT6 O described on pages 56 to 59.

26 POW O

TX-RX unit (X57-7370-10 A/2)


CN900

1 LED_G I Green LED control input

2 /EMG I Key matrix input (Emergency (Orange) key)

3 LED_R I Red LED control input

4 IFC I 50IF switch control input

5 /SAVE I 50C Reg. control input

6 I2CCK I TCXO thermometer clock input

7 /5TC I 50T Reg./switch control input

8 I2CSDA O TCXO thermometer data output

9 SBC I SB3 switch control input

10 /T_R I TX/RX control input

11 TV2 I RX tuning voltage 2 control input

12 ASSIST I VCO tuning voltage control input

13 TV1 I RX tuning voltage 1 control input

14 VAGC O AGC voltage output

15 5RC I 50R switch control input

16 TCXO_MOD I TCXO modulation input

17 GND - GND

18 RSSI O RSSI voltage output

19 GND - GND

20 CV O CV voltage output

21 GND - GND









30 GND - GND

31 PTT O PTT output

32 Side_G I Key matrix input (SIDE1,2 key)

33 Side_1 O Key matrix output (SIDE1 key)

34 W/N I No connection (Test pad)

35 SDO1 I PLL serial data input

36 Side_2 O Key matrix output (SIDE2 key)

37 /PCS_RF I PLL enable input


54

Name I/OSignal

FunctionRating and Condition

Type Parameter Min Typ Max Unit

PTT2 O Digital PTT output[Output]

Output Impedance 10k Ω

[Input]

PTT1 I Digital PTT input VIH 2.8 3.3 V

VIL 0 0.5 V

[Input]

MDSW I Digital Man down switch input VIH 2.8 3.3 V

VIL 0 0.5 V

GND - GND GND Allowable current value mA

VOH(Io=-5mA) 4.0 - 5.3 V

TXD O Digital Serial data output VOL(Io=5mA) 0 - 0.8 V

Baud Rate 19200 bps

VIH 2.8 - 5.3 V

RXD I Digital Serial data input VIL 0 - 0.8 V

Baud Rate 19200 bps

RSSI O Analog RSSI output Output Impedance 10k Ω

Solder Pad


38 /DSW I APC voltage discharge switch control input

39 APC I APC control input

40 /APCSW I APC switch control input

41 VCO_MOD I VCO modulation input

42 THP O Thermistor voltage output

43 PLD O PLL lock detect output

44 RFAGC I RF AGC control input

45 SCK1 I PLL clock input

46 GND - GND

47 S_DET O Battery select output

48 GND - GND


50 IF_DET O IF output

CN901

1 PTT I Internal PTT input

2 GND - GND

3 Side_G O Key matrix output (SIDE1,2 key)



Option board unit (X57-7370-10 B/2)


CN737

1 OPT1 I/O

2 OPT3 I/O

3 26P_RD I

4 26P_TD O

5 NC -

6 OPT4 O

7 OPT10 O

8 OPT5 O

9 DGND -

10 AGND -

11 NC -

12 NC -Refer to “CN737 Option board

13 AGND -connector specification”

14 5V Odescribed on pages 60 to 63.

15 OPT9 I

16 DTI I

17 OPT8 I/O

18 OPT11 O

19 OPT7 I/O

20 OPT2 I/O

21 TXO O

22 RXEO O

23 RXEI I

24 TXI I

25 OPT6 O

26 POW O


55

Pin No. Name I/OSignal

FunctionRating and Condition

Type Parameter Min Typ Max Unit

EXT/INT speaker switch input.

1 SSW I Digital L: External speaker ONVIH 2.8 - 5.3 V

H: Internal speaker ONVIL 0 - 0.7 V

[ 8Ω load ]

Max output power 1.3 1.8 W

2 SP+ O Analog BTL output + for external speaker. (1kHz, Batt=7.5V)

DC Bias 2.5 V

Allowable Frequency 300 3000 Hz

[ 16Ω load ]

Max output power 0.9 1.4 W

3 SP- O Analog BTL output + for external speaker. (1kHz, Batt=7.5V)

DC Bias 2.5 V


EXT/INT MIC switch input.

4 MSW I Digital L: External MIC ON VIH 2.8 - 5.3 V

H: Internal MIC ON VIL 0 - 0.5 V

Audio Level 7.7 12.5 17.3 mV

(STD deviation)

5 EMC I Analog External MIC input. DC Bias 3.3 V


Input impedance - 1.8 - kΩ

6 ME - - External MIC GND

7 PTT I DigitalExternal PTT input. VIH 2.8 - 5.3 V

L: PTT ON VIL 0 - 0.7 V

V (PF2 key ON) 2.2 - 2.8 V

8 PF I Analog Programmable function key input. V (PF1 key ON) 1.7 - 2.2 V

V (PF1, PF2 key ON) 1.3 - 1.7 V

9 OPT I DigitalMan down input VIH 2.8 - 5.3 V

Programmable active H/L VIL 0 - 0.7 V

10 E - - GND

5V power supply output Output Voltage 4.9 5.0 5.1 V

11 5V - Power (Output control is FPU (Iout = 100mA)

programmable) Maximum Current - - 0.2 A

VOH (Io=-5mA) 4.0 - 5.3 V

12 TXD O Digital Serial data output. VOL (Io=5mA) 0 - 0.8 V

Baud Rate 19200 bps

VIH 2.8 - 5.3 V

13 RXD I Digital Serial data input. VIL 0 - 0.8 V

Baud Rate 115200 bps

14 NC - -Not used

(reserved for future option)

Universal connector


56

CN710 26-pin connector specification

Pin No. Name I/O Signal TypeRating and Condition

Parameter Min Typ Max Unit

1 OPT1[Input]

6 OPT4VIH 2.8 3.3 V

8 OPT5 I/O DigitalVIL 0 0.5 V

17 OPT8[Output]

18 OPT11VOH 2.8 3.5 V

VOL 0 0.5 V

[Input]

2 OPT3 VIH 2.8 3.3 V

19 OPT7 I/O Digital VIL 0 0.5 V

20 OPT2 [Output]

25 OPT6 VOH 2.8 3.5 V

VOL 0 0.5 V

[Input]

3 26P_RD I DigitalVIH 2.8 3.3 V

VIL 0 0.5 V

Baud rate 19200 bps

[Output]

4 26P_TD O DigitalVOH 2.8 3.5 V

VOL 0 0.5 V

Baud rate 19200 bps

Input Amplitude (Square wave) - 3.3 - Vp-p

15 OPT9 I AnalogCoupling Capacitor - 0.01 - uF

Input Impedance 22k - - Ω

Allowable Frequency 300 - 3000 Hz

Output Amplitude (1kHz, 60% deviation) 0.9 1.3 1.7 Vp-p

7 OPT10 O Analog/DigitalCoupling Capacitor 0.1 uF



Input Amplitude (1kHz, 60% deviation) 0.3 0.5 0.7 Vp-p

11 AI I AnalogCoupling Capacitor - 0.1 - uF

Input Impedance - 12k - Ω


Output Amplitude (1kHz, 60% deviation) 30 50 70 mVp-p

12 AO O AnalogCoupling Capacitor - 0.1 - uF

Output Impedance - 35k - Ω



16 DTI I AnalogCoupling Capacitor - 0.1 - uF




57



Output Amplitude (1kHz, 60% deviation)

while external MIC 160 260 360 mVp-p

21 TXO O Analog while internal MIC - 130 - mVp-p

Coupling Capacitor - 0.1 - uF

Output Impedance - - 2.2k Ω



22 RXEO O AnalogCoupling Capacitor - 0.1 - uF



Input Amplitude (1kHz, 60% deviation) 450 640 830 mVp-p

23 RXEI I AnalogCoupling Capacitor 0.1 uF

Input Impedance 22k Ω


Input Amplitude (1kHz, 60% deviation)


24 TXI I Analog while internal MIC - 130 - mVp-p




14 5V O PowerOutput Voltage 5 V

Output Current 78 mA

26 POW O PowerOutput Voltage 7.5 V


9Allowable current value

10 AGND - GND(Total current of 3 pins)

100 mA

13

5 NC - - -


58

CN710 26-pin connector specification

Pin No. Name Device I/O Conection Function

[COR]

Conv/LTR

L: Not activity receiving

H: Activity receiving

[TOR]

Conv/LTR


1 OPT1ANI board O Aux Input H: Activity receiving (Sub Tone or LTR ID is OK)

[LOK]

Conv

L: TX Complete

H: Not TX Complete

LTR

L: TX Link Complete (until TX finishes)

H: Not TX Link Complete

VGS-1 I BUSY BUSY indication

2 OPT3ANI board I KEY TX requirement input

VGS-1 I PLAY PLAY indication

3 26P_RDANI board - - -

VGS-1 I SO Serial data input

4 26P_TDANI board - - -

VGS-1 O SI Serial data output

5 NC - - - -

6 OPT4ANI board O PTT PTT signal output

VGS-1 O EN Enable

7 OPT10ANI board - - -

VGS-1 O USEL UART speed select output

8 OPT5ANI board O Emergency Emergency signal output

VGS-1 O RST Reset output

9 AGNDANI board - A- GND

VGS-1 - AGND AGND


VGS-1 - AGND AGND

11 AIANI board - - -

VGS-1 I AO VGS Audio input

12 AOANI board - - -

VGS-1 O AI VGS Audio output


VGS-1 - AGND AGND

14 5VANI board - - Note: POW and 5V can not be used simultaneously.

VGS-1 O 5C 5V power supply

15 OPT9ANI board I Sidetone Sidetone input

VGS-1 - - -


59


16 DTIANI board I Data Out Data signal input

VGS-1 - - -

17 OPT8ANI board I Tone Control Speaker mute signal input

VGS-1 - - -

18 OPT11ANI board O Man-Down Man-Down output

VGS-1 - - -

19 OPT7ANI board I MIC Mute MIC mute signal input

VGS-1 - - -

20 OPT2ANI board I Aux Output Emergency signal input

VGS-1 - - -

21 TXOANI board - - -

VGS-1 - - -

22 RXEOANI board - - -

VGS-1 - - -

23 RXEIANI board - - -

VGS-1 - - -

24 TXIANI board - - -

VGS-1 - - -


VGS-1 - - -

26 POWANI board O A+ Switched B output

VGS-1 - - Note: POW and 5V can not be used simultaneously.


60

CN737 Option board connector specification



1 OPT1[Input]

6 OPT4VIH 2.8 3.3 V

8 OPT5 I/O DigitalVIL 0 0.5 V

17 OPT8[Output]

18 OPT11VOH 2.8 3.5 V

VOL 0 0.5 V

[Input]

2 OPT3 VIH 2.8 3.3 V

19 OPT7 I/O Digital VIL 0 0.5 V

20 OPT2 [Output]

25 OPT6 VOH 2.8 3.5 V

VOL 0 0.5 V

[Input]

3 26P_RD I DigitalVIH 2.8 3.3 V

VIL 0 0.5 V

Baud rate 19200 bps

[Output]

4 26P_TD O DigitalVOH 2.8 3.5 V

VOL 0 0.5 V

Baud rate 19200 bps

Input Amplitude (Square wave) - 3.3 - Vp-p

15 OPT9 I AnalogCoupling Capacitor - 0.01 - uF



Output Amplitude (1kHz, 60% deviation) 0.9 1.3 1.7 Vp-p

7 OPT10 O Analog/DigitalCoupling Capacitor 0.1 uF



11 NC - - -

12 NC - - -


16 DTI I AnalogCoupling Capacitor - 0.1 - uF



Output Amplitude (1kHz, 60% deviation)


21 TXO O Analog while internal MIC - 130 - mVp-p

Coupling Capacitor - 0.1 - VuF




61




22 RXEO O AnalogCoupling Capacitor - 0.1 - uF



Input Amplitude (1kHz, 60% deviation) 450 640 830 mVp-p

23 RXEI I AnalogCoupling Capacitor 0.1 uF

Input Impedance 22k Ω


Input Amplitude (1kHz, 60% deviation)


24 TXI I Analog while internal MIC - 130 - mVp-p




14 5V O PowerOutput Voltage 5 V


26 POW O PowerOutput Voltage 7.5 V


9 DGND - GNDAllowable current value

mA

10AGND - GND (Total current of 3 pins)

100mA

13

5 NC - - -


62

CN737 Option board connector specification


[COR]

Conv/LTR


H: Activity receiving

[TOR]

Conv/LTR


1 OPT1ANI board O Aux Input H: Activity receiving (Sub Tone or LTR ID is OK)

[LOK]

Conv

L: TX Complete

H: Not TX Complete

LTR

L: TX Link Complete (until TX finishes)

H: Not TX Link Complete

VGS-1 I BUSY BUSY indication

2 OPT3ANI board I KEY TX requirement input

VGS-1 I PLAY PLAY indication

3 26P_RDANI board - - -

VGS-1 I SO Serial data input

4 26P_TDANI board - - -

VGS-1 O SI Serial data output

5 NC - - - -

6 OPT4ANI board O PTT PTT signal output

VGS-1 O EN Enable


VGS-1 O USEL UART speed select output

8 OPT5ANI board O Emergency Emergency signal output

VGS-1 O RST Reset output

9 DGNDANI board - A- GND

VGS-1 - DGND DGND


VGS-1 - AGND AGND

11 NC - - - -

12 NC - - - -


VGS-1 - AGND AGND

14 5VANI board - - Note: POW and 5V can not be used simultaneously.

VGS-1 O 5C 5V power supply

15 OPT9ANI board I Sidetone Sidetone input

VGS-1 - - -


63


16 DTIANI board I Data Out Data signal input

VGS-1 - - -

17 OPT8ANI board I Tone Control Speaker mute signal input

VGS-1 - - -

18 OPT11ANI board O Man-Down Man-Down output

VGS-1 - - -

19 OPT7ANI board I MIC Mute MIC mute signal input

VGS-1 - - -

20 OPT2ANI board I Aux Output Emergency signal input

VGS-1 - - -

21 TXOANI board - - -

VGS-1 - - -

22 RXEOANI board - - -

VGS-1 - - -

23 RXEIANI board - - -

VGS-1 - - -

24 TXIANI board - - -

VGS-1 - - -


VGS-1 - - -

26 POWANI board O A+ Switched B output

VGS-1 - - Note: POW and 5V can not be used simultaneously.

64

JIHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

D1D2D5

D6D9D10

J79-0131-19

S109S11#

S120

S13*

R848

R849

R853

S21S34S47

S52S65S78

S83S96

NX-300 PC BOARD

CONTROL UNIT (X53-4260-XX) -10: K, -11: K3

Component side view (J79-0131-19)

Ref. No. Address

IC1 6K

IC415 8K

Q1 7K

Q2 7L

Q3 6L

Q4 4L

Q5 4L

D1 5D

D2 5C

D3 3O

Ref. No. Address

D4 3Q

D5 5B

D6 7B

D7 10O

D8 10Q

D9 7D

D10 7C

D11 7L

D12 7M

D13 7M

Ref. No. Address

D14 7M

D15 7L

D16 7L

D17 9L

D18 4L

D19 4L

D20 8M

D21 8M

D22 8L

D23 9L

65

J K L M N O P Q R S

1

2

3

4

5

6

7

8

9

10

11

12

13

14

GSD

GSD

GSD

1

34

5

1 345

C24 R406C27

C28C40 1

20 V5V4V3V2V1VDDVSSVDDD7D6D5D4D3D2D1D0/WRAO/RES/CS

C2

C3

C4

C5

C7

C8

D3 D4

C452

D7 D8

D13

D16

CN22

CN23

CN24

R500 D22

IC1

R10

R11

R12

R15

R17

R29

R30

R1R2

R4R5R6R7R8R9

R40

C11

C13C14

C15

C23

C25

C26

C29

C30C31 C32

C33 C34

C35

C36

C37

C38

C41

C1C6

R483

TH1

IC415

D11

D12

D14D

15D

18

D19

D20

D21

D23

L1L2

L3

L4L5

L6

L7

R14

R16

R18R19

R20R21

1 14A

GN

D6_/K

EY

I0B

L_SB

6_/KE

YO

16_/K

EY

O0

BL_S

B6_/K

EY

O2

6_/KE

YI1

SP

–S

P–

SP

+

EM

CM

E

SP

+

R22R23R24

R25

Q1

R26

Q2

R27

Q3

Q4

R28

Q5

R31

R32R33

R34R35

R3

CN1

C10

C12

C16

C17

D17



PC BOARD NX-300

Component side

Foil side

Layer 1Layer 2Layer 3Layer 4Layer 5Layer 6

66

JIHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

G

SD

G SD

134 5

1

34

5

G

SD

R402

R404

R407R408

CN401+ –

CN403

CN404

CN405

R425

R432

R433

R438

C402

C404

R441

C405

C406

R442

R443

C407

R444

R446

C410

C411C414

R451

C415 +

C416

R454

C418

C419

C420

C422

C424

R462

R463C428

R464

C429

R466

C430

C432R470

R471

C435C436

R472

C437C438

R474

C439R475

C440

C442

R480R482C446

C448

R484

R485

R487

R488

R489

C453

C454

R490

R492

R494

R495

R496

R497

C464

D405

C466

C469

D409

D410

D414

D415

IC402

IC404

IC405

IC406

IC407

L704

IC408

11

3

3

1

4

1

3

6

4

1

3

6

4

1 3

6 4

1 3

6 4

1 3

6 4

5

6

4

3

5

4

4

1

5

8

4

1

5

6

4

1

3

3

1

4

5

3

1

4

6

8

L705

L707

IC411

3

+

+

+

1

4

4

4

4

1

1

3

3

1

4

6

5

4

5

8

4

1

5

8

10

1

11

20

1

5

8

1

5

8

5

IC412

IC413

IC4141

2

4

3

L713

IC417

L714

IC418

L717

R101

R117

CN104

CN105

R127

L8

R128

R130

R132

R133

R135

R136

R137

R139

C102

C103

R140

R141

C105

R142

C106

R145R146R147

X101

X102

R150

C119

R156

R157

R158

C120

C121

R546

R547

R165 R172

C136

C137

R174

C141

C143

R180

C144

R181

C146

R183

C148

R185

R187

C153

R190

C154

R192C156C157

R193

C158

R194

Q402

3

1

4

6

Q403

Q404

Q405

Q406

B

C

E

Q407

Q409

Q410

Q411

IC102

Q413

Q414

Q415

L401

IC106

L403

IC109

L409

L410

R424

R431

R434

R453

C417

R455R458

R460C427

R467

R479

C455C456

R493

C457

C459C460C461

C462C463

D406

C468

C470

D411

D413

D417

IC4091 4

8 5

IC416

R501

R504

R506

R507R508R509R510

R549

Q408

L402

R409

R435R436

C403

C408

R461R465

R469

C434

R477

C444R486

C451

R491

R498

R499C465

D408

D412

1 10E

N2

+BSB

1E

N3

AG

ND

EN

4E

N1

VO

L_GN

DV

OL

33M

IC403

IC410

R512R514

R516R518

R520R522

R524R526

R527R528

R530R532

R534R536

R538R540

R542

R545

Q401

CN402

R437R439

C409

R445

R448R449

C412

R450

R452R456 C421

C431

C433

R473

C441

R481

C467

D407 D

416

L702R548

Q412

R478C443

L709

R102

R103

R105

R107

R110

R111R113R115

R116R118

R119

CN101

CN102

R121

R122R123

R126

R129R131

C101

C104

R143

C107

C109

R148

C111C112

C113

C116

C117

C123 1 3

5 4

R166C134

IC104

C401R447

R457C445C447

C449C450

L708

L711L712

R502R503

R138

R159R160R161

R162C130

C159

D102

IC1075

31

1 14N

CR

XD

TX

D5VEO

PT

PF

PT

TM

EE

MC

MS

WS

P–

SP

+S

SW

46

1

6 10

C413

R459

IC401

R725

R511R513

R515R517

R519R521

R523R525

R529R531

R533R535

R537R539

R541R543

R544

C425

1 49LE

D_G

LE

D_R

/SA

VE

/5T

CS

BC

TV

2T

V1

5R

CG

ND

GN

DG

ND

NC

+B

+B

NC

PT

TS

ide_1

SD

O1

/PC

S_R

FA

PC

VC

O_M

OD

PLD

SC

K1

S_D

ET

NC

/EM

GIF

CI2

CC

KI2

CS

DA

/T_R

AS

SIS

TVA

GC

TC

XO

_MO

DR

SS

IC

VN

C+B

+B

NC

GN

DS

ide_G

W/N

Sid

e_2

/DS

W/A

PC

SW

TH

PR

FAG

CG

ND

GN

DIF

_DE

T 502

NX-300 PC BOARD


Foil side view (J79-0131-19)

Ref. No. Address

IC101 5K

IC102 5I

IC103 4K

IC104 3H

IC105 4L

IC106 8I

IC107 7I

IC108 7K

IC109 6G

IC401 5F

IC402 4F

IC403 7F

Ref. No. Address

IC404 9D

IC405 3F

IC406 5C

IC407 5B

IC408 4C

IC409 3C

IC410 8E

IC411 9F

IC412 4D

IC413 3D

IC414 9A

IC416 8A

Ref. No. Address

IC417 6F

IC418 6F

IC701 7Q

IC702 5R

IC703 7P

IC704 3P

IC705 9N

IC706 7N

IC707 3P

IC708 9Q

IC709 4R

IC710 6N

Ref. No. Address

IC711 6S

IC712 6N

IC713 4Q

IC714 5R

IC715 5P

IC716 5N

Q101 3K

Q102 3K

Q103 3L

Q401 8D

Q402 8C

Q403 8D

Ref. No. Address

Q404 9E

Q405 3E

Q406 5E

Q407 4E

Q408 7C

Q409 7A

Q410 8A

Q411 8G

Q412 9D

Q413 9C

Q414 6C

Q415 6C

Ref. No. Address

Q701 6Q

Q702 4R

Q703 6R

Q704 7R

Q705 5O

Q706 5O

Q707 4N

D101 3L

D102 6G

D401 4M

D402 5M

D403 5M

Ref. No. Address

D404 5M

D405 4B

D406 4C

D407 9D

D408 7C

D409 3D

D410 4D

D411 7A

D412 8C

D413 7A

D414 6F

D415 7F

Ref. No.

D416

D417

D701

D702

D703

D704

D705

D706

D707

67

J K L M N O P Q R S

1

2

3

4

5

6

7

8

9

10

11

12

13

14

G SD

G

SD

GSD

GSD

G

SD

G

SDR401

R403R405

R410

R411

R412

R413

R414R415R416

R417

R800

R418

R801

R802

R806

R807

R420

R427R428R429

R812R813

R814

R816

R818

R432

R821

R826

R828

R829

R831

R834

R837

R838

R840

R841

R845

R847

R463C428

+ +

R468

R851R852

R470

F701

Q101Q102

L101

D401

L102

D402

D403

D404

Q702

Q703

Q707

L710

4L715L716

L717

R101

R106

R108

R112R114R117

CN104

CN105

R130

R710R712R713

R717

R719

C102

C103

CN701

C105C106

R720

R144

C108

+

R721R722

R723

CN707TXD

CN708RXD

R149

R727

R728

C110

R729

X101 CN710

C115

R153

R154

R730

C118

R731

R155

R732

R156

R157

R158

R735

R738

C124

C701

R740

C706

R167

R168

R744

R745

R746

R747

R748

C131

R749

C135

R172

C136

C712

C137

C714

R750

R174

C138

R175

C139

R176

R752

C716

C717

R177

R753

R178

R755

R756

R757

R758

C141 R759

C143

R180

C144

C721

R181

C145

C722

C146

R183

C723

C148

R185

C149

R761

R187

R763

C150

C151C152

C153

R190

C730

C154

C731

R192C156C157 C734

R771

C739

C160

R778

R779

D101

C740

C742

C743

1

1

67 12

13

181924

1213

24

C744

R780

C745

C746

R783

C747

C749R787

C750C753

R791

C755

C757

R793

C758

R794

C759

R798

R799

IC101

IC103

C761

D701

C763

D703

C764

D706D707

C767

C768

C772

C775

C778

C780

C781

IC701

C782

IC702

C786

C787

IC70745

18

4

4 5

1 8

45

18

5

18

45

18

C788

IC708

1

3 4

5

IC709

IC710

C792

IC712

C793

C794 IC714

IC715

C796

IC7164

3

1

4

5

5

1 8

4 5

5

4

1

3

1 8

J79-0131-19

R102

R111R113R115

CN101

CN102

C101

C107

R419R426R440

R830R832

R836

R839

C800

Q103

R120

CN106R724

CN709

R726

C114

CN712

C122

R163 C133

R170

R171

R173

C718

C140

C142

R182

C147

R184R186

R762

C728

R188

R764

R189

R191

C155

C736C737

C738

C161

R782

R784

C748

R786

R788 R789

IC10521

34

C762IC108

IC705

IC706

31

4

4 1

1 25262

5 86

C790C799

R822

R823R833

R835

R842

R843R844

R846

Q705

Q706

R701R702

R703R704

R705R706

R707

R709

R711

R714R715

R716C709

C711C715

C725

C726 31

12

1920

4

41

58

5

R766

R777D704

C766

C777C779

IC704

C789C791

C795

C797

C798

R808

R820R825

R850Q

701

L701

L706

R718

CN702PTT2

CN703PTT1

CN704RSSI

CN705MAN

DOWN

CN706GND

CN711

R736

C703

R741

C713R751

C719

R767C735

R775

R795

R796

C765

IC703

C785

R804

R733R737R742C710

C724C727R765

C756IC713

R803

R805

R809R810

R811

R815

R819

R824R827

C802

C803C804

Q704

R739C704

C705TH701

R743C707

C708

R754

C720

R768

R769

C732R770

R785

C751

C752

R790

R797

C760

D702

D705

C771

IC711

C801

CN103

OPT6

POW

RX

EITX

ITX

OR

XEO

OPT7

OPT2

OPT8

OPT11

OPT9

DTI

AG

ND

5VA

IA

OA

GN

DA

GN

DO

PT10O

PT5N

CO

PT426P_R

D26P_TD

OPT1

OPT3



PC BOARD NX-300

Component side

Foil side


ress

M

4B

4C

9D

7C

3D

4D

7A

8C

7A

6F

7F

Ref. No. Address

D416 9E

D417 5C

D701 8R

D702 8R

D703 4O

D704 3O

D705 8R

D706 6O

D707 6O

68

JIHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

GD S

+

+

+

1

3 4

5

167

1213 18

19

25

1 345

16

34

1

12 13

24

1

4 5

8

134 5

1

4 5

8

1 346

+

GD

S

145 8

GD

S

R600

CF701

R629

R633

R635C602

R641

R648

R651R652

R653

R654

R655

R657

R658

R659

C622

R660

C626

R664

C630

C631

R670

C640

C641

C646

C653

Q503

D604

D605

D608L504

C672

IC404

L513

R500

R503

R505

R704

R705

R514

R712

R523

R717

R527

R721

R530

R724

R531

R725

R532

R726

R533

R727

R535

R537

C504

R541

R735

C506

R738C509

R546 R547R549

C703

L598 L599

C512

C513

C514

C515

R552

C516

C902

C710

C711

C713

C520

C717

C524

C724

C727

R570

C534

C728

C729

C536

R574

C735

C542

C736

C543

C553

C555

C559

C

C947

D501

C562

R795

Q604

Q607

C760

Q608

IC503

IC504

C600

TH600

C628

C637

Q504

Q505

Q507

L500

L503

R501

R502

R504

R506

R703

R511

R512

R513

R515

R709

R519

CN

500C

V

R520

R714

R521

R522

R718

R719

CN

700R

SS

I

R529

R720

R722

R534

R536

R538

R539

C500C

501

C502

C503

C505

R736

C508

R548

X500

C511

R550

C709

C517

R554

C518

R555

C519

R557

C521 C

522

C523

C525

C526

C527 C

528

C529

R566

R567

C720

C533

C535

R572

C537C

539C

541

C550

C554

C558

C759

R796

C572

D518

IC500

IC501

IC700

IC701

C792

R601

R602

R603

C601

R669

R904

CN

701VA

GC

R731

C722

C723

R792

R794

R797

R798

Q610

IC502

R649

R656

C649

C651

IC600

Q605

D505

J79-0128-19 A/2

+

S

NX-300 PC BOARD

TX-RX UNIT (X57-7370-10) (A/2)

Component side view (J79-0128-19 A/2)

Ref. No. Address

IC404 10G

IC500 9B

IC501 8C

IC502 7E

IC503 5C

IC504 7H

IC600 4J

Ref. No. Address

IC700 8H

IC701 9E

IC702 7K

IC900 4P

IC901 9O

IC902 5N

Q503 7B

Ref. No. Address

Q504 3D

Q505 6C

Q507 7C

Q604 6J

Q605 3I

Q607 4I

Q608 4J

Ref. No. Address

Q610 5I

Q704 6L

Q900 9P

Q901 7N

Q902 7M

Q904 9O

Q905 4N

Ref. No. Address

D501 7B

D505 4B

D518 7D

D604 7J

D605 6I

D608 5I

D700 6L

Ref. No. Address

D900 8P

D901 5M

D902 5P

69

J K L M N O P Q R S

1

2

3

4

5

6

7

8

9

10

11

12

13

14

145 8

GD

S

1 345

14

85

+

G GD

DS

S

GG

D

DS

S

134 6

134 5

EB B

C C

1

3 4

5

R629

R633

R648

R651

R654

R655

R659

C622

R660

C626

C636

F900

C640

C641

3

D604

Q704

Q902

Q904

Q905

L901

R901

R902

R906

R907

R908

R909

R910

R913

CN900

R921

R922

R926

C907

R755

R758

C913

C942

C943

C945

C948

C949

C950

Q604

C951

Q608

D700

C955

C957

C766

D901

D902

C964

C967

C971

C972

C973

C974

C976

R904

C900

C903

R763

R764

C761

IC702

R642

R645

R647

R661

IC600

L900

R916

R918

C977

R431

R432

Q900

Q901

R900

R903

R905

R911

R914

CN

901

R920

R923

R927

C904

C906

C908

C910

C912

C915

C917

C919

C925

C926

C928

C930

C932

C934

C936

C938

C940

C941

C946

C953

C956 C

958

D900

C961

C962

C963

C969

IC900

IC901

IC902

S1

R430

R925

R928

C905

C914

C916

C918

C920

C922

C923

C927

C929

C931

C933

C935

C937

C939

C966

5VTXO

RXEO

RXEI

TXI

OPT6

OPT1

OPT2

DGND

AGND

POW

OPT9

OPT8

OPT11

OPT7

OPT5

OPT4

OPT3

OPT10

DTI

J79-0128-19 B/2

1PTT

Side_GSide_1Side_2

GND

5

1LE

D_G

LED

_R/S

AV

E/5T

CS

BC

TV

2T

V1

5RC

GN

DG

ND

GN

DN

C+B+BN

CP

TT

Sid

e_1S

DO

1/P

CS

_RF

AP

CV

CO

_MO

DP

LDS

CK

1S

_DE

TN

C

/EM

GIFC

I2CC

KI2C

SD

A/T

_RA

SS

IST

VAG

CT

CX

O_M

OD

RS

SI

CV

NC

+B+BN

CG

ND

Sid

e_GW

/NS

ide_2

/DS

W/A

PC

SW

TH

PR

FAG

CG

ND

GN

DIF_D

ET

4950 2

+

S

TX-RX UNIT (X57-7370-10) (A/2)


PC BOARD NX-300

TX-RX UNIT

(X57-7370-10) (B/2)

Component side

Foil side


70

JIHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

134 5

GG

D

DS

S

1

3 4

5

G

SG

D

GD

S

CN600

C802

C803

C804 C807

C654

C850

C662

C663

C664

C665C668

Q705

L7

L714

L716

L717

L721

L722

L725

R912

R915

R917

R919

R7R753

R757R759

R760

R761

R768

R769

R770

R771

R772

R773

R775

R777

R778

R779

C741

C742

R780

R784

R786

C944

C

R790

R791

C758

D702D703

D704

C765

D705

C768

C769

D709

D710

C771

D711

C773

C775

C776C778

L612

C780

L614

C782

IC703

C786

C788

C791

C796

C798

C800

C801

C809

C810

C811

R663

R665

R666

R667

C647

C650

C652

C849

C660

C661

C666

D606

C667

D607

C669

Q706

Q903

L713

L715

L720

L723

L726

R929

C901

CN

737

R762

R765

R774

R781

R783

R785

R788

R799

C952 C

954

C764

D706

C767

D708

C770

C965

C772

C774

C968

C777

C779

C970

L613

C975

C783

C784

C785

C789

IC903

C794

C795

C799

L611

J79-0128-19 B/2

TXD1 RXD1

12

25OPT626 POW

RXEITXI

TXORXEO

OPT7OPT2

OPT8OPT11

OPT9DTI

AGND5V

NCNC

DGNDAGND

OPT10OPT5

NCOPT4

26P_RD26P_TD

OPT1OPT3

+

S

NX-300 PC BOARD

TX-RX UNIT (X57-7370-10) (A/2)

Foil side view (J79-0128-19 A/2)

TX-RX UNIT

(X57-7370-10) (B/2)

Component side

Foil side


71

J K L M N O P Q R S

1

2

3

4

5

6

7

8

9

10

11

12

13

14

G

SG

D

D

S

G

D

GS

S

G

DS

G

DS

GD

S

G GD

DS

SR604

R605

R606

CF700

R612

R616

R617

R618

R622

C603

C604

C605

R646

C610

C611

C612

C615

C617

C618

C621

C632C635

C642

C643C645

C648

D600

Q703

Q510

Q511

C671

L508

L703

L704

L705

L706

L707

L708

L518

L519

L710

C689

L711

L521

L522

L523

C690

L524C691

L527

XF700

R728

R730

L780

R542

R737

R544R545

R739

C701

C704

R742

C706

C707

R744

R747

R749R752R753

C719

R568

C725

C737

C738C739

C547

C548

C741

42

C743

C744

C745

C746

C748

C556

C557

C750

C751

C752

C753

C758

Q600

C565

C566

C567

Q603

C568

Q606

65

C573

C575

D515

C576

D517

C578

L600

C579

L602

L604

C580

C581C583

C587

L610

L615

C647

C650

C652

L709

CN

702B

PF

CN

902

R740

R743

R745R

746R

748R

750

C747

C749

C754

C755

C756

C764

R620

R623

R624

R626

R627

R630

R631

R632R

634

R636

R639

R644

C613

R650

C614

C623

C625

C627

C629

C634

C639

C670

Q601

Q602

L603

L605

L606

L607L609

R609

R610

R628

C619

D601

Q700

Q701

L701R

701

R702

R710

R733

C700

C708

C712C

715

C718

C721

R571

C730

C732

C733

C734

C740

C790

R607

R608

C607

Q508 Q

509Q

512L509

L514

L515

L516

L517L520

L525

L526

L528

R543

R558

R559

R560

R561

R562

R563

R564R

565

R575

R576

C546

R599

D506 D

507

C570

D510

C571

D511

C574

D514 D

516

C577

D519

C582

C584

C585

C586

C588

J79-0128-19 A/2

+

S

D G

TX-RX UNIT (X57-7370-10) (A/2)


PC BOARD NX-300

Ref. No. Address

IC703 8H

IC903 7D

Q508 5P

Q509 6Q

Q510 7R

Q511 6R

Q512 7Q

Ref. No. Address

Q600 7P

Q601 7N

Q602 6N

Q603 4N

Q606 4L

Q700 9R

Q701 10O

Ref. No. Address

Q703 9K

Q705 10F

Q706 10E

Q903 8D

D506 4P

D507 4Q

D510 4Q

Ref. No. Address

D511 4R

D514 4Q

D515 4P

D516 4R

D517 4R

D519 5R

D600 7M

Ref. No. Address

D601 8O

D606 5H

D607 5G

D702 10I

D703 10I

D704 10H

D705 10E

Ref. No. Address

D706 8E

D708 8E

D709 6G

D710 7E

D711 6F

72

NX-300 SCHEMATIC DIAGRAM

4.92V

-7.24V

3.28V

-7.13V

-9.74V

A

AA

AA AA A

A A

A

A

A

A

A

A

A

B30

-221

5-05

2SC4617(S)Q2

2SA1362-F(GR)Q1

SSM3K15TE(F)

MA

2S11

1-F

D11

Q3

150

R40

2

150

1uC11

470p

C12

330

R16

0

R17

0

R15

4.7k

R14

D4

D3

C10

0.1u

R40

4D

8D

7

LCD BACKLIGHT

2SC4617(S)

SSM3K15TE(F)

12KEY BACKLIGHT

∗ R40

5∗ D

10∗ D

9

∗ D5

∗ D6B30

-221

5-05

∗ R40

3

1.5k

MA

2S11

1-F

∗ C10

8

A

0.1u ∗ C

114

1u

4.7k

∗ R10

6

A

∗Q103

2SA1832(GR)F

∗ D10

1

1.5k ∗Q102

∗Q101

330

470p

∗C115

0

∗R114 ∗R117

∗R112

0

∗ D2

∗ D1

1.5k

∗ R40

1

470k

∗ R10

8

Sid

e_G

S13

6_K

EY

O2

S10

98

S7

7

S4

6_K

EY

O1

6_K

EY

O0

S6

54

S3 S9

6

S12

0

S5

21

S2 S8

3

S11

Sid

e_2

Sid

e_1

6_/K

EY

I16_

/KE

YI0

470

R414

470

R415

470

R416

470

R144

470

R418

D40

11S

S38

8F

1SS

388F

D40

2

1SS

388F

D40

3

1SS

388F

D40

4

R417 0

R410 470

R411 470

R412 470

R413 470

/KEYI4

/KEYI3

/KEYI2

/KEYI1

/KEYI0

KEYO3

KEYO2

KEYO1

KEYO0

BLC

F6

F5

F4

F3

F2

F1

E6

E5

E4

E3

E2

E1

D6

D5

D4

D3

D2

D1

C6

C5

C4

C3

C2

C1

A1

A2

A3

A4

A5

A6 B1

B2

B3

B4

B5

B6

G1

G2

G3

G4

G5

G6

H1

H2

H3

H4

H5

H6

NC

DQ

14

DQ

12

DQ

10

DQ

8

CE

A16

DQ

7

DQ

5

DQ

2

DQ

0

A0

A15

A11

A19

A20

A5

A1

A14

A10

A21

A18

A6

A2

A3

A7

RY

/BY

WE

A9

A13

A4

A17

WP

/AC

C

RE

SE

T

A8

A12

oE

DQ9

DQ11

VCC

DQ13

DQ15

VSS1

DQ1

DQ3

DQ4

DQ6

VSS2

IC101

FLASH

D9

D11

D13

D15

D1

D3

D4

D6

C105

0.01u

1000

p

C11

0

C106

1u

D

D14

D12

D10 D8

D7

D5

D2

D0

A2

A6

A18

A10

A14

A1

A5

A20

A19

A11

A15

A0

A16

/RD

/CS

0

CN

103

A3

A7

A9

A13 A4

A17 A8

A12

/FR

ST

/WP

/WR

L717

SRAM

IC103

G3

G2

G1

F6

F4

F3

F1

E6

E1

D6

D1

C6

C4

C3

C1

B6

B5

B4

A1

A2

A3

A4

A5

A6 B1

B2

B3

G4

G5

G6

H1

H2

H3

H4

H5

H6

CE oE

DQ

7

DQ

2

NC

3

NC

2

DQ

6

VS

S2

VC

C2

VCC1

VSS1

DQ1

A5

NC1

DQ5

DQ0

A7

A4

A0

A1

CE

2

A3

A6

A8

DQ

4

A2

WE

A16

A15

DQ3

A9

A10

A11

A12

A13

A14

470k

R12

0

1u

C118

L710

A14

A13

A12

A11

A10

A9

A15

A16

A0

A1

A3

A6

A8

A2

A5

A7

A4

D0

D5

D4

D1

D6

D2

D7

/RD

/CS

2

D3

/WR

20V

5

19V

4

18V

3

17V

2

16V

1

15V

DD

14V

SS

13V

DD

12D

7

11D

6

10D

5

9D

4

8

D0

7

D3

6

D2

5

D1

4/W

R

3A

0

2/R

ES

1/C

S

CN1

LCD

11

12

13

14

15

16

17

18

19

20

B8

B7

B6

B5

B4

B3

B2

B1

oE

VCC

10

9

8

7

6

5

4

3

2

1

GND

A8

A7

A6

A5

A4

A3

A2

A1

DIR

IC401TC74LCX245FK

VCC

6

G

B1

8

7

B25

3

1

2

DIR

A1

A2

4GND

TC7WZ245FK-FIC402

L707

10k

R407

10k

R408

0.1u

C402

0

R406

100k

R11

220p

C40

D7

D6

D5

D4

D3

D2

D1

D0

0.1u

C401

C5

1u

C6

1u

C1

0.1

u

C2

1u

C3

1u

C4

1u

0.1uC7

R12

10

k

R10

10

k

R6

10k

R7

10k

R8

10k

R9

10k

R4

10k

R5

10k

/LCDRST

/CS4

/WR

100k -tTH

1

2.2u16

+

C403

2.2u

16C

404

+

+

C4052.2u16

0.1uC8

1000

p

C40

7

1000

p

C40

8

47

R409

100p

C41

12k

R3

100k

R2

1M

R1

1uC

406

IC403LM2682MMX

IC1LMC7101BIM5

1

2

3

4

C1-

C2+

C2-

VoUT

8

7

6

5

NC

C1+

VIN

GND

4

5 V-

INPUT-

5

3

OUTPUT

V+

INPUT+

1

2

BL_

SB

33M A0

D

D

D

33M

33M

5A

SB2

31BU

LCONT

RESET

LCD CONTRAST

DOUBLINGVOLTAGE

INVERTER

BUS SW

IC401,402

12KEY BACKLIGHT SW

LCD BACKLIGHT SW

D11,Q1-3

D101,Q101-103

12KEYCONTROL

D401-404

X53-4260-XX-10-11 SSM3K15TE(F)2SA1832(GR)F

D101D1NONOK

MA2S111-FB30-2215-05K3

Q103NO

Q102NO

2SC4617(S)

Q101NO NO

R117

0NO

R114

330NO

R112

0NO

R108

470k

R106NO4.7k

C115NO

470p

C114NO1u

NOC108

0.1uNO

R401

1.5k

R403 R405NO1.5k

NO1.5kB30-2215-05

NOD2

B30-2215-05NOD5

B30-2215-05NOD6

B30-2215-05NOD9

B30-2215-05NOD10


6

5

5

5

5

5

56

6

6

6

6

6

6

6

77

7

7

7

7

7

58

8

9

9

9

A B C D E

1

2

3

4

5

6

7

X53-426 1/10

SCHEMATIC DIAGRAM NX-300F G H I J

X53-426 2/10

A

R12

1

100k

R10

2

5 12347 69 81012 111620 19 18 17 15 14 13

CN701

R71

1

R71

3

R71

4

R71

5

R71

2

R71

0

R70

1

R70

2

R70

3

R70

4

R70

5

R70

6

R70

7

R70

9

BF

SR

2

BD

R2

/SC

SS

BC

LKR

2

BD

X2

BC

LKX

2

INT

3

RX

D0

SC

TX

D

R11

5 1

00k

R11

8 4

7k

R11

1 1

00k

R11

3 1

00k

R11

6 4

7k

B12

B13

C11

C12

C13

D11

D12

D13

E10

E11

E12

E13

F10

F11

F12

F13

G10

G11

G13

G12

H13

H12

H11

H10

J13

J12

J11

J10

K13

K12

K11

K10

L13

L12

M13

N13

M12

N12

L11

M11

N11

L10

M10

N10

K9

L9

M9

N9

K8

L8

M8

N8

K7

L7

N7

M7

N6

M6

L6

K6

N5

M5

L5

K5

N4

M4

L4

K4

N3

M3

N2

N1

A1

B1

C2 C1

D4

D3

D2 D1

E4

E3

E2 E1

F4 F3

F2 F1

G2 G1

G3

G4 H1

H2

H3

H4 J1 J2 J3 J4 K1

K2

K3 L1 L2 L3 M1

M2

A13

A12

B11

A11

D10

C10

B10

A10

D9

C9

B9

A9

D8

C8

B8

A8

B7

A7

C7

D7

A6

B6

C6

D6

A5

B5

C5

D5

A4

B4

C4

A3

B3

C3

A2

B2

A18

A17

DV

SS

4

A16 D5

D4

D3

D2 D1

D0

RS

X2_

CLK

IN X1

HD

3

CLK

oUT

DV

SS

3

HP

IEN

A

CV

DD

3

CV

SS

5

TM

S

TC

K

TR

ST

TD

I

TD

o

EM

U1

oFF

EM

U0

ToU

T

HD

2

HP

I16

CLK

MD

3

CLK

MD

2

CLK

MD

1

DV

SS

2

DV

DD

3

BD

X1

BF

SX

1

DVSS7

BCLKX1

CVSS8

HD1

CVDD5

INT3

INT2

INT1

INT0

NMI

HBIL

IACK

BDX2

BDX0

HD0

DVSS6

DVDD4

HRDY

BFSX2

BFSX0

CVDD4

HINT

CVSS7

BCLKX2

BCLKX0

BDR2

HCNTL1

BDR0

BFSR2

BFSR0

BCLKR2

BCLKR0

DVSS5

HCNTL0

BCLKR1

CVSS6

CV

SS

1

A22

CV

SS

2

DV

DD

1

A10

HD

7

A11

A12

A13

A14

A15

CV

DD

1

HA

S

DV

SS

1

CV

SS

3

CV

DD

2

HC

S

HR

_W

RE

AD

Y

PS

DS

IS R_W

MS

TR

B

IoS

TR

B

MS

C

XF

HoL

DA

IAQ

HoL

D

BIo

MP

_MC

DV

DD

2

CV

SS

4

BD

R1

BF

SR

1

A19

A20

CVSS9

DVDD5

D6

D7

D8

D9

D10

D11

D12

HD4

D13

D14

D15

HD5

CVDD6

CVSS10

HDS1

DVSS8

HDS2

DVDD6

A0

A1

A2

A3

HD6

A4

A5

A6

A7

A8

A9

CVDD7

A21

DVSS9

IC102

1000

p

100k

R10

7

1k

R10

3

0.1u

C11

7

L711

0.1u

C11

3

D

D6

CN102

D7

D8

D9

D10

D11

D12

D13

D14

D15

D5

D4

D3

D2

D1

D0

A17A16

A0

A1

A2

A3

A4

A5

A6

A7

A8

A9

CN101

/RD

/HDS2

0.1u

C101

0.1u

C102

470k

R10

1

0.1u

C103

0.1u

C104

470k

C10

9

0.1u

C10

7

0.1u

C11

1

0.1u

C11

2

100k

R11

0

100k

R11

9

100k

R12

2

100k

R12

3

0.1u

C11

6

100k

R10

5

A10

A11

A12

A13

A14

A15

/WR

/CS

3

DSP

R141 100k

R142 100k

R143 100k

R145 100k

R146 100k

R147 100k

R193 100k

R194 100k

L712

R126 100

R127 0

R128 0

C119 1u

R135 100k

R136 100k

R137 100k

R129 100

R130 100

R131 100

C120 0.1u

R150 1k

100k

R139

0

R140100k

R132

C121 0.1u

BCLKR2

/MCCSAF

MCDOAF

/MCCSRCN

BFSR2

MCDOCN

BDR2

BCLKX2

/MCCSXCN

MCDICN

BDX2

INT3

MCSCKAF

FSDET

/DINT

/SYMTIM

/DWUP

/HR

DY

MCDIAF

33M

15M

0 0

0

00000000000

BF

SX

2

BD

X2

BC

LKX

2

BER_EN

/DR

ST

33M

SC

TAM

I

LCONT

RESET

RESET

LCONT

5RC

BCLKR0

BCLKX0

HD0

HD2

X2_CLKIN

D

33M

5

5

5 5

5

5

6 6 6

6

6

7

7

7

77

8 889 9 9

11

11

11

12

12

12

1313 13



K L M N O

X53-426 3/10

9.5mV

3.282V

3.28V

A

A

L708

0

R716

PT

T2

CN

702

PT

T1

CN

703

CN

704

RS

SI

CN

705

DO

WN

CN

706

GN

D

CN

708

RX

D

CN

707

TX

D

INA

INB

GND

1

2

3

VCC

oUTY

5

4

IC104TC7SH08FU-F

100k

R13

3

L709

150

R14

8

0.01u

C123

VSS5 6

INTRA

4INTRB

CLKC7

3SDA

OSCOUT8

2SCL OSCIN

9

132KOUT VDD

10

RV5C386AIC106

X10

1

I2C

CK

I2C

SD

A

RTC

0.1u

C159 47k

R138

VoUT

CD

4

3

VIN

VSS

1

2

XC6109C29ANNIC105

0

R1490.01

u

C12

4

0.01u

C122

RESET

D

D

D

4

XTN6

5Q

VDD

1

2

3

INHN

XT

VSS

IC107SM5023CNDH-G

D

D

100k

R16

6

C13

4

1kR165

0.01u

C130

470k

R162

22

R15

9

L713

VCC4 1

VC

18.432MHz

oUTPUT3 2

GNDD

D

0.01

u

D5

J4 F3

R14 A

9

C10 V4

U5

T6

V5

U4

T4

V6

U7 T8

V7

U6

T5

G3 H1

A4

B4

A10

A12

B11

A11

H18

J18

K18

L18

M18

N18

J17

K17

M17

N17

P17

K16

L16

M16

P16

J15

K15

M15

N15

P15

J16

H15

G17

H16

G15

F18

F17

G16

E18

E17

F16

D18

D17

B15

D16

C15

D15

E15

A15

A16

B14

C14

A13

D13

C13

B13

A14

B12

D14

R18

T18

R16

R15

U15

T15

V15

V14

T14

IFIR

MIC

IR

AD

C1

RX

D3

SC

K

SD

T

SP

CK

0

SP

I0

SP

o0

SP

CS

00

SP

CS

01

SP

CS

02

SP

CK

1

SP

I1

SP

o1

SP

CS

10

SP

CS

11

SP

CS

12

AD

C4

AD

C5

XTALI

XTALo

32I

DSPCK

CKo

USRCKI

ADD0

ADD1

ADD2

ADD3

ADD4

ADD5

ADD6

ADD7

ADD8

ADD9

ADD10

ADD11

ADD12

ADD13

ADD14

ADD15

ADD16

ADD17

ADD18

ADD19

ADD20

ADD21

DT0

DT1

DT2

DT3

DT4

DT5

DT6

DT7

DT8

DT9

DT10

DT11

DT12

DT13

DT14

DT15

WRITE

READ

BHE

BLE

CS4

CS3

CS2

CS1

CS0

HRADY

HDS2

TXD0

RXD0

RTS0

CTS0

TXD1

RXD1

TXD2

RXD2

TXD3

CN104

22

R158

/RINT

32K

A20

A19

A18

A17

A16

A15

A14

A13

A12

A11

A10

A9

A8

A7

A6

A5

A4

A3

A2

A1

A0

CN106

D15

D14

D13

D12

D11

D10

D9

D8

D7

D6

D5

D4

D3

D2

D1

D0

/WR

/RD

/CS4

/CS3

/CS2

/CS0

/HRDY

/HDS2

CN105

TXD0

RXD0

RTS0

CTS0

AMT

/OINT

RXD2

26P_TD

LED_G

LED_R

100k

R154

R155 47k

R156 4.7k

R157 4.7k

R16

0

R16

1I2

CS

DA

I2C

CK

R153

100k

I2CSDAI2CCK

RX

D3

SC

K0

TON

ES

W

SD

O0

/EV

CS

ST

SW

/WP S

CK

1

SD

O1

0

R41

9W

_/N

CV

S_D

ET

C16

0 6

800p

R16

3 1

00k

33M

32K

/RINT

32K

MC

SC

KC

N

31B

U

33M

5RC

/PTT/PTT

RSSI

MA

N

ASQDETAUD_IREFC

AD12_IREFF

/MNDNU

33A-1

33MAS

RXD

TXD

00

LCONT

RESET

SPCS10

RESET

LCONT

5RC

BCLKR0

BCLKX0

HD0

HD2

X2_CLKIN

HD2

GPIo7

BUFFER

2 INPUTAND GATE

33M

3276

8Hz

X102

5

5 5

6

6

6 6

6

7 7

7

7

7

8

8

8 8

9

9

9 9

11 11

11

11 11

12 12

12

12 12

13

13

13 13

1414

14

14

14

1515

15

15

1616

16

1818

18

18

18


SCHEMATIC DIAGRAM NX-300P Q R S T

X53-426 4/10

A

A

T1

N4

T17

T16

R13

F15

C18

C16

D6

D4

B16

C5

C3

A3

V2

V1

U2

U1

V18

V17

U18

U17

B18

B17

A18

A17

B2

B1

A2

A1

E6

L1 K5

J5 H5

G5

F5

E5

U3

M1

L3 K4

T3

H4

G4

F4

V16

E4

D3

U16

C17

T2

C4

A5

B3

P7

P8

P12

P13

K14

J14

H2

H3 J1 J2 J3 K1

K2

K3

L2 T10 R9

V11

U10 T11

V12 U11

T12

V13

U12 V

8

R12 R11

T13

U14

U13

H17

E16

P18

R17

G18

L17

N16 L15

V3

C2 F1

F2 E1

G2 G1

D2

E2

E3 D1

R10R4

P4

NC

30

NC

29

NC

28

NC

27

NC

26

NC

25

NC

24

NC

23

NC

22

NC

21

NC

20

NC

19

NC

18

NC

17

NC

16

NC

15

NC

14

NC

13

NC

12

NC

11

NC

10

NC

9

NC

8

NC

7

NC

6

NC

5

NC

4

NC

3

NC

2

NC

1

AG

ND

9

AG

ND

8

AG

ND

7

AG

ND

6

AG

ND

5

AG

ND

4

AG

ND

3

AG

ND

2

NC

34

AV

CC

10

AV

CC

9

AV

CC

8

NC

35

AV

CC

6

AV

CC

5

AV

CC

4

NC

36

AV

CC

2

AV

CC

1

DG

ND

15

DG

ND

14

DG

ND

13

DG

ND

12

DG

ND

11

DG

ND

10

DG

ND

9

DG

ND

8

DG

ND

7

DG

ND

6

DG

ND

5

DG

ND

4

AD

C6

AD

C7

AD

C8

AD

C9

MIC

VR

SP

DA

C

MIC

AD

C0

MoD

DA

C

MIC

AD

C1

KE

YI0

KE

YI1

KE

YI2

KE

YI3

KE

YI4

KE

Yo0

KE

Yo1

KE

Yo2

KE

Yo3

KE

Yo4

PW

M1

PW

M2

TI

TD

I

TM

S

TD

o

TC

K

TR

ST

RT

CK

BS

CA

N0

BS

CA

N1

RS

T

RS

To

TE

ST

0

TE

ST

1

TE

ST

2

TE

ST

3

Boo

T

SQ

DA

C

AD

C0

DA

C0

IFR

AD

C3

AD

C2

FC

DA

DC

IFA

DC

P

IFA

DC

N

IFV

R

A

VO

X

VO

L

BAT

T

C13

1 0

.1u

C13

3 1

0u6.

3

+R

XA

F

MIC

MO

D

PF

KE

Y

A

NC

/KE

YI0

/KE

YI1

/KE

YI2

/KE

YI3

/KE

YI4

/KE

YO

0

/KE

YO

1

/KE

YO

2

/KE

YO

3

BE

EP

TON

E

32K

1k

R16

7

1000

p

C13

5

0R

168

/FR

ST

D

D

AS

QA

PC

RS

SI

RFA

GC

VA

GC

TH

P

AS

SIS

T 10u6

.3C

142 +

0.1u

C14

0

100k

R46

3

3p

C42

8

68k

R470

A A

10k

R17

0

6800

p

C16

1

IC108

33A-1 33A-1

33MAS33MAS

BLC

SPCS10 SPCS10

BLC

RESET

HD2 HD2

GPIo7 GPIo7

IFADCN

ASIC

33A-1

7 77

8

8

9 9 9

11 11 11

12 12 12

13 13 13

14 141415 15

15 15

16 16 16

171717

17

18 18 18



A

A

A

A

A

GN

D3

oUT

Y4

INA

TC7SH08FU-F

1 2IN

BV

CC

5IC109

D0.

01u

C15

8

L705

E12

E11

E10

L5

P6

P11

L14

H14

E13

E7

M5

N5

P9

P10

N14

M14

G14

F14

E9

E8

B5

C6

B6

A6

U8

R8

R7

T7

V10

U9

V9

T9

C11

D12

C12

R5

R6

R2

P3

P2

M4

R1

N3

N2

P1

L4

M2

M3

N1

D8

D7

C7

D10

C8

D9

B7

C9

B8

A7

B10

B9

D11

A8

R3

DGND3

DGND2

DGND1

DVDIo7

DVDIo6

DVDIo5

DVDIo4

DVDIo3

DVDIo2

DVDIo1

DVDD10

DVDD9

DVDD8

DVDD7

DVDD6

DVDD5

DVDD4

DVDD3

DVDD2

DVDD1

GPIo11

GPIo10

GPIo9

GPIo8

GPIo7

GPIo6

GPIo5

GPIo4

GPIo3

GPIo2

GPIo1

GPIo0

SIMRST

SIMCK

SIMDT

SYMTIM

FSDET

TXRVE

TRAMP

TMoD

PSTPA

PSTIF

PSTPLL

RXRVE

RXSLT

PSRRF

PSRIF

PSRPLL

RSSIT

VFRM

VoINT

MCo2

MCCS2

MCCK2

MCCR1

MCCX1

MCo1

MCI1

MCCK1

MCCS0

MCo0

MCI0

MCCK0

AGCDAC

A

MCSCKAF

MCDIAF

MCDOAF

/MCCSAF

MCSCKCN

MCDICN

MCDOCN

/MCCSXCN

/MCCSRCN

100p

C14

1

R172 0

D

0

R173

470k

R19

1

470k

R18

2

R187

R18

0 10

0k

R18

3 10

0k

R18

5 1M

D

/SCSW

D

/UDET

/EMG

PLDPLD

/DINT

/DWUP

/DRST

/LCDRST

D

IFC

5RC

T_/R

/SAVE

0

R171

MM

/APCSW

DSW

/5TC

100k

R18

9

47k

R18

4

47k

R18

6

47k

R18

8

FSDET

/SYMTIM1k

R190

1000

p

C15

6

1000

p

C15

7

1k

R192/MNDNU

ENC1

ENC2

ENC3

ENC4

C14

9 0

.01u

C14

8 0

.1u

C14

4 1

u

C14

3 0

.01u

C14

5 0

.1u

C14

6 0

.1u

C14

7 0

.1u

C15

4 0

.1u

C15

0 1

u

C15

1 0

.1u

C15

2 0

.1u

C15

3 0

.1u

C15

5 0

.1u

DSR

5UC

EXAMT

INAMT

DD

D

D

D

100k

R174

R175 100k

R176 100k

R177 100k

R178 100k

R181 100k

1k

C13

6 0

.01u

C13

7 1

u

C13

8 0

.1u

C13

9 0

.1u

L714

L715

L716

2.2k

R501

L403

1CN403

2

3

4

5

6

7

8

9

10

C459

470p

2.2k

R506

1k

R5091k

R510

1k

R508

1k

R507

1k

R504

VOL

ENC3

ENC4

ENC1

ENC2

A

470p

470p

C46

3

C45

7

470p

A A

C46

2

470p

C45

5

A

A

C45

6

470p

470p

6800p

C460

C461

7

8

9

6

5

4

1

2

3

CHANNEL SELECTORS1

POWER SW/AF VOLVR1

L101

L102

D

12 11 10 9 8 7 6 5 4 3 2 1

VIN

4

VoU

T4

VoU

T3

VIN

3 DI

CLK LD

VD

D

VIN

2

VoU

T2

VoU

T1

VIN

1

13 14 15 16 17 18 19 20 21 22 23 24

VIN

5

VoU

T5

VoU

T6

VIN

6

D0

VD

AR

EF

RE

SE

T

GN

D

VIN

7

VoU

T7

VoU

T8

VIN

8

M62364FP-FIC703

R75

2 1

00

R75

6 1

00

R75

9 1

00

R42

7 0

R42

8 0

0R

429

0

R74

0

SD

O0

SC

K0

/EV

CS

VC

O_M

OD

TV

1

TV

2

TC

XO

_MO

D

1000

p

C73

8

C74

0 1

000p

C74

3 1

u

SB1

+B

EN2

EN1

EN4

AGND

EN3

VOL

VOL_GND

33A

33A-1

33M

33MAS

33A

15M

/PSW

/BINT

SBC

+B

SB

1

33A

BAT

TB

ATT

33A

33M

/PC

S_R

F

1SS416

D102

LCONT

BLC

SPCS10

HD2

GPIo7

18

2324

IFADCN

IFADCN

AND GATE2 INPUT

REVERSECURRENTPREVENTION

CONVERTERD/A

D

VOL SW/ENC

33A-1

7

7

9 99

11

11

12

12

12

13 13 13

14 14

14

14

14

14

15

15

15

15

15

15 15

16 1616

16

16

14

14

17

17

17

17

17

18 18

18

19

19

19

19

20

20

21

21

21

U V W X Y

X53-426 5/10


SCHEMATIC DIAGRAM NX-300

A

A

A

A

A

A AA

A

A

A

A

A

A

A

A

R748

10k

470k

R74

1 0.1u

C719

33k

R747

10k

R74

3

82k

R739

680p

C716

27p

C70

7

1000p

C734

15k

R77

1

33k

R77

847p

C804

6.8k

R78

5

1kR790

ASQAPC

2SA1832(GR)FQ701

ASQDET

PLD

OPT10

TC75W51FK(F)IC702

0.1uC723

68p

C70

6

0

R751

0

R850

82k

R736

3300p

C713

1000

p

C80

3

IN+

B

IN-B

oUT

B

VD

D

5 7 86V

SS

4

IN+

A

IN-A

oUTA

2 13

TC75W51FK(F)IC711

3 12

oUTA

IN-A

IN+

AIN

-B

oUT

B

VD

D

4V

SS

IN+

B6 875

R798 100k

10k

R803

C752 100p

C753 100p 330k

R799

0 01

u

C76

0

C755 47p

ASQ DET

SSM3K15TE(F)Q703

Q7042SC4617(S)

0.01

u

C80

2

0.22u

C771

1000

p

C76

80.

1u

C76

5

470

R80

8

1000pC764

330k

R809

3.3k

R81

0

D705RB706F-40

MA2S111-F

D702

10k

R819

39kR824

-t

100k

TH

701R82

1 1

00k

C78

0 0

.22u

180k

330k

R82

7

R82

6

oUT

VDD

TC75S51FE(F)

1

3

2VSS

IN-

IN+

IC704

4

5

A GND

TC7W53FK(F)IC707

5 4

VCC

CH0

CH1

8

7

6

CoMMoN

INH

VEE

1

2

3

0

R426

1200

p

C71

4

1u

C709

56k

R738

56k

R746

0.1u

C711

0.1u

C715

68k

R753 180p

C725

0

R766

0.1u

C726

47k

R7770.01u

C745

1k

R79

3

47k

R735

C71

2 330k

R765

0.1u

C727

C72

410k

R750

560k

R754

A

0.01

u

A

6.8k

R74

5

A

0.01

u

A

BEEP

RXEI

RXEO

RXAF

/SCSW

AMT

5

7

8

6IN+B VSS

4

IC713TC75W51FK(F)

VDD

oUTB

IN-B IN+A

IN-A

oUTA

2

1

310pC761

470k

R80

2

0

R80

4

470k

R800

0.1u

C756

100k

R81

5

1u

C778

100k

R818

0.01u

C779

1000p

C777RXAF SMF

RF AF SW

A:VREF/B:RX SUM

IC709TC7W53FK(F)

VCC1

CoMMoN

CH0

CH1

A

8

7

6

5GND

VEE

INH

4

3

2

SSM3K15TE(F)A

Q702

0.1u

C705

4.7k

R749

0.01u

C746

47k

R779

220k

R768

330k

330k

R770

0.01u

C732

0.01u

100k

R755

0.01u

C722

10k

R75

8

0.01

u

C71

7

10k

R742

15k

C71

0

47k

R733

0.1u

0.01u

C720

TONE

TONESW

STSW

OPT6

AO

AI

OPT9

C704 R769C731

0.01

u

R73

7

A1k

R797

47k

R805

47k

R806

82k

R81

1

1k

R807

560k

R814

0.01

u

C76

3

VGS REC SEL

SIDE TONE MUTE

1V

CC

CoM

MoN

234

INH

VE

E

GN

D5 6 7 8

A CH

1

CH

0

IC714TC7W53FK(F)

0.1u

C708

24 18

33A 5A

W_/

N

AP

C10

21

TXO

TXO

IFADCNIFADCN

SQL BPF/BPF/SQL DC AMP

APC LPF

OPT SW

NOISE AMPSQL

DETECTORNOISE

PLDCONTROL

RX SUMMING AMP1.65V REF/

SCSW(RXAF)

RX AF LPF

SMFAPC/ASQ

OPT SW

TONE SW

NOISE SWW/N

9 9 913 13 13

14

14

14

14

14

14

15

15 1515

16 1616

18 18 18

19 1919

20 2020

21 2121

22

22

2222

2323

23

23

23

Z AA AB AC AD

X53-426 6/10



R : 5.14V

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

DI

GND

2SB1132(Q,R)Q406

UMG3NQ407

Q405SSM6N16FE-F

D409

MA2S111-F

D410MA2S111-F

15k

R44

1

470k

R44

31k

R44

2

100k

R44

7

100k

R45

7

R46

2

1k

R459

0.1u

C42

5

0.1u

C42

9

22k

R47

2

0

R471

33k

R47

4

0.22u

C437

0.22u

C438

22k

R484

C440 0.1u

22k

R489

22k

R490

1k

TPA6201A1DRBRIC413

1

2

3

4

SHUTDoWN

BYPASS

IN+

IN-

8

7

6

5

Vo-

GND

VDD

Vo+

R496 100k

C44

5

1u

C44

9

100k

R495

1000

p

SHUTDoWN

BYPASSC439 0.1u

0.22u

0.22u

C436

C435

1

4

3

2

22k

22k

R488

R487

Vo-

Vo+

VDD

GND

IN-

IN+

100k

R494

8

5

6

7

TPA6201A1DRBRIC412

A

R497 100k

1000

p

C44

7

1u

C45

0

R47

50.

1u

C43

0

33k

IC408TC75S51FE( F)

IN+

IN-

VSS2

3

1VDD

oUT

5

4

8 7 6 5

VC

C

CoN

T1

oUT

_IN

2

IN_o

UT

2

1 2 3 4

IN_o

UT

1

oUT

_IN

1

CoN

T2

GN

D

IC409TC7W66FK-F

0.01

u

C42

0

0

R433

1k

R45

5

0.1u

C424

100k

R458

100k

R45

3

39k

R43

4

R446 270k

C422 10p

100k

R46

7

1k

R46

0

0.01

u

C42

7

SP DRIVE

DA221D707

RB706F-40D706

Q7062SA1832(GR)F

2SC4738(GR)FQ705

RB706F-40D703

D704RB706F-40

B : VOXA : MIC SUM1/

MIC AGC

SCSW(MIC)

MOD SMF

MIC AA

A : MOD SUM/B : MIC SUM26 875

3 12

oUTA

IN-A

IN+

AIN

-B

oUT

B

VD

D

TC

75W

51F

K(F

)IC

705

4V

SS

IN+

B

TC75W51FK(F)IC710

TC75S51FE(F)IC706

VSS1

3

2

IN-

IN+

oUT

VDD

4

5

IN/o

UT

VC

CIC71

2T

C7S

66F

UF

4 5

CoN

T

oUT

/IN13 2

GN

D

IN+VDD

IC715TC75S51FE(F)

4

5

oUT

VSS1

3

2

IN-

TC75W51FK(F)IC716

1500

p

C71

8

22k

R744

22k

R757

22k

R761

330p

C728

0.1u

C73

6

18kR775

6800

p

C73

9

0.1u

C799

0.1u

C721

1200p

C735

22k

R762

330p

C730

1500

pC

800

R764 22k

R763 22k

0

R78

6

100k

R784

47p

C74

9

100k

R79

4

33k

R796

4.7u

C758

4.7u

C757

0

R79

547p

C750

120k

R787

18k

R783

47k

R801

0.1u

C762

0.01

u

C75

9

0.1u

C76

6

0.1u

C76

7

1uC78

1

1u

C78

2

0.1u

C74

8

47k

R78

8

150k

R78

90.

1uC

747

100k

R78

2

100k

R78

00.

1uC

737

0

R44

0

0

R82

9

68k

R85

2

68k

R85

1

10k

R822

10k

R823

1M

15p 47k 0.1u 47k 1u

33k

R839

0.1u68k

0

R834

560k

R84

112k

R840

0.039u

C791

15k

R835

68p

C789

680k1u

C787

470k

R83

1

0R828

100k

10k

R82

0

47p

C775

68k

R816

0.22

u

C78

5

27k

R81

3

0.02

2u

C80

1

0.01u

C772

R767 10k

0.01

u

C74

4

0.01

u

C78

6

5.6k

R81

2

oUTA

IN+

B568 7

IN-B

oUT

B

VD

D

VS

S431 2

IN-A

IN+

A IN+

B

oUT

B

VD

D2

oUTA

1

VS

S43

IN-A

IN+

A

78 6 5IN

-B

CN711

CN712

R82

5 R833

R830

C788 R832 R836C790 C792

R837 C793

R838

560k 0.1u

DT

I

TX

I

C794

23

21

VO

X

MM

/SC

SW

33A

+B

33A

5A

INAMTEXAMT

TXO

IFADCN

MO

DM

IC

IFADCN

SP-

SP+

EXTSP+

EXTSP-

ME

MM

PGND

AUDIOAMP

AUDIOAMP

AF SW

AF AMP

VOLTAGE

(AF AMP)REGULATOR

Q406,407

AF AMP SW

Q405

LPFMODULATION

SUMMING AMPMOD/MIC

VOX AMP

VOX AMP

MIC AMP

MIC SW

DETECTOR

DETECTOR

SP CONTROL

VOX

DETECTOR

9 9913 13 13

14

15 1515

16 16 16

18 18 18

19 19 19

19

19

20

21 21 21

22 2222

14

23 23 23

AE AF AG AH AI

X53-426 7/10



5V

3.32V

A

A

A

A

A

A

A

A

A

A

A

A

A

D18

HZ

C6.

8-E

D19

R20 1k

R21 1.2k

R22 1k

R23 1k

R25 1.2k

R24 1k

R26 1k

L1

L2

100p

C16

100P

C17

470p

C13

470p

C14

0

R40

14CN23

13

12

11

10

9

8

7

6

5

4

3

2

1

6_/KEYI0

BL_SB

6_KEYO1

6_KEYO0

6_KEYO2

6_/KEYI1

A

CN22 CN24

MIC

SP

6KEY

6_/KEYI0

BL_SB

6_KEYO1

6_KEYO0

6_KEYO2

BL_SB

6_/KEYI1

SP-

SP-

SP+

SP+

EMC

ME

AGND

VoU

T

VIN

NJM

2880

U10

5ZB

1 32G

ND

NoI

SE

BY

PAS

S

CoN

TR

oLIC41

1

45

1SS416

D12

D14

1SS

416

1SS

416

D15

1SS

416

D13

1SS

416

D16

2

IC41

5T

C7S

ET

08F

U-F

INB

15

VC

C

GN

D

INA

34

oUT

Y

1SS416

D414

1SS

416

D41

5

Y2

Y1

TC

7WH

126F

KIC

417

A1

G1

321V

CC

G2

4A

2G

ND

8 7 6 5

10k

R503

1k

R54

7

100

R34

1k

R54

6

0.01u

C453

10k

R502

L3

RX

D0

RX

D0

/SC

SS

BF

SX

2

BE

R_E

N

DS

R

TX

D0

SC

TX

D

0.01

u

C45

2

100k

R49

1

47k

R500

0

R47

8

0

R46

8

47k

R48

3

0

R47

7

RT

S0

5UC

RX

D3

PF

KE

Y

/PT

T

/UD

ET

CT

S0

470

R19

8.2k

R18

1u

C44

6

1uC44

1

0.01

u

C44

3

SS

M6N

16F

E-F

Q41

1

TC7WH125FUF

2

1G1

A13

4Y2

GND

VCC8

IC418

G2

Y1

A2

7

6

5

BE

R_C

LK

BE

R_D

ATA

BE

R_E

N

0.01u

C464

DA

221

D23

D22

DA

221

D17

EM

Z6.

8N

C29

10

0p

C30

10

0p

C31

10

0p

C33

10

0p

C34

10

0p

C36

68

00p

C38

10

0p

1k

R28

1k

R29

100

R30

1k

R31

100

R32

L8

100

R35

100

R33

L7

L6

L5

L4

C23

10

00p

C28

10

0p

C24

10

00p

C25

10

00p

C26

10

00p

C27

10

00p

C32

10

0p

C35

10

00p

C37

10

00p

NN

CD

6.8G

-AD

21

NN

CD

6.8G

-AD

20

CN405

SSW1

2SP+

3SP-

4MSW

5EMC

6ME

7PTT

8PF

9OPT

10E

11

TXD12

RXD13

5V

14NC

UN

IVE

RS

AL

CO

NN

EC

TOR

TX

DR

XD

+B

R84

5

R84

7

1.8k

100k

R84

2

100k

C79

810

u10

470p

C15

0.1u

C79

6

A

AA

R843

1k

A

2SJ243-AQ707

4.7k

R84

4

AQ5

2SJ347F

Q4

100k

R27

1u

C797

SSM3K15TE(F)

0.01

u

C79

5

R846

470

+

33A

Side_1,Side_2,Side_G

5A33M

IFADCN IFADCN

SP-

SP+

EXTSP+

EXTSP-

ME

MM

MICMUTE

MICSHIFTSW

SHIFTMIC

CONTROL

REVERSECURRENT PREVENTION

D12-16

CONVERTERLEVEL

Q411

VOLTAGE REGULATOR (50U)

BUFFERDUAL BUS

IC417

ANDGATE

IC415

2 INPUTBUFFERDUAL BUS

RXD CONTROL

D22

D23

TXD CONTROL

CONTROLPTT RF OPT

CONTROLEMC MSW SSW

TX LED SWITCH

D414

RX LEDSWITCH

ABSORPTIONSURGE

ABSORPTIONSURGE

D17

D18,19

SWITCH UNIT (X41-3720-10)

9 9 913

13

15 1515

16

16

13

16

18 18 18

9

9

9

19 1919

21 21 21

23 23 23

X53-426 8/10

AJ AK AL AM AN



X53-426 9/10

AO AP AQ AR AS

3.284V

3.82V

1.5V 3.82V

3.82V

3.31V

3.82V

7.5V4.99V

7.55V

AA A

A

A

AA

A

A

A

A

R437

470

L701

IC701

18 17 16 15 14 13

12

11

10

9

8

7

1 2 3 4 5 6

19

20

21

22

23

24

A0

P17

P16

P15

P14

P13

P12

P11

P10

GND

P07

P06

P00

P01

P02

P03

P04

P05

SCL

SDA

VCC

INT

A1

A2A

100k

R71

7

L706

470

R730

1MR72

3

R72

4 1

00k

R72

6 1

00k

0.1u

C701

R72

8

1MR72

7

1M R73

2

R73

1

1MR72

9

1M 1M

OPT1OPT2OPT3OPT4OPT5OPT6

OPT7

OPT8

OPT11

26P_TD

26P_RD

R71

9 1

00k

R71

8 1

00k

R72

1 1

00k

R72

0 1

00k

R72

2 1

00k

I2SDA

I2CCK

26P

_TD

RX

D2

426P_TD

1OPT1

2

326P_RD

OPT3

9AGND

5

6

NC

OPT4

7

8

OPT10

OPT5

11

10AGND

AI

13

12

5V

AO

16

15

14

OPT9

AGND

DTI

17

18OPT11

OPT8

21

RXEO

20

19OPT7

OPT2

23

22

TXO

TXI

26

OPT6

24

25

RXEI

POW

CN710

OPT6

OPT7

OPT2

OPT8

OPT11

OPT5

OPT4

26P_TD

26P_RD

OPT3

OPT1

OPT6

TXI

RXEI

DTI

OPT9

CN709

A

OPT10

RXEO

TXO

AO

AI

C703

4.7u

F701

A

XC6204B332M

NC

5VOUT

4CE

VSS

VIN

3

2

1

IC4041SS388F

D4161u

C40

9

1u

C41

2

0.01

u

C46

7

47k

R548

L702X

C62

05B

152P

RN

VS

S

NC

2 3C

E

1V

oUT

VIN

5 4

IC40

51u

C41

0

10

R725

10u

C41

3

IC406XC6204B332M

C411

1u

4

5

NC

VOUT

C46

8

0.01

u

C41

4

A

3

2

1

CE

VSS

VINL704

R549

47k

1SS388F

D417

1u

LT1616ES6-PBF

GN

D

Boo

ST

2 3F

B

1S

W

VIN

SH

DN

6 5 4

IC407

HR

B05

02A

D40

6

22u

L401

D40

5

1SS

388F

C41

5

10u

68k

33k

R42

5 0.01

u

C41

8

470k

R43

14.

7u

L402

C41

6+

10u1

0

R42

4

C41

7

220p

C41

9

1

VIN

VoU

T

CE

32N

C

VS

S

5 4

XC6204B502PRIC708

1SS

301F

D70

1

1u

C74

2

470k

R79

1

1uC75

1

0

R43

2

SSM6N16FE-FQ402

100k

R438

100k

R439

470k

R45

2 470k

R456

R435

R436

100k

100kSSM6N16FE-F

Q401A

470k

R45

1 470k

R454

MA

2S11

1-F

D40

7

2SA1955A-FQ403

Q404SSM3K15TE(F)

SB2

6800

p

C42

1

470k

R45

0

150k

R44

5

560k

R44

4

10k

R44

8

470k

R44

9

BAT

T

R42

00

/OINT

10

IFADCN

IFADCN

15M

33A

5A

SB2S

BC

SBC

/BIN

T/P

SW

33M

SB

1

SB1

+B

33A

PG

ND

PGND

VOLTAGE DC/DC CONVERTER

D405,406,IC407

VOLTAGE REGULATOR (15M)

IC405

IC406

VOLTAGE REGULATOR (33A)


LEVEL CONVERTER

SB2 SW

SB2 SW CONTROL

CURRENTREVERSE

PREVENTION

33M

15M

33A

5A

I/O CONTROL

5A SW

1000

p

C47

0

L410

L409

1000

p

C46

9

+B

0.25A

33MCONTROLREGULATOR (33M)

CONTROL33A

9

9

9 99

15

15

15 1515

18

18

18

19

19

19 19

21

21

21 2121

23 23

23


81


6.05V

7.49V

7.49V

3.32V

3.32V

2.98V3.24V

3.32V

7.49V

1.33V

1.33V

7.46V

A

A

A

A

A

AA

A

A

A

A A

A A

A

∗R848

∗R849

Q408EMD12

D4081SS301F

1SS301FD412

Q4132SA1955A-F

Q412SSM3K15TE(F)

Q4092SA1955A-F

Q410SSM3K15TE(F)

D41

3

1SS

388F

D411

1SS416

470k

R49

2

10u

C43

1

10u

C43

3

1k

R47

9

10k

R48

5

1u

C44

8

10k

R46

1 470k

R46

4 10k

R466

10k

R465 470k

R469

470k

R48

1

3.3k

R47

3

0

R49

3

470p

C44

2

CN

401

NC

VIN

32

4V

SS

VoU

T1IC414

XC61CC5602NR

BATT INT

16

23

VIN

VoU

T4 5

VS

S

VIN

2

NC

oN/o

FF

S-812C31BPI-GIC416

1u

C454

CN402POWER SUPPLY

EMD12Q414

A

Q415EMD12

A

2

1

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

R511 1k

R512 100

R513 1k

R514 1k

R515 1k

R516 100

R517 1k

R518 100

R519 1k

R520 1k

R521 1k

R522 1k

R523 1k

R524 1k

R525 1k

R526 1k

R527 1k

R528 1k

TCXO_MOD

5RC

VAGC

TV1

ASSIST

TV2

T_/R

I2CSDA

/5TC

I2CCK

/SAVE

IFC

LED_R

/EMG

LED_G

RSSI

CV

1000p

C465

6800p

C466

AR529 100

R530 100

R531 100

R532 1k

R533 100

R534 100

R535 100

R536 1k

R537 1k

R538 1k

R539 1k

R540 1k

R541 100

R542 1k

R543 100

R544 1k

R545 100

/PTT

VCO_MOD

Side_G

Side_1

Side_2

W_/N

SDO1

/PCS_RF

DSW

/APCSW

THP

PLD

RFAGC

SCK1

S_DET

A

CN404

1 32

45

VIN

-

VD

D

VIN

+

VoU

T

VS

S

MCP6021-E/OTIC410

10

R486

0.01u

C432

27k

R480

33k

R49

80.

01u

C44

4

0.01

u

C43

4

10k

R48

2

0.01u

C451

22k

R49

9

/PCS_RF

IF_DETNC

GND

S_DET

GND

SCK1

RFAGC

PLD

THP

VCO_MOD

/APCSW

APC

/DSW

LED_R

PGND

NC

Side_2

SDO1

W_/N

Side_1

Side_G

PTT

AGND

NC

+B

+B

+B

+B

NC

NC

AGND

CV

RSSI

PGND

TCXO_MOD

5RC

VAGC

TV1

ASSIST

TV2

/T_R

SBC

I2CSDA

/5TC

I2CCK

/SAVE

IFC

LED_G

/EMG

APC

OPT713 AGND

OPT3

OPT1

2

3

1

26P_RD

OPT3

OPT1

4 26P_TD

26P RD

26P TD

oPT9

5V

RXEo

TXo

DTI

OPT9

RXEO

5V

TXO

10

11

9

NC

AGND

DGND

12 NC

DGND

AGND

OPT5

OPT46

7

5 NC

OPT10

OPT4OPT10

8 OPT5

oPT11

DTI

oPT8

oPT6

TXI

TXI

OPT11

OPT6

RXEI

RXEI

OPT8

oPT221 TXOTXO

OPT2

OPT8

OPT7

OPT9

DTI

5V

20

OPT7

18

16

19

17

OPT2

OPT8

OPT11

OPT9

14

15

DTI

5V

OPT11

oPT4

oPT5

oPT7

oPT1

OPT1

OPT4

OPT2

POWOPT5

POW

OPT6

POW26

24

25 OPT6

POW

RXEI

CN737

TXI

RXEO22

23

TXI

RXEORXEI

oPT10

oPT3

AGND

OPT10

AGND

OPT3

DGND

DGND

IFADCN

SBC

SB1

SCTAMI

31BU

+B

33A

PGND

RESET

DC SW

DC/DCCONVERTERCONTROL

D408

CONTROLDC SW

DC SW

Q412,413

REGULATORVOLTAGE

DC SW

CONTROLRTC BATT

CONTROLRTC BATT

D413

IF AMP

DC SW

NO-11 0K30-10 NOK

R848 R849X53-4260-XX

DC SW

TX-RX UNIT : OPTION BOARD SECTION (X57-7370-10) (B/2)

TX

-RX

UN

IT(X

57-7

370-

10)

(A/2

)-C

N90

0

9

9

9

15 15

15

15

21 21

21

X53-426 10/10, X57-737 (B/2) 1/1


AT AU AV AW AX

Note : The components marked with a dot ( ) are parts of layer 1.

82


X57-737 (A/2) 1/4

68u

L901

SSM6L05FU-F

1

3

2

C95

8C

957

470k

SSM6L05FU-F

GND48 R901

F900

IF_DET

470p

C90

0

1000

p

S

C90

2

50

49 NC

L900

D90

1

1SR

154-

400

47p

C942

C94

7

R9040

470p

0

0R907

R90

5

10

C94

8

1u33

C95

3C95

0

C94

9

1u

+

4.7u

16 R91

4

Q901SSM6L05FU-F

470k

R90

6

R91

0

R909

R913

1k

C95

410

00p

NC28C

952

0.22

u

VCO_MOD

/APCSW

APC

/DSW/DSW38

S_DET

SCK1

GND

PLD

RFAGC

VCO_MOD

THP

APC

/APCSW

43

47

46

45

44

42

41

40

39

C941 47p

C940 47p

C938 47p

C939 47p

C936 47p

C937 47p

C934 47p

C935 47p

C933 47p

/PCS_ RF

SDO1

Side_2

Side_1

W_/N

PTT

Side_G

GND

33

37

36

35

34

32

31

30

29 NC

C932 47p

C930 47p

C931 47p

C928 47p

C929 47p

/PCS_RF

Side_2

SDO1

Side_1

C926 47p

C927 47pSide_G

PTT

SCK1

PLD

R91

2

470k

R91

1

470k

HSC119D902

R908

47kC

951

0.22

u

R91

5

GND

GND

NC23

27

26

+B

+B

25

24

+B

+B

22

21

NC

20

19

CV

C925

47p

R432 0

C923 47p

C922 47p

R430

0

GND

RSSI

5RC

TCXO_MOD

TV1

VAGC

ASSIST

/T_R

TV2

SBC

18

17

16

15

14

13

12

11

10

9

C919 47p

C920 47P

C917 47p

C918 47p

R431 0

C916 47p

C914 47p

C915 47p

C912 47p

1000

p

C95

6

1000

p

C95

5

R91

7

63

CLK

CC/GAIN

0.1u

CE/SS

VIN4

150k

5

180p

C96

2

R92

3

R92

647

0p

C96

712

k

22k

VoUT/FB

VSS

XC9101D09AKR

LSEN

EXT1

2

IC901

C96

6

7

8

22p

R92

533

0k 1u

C97

2

1u

C97

3

C97

4

1u

1000

p

0.22

uC

9702

C96

8

R92

1

47k

1k

R919

1k

Q903

R91

6

470k

C97

7

0.47

u

Q902

R918

C96

9

2SA1955A-F

VSS

IN- oUT

IC900TC75S51FE(F)

IN+ VDD

R9224

R92

0

47k

C96

3

1u

1k

5

C96

1

470p

NP/VREF

R929

1k

oN/oFF

GND

3

Q905

4

C96

5

0.22

u

1000

p

C97

11u

R927

1k

C96

4

0.22

u

VoUT

TK71733SIC903

VIN1

1u

5

IC902TK11250CUCB

4

1u 5

6VoUT

GND

VIN3

GND

NP

CoNT

2

1

C94

6 4

7p

LED_R

I2CSDA

I2CCK

/5TC

IFC

/SAVE

/EMG

LED_G

8

7

6

5

4

CN900

3

1

2

C910 47p

C908 47p

C906 47p

C907 47p

C905 47p

C904 47p

Side_2

Side_1

Side_G

SIDE 2

SIDE 1

PTT GND

PTT

3

5

4

R928

S1

C97

6

47p

0

CN901

2

1

C94

5 4

7p

C94

3 4

7p

C91

3 4

7p

LR470p

R902

UMG9NC901

C944

470p

Q900

390

R900

R903

D900

10

LG

820

150C

IF_DET

W_/N

RSSI

VAGC

TV1

TV2

IFC

5RC

/5TC

SBC

/SAVE

/SAVE

SBC

IFC

5RC

/5TC

33C

50T

50R

50IF

/T_R

I2CCK

I2CSDA LED_R

LED_G

LED_R

LED_G

CV

TCXO_MOD

AS

SIS

T

PTT

Side_1

Side_G

Side_2

+B

TX/RX LEDTX/RX LEDSWITCH

VOLTAGEREGULATOR(50C)


50T CONTROL

50RSWITCH

50IFSWITCH

SB3SWITCH

Q904SSM5H01TU

CONVERTERSWITCH

DC/DC

Q904

CONVERTERDC/DC

50TSWITCH

Q905

REVERSEPROTECTION

50T CONTROL

D902

CN902

470p

C90

3

B30-2278-05

470k

470k

50C

2.5A

THP

T : 3.331VR : 3.276V

R : 7.478VT : 7.338V

T : 55.4mVR : 5.1mV

R : 7.494VT : 7.353V

T : 68.5mVR : 3.28V

T : 4.81VR : 5.5mV

R : 4.977VT : 5.038V T : 70mV

R : 0.314V

T : 4.25VR : 4.974V

T : 59.4mVR : 3.285V

T : 4.99VR : 4.35mV

T : 4.987VR : 4.974V

R : 3.27VT : 62.3mV

R : 100mVT : 6.38mV

R : 6.57VT : 79mV

R : 7.49VT : 7.26V

T : 5VR : 4.97V

T : 5VR : 4.97V R : 3.32V

T : 3.35V

R : 14.28VT : 14.32V

R : 7.23VT : 7.06V

T : 4.974V

1

1

2

2

3

3

4

4

4

(X41-3710-10)SWITCH UNIT

CO

NT

RO

L U

NIT

(X53

-426

0-X

X)-

CN

404

TX-RX UNIT (X57-7370-10) (A/2)

AY AZ BA BB BC


X57-737 (A/2) 2/4

R504100k

R50

5

C50

3

0.1u

R50

0

0.1u

C50

0

R50

1

C50

2

470p

2

100k

INPUT+

3

100k

V+

INPUT-

4

OUTPUT

LMC7101BIM5

1

IC501

TCXO MOD

19.2MHzX500

R502

V-

120k

5

0

R57

4C

506

10p

C50

9

10p

GND

LM73CIMKX-0

SMBCLK

SMBDAT

C50

1

VC

100p

6

5ALERT

4VDD

C50

5

VCC

oUTPUT

GND

ADDR1

2

100p

C50

8

0.01

u

4.7u

L500

10

C50

4

0.01

u

R503

10

IC500

3 R572

R54

8R

547

C55

4

R545

R544

C55

5

FvcoFin

C54

10.

047u

35

C53

50.

15u3

5

100p

100p

0

1u

2SC5383-T111

D50

1

C52

0

HS

C11

9

R51

5

4.7k

20

R511 10

47k

R50

6

C51110u

R512 10

R513 10

4.7k

R56

7

19L598

C51

6

VCCcp218

VC

C d

igita

l

C517 100p

C519 100p

Q503

VCC

2524232221

Clo

ck

/CS

Dat

a

GN

D

Max

out

Mod

in

100p

1

C522

R519

10

R53

3

180k

R52

0

1kC

529

3

2

C52

4

100p

100p

4

R53

4

47k

R566

470k

C54

2

10M

0.1u

R54

6

100k

LMC7101BIM5

1

IC503

5

C53

6

R52

3

C52

8

100p

C527

100p

1k

DA221

47p

R539

D505

C54

60

4700

p

R54

2

R53

6

0

R53

5

150

R543

0

0

11R

514

C515IC502

L599

0.01

uR

570

0 GN

D O

SC

13

/Fvco

CPout2

VCC cp2

LD/PS2

17

16

15

14

12

LD/PS1

VCCcp1

CPout1

/OS

C A

C G

ND

OS

Cou

t

VC

C S

OC

8

OS

C910

NC

7

6

/Fin2

3

4

5

C521

10

R532

C53

3

470p

R522

0.1u

C526

R527

+

0

C53

4

100p

+

0

R538

390

R53

1

68k

47k

R53

0 1k

L503

R54

1

10k

Q5042SK879-F (Y)

R52

9

1k

R537

CV

CN500

0

R576 D511L509L5

28

27n

C565C557

100k

Q5072SC5383-T111

APC

C600

100k

0.1u

C60

1

1u

100p

R60

0

1k

VSS

TC75W51FUF

47p

0

3

2

4

1

6

5

VDD

IC504

7

8

C60

2

0.1u

R60

3

2.2k

R60

1R

602

120k

18k

R670

220k

R55

7

HS

C11

9D

518

1.5k

C57

2

L517

1SV282-F

OP AMP(VCO MOD/APC)

C5621u R

554

R552270k

R55

5

470p

1SV

325F

D50

7C54

8

100p

220n

220n

L515

0

R59

9

47k

47k

27p

220n

D51

7

1SV

282-

F

D51

6

220n

L5191S

V28

2-F

C56

7

0.5p

C57

8

4.7u

L523

470k

1k

10u

R56

2

C58

4 47

0p

SSM6L05FU-F

R558

470k

C58

2

R568

470p

Q510 2SJ347F

R56

3

47k

Q511

C58

5

470p

100

R56

5

C58

7

470p

220n

C54

7

100p

1SV

325F

D50

6 L514

C556

470p220n

L508 R575

0

D51

4

1SV

282-

F

L518

1SV

282-

F

220n

L516

D51

5

TX VCO

C56

8

220n 0.5p

1SV282-F

D510

RX VCO

C566

56p

Q5122SC5636

R564

150k 7p

C586

10

0.1u

C523

C51

3

0.01

u

C518 100p/PCS_RF

PLDSCK1

SDO1

0.01uC51

2T

CX

O_M

OD

I2CSDA

I2CCK

50C/T R

33C

CV

10u2

0C

539 +

50C

AP

C

VC

O_M

OD

AS

SIS

T

150C

50IF

50R

50R

50IF

50T

50T

THP

19.2M

+B +B

33C

TEMP SENSOR

TCXO MODDC AMP for

PLL IC

BUFFER AMP

OSCILLATIONVCO

FREQUENCY CONTROL

D506,510,514,515

BUFFER AMP

SWITCHT/R

Q510,511

RIPPLE FILTER

FREQUENCY CONTROL

D507,511,516,517

MODULATIONTX

D519

RIPPLEFILTER

DC AMP for VCO TUNE

DIODEBYPASS

D505

FILTERRIPPLE

2SC5636Q505

12n

L504

L513

18n

150k

R55

027

0

R54

9

470p

C55

9

10p

C553

5p

C55

0

10R52

1

470p

C55

8

3p

C543

5p

C53

7

47p

C525

10p

C588

150C

0.01u

C514

Q5082SK508NV(K52)

L521

22n

220n

L522

5p

C573

4pC57

1

C57

55p

C57

7

470p

0.5p

C581

R560

22

L525

220n

R55

9

180

C57

4

2p

OSCILLATION

4pC

579

180

R56

1

470p

C58

0

18n

L520 5p

2SK508NV(K52)Q509

VCO

L524

220n C576

220n

L526

C583

0.5p

L527

D51

9

1SV

278F

C57

0

0.75

p

BUFFER AMP

INPUT+ INPUT-

OUTPUT

V+

V-

TX

Q512

D501,Q503

THP

T : 4.28VR : 4.27V

T : 4.38VR : 1.4V

R : 0.14mVT : 4.08V

T : 5.06VR : 4.978V

T : 1.84mVR : 0.15mV

R : 3.25VT : 9.7mV

R : 4.26VT : 6.94mV

T : 4.17VR : 1mV

R : 0.79VT : 0.81V

T : 4.98VR : 4.94V

R : 1.1VT : 1.27V

R : 4VT : 4.03V

T : 0.43VR : 0.96V

R : 4.15VT : 18mV

T : 4.2VR : 2.5mV

R : 2.5mVT : 1.01V

T : 18mVR : 1.11V

R : 13.73VT : 13.82VT : 14.43V

R : 14.34V

T : 14.41VR : 14.33V

1

2

3

4 4

3

3

BD BE BF BG BH

TX-RX UNIT (X57-7370-10) (A/2)


X57-737 (A/2) 3/4

470p

CN701

10kR795

2SC4215-F(Y)

450kHz

R709

R710

10k

R79

8

47

10

0.1u

C72

3

R714

C71

3

10u

L780

0

7p

C70

7

68p

C71

2

68p

Q7002SC5108(Y)F

C711

0.1u

C710

C7090.1u

10

C70

3

0.1u

0.1u 0

R703

OUT

R70

1

C700

C70

10.

01u

560

L701560n

R571

R702

330k

C706

10p 47n

L703

100p

C704

47p

C708

AMDEToUTPUTFMDEToUTPUT

C792

0.1u

OUT INC727R796R705

0 0

R71

8

0.1u

18k

R72

0

2.2k

VS

S

VD

D

MCP6021-E/OT

R70

4

1k

IC700

1V

oUT

2

5

VIN

-

3

VIN

+ C71

7

0.01

u

4

R71

2

10k

0.1u

10u

C72

4

C71

9

R71

7

47k

CF701

0.01

u

C72

5

R727

2.2k

RSSI

R726

C72

9

CN700

18k

0.47

u

RSSIoUTPUT

RFAGCoUTPUT

AGCAMPoUTPUT

AMAGCINPUT

NoISEAMPINPUT

NoISEAMPoUTPUT

CoMPINPUT

CoMPoUTPUT

RFINPUT

100n

12

11

10C720

10p

C721

0.1u

C718

0.1u

C790

0.1u

IN

FMIFDECoUPLING2

FMIFDECoUPLING1

AMIFDECoUPLING

QUADINPUT

LIMoUTPUT

9

FMIFINPUT

AMIFINPUT

8

7

6

5

TK10931VTL-G

1

MIXoUTPUT

VCC

oSC(E)

oSC(B)

4

3

2

IC701

C715

0.01u

20

AMSW13

14

15

16

17

18

19 R719

270k

24

GND

21

22

23

R73

00C728 0.1u

R721 10k

R725 22k

C759 0.1u

R722 4.7k

C760 0.1u

R731

10k

C730

R724 100k

0.01u

R733

560k

Q701

L704

1.8u

0.01

u

C73

3

L705

R72

8

220

C73

2

R794

RS

SI

10k

VA

GC

0.01

u10

0k

R79

7

R73

5

C73

6

100

C72

2

47k

R79

2

47p

TC75W51FUF

VSS

oUTA

IN-A

IN+A

VDD8

IN+B

oUTB

IN-B

5

6

7

R73

6

100k

C73

5

1

R73

8

2.7k

4

3

2

IC404

47p

58.05MHz

22pC73

7

VAGC

2p

C73

8

R737

220

C734

0.01u

OUT

C73

9

6pR739

220

C740

0.01u

IN

R654

C641

R60

5

R608

47

HS

C27

7

D60

0

R61

010p

C603

6.8k

R60

4

10k

C60

4

2SC5636Q600

22n

0.1u

L600

2.2k

R60

7C

605

330

R60

6

C68

9

470p

C607

7p

R609

0

4.7k

HSC277

D601

C62

2

D60

4H

ZU

2ALL

470p

R62927k

C62

6

0.1u

R63

3

2SC5383-T111Q604

R65

2

270k

C63

6

470p

150k

Q605SSM3K15TE(F)

R64

1

10k

R65

3

270k

0.39

D60

5H

ZU

5CLL

C63

16.

8u10

100 R

642

+

R635

560

R648

150k

R649

R64

7

R64

5

0.39

0.39 47

p

C64

0

270k

R65

1

270k

10p

C63

7

TH600

100k

R657

R65

6

DTC144EEQ607

C65

1

470p

100k

R66

1

47k

2SK1824-A

0

56k

R66

0

Q608

C65

3

TA75W01FUF

2

3

4

IN1-

VEE

IN1+

1

IC600

oUT1

10k

7

6

5

oUT-B

IN2+

IN2-

8VCC

R655

R658

1.8k

470p

470k

R659

Q610EMD5

R66

4

0

CN60047

0p

470p

50T

THP

50C

19.2M

/DS

W

/APCSW

50R

50IF

+B

33C

IF_D

ET

50T

+B

1st LO

50R

RX

BUFFER AMP LOCAL SWITCH

APC SWITCH

APCSWITCH

APC SWITCH

APC SWITCH

CONTROLAUTO POWER

APC SWITCH

BUFFER AMP2nd LOCAL

FM IC

BUFFER

(RSSI/VAGC)OP AMP

IF AMP

APC PROTECT

SWITCHLOCAL

D600

APCSWITCH

2SC5636Q601

2SK3077F

RF AMP

Q602

6.8n

L605

4.7k

R61

2

470p

C61

0

180

R61

6

470p

C61

1

0.1u

C69

0

22

R61

8

470p

C61

2

330

R61

7 7p

C613

7p

C671

470p

C615

470p

C61

4

120

R62

6

100

R62

2

0

R627

15p

C621

0

R628

0

R620

470p

C670

15p

C62

3

470p

C61

8

47kR624

10k

R62

3

0.1u

C69

1

L602

18n

L615

15n

L603

15n

L604

-t

C61

7

470p

0.1u

C61

9HSC119

D608

C672

470p

470

R669

150C 150C

RF AMP TX

TX

XF700CF700

450kHz

T : 5mVR : 4.849V

T : -0.8VR : 2.66V

R : 0.731VT : 3.6mV

T : 5mVR : 4.694V

R : 0.697VT : 3.6mV

T : 85mVR : 2.03V

R : 1.81VT : -100mV

T : 140mVR : 0.65V

T : 128mVR : 63mV

T : 11.2mVR : 3.274V

R : 61mVT : 110mV

R : 3.294VT : 40mV

T : 3.71VR : 13mV

R : 7.11VT : 1.52V

T : 3.92VR : 18mV

R : 1.59VT : 1.52V

R : 1.81VT : 1.89V

R : 4.75VT : 4.8V

T : 1.36VR : 1.48V

T : 2.37VR : 2.5mV T : 0.64V

R : 5mV

L : 4.64VH : 4.65V

L : 0.42VH : 0.62V

4 4

3

BI BJ BK BL BM

TX-RX UNIT (X57-7370-10) (A/2)

85


470p

470p

Q7053SK318

L706

C74

3

R740

47

C74

50.

01u

9p

C74

6

470p

R743

680

R74

4

220

560n

L708

L707

270n

BPF

C75

0

C74

8

470p

R74

7

0.01

u

150k

R74

5

R74

6

Q7033SK318

1k

CN702

C75

2

470p

C75

69p

100k

L711

C74

7

C74

4

0.01

u

C74

1

C74

2

4.7u

R742

470p

4.7k

L710

18n

C753C749

10p

2p

10p

C75

1

2p

L709

18n

C75

5

C75

43p 4p

0.1u

C76

6 3 4INPUT+

R75

8T

V2

10k

INPUT-

V+

OUTPUT

LMC7101BIM5

2

1V-

5

IC702

43

C78

0

0.1u INPUT+

100k

R76

4

R76

9T

V1

10k

INPUT-

R77

4

100k

OUTPUT

LMC7101BIM5

820k

R76

3

1

V+2

5V-

IC703

R77

3

820k

R777

10k

180k

R74

9R

748

100k

22n

C77

7

470p

C77

9

C78

2

R77

1

0.5p

C78

518

0

L717

R768

0.01

u 0

220n

R770

68

C78

3

C78

4

1u

2SK1830F

C79

1R

783

R780

0

R78

1

1.8k

470p

470k

220k

D70

5

HS

C11

9

470p

C78

6

Q706

R77

9

68k

C78

8

R772

0

R77

5

100k

R77

8

100k

0.1u

C78

9

470p

R784

50T

+B

1st LO

50R

RX

DC AMP for BPF DC AMP for BPF

RF AGC

RF AMP

MIXER

RF AGC

Q7042SC5383-T111

270

R66

5

270

R66

6

C66

1

470p

C97

5

R663RF DRIVE AMP

RF FINAL AMP

HVC131

D607

C66

2HVC131

C66

9

4p5p

C66

6

8p

C66

8

4p

C66

41p

1.5p2p

C663

100p

L613

C667C665

L612

82k

R66

7

L614D606

18p

HV

C13

1

HV

C13

1

D70

9

4p

C80

3

C809

D71

1

2p

C81

0

L725

ANTENNA SWITCH

RD01MUS1-T113Q603

18n

L606

47R63

133

k

R63

0

470p

C62

5

10k

R63

2

0

R634

10p

C62

8

1u

C63

0

470p

C63

2

10p

C62

7

220

R63

6

470p

C62

9

L607

10k

R63

9

33k

R64

6

470p

C63

5

47

R64

4

470pC634

39p

C63

9 0

R650

47p

C65

2

7.5p

L610

150p

150p

C64

3

RD07MVS1BT122Q606

C65

0

C64

7

18p

12p

C65

4

C64

2

C64

5

0.1u

C64

8

0.01

u

C64

6

0.01

u

1u

C64

9

L609

8.2n

L723

100p

C660

220n

L611

7.5p

0

ANTENNA SWITCH

1SV

286F

D70

2

L713

8.2n9p

C76

7

1.5p

C76

4

0

R753

0

R752

0

R750

0

R765

470p

C778C773

1p

C768

1p

C758

470p

100k

R75

7

100

R76

1

C76

5

470p

C77

1

470p

C77

5

470p

D70

3C

772

1SV

286F

C77

0

4p9p

L714

8.2n

R75

9

100k

D70

4C

776

1SV

286F

C77

4

3p9p L715

8.2n

R76

0

100k

C76

9

470p

R76

2

10k

1SV

286F

C80

1

470p

R78

8

100k

9P 8.2n

D70

8C

804

C8002p

C79

8

1.5p

L721

1SV

286F L7

224p

C80

2

9p

C79

6

470p

470p

100k

C79

4R

785

D70

6

C795

10n

8.2n

L720R799

0

0

R786

C807

5p 9p

C811

0

R791

33n

L726

100p

C85

0D

710

1SV

286F

C84

9

R79

0

100k

470p

C79

9

470p

HS

C11

9D

700

4.7k

R75

5

1uC76

1

150C

VARI-CAP TUNE

D702-704

VARI-CAP TUNE

D706,708,710

RIPPLEFILTER

FILTERRIPPLE

TX

L716

4T

7T

4T4T 4TStrip line

ANT

R : 4.94VT : 4mV

T : 3.8mVR : 4.94V

T : 1.63VR : 0.308V R : 69.8mV

T : 1.633V

T : 1.615VR : 0.5mV

R : -35mVT : 0.808V

R : 3.14VT : 46mV

R : 2.96VT : 46mV

T : 43mVR : 1.29V

T : 47mVR : 4.53V

R : 4.54VT : 46mV

T : 47mVR : 4.89V

T : 45mVR : 1.99V

R : 6.71VT : 13.6V

R : 6.71VT : 13.6V

T : 43mVR : 137mV

R : 3.8mVT : 42mV

T : 14.3VR : 14.26V

T : 13.72VR : 13.65V

R : 14.28VT : 14.32V

T : 2.81VR : 14mV

L : 1.96VH : 2.8V

T : 2.34VR : 12mV

H : 2.33VL : 1.626V

T : 42.7mVR : 0.87V

4

BRBQBPBOBN

1

2

3

4

5

6

7

TX-RX UNIT (X57-7370-10) (A/2) Note : The components marked with a dot ( ) are parts of layer 1.

X57-737 (A/2) 4/4

NX-300

86

INTERCONNECTION DIAGRAM

12345678910

11

12

13

14

CN403

101

VSS

V3

V2

V5

V1

VDD

CN1

V4

20

LCD ASSY

X53-426

CONTROL PCB

POWER SW/ CHANNELAF VOL SELECTOR

RXEI

OPT9

NC

OPT11

AGND

AGND

TXI

OPT7

26P_TD

DTI

OPT5

AO

OPT1

POW

OPT8

26P_RD

RXEO

OPT10

AI

OPT2

TXO

CN710 OPT3

OPT6

OPT4

AGND

5V

/CS

/RES

AO

/WR

D0

D1

D2

D3

D4

D5

D6

VDD

D7

1

5V

1

20

CN701

RXD

TXD

UNIVERSAL CONNECTOR

NC

PF

SP-

PTT

EMC

SSW

1

MSW

CN405

SP+

ME

OPT

E

6KEY/SP/MIC

ME

EMC

SP+

SP+

SP-

SP-

6_/KEYI1

6_/KEYO2

BL_SB

6_/KEYO0

6_/KEYO1

BL_SB

6_/KEYI0

AGNDCN23

OPT10

OPT7

TXo

AGND

SB2

NC

SToN

oPT3

RXEO

DTI

C3

TCNT

OPT2

OPT9

DI

AI

oPT1

AGND

OPT3

RXEI

RXEo

DGND

MDWN

oPT5

INH

OPT11

X57-737 B/2

OPT1

26P_RD

OPT6

AO

5V

26P_TD

TXI

TXOCN737

oPT2

TXI

RXEI

AGND

OPT4

oPT4

OPTION PCB

AGND

POW

OPT8

OPT5

5A

DGND

X41-372

SWITCH UNIT

SB1

+B

EN2

EN1

EN4

AGND

EN3

VOL

VOL_GND

33A

1 26

14

NX-300

87

INTERCONNECTION DIAGRAM

I2CSDA

/EMG

CN900

CV

LED_R

VAGC

IFC

LED_G

RSSI

TCXO_MOD

TV2

SBC

5RC

/T_R

TV1

GND

/SAVE

ASSIST

1

+B

GND

NC

+B

50

NC

GND

+B

I2CCK

/5TC

Side_1

NC

W/N

Side_G

+B

PTT

GND

NC

/APCSW

SDO1

PLD

THP

VCO_MOD

Side_2

/PCS_RF

RFAGC

/DSW

APC

GND

GND

SCK1

S_DET

NC

IF_DET

I2CSDA

50

SDO1

SCK1

AGND

5RC

Side_2

+B

IFC

Side_1

1

I2CCK

ASSIST

IF_DET

APC

Side_G

PTT

VCO_MOD

VAGC

TV1

CV

+B

TCXO_MOD

+B

/DSW

/5TC

TV2

LED_R

CN404

/APCSW

/T_R

PGND

THP

NC

+B

/SAVE

GND

RFAGC

RSSI

GND

PGND

SBC

/EMG

NC

PLD

S_DET

W/N

NC

/PCS_RF

AGND

LED_G

NC

NC

S-

+

BATT

X57-737 A/2

TX-RX PCB

Side_2

Side_G

PTT

GND

Side_1

CN901

ANT

PTT

Side_1

Side_2

CORD ASSY

X42-334

X41-371

SWITCH UNIT

NX-300

88

BLOCK DIAGRAM

DSP IC102FlashROM

IC101

SRAM

IC103

IC108ASIC

D0~15,A0~20,/RD,/WR,/CS0,/CS2,/CS3,/CS4/HDS2,/HRDY

RTCIC403RV5C386A

I2CCK,I2CSDA

I/O Expander

IC701

BUS SW

CN

1 to

LC

D M

odul

e

IC401 TC7MZ245FKIC402 TC7WZ245FK-F

33M

IC403LMC7101BIM5

N100C

LCDCNT

X101 32.768kHz

SM5023CNDH-GIC107 VC

TCXO

X10218.432MHz

33M

BS

HIF

T33A 33M

RESET

IC105XC6109C29ANN

33MIC410

MCP6021-E/OT

IF_DET

LPF LPF

BPF

IC711TC75W51FK(F)(2/2)

AMP

Q7042SC4617(S)

IC702TC75W51FK(F)(1/2)

IC702TC75W51FK(F)(2/2)

DAC

IC703M62364FP-F(7/8)

LPF

IC704TC75S51FE(F)

IC707TC7W53FK(F)

AMT/SCSW

DAC

IC703M62364FP-F

33A

SDO0,SCK0/EVCS

SW

TONESW

Q702SSM3K15TE

TONE

SUM

DT

I fr

om A

NI

IC710TC75W51FK(F)(1/2)

LPF

IC706TC75S51FE(F)

MIC

RXAF

LPF LPFMOD

IC705TC75W51FK(F)(2/2)

IC705TC75W51FK(F)(1/2)

TV1TV2

KEY Matrix(12key)

KE

YO

0,1

,2,3

/KE

YI

0,1,

2,3,

4

/OINT

CN710 26pin Option Board

OP

T1,

2,3,

4,5,

6,7,

8,11

TX

OT

XI

RX

EO

RX

EI

DT

IO

PT

9

PO

W5A A

IA

O

OP

T10

26P

_TD

26P

_RD

/DRST,DCLK,/SYMTIM,/RSSITIM,/DINT,

/SWUP,FSDET,/HINT

/LCDRST

MCD1AF,/MCSCKAF,/MCCSAF,MCD0AF,MCD1CN,/MCCXCN,/MCD0CN,/

MCCSRCN,MCSCKCN

AVR

SB2

Q101 2SA1832(G,R)FQ102 2SC4617(S)Q103 SSM3K15TE(F)

5A

BLC

D3,D4D7,D8

D1,2,5,6D9,10

LCD Back Light

12key Back Light

BL_SB

CN

701

(for

pro

duct

ion)

TO DSP

/EMG , /PTT , Side_1 , Side_2,Side_G , IFC ,5RC , 5TC , /DSW , /APCSW,SBC , /T_R ,ASSIST , SDO1 , SCK1 , PLDC

N40

450

pin

Boa

rd to

Boa

rd

ASQDETVOXVOL

BATTPFKEY

RSSI , THP , VAGC , CV , S-DET

TXD0RXD0RTS0CTS0DSR/PTT

/UDETRXD3ENC1ENC2ENC3ENC4/BINT/PSW

BLCMM

SCSW/AMTSTSW

EXAMTINAMTBEEP

TONESW/MNDNU

5UC

+B

15M

(3/8,4/8)

ASQAPC

AVR

SB2

BLC

5A

Q1 2SA1362(GR)-FQ2 2SC4617(S)Q3 SSM3K15TE(F)

/RINT32K

DC SW

DC SW

LED-G

LED-R

SBC

Q415EMD12

Q414EMD12

SBC

X53-4260-XX (Control unit)

NX-300

89

BLOCK DIAGRAM

Rect

D705RB706F-40

AMP

IC711TC75W51FK(F)(1/2)

ASQDET

APC

DAC

OPT10MUTE

DO

IC703M62364FP-F(8/8)

Q701 2SA1832(GR)F

SUM

IC713TC75W51FK(F)(2/2)

DAC

IC703M62364FP-F(6/8)

DAC

IC703M62364FP-F(5/8)

AMP

IC408TC75S51FE(F)

IC409TC75W66FK-F

INAMT

EXAMT

IC413TPA6201A1DRBR

IC412TPA6201A1DRBR

AVR

+B

INAMTEXAMT

Q406 2SB1132(Q,R)Q407 UMG3N

Q405SSM6N16FE-F

BE

EP

MUTE

STSW

IC709TC7W53FK(F)

OPT9VGSAI from

IC714TC7W53FK(F)

OPT6AO to VGS

AMP

IC716TC75W51FK(F)(1/2)

AGC

D703,704 RB706F-40Q705 2SC4738(GR)FQ706 2SA1832(GR)F

AI

from

VG

S

MUTE

MM

Q7072SJ243-A

MUTE

MSW

MSW

Q4 SSM3K15TE(F)Q5 2SJ347F

SSWPTTPFKEYOPT5VTXDRXD

VOXAMP

IC716TC75W51FK(F)(2/2)

Rect D706RB706F-40

AMP IC715TC75S51FE(F)

VOX

MUTE

IC712TC7S66FUF

/SCSW

SUM

IC710TC75W51FK(F)(2/2)

DI

DAC

IC703M62364FP-F(1/8)

DAC

IC703M62364FP-F(2/8)

TCXO_MOD

VCO_MOD

MSW

/UDET/PTT

PFKEY

50U

RXD3

IC41

7T

C7W

H12

6FK

(2/2

)

RX

D0

RT

S0

Q41

1S

SM

6N16

FE

-F

NC

BE

R_C

LKB

ER

_DAT

A

BE

R_E

N

IC41

8T

C7W

T12

5FU

F

IC41

5T

C7S

ET

08F

U-F

TX

D0

SC

TX

D

EMC

6_KEYO26_KEYO16_KEYO06_KEYI06_KEYI1

BL_SB

CN23

CN405

KEYMatrix(6key)

Selectorknob

Volume

CN403

ENC1ENC2ENC3ENC4

33AVOL

SB1+B

6keyBack Light

DCDCConverter

L401 , D406 , D405IC407 LT1616ES6-PBF

RESET

IC414XC61CC5602NR

/BINT

+B

AVR

IC416S-812C31BPI-G

DCSW

Q413 2SA1955A-FQ412 SSM3K15TE(F)

Q401 SSM6N16FE-F

DCSW


CN

401

Li B

atte

ry

31BU

SCTAM1

SBC

D4121SS301F

DCSW

SB1Q408

EMD12

SBC

D4081SS301F

Q402 SSM6N16FE-F

/PSW

DCSW


BATT

SB2

AVR

IC708 XC6204B502PR

5A

AVR

IC404XC6204B332M

AVR

IC405XC6205B152PRN

AVR

IC406XC6204B332M

33M

15M

33A

SC

RX

D

AVR

IC411NJM2880U105ZB

5UC

IC403 LM2682MMX50U

DCDC-10VN100C

NX-300

90

BLOCK DIAGRAM

IFAMP

IF AMPIC701

TK10931VTL-G

BPF

CF700 450kHz

BPF

CF701450kHz

IFAMP

IC700MCP6021-E10T

IC40

4T

C75

W51

FU

F(1

/2)

IC40

4T

C75

W51

FU

F(2

/2)

RS

SI

VA

GC

BUFFAMP

BUFFAMP

BUFFAMP

Q6002SC5636

Q5122SC5636

Q5052SC5636

VCO

Q508,509 2SK508NV(K52)D506,507 1SV325FD519 1SV278-FD506,507,508,509D514,515,516,517 1SV282-F*4

LPF

PLL

LoopFilter

VCO MOD

ASSIST

CV

RippleFilter

Q5072SC5383-T111

T/RSW

Q510 SSM6L05FUQ511 2SJ347F

VCTCXO

x3

Q700 2SC5108(Y)F

VC

X500 19.2MHz

50IF

TCXO_MOD

PLD

CN900

AVR

+B

50C

AVR

DC SW

33C

DC SW

DC SW

50R

50IF

50T

5RC

IFC

/5TC

/SAVE

DC SW SB3

SBC

Q901SSM6L05FU

DCDCConverter

150C

Q904 SSM5H01TUIC901 XC9101D09AKR

IC902TK11250CUCB

IC903 TK71733S

Q902 SSM6L05FU

Q903 SSM6L05FU

Q905 2SA1955A-F

IC900 TC75S51FE(F)

DCSW

SB3

LED_R

LED_G

D90

0Q

900

UM

G9N

/EMG

S1

Temp.Sensor

IC500LM73CIMKX-0

33C IC502

IC503LMC7101BIM5

IC504TC75W51FUF(1/2)

Q5042SK879(Y)F

50C

50C

50C

RippleFilter

150CQ5032SC5383-T111

IF_DET

I2CCKI2CSDA

IC501LMC7101BIM5

Q7012SC4215-F(Y)

TX

: 45

0.00

~52

0.00

MH

zR

X :

391.

95~

461.

95M

Hz

SD

O1

SC

K1

/PC

S R

F

/T_R

50R

/EMG , LED_R , LED_G , APC ,/DSW , /APCSW , CV , ASSIST ,VCO_MOD , TV1 , TV2 , /T_R ,PTT , Side_1 , Side_2 , Side_G

RSSI , THP , VAGC , CV , S_DET , IF_DET

X57-7370-10 (TX-RX unit)

NX-300

91

BLOCK DIAGRAM

LPFANTSW

DC SW

Q606RD07MVS1B

Q603RD01MUS1

Q6022SK3077F

APC

+B

FinalAMP

Pre-FinalAMP

DriveAMP

Protect

Q6082SK1824-A

DC SW

/APCSW

ASQAPC

Q607DTC144EE

/APCSW

Q610EMD5

DC SW

/DSW

Q6042SC5383-T111

T/RSW

5T 5R

Notch

D606,607D709,711HVC131*4

D600,601HSC277*2

BPF

TUNE

L726

D71

01S

V28

6F

TUNE

TV1IC702LMC7101BIM5

TV2

RFAMP

L721,722

Q2043SK318

D70

6,70

81S

V28

6F*2

IC703LMC7101BIM5

BPF

L713,714,715

TUNE

D70

2,70

3,70

41S

V28

6F*3

1stMIXER

Q7033SK318

MCF

XF70058.05MHz

5T

50R

LPF

PTT

Side1

Side2

Side_1

Side_2

Side_G

PTT


5T

TX/RX: 450~520MHz

+

-

BATT7.5V

S

+B

S_DET

RippleFilter

2SC5383-T111Q704

150C

IC600TA75W01FUF

CN901

1st L

ocal

: 39

1.95

~46

1.95

MH

z

Pre-DriveAMP

Q6012SC5636

5T

Q605SSM3K15TE

NX-300

92

Q70

3

Mix

er

RF

(Cen

ter

Freq

uen

cy)

VC

OA

SIC

IC10

8

Q70

1

IF A

mp

IC70

4

SM

F

500m

Vrm

s

C73

0C

734

XF7

00

MC

F

IC70

1

FM IC

CF7

01

CF

C75

8C

795

LNA

Q70

5

C79

0

PLL

C60

3

C58

8

Q60

0Q

601

C60

7D

601

RX

LO

Q60

2C

670

Q60

3Q

606

C66

0

D60

0

-118

.5d

Bm

-118

.5d

Bm

-119

.0d

Bm

-105

.0d

Bm

-119

.0d

Bm

-103

.0d

Bm

64m

Vrm

s(a

t M

IC t

erm

inal

)47

.4m

Vrm

s

2.6d

Bm

13.0

dB

m33

.0d

Bm

5.0W

IF1

(58.

05M

Hz)

AF

(1kH

z)

C81

1

C58

6C

613

C63

4

IC71

3C

756

C79

2IC

700

IC41

0

(-56

.5d

Bm

)

C72

7C

451

C43

2

IC10

8

AS

IC

IC70

7

SC

FC

C70

9

92.5

mV

rms

92.8

mV

rms

92.7

mV

rms

(-61

.0d

Bm

)(-

66.5

dB

m)

125.

9mV

rms

69.8

mV

rms

DS

P

IC10

2

7.9d

Bm

22.6

dB

m

RF

(Cen

ter

Freq

uen

cy)

AF

(1kH

z)

IF2

(450

kHz)

IC41

3

Au

dio

Am

p

IC40

8

SP

Dri

ve

IC71

6C

762

C72

1IC

710

C55

5C

562

IC71

0

412m

Vrm

s(W

)20

6mV

rms(

N)

391.

8mV

rms(

W)

195.

9mV

rms(

N)

IC50

4

348m

Vrm

s(W

)17

4mV

rms(

N)

27.6

mV

rms(

W)

13.8

mV

rms(

N)

352m

Vrm

s(W

)17

6mV

rms(

N)

IC70

3

IC70

3

DA

C

C42

4IC

409

C43

8

123m

Vrm

s8.

7mV

rms

124m

Vrm

s

352m

Vrm

s(W

)17

6mV

rms(

N)

410m

Vrm

s(W

)20

5mV

rms(

N)

2PIN

-4P

IN

348m

Vrm

s(W

)17

4mV

rms(

N)

VC

O

IC70

3IC

706

IC70

5

LEVEL DIAGRAMR

ecei

ver

Sec

tio

n

Tra

nsm

itte

r S

ecti

on

AG

is s

et to

the

MIC

inpu

t bec

omes

(3kH

z/1.

5kH

z) a

t 1kH

zM

OD

(Wid

e/N

arro

w).

To m

ake

mea

sure

men

ts in

the

AF

sect

ion,

con

nect

the

AC

leve

l met

er.

In t

he R

F se

ctio

n, u

se a

100

0pF

coup

ling

capa

cito

r.

To m

ake

mea

sure

men

ts in

the

AF

sect

ion,

conn

ect

the

AC

leve

l met

er.

(AN

T in

put :

-53d

B,1

kHz

FM, 3

kHz

DEV

(Wid

e))

In t

he R

F se

ctio

n, u

se a

100

0pF

coup

ling

capa

cito

r.(T

he d

ispl

ay s

how

s th

e S

SG

inpu

t va

lue

requ

ired

to o

btai

n 12

dB S

INA

D w

ithou

tlo

cal l

evel

.)

NX-300

93

OPTIONAL ACCESSORIES

KNB-47L (Li-ion BATTERY PACK)

Voltage ................ 7.4VBattery capacity ... 1950mAh

Specifications

KNB-48L (Li-ion BATTERY PACK) External View External View

Schematic Diagram

Voltage ................ 7.4VBattery capacity... 2550mAh

Specifications

Schematic Diagram

THERMISTOR

560kΩ

DIODE

PROTECTIONCIRCUIT

DISCHARGING TERMINALS

CHARGING TERMINALS

10kΩ ±0.5%

Thermal switch(Breaker)

TS

S

THERMISTOR

DIODE

PROTECTIONCIRCUIT

DISCHARGING TERMINALS

CHARGING TERMINALS

10kΩ ±0.5%

Thermal switch(Breaker)

TS

S

NX-300SPECIFICATIONS

GENERALModels ............................................................................. K : Basic Model K3 : w / 12-key ModelFrequency Range ............................................................. 450~520 MHzNumber of Channels ........................................................ 512Zones ............................................................................... 128Max. Channels per Zone ................................................. 250Channel Spacing .............................................................. Analog : 12.5/25 kHz Digital : 6.25/12.5 kHzOperating Voltage ............................................................ 7.5V DC ± 20%Battery Life (with KNB-48L) ............................................. 5-5-90 duty cycle : more than 12.5 hours

10-10-80 duty cycle : more than 8.5 hoursOperating Temperature Range ........................................ –22°F to +140°F (–30°C to +60°C)Frequency Stability .......................................................... ±1.0 ppmAntenna Impedance ........................................................ 50ΩDimensions (W x H x D) (Projections not included)

Radio only ................................................................... 2.28” x 5.02” x 1.63” (58 x 127.5 x 41.3 mm)with KNB-47L .............................................................. 2.28” x 5.02” x 1.63” (58 x 127.5 x 41.3 mm)with KNB-48L .............................................................. 2.28” x 5.02” x 1.91” (58 x 127.5 x 48.5 mm)

WeightRadio only ................................................................... 8.82 oz (250g)with KNB-47L .............................................................. 13.23 oz (375g)with KNB-48L .............................................................. 14.29 oz (405g)

RECEIVERSensitivity ........................................................................ Digital @6.25kHz (3% BER) : 0.20µV Digital @12.5kHz (3% BER) : 0.25µV

Analog (12dB SINAD) : 0.25µVSelectivity ........................................................................ Analog @25kHz : 72dB Analog @12.5kHz : 65dBIntermodulation Distortion ............................................... Analog : 70dB (±50, 100kHz)Spurious Response .......................................................... Analog : 70dBAudio Distortion ............................................................... Less than 3%Audio Output ................................................................... 500mW / 8Ω

TRANSMITTERRF Power Output ............................................................. 5W / 1WSpurious Response .......................................................... 70dBFM Hum and Noise ......................................................... Analog @25kHz : 45dB Analog @12.5kHz : 40dBAudio Distortion ............................................................... Less than 3%Modulation ....................................................................... 16K0F3E, 11K0F3E, 8K30F1E, 8K30F1D, 8K30F7W, 4K00F1E, 4K00F1D,

4K00F7W, 4K00F2D

Analog measurements made per TIA/EIA 603KENWOOD reserves the right to change specifications without prior notice or obligation.

2967-3, Ishikawa-machi, Hachioji-shi, Tokyo, 192-8525 Japan

P.O. BOX 22745, 2201 East Dominguez Street, Long Beach,

6070 Kestrel Road, Mississauga, Ontario, Canada L5T 1S8

Rembrücker Str. 15, 63150 Heusenstamm, Germany

Leuvensesteenweg 248 J, 1800 Vilvoorde, Belgium

KENWOOD House, Dwight Road, Watford, Herts.,

Amsterdamseweg 37, 1422 AC Uithoorn, The Netherlands

Via G. Sirtori, 7/9 20129 Milano, Italy

Bolivia, 239-08020 Barcelona, Spain

(A.C.N. 001 499 074)16 Giffnock Avenue, Centrecourt Estate, North Ryde, N.S.W. 2113 Australia

Unit 3712-3724, Level 37, Tower one Metroplaza, 223 Hing Fong Road,

1 Ang Mo Kio Street 63, Singapore 569110

CA 90801-5745, U.S.A.

Kwai Fong, N.T., Hong Kong

WD18 9EB United Kingdom

L’Etoile Paris Nord 2, 50 Allée des Impressionnistes, Bp 58416 Villepinte, 95944 Roissy Ch De Gaulle Cedex

J K L M N O P Q R SIHGFEDCBA

1

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14

1

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3

4

5

6

7

8

9

10

11

12

13

14

GSD

GSD

GSD

1

34

5

1 345

C24 R406C27

C28C40 1

20 V5V4V3V2V1VDDVSSVDDD7D6D5D4D3D2D1D0/WRAO/RES/CS

C2

C3

C4

C5

C7

C8

D1D2

D3 D4

D5

C452

D6

D7 D8

D9D10

D13

D16

CN22

CN23

CN24

J79-0131-19

R500 D22

IC1

R10

R11

R12

R15

R17

R29

R30

R1R2

R4R5R6R7R8R9

R40

C11

C13C14

C15

S109S11#

S120

S13*

R848

R849

R853

S21S34S47

S52S65S78

S83S96

C23

C25

C26

C29

C30C31 C32

C33 C34

C35

C36

C37

C38

C41

C1C6

R483

TH1

IC415

D11

D12

D14D

15D

18

D19

D20

D21

D23

L1L2

L3

L4L5

L6

L7

R14

R16

R18R19

R20R21

1 14A

GN

D6_/K

EY

I0B

L_SB

6_/KE

YO

16_/K

EY

O0

BL_S

B6_/K

EY

O2

6_/KE

YI1

SP

–S

P–

SP

+

EM

CM

E

SP

+

R22R23R24

R25

Q1

R26

Q2

R27

Q3

Q4

R28

Q5

R31

R32R33

R34R35

R3

CN1

C10

C12

C16

C17

D17

NX-300 PC BOARD





PC BOARD NX-300

Component side

Foil side


Ref. No. Address

IC1 6K

IC415 8K

Q1 7K

Q2 7L

Q3 6L

Q4 4L

Q5 4L

D1 5D

D2 5C

D3 3O

Ref. No. Address

D4 3Q

D5 5B

D6 7B

D7 10O

D8 10Q

D9 7D

D10 7C

D11 7L

D12 7M

D13 7M

Ref. No. Address

D14 7M

D15 7L

D16 7L

D17 9L

D18 4L

D19 4L

D20 8M

D21 8M

D22 8L

D23 9L

64 65


1

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14

1

2

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4

5

6

7

8

9

10

11

12

13

14

G

SD

G SD

134 5

1

34

5

G

SD

G SD

G

SD

GSD

GSD

G

SD

G

SDR401

R402

R403

R404

R405R407R408

R410

R411

R412

R413

R414R415R416

R417

R800

R418

R801

R802

CN401+ –

R806

CN403

R807

R420CN404

CN405

R425

R427R428R429

R812R813

R814

R816

R818

R432

R433

R438

R821

R826

C402

C404

R828

R441

C405

R829

C406

R442

R443

C407

R444

R446

R831

C410

R834

C411

R837

C414

R838

R451

C415 +

C416

R454

C418

C419

R840

R841

C420

R845

C422

R847

C424

R462

R463C428

+ +

R464

C429

R466

R468

R851R852

C430

C432R470

R471

C435C436

R472

C437C438

R474

C439R475

F701

C440

C442

R480R482C446

C448

R484

R485

R487

R488

R489

Q101Q102

C453

C454

R490

R492

R494

R495

R496

R497

L101

D401

L102

D402

D403

C464

D404

D405

C466

C469

D409

D410

Q702

Q703

D414

D415

Q707IC402

IC404

IC405

IC406

IC407

L704

IC408

11

3

3

1

4

1

3

6

4

1

3

6

4

1 3

6 4

1 3

6 4

1 3

6 4

5

6

4

3

5

4

4

1

5

8

4

1

5

6

4

1

3

3

1

4

5

3

1

4

6

8

L705

L707

IC411

3

+

+

+

1

4

4

4

4

1

1

3

3

1

4

6

5

4

5

8

4

1

5

8

10

1

11

20

1

5

8

1

5

8

5

IC412

IC413 L710

IC4141

2

4

3

L713

IC417

L714

IC418

L715L716

L717

R101

R106

R108

R112R114R117

CN104

CN105

R127

L8

R128

R130

R132

R133

R710

R135

R712

R136

R713

R137

R139

R717

R719

C102

C103

R140

R141

CN701

C105

R142

C106

R720

R144

C108

+

R721

R145

R722

R146

R723

R147

CN707TXD

CN708RXD

R149

R727

R728

C110

R729

X101

X102

R150

CN710

C115

R153

R154

R730

C118

R731

R155

C119

R732

R156

R157

R158

R735

C120

R738

C121

R546

R547

C124

C701

R740

R165

C706

R167

R168

R744

R745

R746

R747

R748

C131

R749

C135

R172

C136

C712

C137

C714

R750

R174

C138

R175

C139

R176

R752

C716

C717

R177

R753

R178

R755

R756

R757

R758

C141 R759

C143

R180

C144

C721

R181

C145

C722

C146

R183

C723

C148

R185

C149

R761

R187

R763

C150

C151C152

C153

R190

C730

C154

C731

R192C156C157

R193

C158

R194

C734R771

C739

C160

R778

R779

D101

C740

C742

C743

1

1

67 12

13

181924

1213

24

C744

R780

C745

C746

R783

C747

C749R787

Q402

3

1

4

6

Q403

Q404

C750

Q405

Q406

B

C

E

C753

Q407

R791

Q409

C755

C757

R793

C758

R794

C759

R798

Q410

R799

Q411

IC101

IC102

Q413

IC103

Q414

C761

D701

Q415

L401

IC106

C763

D703

L403

C764

IC109 D706D707

C767

C768

L409

L410

C772

C775

C778

C780

C781

IC701

C782

IC702

C786

C787

IC70745

18

4

4 5

1 8

45

18

5

18

45

18

C788

IC708

1

3 4

5

IC709

IC710

C792

IC712

C793

C794 IC714

IC715

C796

IC7164

3

1

4

5

5

1 8

4 5

5

4

1

3

1 8

J79-0131-19

R424

R431

R434

R453

C417

R455R458

R460C427

R467

R479

C455C456

R493

C457

C459C460C461

C462C463

D406

C468

C470

D411

D413

D417

IC4091 4

8 5

IC416

R501

R504

R506

R507R508R509R510

R549

Q408

L402

R409

R435R436

C403

C408

R461R465

R469

C434

R477

C444R486

C451

R491

R498

R499C465

D408

D412

1 10E

N2

+BSB

1E

N3

AG

ND

EN

4E

N1

VO

L_GN

DV

OL

33M

IC403

IC410

R512R514

R516R518

R520R522

R524R526

R527R528

R530R532

R534R536

R538R540

R542

R545

Q401

CN402

R437R439

C409

R445

R448R449

C412

R450

R452R456 C421

C431

C433

R473

C441

R481

C467

D407 D

416

L702R548

Q412

R478C443

L709

R102

R103

R105

R107

R110

R111R113R115

R116R118

R119

CN101

CN102

R121

R122R123

R126

R129R131

C101

C104

R143

C107

C109

R148

C111C112

C113

C116

C117

C123 1 3

5 4

R166C134

IC104

C401R447

R457C445C447

C449C450

L708

L711L712

R502R503

R138

R159R160R161

R162C130

C159

D102

IC1075

31

1 14N

CR

XD

TX

D5VEO

PT

PF

PT

TM

EE

MC

MS

WS

P–

SP

+S

SW

46

1

6 10

C413

R459

IC401

R725

R419R426R440

R830R832

R836

R839

C800

Q103

R120

CN106R724

CN709

R726

C114

CN712

C122

R163 C133

R170

R171

R173

C718

C140

C142

R182

C147

R184R186

R762

C728

R188

R764

R189

R191

C155

C736C737

C738

C161

R782

R784

C748

R786

R788 R789

IC10521

34

C762IC108

IC705

IC706

31

4

4 1

1 25262

5 86

C790C799

R822

R823R833

R835

R842

R843R844

R846

Q705

Q706

R701R702

R703R704

R705R706

R707

R709

R711

R714R715

R716C709

C711C715

C725

C726 31

12

1920

4

41

58

5

R766

R777D704

C766

C777C779

IC704

C789C791

C795

C797

C798

R808

R820R825

R850Q

701

L701

L706

R718

CN702PTT2

CN703PTT1

CN704RSSI

CN705MAN

DOWN

CN706GND

CN711

R736

C703

R741

C713R751

C719

R767C735

R775

R795

R796

C765

IC703

C785

R804

R733R737R742C710

C724C727R765

C756IC713

R803

R805

R809R810

R811

R815

R819

R824R827

C802

C803C804

Q704

R739C704

C705TH701

R743C707

C708

R754

C720

R768

R769

C732R770

R785

C751

C752

R790

R797

C760

D702

D705

C771

IC711

C801

CN103

R511R513

R515R517

R519R521

R523R525

R529R531

R533R535

R537R539

R541R543

R544

C425

1 49LE

D_G

LE

D_R

/SA

VE

/5T

CS

BC

TV

2T

V1

5R

CG

ND

GN

DG

ND

NC

+B

+B

NC

PT

TS

ide_1

SD

O1

/PC

S_R

FA

PC

VC

O_M

OD

PLD

SC

K1

S_D

ET

NC

/EM

GIF

CI2

CC

KI2

CS

DA

/T_R

AS

SIS

TVA

GC

TC

XO

_MO

DR

SS

IC

VN

C+B

+B

NC

GN

DS

ide_G

W/N

Sid

e_2

/DS

W/A

PC

SW

TH

PR

FAG

CG

ND

GN

DIF

_DE

T 502

OPT6

POW

RX

EITX

ITX

OR

XEO

OPT7

OPT2

OPT8

OPT11

OPT9

DTI

AG

ND

5VA

IA

OA

GN

DA

GN

DO

PT10O

PT5N

CO

PT426P_R

D26P_TD

OPT1

OPT3

NX-300 PC BOARD





PC BOARD NX-300

Component side

Foil side


Ref. No. Address

IC101 5K

IC102 5I

IC103 4K

IC104 3H

IC105 4L

IC106 8I

IC107 7I

IC108 7K

IC109 6G

IC401 5F

IC402 4F

IC403 7F

Ref. No. Address

IC404 9D

IC405 3F

IC406 5C

IC407 5B

IC408 4C

IC409 3C

IC410 8E

IC411 9F

IC412 4D

IC413 3D

IC414 9A

IC416 8A

Ref. No. Address

IC417 6F

IC418 6F

IC701 7Q

IC702 5R

IC703 7P

IC704 3P

IC705 9N

IC706 7N

IC707 3P

IC708 9Q

IC709 4R

IC710 6N

Ref. No. Address

IC711 6S

IC712 6N

IC713 4Q

IC714 5R

IC715 5P

IC716 5N

Q101 3K

Q102 3K

Q103 3L

Q401 8D

Q402 8C

Q403 8D

Ref. No. Address

Q404 9E

Q405 3E

Q406 5E

Q407 4E

Q408 7C

Q409 7A

Q410 8A

Q411 8G

Q412 9D

Q413 9C

Q414 6C

Q415 6C

Ref. No. Address

Q701 6Q

Q702 4R

Q703 6R

Q704 7R

Q705 5O

Q706 5O

Q707 4N

D101 3L

D102 6G

D401 4M

D402 5M

D403 5M

Ref. No. Address

D404 5M

D405 4B

D406 4C

D407 9D

D408 7C

D409 3D

D410 4D

D411 7A

D412 8C

D413 7A

D414 6F

D415 7F

Ref. No. Address

D416 9E

D417 5C

D701 8R

D702 8R

D703 4O

D704 3O

D705 8R

D706 6O

D707 6O

66 67


1

2

3

4

5

6

7

8

9

10

11

12

13

14

1

2

3

4

5

6

7

8

9

10

11

12

13

14

GD S

+

+

+

1

3 4

5

167

1213 18

19

25

1 345

16

34

1

12 13

24

1

4 5

8

134 5

1

4 5

8

1 346

+

GD

S

145 8

GD

S

1 345

14

85

+

G GD

DS

S

GG

D

DS

S

134 6

134 5

EB B

C C

1

3 4

5

R600

CF701

R629

R633

R635C602

R641

R648

R651R652

R653

R654

R655

R657

R658

R659

C622

R660

C626

R664

C630

C631

R670

C636

F900

C640

C641

C646

C653

Q503

D604

D605

D608

Q704

L504

C672

Q902

Q904

Q905

IC404

L513

L901R500

R503

R505

R704

R705

R514

R901

R902R712

R906

R907

R908

R909

R523

R717

R527

R910

R913

R721

R530

R724

R531

R725

R532

R726

R533

R727CN900

R535

R537

R921

R922

R926

C504

R541

R735

C506

R738C509

R546 R547R549

C703

L598 L599

C512

C513

C514

C515

R552

C516

C902

C710

C711

C907

C713

C520

C717

C524

R755

R758

C913

C724

C727

R570

C534

C728

C729

C536

R574

C735

C542

C736

C543

C553

C555

C559

C942

C943

C945

C947

C948

C949

D501

C562

R795

C950

Q604

C951

Q607

C760

Q608

D700

C955

C957

C766

D901

D902

C964

C967

IC503

IC504

C971

C972

C973

C974

C976

C600

TH600

C628

C637

Q504

Q505

Q507

L500

L503

R501

R502

R504

R506

R703

R511

R512

R513

R515

R709

R519

CN

500C

V

R520

R714

R521

R522

R718

R719

CN

700R

SS

I

R529

R720

R722

R534

R536

R538

R539

C500C

501

C502

C503

C505

R736

C508

R548

X500

C511

R550

C709

C517

R554

C518

R555

C519

R557

C521 C

522

C523

C525

C526

C527 C

528

C529

R566

R567

C720

C533

C535

R572

C537C

539C

541

C550

C554

C558

C759

R796

C572

D518

IC500

IC501

IC700

IC701

C792

R601

R602

R603

C601

R669

R904

CN

701VA

GC

R731

C900

C903

C722

C723

R763

R764

R792

R794

R797

R798

C761

Q610

IC502

IC702

R642

R645

R647

R649

R656 R

661

C649

C651

IC600

L900

R916

R918

Q605

C977

R431

R432

Q900

Q901

R900

R903

R905

R911

R914

CN

901

R920

R923

R927

C904

C906

C908

C910

C912

C915

C917

C919

C925

C926

C928

C930

C932

C934

C936

C938

C940

C941

C946

C953

C956 C

958

D900

C961

C962

C963

C969

IC900

IC901

IC902

S1

R430

R925

R928

C905

C914

C916

C918

C920

C922

C923

C927

C929

C931

C933

C935

C937

C939

C966

5VTXO

RXEO

RXEI

TXI

OPT6

OPT1

OPT2

DGND

AGND

POW

OPT9

OPT8

OPT11

OPT7

OPT5

OPT4

OPT3

OPT10

DTI

J79-0128-19 B/2

1PTT

Side_GSide_1Side_2

GND

5

D505

J79-0128-19 A/2

1LE

D_G

LED

_R/S

AV

E/5T

CS

BC

TV

2T

V1

5RC

GN

DG

ND

GN

DN

C+B+BN

CP

TT

Sid

e_1S

DO

1/P

CS

_RF

AP

CV

CO

_MO

DP

LDS

CK

1S

_DE

TN

C

/EM

GIFC

I2CC

KI2C

SD

A/T

_RA

SS

IST

VAG

CT

CX

O_M

OD

RS

SI

CV

NC

+B+BN

CG

ND

Sid

e_GW

/NS

ide_2

/DS

W/A

PC

SW

TH

PR

FAG

CG

ND

GN

DIF_D

ET

4950 2

+

S

NX-300 PC BOARD

TX-RX UNIT (X57-7370-10) (A/2)


TX-RX UNIT (X57-7370-10) (A/2)


PC BOARD NX-300

TX-RX UNIT

(X57-7370-10) (B/2)

Component side

Foil side


Ref. No. Address

IC404 10G

IC500 9B

IC501 8C

IC502 7E

IC503 5C

IC504 7H

IC600 4J

Ref. No. Address

IC700 8H

IC701 9E

IC702 7K

IC900 4P

IC901 9O

IC902 5N

Q503 7B

Ref. No. Address

Q504 3D

Q505 6C

Q507 7C

Q604 6J

Q605 3I

Q607 4I

Q608 4J

Ref. No. Address

Q610 5I

Q704 6L

Q900 9P

Q901 7N

Q902 7M

Q904 9O

Q905 4N

Ref. No. Address

D501 7B

D505 4B

D518 7D

D604 7J

D605 6I

D608 5I

D700 6L

Ref. No. Address

D900 8P

D901 5M

D902 5P

68 69


1

2

3

4

5

6

7

8

9

10

11

12

13

14

1

2

3

4

5

6

7

8

9

10

11

12

13

14

134 5

GG

D

DS

S

1

3 4

5

G

SG

D

GD

S

G

SG

D

D

S

G

D

GS

S

G

DS

G

DS

GD

S

G GD

DS

SR604

R605

R606

CF700

R612

R616

R617

R618

CN600

R622

C603

C604

C605

R646

C802

C803

C610

C804

C611

C612

C807

C615

C617

C618

C621

C632C635

C642

C643C645

C648

C654

C850

D600

C662

C663

C664

C665

Q703

C668

Q510

Q705

Q511

C671

L508

L703

L704

L705

L706

L707

L708

L518

L519

L710

C689

L711

L714

L521

L522

L716

L523

L717

C690

L524C691

L527

L721

L722

L725

XF700

R912

R915

R917

R919R728

R730

L780

R542

R737

R544R545

R739

C701

C704

R742

C706

C707

R744

R747

R749R752R753

C719

R757R759

R568

R760

R761

C725

R768

R769

R770

R771

R772

R773

C737

C738

R775

C739

R777

C547

R778

C548

R779

C741

C742

C743

R780

C744

C745

C746

R784

C748

R786

C556

C557

C750

C944

C751

C752

C753

R790

R791

C758

Q600

C565

C566

C567

Q603

C568

Q606

D702D703

D704

C765

D705

C573

C768

C575

C769

D515

D709

C576

D517

C578

L600

C579

L602

D710

L604

C771

D711

C773

C580

C581

C775

C776

C583

C778

C587

L610

L612

C780

L614

L615

C782

IC703

C786

C788

C791

C796

C798

C800

C801

C809

C810

C811

R663

R665

R666

R667

C647

C650

C652

C849

C660

C661

C666

D606

C667

D607

C669

Q706

Q903

L709

L713

L715

L720

L723

L726

CN

702B

PF

CN

902

R929

R740

R743

R745R

746R

748C901 R

750

CN

737

R762

R765

R774

R781

R783

C747

R785

C749

R788

C754

C755

C756

R799

C952 C

954

C764

D706

C767

D708

C770

C965

C772

C774

C968

C777

C779

C970

L613

C975

C783

C784

C785

C789

IC903

C794

C795

C799

R620

R623

R624

R626

R627

R630

R631

R632R

634

R636

R639

R644

C613

R650

C614

C623

C625

C627

C629

C634

C639

C670

Q601

Q602

L603

L605

L606

L607L609

L611

R609

R610

R628

C619

D601

Q700

Q701

L701R

701

R702

R710

R733

C700

C708

C712C

715

C718

C721

R571

C730

C732

C733

C734

C740

C790

R607

R608

C607

Q508 Q

509Q

512L509

L514

L515

L516

L517L520

L525

L526

L528

R543

R558

R559

R560

R561

R562

R563

R564R

565

R575

R576

C546

R599

D506 D

507

C570

D510

C571

D511

C574

D514 D

516

C577

D519

C582

C584

C585

C586

C588

J79-0128-19 B/2

TXD1 RXD1

J79-0128-19 A/2

12

25OPT626 POW

RXEITXI

TXORXEO

OPT7OPT2

OPT8OPT11

OPT9DTI

AGND5V

NCNC

DGNDAGND

OPT10OPT5

NCOPT4

26P_RD26P_TD

OPT1OPT3

+

S

D G

NX-300 PC BOARD

TX-RX UNIT (X57-7370-10) (A/2)


TX-RX UNIT (X57-7370-10) (A/2)


PC BOARD NX-300

TX-RX UNIT

(X57-7370-10) (B/2)

Component side

Foil side


Ref. No. Address

IC703 8H

IC903 7D

Q508 5P

Q509 6Q

Q510 7R

Q511 6R

Q512 7Q

Ref. No. Address

Q600 7P

Q601 7N

Q602 6N

Q603 4N

Q606 4L

Q700 9R

Q701 10O

Ref. No. Address

Q703 9K

Q705 10F

Q706 10E

Q903 8D

D506 4P

D507 4Q

D510 4Q

Ref. No. Address

D511 4R

D514 4Q

D515 4P

D516 4R

D517 4R

D519 5R

D600 7M

Ref. No. Address

D601 8O

D606 5H

D607 5G

D702 10I

D703 10I

D704 10H

D705 10E

Ref. No. Address

D706 8E

D708 8E

D709 6G

D710 7E

D711 6F

70 71

NX-300 SCHEMATIC DIAGRAMNote : The components marked with a dot () are parts of layer 1.

4.92V

-7.24V

3.28V

-7.13V

-9.74V

9.5mV

3.282V

3.28V

A

AA

AA AA

A

A

A

A

A

A

A

A

A

A A

A

A

A

A

A

A

A

A

A

R12

1

100k

R10

2

B30

-221

5-05

2SC4617(S)Q2

2SA1362-F(GR)Q1

SSM3K15TE(F)

L708

MA

2S11

1-F

D11

Q3

150

R40

2

150

1uC11

470p

C12

330

R16

0

R17

0

R15

4.7k

R14

D4

D3

C10

0.1u

R40

4D

8D

7

LCD BACKLIGHT

2SC4617(S)

SSM3K15TE(F)

12KEY BACKLIGHT

∗ R40

5∗ D

10∗ D

9

∗ D5

∗ D6B30

-221

5-05

∗ R40

3

1.5k

MA

2S11

1-F

∗ C10

8

A

0.1u ∗ C

114

1u

4.7k

∗ R10

6

A

∗Q103

2SA1832(GR)F

∗ D10

1

1.5k ∗Q102

∗Q101

330

470p

∗C115

0

∗R114 ∗R117

∗R112

0

∗ D2

∗ D1

1.5k

∗ R40

1

470k

∗ R10

8

Sid

e_G

S13

6_K

EY

O2

S10

98

S7

7

S4

6_K

EY

O1

6_K

EY

O0

S6

54

S3 S9

6

S12

0

S5

21

S2 S8

3

S11

Sid

e_2

Sid

e_1

6_/K

EY

I16_

/KE

YI0

470

R414

470

R415

470

R416

470

R144

470

R418

D40

11S

S38

8F

1SS

388F

D40

2

1SS

388F

D40

3

1SS

388F

D40

4

R417 0

R410 470

R411 470

R412 470

R413 470

/KEYI4

/KEYI3

/KEYI2

/KEYI1

/KEYI0

KEYO3

KEYO2

KEYO1

KEYO0

BLC

5 12347 69 81012 111620 19 18 17 15 14 13

CN701

R71

1

R71

3

R71

4

R71

5

R71

2

R71

0

R70

1

R70

2

R70

3

R70

4

R70

5

R70

6

R70

7

R70

9

BF

SR

2

BD

R2

/SC

SS

BC

LKR

2

BD

X2

BC

LKX

2

INT

3

RX

D0

SC

TX

D

0

R716

PT

T2

CN

702

PT

T1

CN

703

CN

704

RS

SI

CN

705

DO

WN

CN

706

GN

D

CN

708

RX

D

CN

707

TX

D

R11

5 1

00k

R11

8 4

7k

R11

1 1

00k

R11

3 1

00k

R11

6 4

7k

B12

B13

C11

C12

C13

D11

D12

D13

E10

E11

E12

E13

F10

F11

F12

F13

G10

G11

G13

G12

H13

H12

H11

H10

J13

J12

J11

J10

K13

K12

K11

K10

L13

L12

M13

N13

M12

N12

L11

M11

N11

L10

M10

N10

K9

L9

M9

N9

K8

L8

M8

N8

K7

L7

N7

M7

N6

M6

L6

K6

N5

M5

L5

K5

N4

M4

L4

K4

N3

M3

N2

N1

A1

B1

C2 C1

D4

D3

D2 D1

E4

E3

E2 E1

F4 F3

F2 F1

G2 G1

G3

G4 H1

H2

H3

H4 J1 J2 J3 J4 K1

K2

K3 L1 L2 L3 M1

M2

A13

A12

B11

A11

D10

C10

B10

A10

D9

C9

B9

A9

D8

C8

B8

A8

B7

A7

C7

D7

A6

B6

C6

D6

A5

B5

C5

D5

A4

B4

C4

A3

B3

C3

A2

B2

A18

A17

DV

SS

4

A16 D5

D4

D3

D2 D1

D0

RS

X2_

CLK

IN X1

HD

3

CLK

oUT

DV

SS

3

HP

IEN

A

CV

DD

3

CV

SS

5

TM

S

TC

K

TR

ST

TD

I

TD

o

EM

U1

oFF

EM

U0

ToU

T

HD

2

HP

I16

CLK

MD

3

CLK

MD

2

CLK

MD

1

DV

SS

2

DV

DD

3

BD

X1

BF

SX

1

DVSS7

BCLKX1

CVSS8

HD1

CVDD5

INT3

INT2

INT1

INT0

NMI

HBIL

IACK

BDX2

BDX0

HD0

DVSS6

DVDD4

HRDY

BFSX2

BFSX0

CVDD4

HINT

CVSS7

BCLKX2

BCLKX0

BDR2

HCNTL1

BDR0

BFSR2

BFSR0

BCLKR2

BCLKR0

DVSS5

HCNTL0

BCLKR1

CVSS6

CV

SS

1

A22

CV

SS

2

DV

DD

1

A10

HD

7

A11

A12

A13

A14

A15

CV

DD

1

HA

S

DV

SS

1

CV

SS

3

CV

DD

2

HC

S

HR

_W

RE

AD

Y

PS

DS

IS R_W

MS

TR

B

IoS

TR

B

MS

C

XF

HoL

DA

IAQ

HoL

D

BIo

MP

_MC

DV

DD

2

CV

SS

4

BD

R1

BF

SR

1

A19

A20

CVSS9

DVDD5

D6

D7

D8

D9

D10

D11

D12

HD4

D13

D14

D15

HD5

CVDD6

CVSS10

HDS1

DVSS8

HDS2

DVDD6

A0

A1

A2

A3

HD6

A4

A5

A6

A7

A8

A9

CVDD7

A21

DVSS9

IC102

1000

p

100k

R10

7

1k

R10

3

0.1u

C11

7

L711

0.1u

C11

3

D

D6

CN102

D7

D8

D9

D10

D11

D12

D13

D14

D15

D5

D4

D3

D2

D1

D0

A17A16

A0

A1

A2

A3

A4

A5

A6

A7

A8

A9

CN101

/RD

/HDS2

0.1u

C101

0.1u

C102

470k

R10

1

0.1u

C103

0.1u

C104

470k

C10

9

0.1u

C10

7

0.1u

C11

1

0.1u

C11

2

100k

R11

0

100k

R11

9

100k

R12

2

100k

R12

3

0.1u

C11

6

100k

R10

5

A10

A11

A12

A13

A14

A15

/WR

/CS

3

DSP

R141 100k

R142 100k

R143 100k

R145 100k

R146 100k

R147 100k

R193 100k

R194 100k

L712

R126 100

R127 0

R128 0

C119 1u

R135 100k

R136 100k

R137 100k

R129 100

R130 100

R131 100

C120 0.1u

R150 1k

100k

R139

0

R140100k

R132

C121 0.1u

BCLKR2

/MCCSAF

MCDOAF

/MCCSRCN

BFSR2

MCDOCN

BDR2

BCLKX2

/MCCSXCN

MCDICN

BDX2

INT3

MCSCKAF

FSDET

/DINT

/SYMTIM

/DWUP

/HR

DY

MCDIAF

F6

F5

F4

F3

F2

F1

E6

E5

E4

E3

E2

E1

D6

D5

D4

D3

D2

D1

C6

C5

C4

C3

C2

C1

A1

A2

A3

A4

A5

A6 B1

B2

B3

B4

B5

B6

G1

G2

G3

G4

G5

G6

H1

H2

H3

H4

H5

H6

NC

DQ

14

DQ

12

DQ

10

DQ

8

CE

A16

DQ

7

DQ

5

DQ

2

DQ

0

A0

A15

A11

A19

A20

A5

A1

A14

A10

A21

A18

A6

A2

A3

A7

RY

/BY

WE

A9

A13

A4

A17

WP

/AC

C

RE

SE

T

A8

A12

oE

DQ9

DQ11

VCC

DQ13

DQ15

VSS1

DQ1

DQ3

DQ4

DQ6

VSS2

IC101

FLASH

D9

D11

D13

D15

D1

D3

D4

D6

C105

0.01u

1000

p

C11

0

C106

1u

D

D14

D12

D10 D8

D7

D5

D2

D0

A2

A6

A18

A10

A14

A1

A5

A20

A19

A11

A15

A0

A16

/RD

/CS

0

CN

103

A3

A7

A9

A13 A4

A17 A8

A12

/FR

ST

/WP

/WR

L717

SRAM

IC103

G3

G2

G1

F6

F4

F3

F1

E6

E1

D6

D1

C6

C4

C3

C1

B6

B5

B4

A1

A2

A3

A4

A5

A6 B1

B2

B3

G4

G5

G6

H1

H2

H3

H4

H5

H6

CE oE

DQ

7

DQ

2

NC

3

NC

2

DQ

6

VS

S2

VC

C2

VCC1

VSS1

DQ1

A5

NC1

DQ5

DQ0

A7

A4

A0

A1

CE

2

A3

A6

A8

DQ

4

A2

WE

A16

A15

DQ3

A9

A10

A11

A12

A13

A14

470k

R12

0

1u

C118

L710

A14

A13

A12

A11

A10

A9

A15

A16

A0

A1

A3

A6

A8

A2

A5

A7

A4

D0

D5

D4

D1

D6

D2

D7

/RD

/CS

2

D3

/WR

INA

INB

GND

1

2

3

VCC

oUTY

5

4

IC104TC7SH08FU-F

100k

R13

3

L709

150

R14

8

0.01u

C123

VSS5 6

INTRA

4INTRB

CLKC7

3SDA

OSCOUT8

2SCL OSCIN

9

132KOUT VDD

10

RV5C386AIC106

X10

1

I2C

CK

I2C

SD

A

RTC

0.1u

C159 47k

R138

VoUT

CD

4

3

VIN

VSS

1

2

XC6109C29ANNIC105

0

R1490.01

u

C12

4

0.01u

C122

RESET

20V

5

19V

4

18V

3

17V

2

16V

1

15V

DD

14V

SS

13V

DD

12D

7

11D

6

10D

5

9D

4

8

D0

7

D3

6

D2

5

D1

4/W

R

3A

0

2/R

ES

1/C

S

CN1

LCD

11

12

13

14

15

16

17

18

19

20

B8

B7

B6

B5

B4

B3

B2

B1

oE

VCC

10

9

8

7

6

5

4

3

2

1

GND

A8

A7

A6

A5

A4

A3

A2

A1

DIR

IC401TC74LCX245FK

VCC

6

G

B1

8

7

B25

3

1

2

DIR

A1

A2

4GND

TC7WZ245FK-FIC402

D

D

D

L707

10k

R407

10k

R408

0.1u

C402

0

R406

100k

R11

220p

C40

D7

D6

D5

D4

D3

D2

D1

D0

0.1u

C401

C5

1u

C6

1u

C1

0.1

u

C2

1u

C3

1u

C4

1u

0.1uC7

R12

10

k

R10

10

k

R6

10k

R7

10k

R8

10k

R9

10k

R4

10k

R5

10k

/LCDRST

/CS4

/WR

100k -tTH

1

2.2u16

+

C403

2.2u

16C

404

+

+

C4052.2u16

0.1uC8

1000

p

C40

7

1000

p

C40

8

47

R409

100p

C41

12k

R3

100k

R2

1M

R11u

C40

6

IC403LM2682MMX

IC1LMC7101BIM5

1

2

3

4

C1-

C2+

C2-

VoUT

8

7

6

5

NC

C1+

VIN

GND

4

5 V-

INPUT-

5

3

OUTPUT

V+

INPUT+

1

2

4

XTN6

5Q

VDD

1

2

3

INHN

XT

VSS

IC107SM5023CNDH-G

D

D

100k

R16

6

C13

4

1kR165

0.01u

C130

470k

R162

22

R15

9

L713

VCC4 1

VC

18.432MHz

oUTPUT3 2

GNDD

D

0.01

u

GN

D3

oUT

Y4

INA

TC7SH08FU-F

1 2IN

BV

CC

5

IC109

D

0.01

u

C15

8

L705

D5

J4 F3

T1

N4

T17

T16

R13

F15

C18

C16

D6

D4

B16

C5

C3

A3

V2

V1

U2

U1

V18

V17

U18

U17

B18

B17

A18

A17

B2

B1

A2

A1

E6

L1 K5

J5 H5

G5

F5

E5

U3

M1

L3 K4

T3

H4

G4

F4

V16

E4

D3

U16

C17

T2

C4

A5

B3

P7

P8

P12

P13

K14

J14

E12

E11

E10

L5

P6

P11

L14

H14

E13

E7

M5

N5

P9

P10

N14

M14

G14

F14

E9

E8

B5

C6

B6

A6

U8

R8

R7

T7

V10

U9

V9

T9

C11

D12

C12

R5

R6

R2

P3

P2

M4

R1

N3

N2

P1

L4

M2

M3

N1

D8

D7

C7

D10

C8

D9

B7

C9

B8

A7

B10

B9

D11

A8

R3

R14 A

9

C10 V4

U5

T6

V5

U4

T4

V6

U7 T8

V7

U6

T5

G3 H1

H2

H3 J1 J2 J3 K1

K2

K3

L2 T10 R9

V11

U10 T11

V12 U11

T12

V13

U12 V

8

R12 R11

T13

U14

U13

H17

E16

P18

R17

G18

L17

N16 L15

V3

C2 F1

F2 E1

G2

G1

D2

E2

E3 D1

R10R4

P4

A4

B4

A10

A12

B11

A11

H18

J18

K18

L18

M18

N18

J17

K17

M17

N17

P17

K16

L16

M16

P16

J15

K15

M15

N15

P15

J16

H15

G17

H16

G15

F18

F17

G16

E18

E17

F16

D18

D17

B15

D16

C15

D15

E15

A15

A16

B14

C14

A13

D13

C13

B13

A14

B12

D14

R18

T18

R16

R15

U15

T15

V15

V14

T14

IFIR

MIC

IR

AD

C1

NC

30

NC

29

NC

28

NC

27

NC

26

NC

25

NC

24

NC

23

NC

22

NC

21

NC

20

NC

19

NC

18

NC

17

NC

16

NC

15

NC

14

NC

13

NC

12

NC

11

NC

10

NC

9

NC

8

NC

7

NC

6

NC

5

NC

4

NC

3

NC

2

NC

1

AG

ND

9

AG

ND

8

AG

ND

7

AG

ND

6

AG

ND

5

AG

ND

4

AG

ND

3

AG

ND

2

NC

34

AV

CC

10

AV

CC

9

AV

CC

8

NC

35

AV

CC

6

AV

CC

5

AV

CC

4

NC

36

AV

CC

2

AV

CC

1

DG

ND

15

DG

ND

14

DG

ND

13

DG

ND

12

DG

ND

11

DG

ND

10

DG

ND

9

DG

ND

8

DG

ND

7

DG

ND

6

DG

ND

5

DG

ND

4

DGND3

DGND2

DGND1

DVDIo7

DVDIo6

DVDIo5

DVDIo4

DVDIo3

DVDIo2

DVDIo1

DVDD10

DVDD9

DVDD8

DVDD7

DVDD6

DVDD5

DVDD4

DVDD3

DVDD2

DVDD1

GPIo11

GPIo10

GPIo9

GPIo8

GPIo7

GPIo6

GPIo5

GPIo4

GPIo3

GPIo2

GPIo1

GPIo0

SIMRST

SIMCK

SIMDT

SYMTIM

FSDET

TXRVE

TRAMP

TMoD

PSTPA

PSTIF

PSTPLL

RXRVE

RXSLT

PSRRF

PSRIF

PSRPLL

RSSIT

VFRM

VoINT

MCo2

MCCS2

MCCK2

MCCR1

MCCX1

MCo1

MCI1

MCCK1

MCCS0

MCo0

MCI0

MCCK0

AGCDACRX

D3

SC

K

SD

T

SP

CK

0

SP

I0

SP

o0

SP

CS

00

SP

CS

01

SP

CS

02

SP

CK

1

SP

I1

SP

o1

SP

CS

10

SP

CS

11

SP

CS

12

AD

C4

AD

C5

AD

C6

AD

C7

AD

C8

AD

C9

MIC

VR

SP

DA

C

MIC

AD

C0

MoD

DA

C

MIC

AD

C1

KE

YI0

KE

YI1

KE

YI2

KE

YI3

KE

YI4

KE

Yo0

KE

Yo1

KE

Yo2

KE

Yo3

KE

Yo4

PW

M1

PW

M2

TI

TD

I

TM

S

TD

o

TC

K

TR

ST

RT

CK

BS

CA

N0

BS

CA

N1

RS

T

RS

To

TE

ST

0

TE

ST

1

TE

ST

2

TE

ST

3

Boo

T

SQ

DA

C

AD

C0

DA

C0

IFR

AD

C3

AD

C2

FC

DA

DC

IFA

DC

P

IFA

DC

N

IFV

R

XTALI

XTALo

32I

DSPCK

CKo

USRCKI

ADD0

ADD1

ADD2

ADD3

ADD4

ADD5

ADD6

ADD7

ADD8

ADD9

ADD10

ADD11

ADD12

ADD13

ADD14

ADD15

ADD16

ADD17

ADD18

ADD19

ADD20

ADD21

DT0

DT1

DT2

DT3

DT4

DT5

DT6

DT7

DT8

DT9

DT10

DT11

DT12

DT13

DT14

DT15

WRITE

READ

BHE

BLE

CS4

CS3

CS2

CS1

CS0

HRADY

HDS2

TXD0

RXD0

RTS0

CTS0

TXD1

RXD1

TXD2

RXD2

TXD3

A

A

CN104

22

R158

/RINT

32K

A20

A19

A18

A17

A16

A15

A14

A13

A12

A11

A10

A9

A8

A7

A6

A5

A4

A3

A2

A1

A0

CN106

D15

D14

D13

D12

D11

D10

D9

D8

D7

D6

D5

D4

D3

D2

D1

D0

/WR

/RD

/CS4

/CS3

/CS2

/CS0

/HRDY

/HDS2

CN105

TXD0

RXD0

RTS0

CTS0

AMT

/OINT

RXD2

26P_TD

LED_G

LED_R

100k

R154

R155 47k

R156 4.7k

R157 4.7k

R16

0

R16

1I2

CS

DA

I2C

CK

R153

100k

I2CSDAI2CCK

RX

D3

SC

K0

TON

ES

W

SD

O0

/EV

CS

ST

SW

/WP S

CK

1

SD

O1

0

R41

9W

_/N

CV

S_D

ET

C16

0 6

800p

R16

3 1

00k

VO

X

VO

L

BAT

T

C13

1 0

.1u

C13

3 1

0u6.

3

+R

XA

F

MIC

MO

D

PF

KE

Y

A

NC

/KE

YI0

/KE

YI1

/KE

YI2

/KE

YI3

/KE

YI4

/KE

YO

0

/KE

YO

1

/KE

YO

2

/KE

YO

3

BE

EP

TON

E

32K

1k

R16

7

1000

p

C13

5

0R

168

/FR

ST

D

D

AS

QA

PC

RS

SI

RFA

GC

VA

GC

TH

P

AS

SIS

T 10u6

.3C

142 +

0.1u

C14

0

100k

R46

3

3p

C42

8

68k

R470

A A

10k

R17

0

6800

p

C16

1

MCSCKAF

MCDIAF

MCDOAF

/MCCSAF

MCSCKCN

MCDICN

MCDOCN

/MCCSXCN

/MCCSRCN

100p

C14

1

R172 0

D

0

R173

470k

R19

1

470k

R18

2

R187

R18

0 10

0k

R18

3 10

0k

R18

5 1M

D

/SCSW

D

/UDET

/EMG

PLDPLD

/DINT

/DWUP

/DRST

/LCDRST

D

IFC

5RC

T_/R

/SAVE

0

R171

MM

/APCSW

DSW

/5TC

100k

R18

9

47k

R18

4

47k

R18

6

47k

R18

8

FSDET

/SYMTIM1k

R190

1000

p

C15

6

1000

p

C15

7

1k

R192/MNDNU

ENC1

ENC2

ENC3

ENC4

C14

9 0

.01u

C14

8 0

.1u

C14

4 1

u

C14

3 0

.01u

C14

5 0

.1u

C14

6 0

.1u

C14

7 0

.1u

C15

4 0

.1u

C15

0 1

u

C15

1 0

.1u

C15

2 0

.1u

C15

3 0

.1u

C15

5 0

.1u

DSR

5UC

EXAMT

INAMT

DD

D

D

D

100k

R174

R175 100k

R176 100k

R177 100k

R178 100k

R181 100k

1k

C13

6 0

.01u

C13

7 1

u

C13

8 0

.1u

C13

9 0

.1u

L714

L715

L716

2.2k

R501

L403

1CN403

2

3

4

5

6

7

8

9

10

C459

470p

2.2k

R506

1k

R5091k

R510

1k

R508

1k

R507

1k

R504

VOL

ENC3

ENC4

ENC1

ENC2

A

470p

470p

C46

3

C45

7

470p

A A

C46

2

470p

C45

5

A

A

C45

6

470p

470p

6800p

C460

C461

7

8

9

6

5

4

1

2

3

CHANNEL SELECTORS1

POWER SW/AF VOLVR1

L101

L102

D

IC108

12 11 10 9 8 7 6 5 4 3 2 1

VIN

4

VoU

T4

VoU

T3

VIN

3 DI

CLK LD

VD

D

VIN

2

VoU

T2

VoU

T1

VIN

1

13 14 15 16 17 18 19 20 21 22 23 24

VIN

5

VoU

T5

VoU

T6

VIN

6

D0

VD

AR

EF

RE

SE

T

GN

D

VIN

7

VoU

T7

VoU

T8

VIN

8

M62364FP-FIC703

R75

2 1

00

R75

6 1

00

R75

9 1

00

R42

7 0

R42

8 0

0R

429

0

R74

0

SD

O0

SC

K0

/EV

CS

VC

O_M

OD

TV

1

TV

2

TC

XO

_MO

D

1000

p

C73

8

C74

0 1

000p

C74

3 1

u

SB1

+B

EN2

EN1

EN4

AGND

EN3

VOL

VOL_GND

33A

BL_

SB

33M A0

D

D

D

33M33M

32K

/RINT

32K

MC

SC

KC

N

33M

5A

SB2

31BU

33M

31B

U

33M

15M

0 0

0

00000000000

BF

SX

2

BD

X2

BC

LKX

2

BER_EN

5RC

/PTT/PTT

RSSI

/DR

ST

33M

SC

TAM

I

MA

N

ASQDETAUD_IREFC

AD12_IREFF

/MNDNU

33A-133A-1 33A-1 33A-1

33M

33MAS33MAS33MAS33MAS

33A

15M

RXD

TXD

00

BLC

/PSW

/BINT

SBC

+B

SB

1

33A

BAT

TB

ATT

33A

33M

/PC

S_R

F

1SS416

D102

LCONT

LCONT

LCONTLCONT

RESET RESETRESET

SPCS10 SPCS10 SPCS10

BLC BLC

SPCS10

RESET

RESET RESET

LCONT LCONT

5RC 5RC

BCLKR0BCLKR0

BCLKX0 BCLKX0

HD0 HD0

HD2HD2

X2_CLKIN X2_CLKIN

HD2HD2 HD2 HD2

GPIo7 GPIo7 GPIo7 GPIo7

18

2324

IFADCN

IFADCN IFADCN

LCD CONTRAST

DOUBLINGVOLTAGE

INVERTER

BUS SW

IC401,402

12KEY BACKLIGHT SW

LCD BACKLIGHT SW

D11,Q1-3

D101,Q101-103

BUFFER

2 INPUTAND GATE

ASIC

AND GATE2 INPUT

REVERSECURRENTPREVENTION

CONVERTERD/A

12KEYCONTROL

D401-404

D

33M

D

VOL SW/ENC

3276

8Hz

X102

X53-4260-XX-10-11 SSM3K15TE(F)2SA1832(GR)F

D101D1NONOK

MA2S111-FB30-2215-05K3

Q103NO

Q102NO

2SC4617(S)

Q101NO NO

R117

0NO

R114

330NO

R112

0NO

R108

470k

R106NO4.7k

C115NO

470p

C114NO1u

NOC108

0.1uNO

R401

1.5k

R403 R405NO1.5k

NO1.5kB30-2215-05

NOD2

B30-2215-05NOD5

B30-2215-05NOD6

B30-2215-05NOD9

B30-2215-05NOD10

33A-133A-1


33M

6

5

5

5

5

5

5

5

5

5 5 5

5 5

5

5

6

6

6

6

6

6

6

6

6 6 6 6

6

6 6

6

6

6

77

7

7

7

7

7

7

7

7

7 77 7

7

7

7 7 7 77

7

58 8

8

88 8

8

8 8 8

8

9

9

9

9 9 9 9

9

9 9 9 9 9 9 99

11 11

11

11

11

11

11 11 11 11 11 11

11

12

12

12

12 12

12

12 12 12 12 12 12

12

12

1313 13 13

13

13 13 13 13 13 13 13 13

1414

14

14

14

14 1414 14 14

14

14

14

14

15 1515

15

15

15

15 15 15

15

15

15

15

15 15

1616

16

16 16 16 16 1616

16

16

14

14

17 171717

17

17

17

17

17

18 1818

18

18

18

18 18 18 18

18

19

19

19

19

20

20

21

21

21

3.284V

3.82V

1.5V 3.82V

3.82V

3.31V

3.82V

7.5V4.99V

7.55V

6.05V

7.49V

7.49V

3.32V

3.32V

2.98V3.24V

3.32V

7.49V

1.33V

1.33V

R : 5.14V

5V

3.32V

7.46V

A

A

A

A

A

A

A

A

A

A

A

A

AA

A

A

A

AA A

A

A

AA

A

A

A

A

A

A

A

A

A

A AA

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A A

A A

A

A

R437

470

L701

R748

10k

∗R848

∗R849

DI

GND

IC701

18 17 16 15 14 13

12

11

10

9

8

7

1 2 3 4 5 6

19

20

21

22

23

24

A0

P17

P16

P15

P14

P13

P12

P11

P10

GND

P07

P06

P00

P01

P02

P03

P04

P05

SCL

SDA

VCC

INT

A1

A2A

100k

R71

7

L706

470

R730

1MR72

3

R72

4 1

00k

R72

6 1

00k

0.1u

C701

R72

8

1MR72

7

1M R73

2

R73

1

1MR72

9

1M 1M

OPT1OPT2OPT3OPT4OPT5OPT6

OPT7

OPT8

OPT11

26P_TD

26P_RD

R71

9 1

00k

R71

8 1

00k

R72

1 1

00k

R72

0 1

00k

R72

2 1

00k

I2SDA

I2CCK

26P

_TD

RX

D2

426P_TD

1OPT1

2

326P_RD

OPT3

9AGND

5

6

NC

OPT4

7

8

OPT10

OPT5

11

10AGND

AI

13

12

5V

AO

16

15

14

OPT9

AGND

DTI

17

18OPT11

OPT8

21

RXEO

20

19OPT7

OPT2

23

22

TXO

TXI

26

OPT6

24

25

RXEI

POW

CN710

OPT6

OPT7

OPT2

OPT8

OPT11

OPT5

OPT4

26P_TD

26P_RD

OPT3

OPT1

OPT6

TXI

RXEI

DTI

OPT9

CN709

A

OPT10

RXEO

TXO

AO

AI

C703

4.7u

F701

A

XC6204B332M

NC

5VOUT

4CE

VSS

VIN

3

2

1

IC4041SS388F

D416

1u

C40

9

1u

C41

2

0.01

u

C46

7

47k

R548

L702

XC

6205

B15

2PR

N

VS

S

NC

2 3C

E

1V

oUT

VIN

5 4

IC40

51u

C41

0

10

R725

10u

C41

3

IC406XC6204B332M

C411

1u

4

5

NC

VOUT

C46

8

0.01

u

C41

4

A

3

2

1

CE

VSS

VINL704

R549

47k

1SS388F

D417

1u

LT1616ES6-PBF

GN

D

Boo

ST

2 3F

B

1S

W

VIN

SH

DN

6 5 4

IC407

HR

B05

02A

D40

6

22u

L401

D40

5

1SS

388F

C41

5

10u

68k

33k

R42

5 0.01

u

C41

8

470k

R43

14.

7u

L402

C41

6+

10u1

0

R42

4

C41

7

220p

C41

9

1

VIN

VoU

T

CE

32N

C

VS

S

5 4

XC6204B502PRIC708

1SS

301F

D70

1

1u

C74

2

470k

R79

1

1uC75

1

0

R43

2

SSM6N16FE-FQ402

100k

R438

100k

R439

470k

R45

2 470k

R456

R435

R436

100k

100kSSM6N16FE-F

Q401A

470k

R45

1 470k

R454

MA

2S11

1-F

D40

7

2SA1955A-FQ403

Q404SSM3K15TE(F)

SB2

6800

p

C42

1

470k

R45

0

150k

R44

5

560k

R44

4

10k

R44

8

470k

R44

9

BAT

T

Q408EMD12

D4081SS301F

1SS301FD412

Q4132SA1955A-F

Q412SSM3K15TE(F)

Q4092SA1955A-F

Q410SSM3K15TE(F)

D41

3

1SS

388F

D411

1SS416

470k

R49

2

10u

C43

1

10u

C43

3

1k

R47

9

10k

R48

5

1u

C44

8

10k

R46

1 470k

R46

4 10k

R466

10k

R465 470k

R469

470k

R48

1

3.3k

R47

3

0

R49

3

470p

C44

2

CN

401

NC

VIN

32

4V

SS

VoU

T1IC414

XC61CC5602NR

BATT INT

16

23

VIN

VoU

T4 5

VS

S

VIN

2

NC

oN/o

FF

S-812C31BPI-GIC416

1u

C454

CN402POWER SUPPLY

EMD12Q414

A

Q415EMD12

A

2

1

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

R511 1k

R512 100

R513 1k

R514 1k

R515 1k

R516 100

R517 1k

R518 100

R519 1k

R520 1k

R521 1k

R522 1k

R523 1k

R524 1k

R525 1k

R526 1k

R527 1k

R528 1k

TCXO_MOD

5RC

VAGC

TV1

ASSIST

TV2

T_/R

I2CSDA

/5TC

I2CCK

/SAVE

IFC

LED_R

/EMG

LED_G

RSSI

CV

1000p

C465

6800p

C466

AR529 100

R530 100

R531 100

R532 1k

R533 100

R534 100

R535 100

R536 1k

R537 1k

R538 1k

R539 1k

R540 1k

R541 100

R542 1k

R543 100

R544 1k

R545 100

/PTT

VCO_MOD

Side_G

Side_1

Side_2

W_/N

SDO1

/PCS_RF

DSW

/APCSW

THP

PLD

RFAGC

SCK1

S_DET

A

CN404

1 32

45

VIN

-

VD

D

VIN

+

VoU

T

VS

S

MCP6021-E/OTIC410

10

R486

0.01u

C432

27k

R480

33k

R49

80.

01u

C44

4

0.01

u

C43

4

10k

R48

2

0.01u

C451

22k

R49

9

470k

R74

1 0.1u

C719

33k

R747

10k

R74

3

82k

R739

680p

C716

27p

C70

7

1000p

C734

15k

R77

1

33k

R77

847p

C804

6.8k

R78

5

1kR790

ASQAPC

2SA1832(GR)FQ701

ASQDET

PLD

OPT10

TC75W51FK(F)IC702

0.1uC723

68p

C70

6

0

R751

0

R850

82k

R736

3300p

C713

1000

p

C80

3

IN+

B

IN-B

oUT

B

VD

D

5 7 86V

SS

4

IN+

A

IN-A

oUTA

2 13

TC75W51FK(F)IC711

3 12

oUTA

IN-A

IN+

AIN

-B

oUT

B

VD

D

4V

SS

IN+

B6 875

R798 100k

10k

R803

C752 100p

C753 100p 330k

R799

0 01

u

C76

0

C755 47p

ASQ DET

SSM3K15TE(F)Q703

Q7042SC4617(S)

0.01

u

C80

2

0.22u

C771

1000

p

C76

80.

1u

C76

5

470

R80

8

1000pC764

330k

R809

3.3k

R81

0

D705RB706F-40

MA2S111-F

D702

10k

R819

39kR824

-t

100k

TH

701R82

1 1

00k

C78

0 0

.22u

180k

330k

R82

7

R82

6

2SB1132(Q,R)Q406

UMG3NQ407

Q405SSM6N16FE-F

D409

MA2S111-F

D410MA2S111-F

15k

R44

1

470k

R44

31k

R44

2

100k

R44

7

100k

R45

7

R46

2

1k

R459

0.1u

C42

5

0.1u

C42

9

22k

R47

2

0

R471

33k

R47

4

0.22u

C437

0.22u

C438

22k

R484

C440 0.1u

22k

R489

22k

R490

1k

TPA6201A1DRBRIC413

1

2

3

4

SHUTDoWN

BYPASS

IN+

IN-

8

7

6

5

Vo-

GND

VDD

Vo+

R496 100k

C44

5

1u

C44

9

100k

R495

1000

p

SHUTDoWN

BYPASSC439 0.1u

0.22u

0.22u

C436

C435

1

4

3

2

22k

22k

R488

R487

Vo-

Vo+

VDD

GND

IN-

IN+

100k

R494

8

5

6

7

TPA6201A1DRBRIC412

A

R497 100k

1000

p

C44

7

1u

C45

0

R47

50.

1u

C43

0

33k

IC408TC75S51FE( F)

IN+

IN-

VSS2

3

1VDD

oUT

5

4

8 7 6 5

VC

C

CoN

T1

oUT

_IN

2

IN_o

UT

2

1 2 3 4

IN_o

UT

1

oUT

_IN

1

CoN

T2

GN

D

IC409TC7W66FK-F

0.01

u

C42

0

0

R433

1k

R45

5

0.1u

C424

100k

R458

100k

R45

3

39k

R43

4

R446 270k

C422 10p

100k

R46

7

1k

R46

0

0.01

u

C42

7

SP DRIVE

D18

HZ

C6.

8-E

D19

R20 1k

R21 1.2k

R22 1k

R23 1k

R25 1.2k

R24 1k

R26 1k

L1

L2

100p

C16

100P

C17

470p

C13

470p

C14

0

R40

14CN23

13

12

11

10

9

8

7

6

5

4

3

2

1

6_/KEYI0

BL_SB

6_KEYO1

6_KEYO0

6_KEYO2

6_/KEYI1

A

CN22 CN24

MIC

SP

6KEY

/PCS_RF

IF_DETNC

GND

S_DET

GND

SCK1

RFAGC

PLD

THP

VCO_MOD

/APCSW

APC

/DSW

LED_R

PGND

NC

Side_2

SDO1

W_/N

Side_1

Side_G

PTT

AGND

NC

+B

+B

+B

+B

NC

NC

AGND

CV

RSSI

PGND

TCXO_MOD

5RC

VAGC

TV1

ASSIST

TV2

/T_R

SBC

I2CSDA

/5TC

I2CCK

/SAVE

IFC

LED_G

/EMG

6_/KEYI0

BL_SB

6_KEYO1

6_KEYO0

6_KEYO2

BL_SB

6_/KEYI1

SP-

SP-

SP+

SP+

EMC

ME

AGND

oUT

VDD

TC75S51FE(F)

1

3

2VSS

IN-

IN+

IC704

4

5

A GND

TC7W53FK(F)IC707

5 4

VCC

CH0

CH1

8

7

6

CoMMoN

INH

VEE

1

2

3

0

R426

1200

p

C71

4

1u

C709

56k

R738

56k

R746

0.1u

C711

0.1u

C715

68k

R753 180p

C725

0

R766

0.1u

C726

47k

R7770.01u

C745

1k

R79

3

47k

R735

C71

2 330k

R765

0.1u

C727

C72

410k

R750

560k

R754

A

0.01

u

A

6.8k

R74

5

A

0.01

u

A

BEEP

RXEI

RXEO

RXAF

/SCSW

AMT

5

7

8

6IN+B VSS

4

IC713TC75W51FK(F)

VDD

oUTB

IN-B IN+A

IN-A

oUTA

2

1

310pC761

470k

R80

2

0

R80

4

470k

R800

0.1u

C756

100k

R81

5

1u

C778

100k

R818

0.01u

C779

1000p

C777RXAF SMF

RF AF SW

A:VREF/B:RX SUM

IC709TC7W53FK(F)

VCC1

CoMMoN

CH0

CH1

A

8

7

6

5GND

VEE

INH

4

3

2

SSM3K15TE(F)A

Q702

0.1u

C705

4.7k

R749

0.01u

C746

47k

R779

220k

R768

330k

330k

R770

0.01u

C732

0.01u

100k

R755

0.01u

C722

10k

R75

8

0.01

u

C71

7

10k

R742

15k

C71

0

47k

R733

0.1u

0.01u

C720

TONE

TONESW

STSW

OPT6

AO

AI

OPT9

C704 R769C731

0.01

u

R73

7

A1k

R797

47k

R805

47k

R806

82k

R81

1

1k

R807

560k

R814

0.01

u

C76

3

VGS REC SEL

SIDE TONE MUTE

1V

CC

CoM

MoN

234

INH

VE

E

GN

D5 6 7 8

A CH

1

CH

0

IC714TC7W53FK(F)

VoU

T

VIN

NJM

2880

U10

5ZB

1 32G

ND

NoI

SE

BY

PAS

S

CoN

TR

oLIC41

1

45

1SS416

D12

D14

1SS

416

1SS

416

D15

1SS

416

D13

1SS

416

D16

2

IC41

5T

C7S

ET

08F

U-F

INB

15

VC

C

GN

D

INA

34

oUT

Y

1SS416

D414

1SS

416

D41

5

Y2

Y1

TC

7WH

126F

KIC

417

A1

G1

321V

CC

G2

4A

2G

ND

8 7 6 5

10k

R503

1k

R54

7

100

R34

1k

R54

6

0.01u

C453

10k

R502

L3

RX

D0

RX

D0

/SC

SS

BF

SX

2

BE

R_E

N

DS

R

TX

D0

SC

TX

D

0.01

u

C45

2

100k

R49

1

47k

R500

0

R47

8

0

R46

8

47k

R48

3

0

R47

7

RT

S0

5UC

RX

D3

PF

KE

Y

/PT

T

/UD

ET

CT

S0

470

R19

8.2k

R18

1u

C44

6

1uC44

1

0.01

u

C44

3

SS

M6N

16F

E-F

Q41

1

TC7WH125FUF

2

1G1

A13

4Y2

GND

VCC8

IC418

G2

Y1

A2

7

6

5

BE

R_C

LK

BE

R_D

ATA

BE

R_E

N

0.01u

C464

DA

221

D23

D22

DA

221

D17

EM

Z6.

8N

C29

10

0p

C30

10

0p

C31

10

0p

C33

10

0p

C34

10

0p

C36

68

00p

C38

10

0p

1k

R28

1k

R29

100

R30

1k

R31

100

R32

L8

100

R35

100

R33

L7

L6

L5

L4

C23

10

00p

C28

10

0p

C24

10

00p

C25

10

00p

C26

10

00p

C27

10

00p

C32

10

0p

C35

10

00p

C37

10

00p

NN

CD

6.8G

-AD

21

NN

CD

6.8G

-AD

20

CN405

SSW1

2SP+

3SP-

4MSW

5EMC

6ME

7PTT

8PF

9OPT

10E

11

TXD12

RXD13

5V

14NC

UN

IVE

RS

AL

CO

NN

EC

TOR

DA221D707

RB706F-40D706

Q7062SA1832(GR)F

2SC4738(GR)FQ705

RB706F-40D703

D704RB706F-40

B : VOXA : MIC SUM1/

MIC AGC

SCSW(MIC)

MOD SMF

MIC AA

A : MOD SUM/B : MIC SUM26 875

3 12

oUTA

IN-A

IN+

AIN

-B

oUT

B

VD

D

TC

75W

51F

K(F

)IC

705

4V

SS

IN+

B

TC75W51FK(F)IC710

TC75S51FE(F)IC706

VSS1

3

2

IN-

IN+

oUT

VDD

4

5

IN/o

UT

VC

CIC71

2T

C7S

66F

UF

4 5

CoN

T

oUT

/IN13 2

GN

D

IN+VDD

IC715TC75S51FE(F)

4

5

oUT

VSS1

3

2

IN-

TC75W51FK(F)IC716

0.1u

C708

1500

p

C71

8

22k

R744

22k

R757

22k

R761

330p

C728

0.1u

C73

6

18kR775

6800

p

C73

9

0.1u

C799

0.1u

C721

1200p

C735

22k

R762

330p

C730

1500

pC

800

R764 22k

R763 22k

0

R78

6

100k

R784

47p

C74

9

100k

R79

4

33k

R796

4.7u

C758

4.7u

C757

0

R79

547p

C750

120k

R787

18k

R783

47k

R801

0.1u

C762

0.01

u

C75

9

0.1u

C76

6

0.1u

C76

7

1uC78

1

1u

C78

2

0.1u

C74

8

47k

R78

8

150k

R78

90.

1uC

747

100k

R78

2

100k

R78

00.

1uC

737

0

R44

0

0

R82

9

68k

R85

2

68k

R85

1

10k

R822

10k

R823

1M

15p 47k 0.1u 47k 1u

33k

R839

0.1u68k

0

R834

560k

R84

1

12k

R840

0.039u

C791

15k

R835

68p

C789

680k1u

C787

470k

R83

1

0R828

100k

10k

R82

0

47p

C775

68k

R816

0.22

u

C78

5

27k

R81

3

0.02

2u

C80

1

0.01u

C772

R767 10k

0.01

u

C74

4

0.01

u

C78

6

5.6k

R81

2

oUTA

IN+

B568 7

IN-B

oUT

B

VD

D

VS

S431 2

IN-A

IN+

A IN+

B

oUT

B

VD

D2

oUTA

1

VS

S43

IN-A

IN+

A

78 6 5IN

-B

CN711

CN712

R82

5 R833

R830

C788 R832 R836C790 C792

R837 C793

R838

560k 0.1u

DT

I

TX

I

C794

TX

DR

XD

24 18

23

33A 5A

W_/

N

APC

AP

C10

R42

00

/OINT

10

21

21

TXO

VO

X

MM

/SC

SW

33A

+B

+B

R84

5

R84

7

1.8k

100k

R84

2

100k

C79

810

u10

470p

C15

0.1u

C79

6

A

AA

R843

1k

A

2SJ243-AQ707

4.7k

R84

4

AQ5

2SJ347F

Q4

100k

R27

1u

C797

SSM3K15TE(F)

0.01

u

C79

5

R846

470

+

33A

Side_1,Side_2,Side_G

5A33M

33A

5A

INAMTEXAMT

OPT713 AGND

OPT3

OPT1

2

3

1

26P_RD

OPT3

OPT1

4 26P_TD

26P RD

26P TD

oPT9

5V

RXEo

TXo

DTI

OPT9

RXEO

5V

TXO

10

11

9

NC

AGND

DGND

12 NC

DGND

AGND

OPT5

OPT46

7

5 NC

OPT10

OPT4OPT10

8 OPT5

oPT11

DTI

oPT8

oPT6

TXI

TXI

OPT11

OPT6

RXEI

RXEI

OPT8

oPT221 TXOTXO

OPT2

OPT8

OPT7

OPT9

DTI

5V

20

OPT7

18

16

19

17

OPT2

OPT8

OPT11

OPT9

14

15

DTI

5V

OPT11

oPT4

oPT5

oPT7

oPT1

OPT1

OPT4

OPT2

POWOPT5

POW

OPT6

POW26

24

25 OPT6

POW

RXEI

CN737

TXI

RXEO22

23

TXI

RXEORXEI

oPT10

oPT3

AGND

OPT10

AGND

OPT3

DGND

DGND

TXO TXO

IFADCN IFADCN

MO

DM

IC

IFADCN IFADCNIFADCN IFADCNIFADCN

SP- SP-

SP+ SP+

EXTSP+ EXTSP+

EXTSP- EXTSP-

ME ME

MM MM

IFADCN IFADCN

15M

33A

5A

SB2

SB

C

SBC SBC

/BIN

T/P

SW

33M

SB

1

SB1 SB1

SCTAMI

31BU

+B +B

33A 33A

PGND

PG

ND

PGND PGND

SQL BPF/BPF/SQL DC AMP

APC LPF

OPT SW

NOISE AMPSQL

DETECTORNOISE

PLDCONTROL

RX SUMMING AMP1.65V REF/

SCSW(RXAF)

RX AF LPF

SMFAPC/ASQ

OPT SW

TONE SW

AUDIOAMP

AUDIOAMP

AF SW

AF AMP

VOLTAGE

(AF AMP)REGULATOR

Q406,407

AF AMP SW

Q405

LPFMODULATION

SUMMING AMPMOD/MIC

VOX AMP

VOX AMP

MIC AMP

MIC SW

DETECTOR

DETECTOR

MICMUTE

MICSHIFTSW

SHIFTMIC

CONTROL

REVERSECURRENT PREVENTION

D12-16

CONVERTERLEVEL

Q411

VOLTAGE REGULATOR (50U)

BUFFERDUAL BUS

IC417

ANDGATE

IC415

2 INPUTBUFFERDUAL BUS

RXD CONTROL

D22

D23

TXD CONTROL

VOLTAGE DC/DC CONVERTER

D405,406,IC407

VOLTAGE REGULATOR (15M)

IC405

IC406



LEVEL CONVERTER

SB2 SW

SB2 SW CONTROL

CURRENTREVERSE

PREVENTION

33M

15M

33A

5A

I/O CONTROL

RESET

DC SW

DC/DCCONVERTERCONTROL

D408

CONTROLDC SW

DC SW

Q412,413

REGULATORVOLTAGE

DC SW

CONTROLRTC BATT

CONTROLRTC BATT

D413

IF AMP

DC SW

SP CONTROL

CONTROLPTT RF OPT

CONTROLEMC MSW SSW

5A SW

TX LED SWITCH

D414

RX LEDSWITCH

NO-11 0K30-10 NOK

R848 R849X53-4260-XX

1000

p

C47

0

L410

L409

1000

p

C46

9

+B

0.25A

NOISE SWW/N

VOX

DETECTOR

ABSORPTIONSURGE

ABSORPTIONSURGE

D17

D18,19

33MCONTROLREGULATOR (33M)

CONTROL33A

DC SWSWITCH UNIT (X41-3720-10)

TX-RX UNIT : OPTION BOARD SECTION (X57-7370-10) (B/2)

TX

-RX

UN

IT(X

57-7

370-

10)

(A/2

)-C

N90

0

9 9 9 9 99 9 9 9 9

9

9 9 99

9

9

13 13 13 13 13 13 13

13

14

14

14

14

14

14 14

15

15 15 1515 15 1515 15 1515

15

15 15 1515 15

15

15

16 16 1616 16 16 16

16

13

16

18 18 18 18 18 18 18 18 18 18

18

18

9

9

9

19 19 1919 19 19

19

19 19 19 1919

19

19 19

20 2020 20

21 21 2121 21 21 21 21 21 21

21

21 21 2121 21

21

22

22

2222

22 2222

14

23 2323

23

23

23 23 23 23 23 23 23 23

23

470p

CN701

10kR795

2SC4215-F(Y)

68u

L901

SSM6L05FU-F

1

3

2

C95

8C

957

470k

SSM6L05FU-F

GND48 R901

F900

IF_DET

470p

C90

0

1000

p

S

C90

2

50

49 NC

L900

D90

1

1SR

154-

400

47p

C942

C94

7

R9040

470p

0

0R907

R90

5

10

C94

8

1u33

C95

3C95

0

C94

9

1u

+

4.7u

16 R91

4

Q901SSM6L05FU-F

470k

R90

6

R91

0

R909

R913

1k

C95

410

00p

NC28

C95

2

0.22

u

VCO_MOD

/APCSW

APC

/DSW/DSW38

S_DET

SCK1

GND

PLD

RFAGC

VCO_MOD

THP

APC

/APCSW

43

47

46

45

44

42

41

40

39

C941 47p

C940 47p

C938 47p

C939 47p

C936 47p

C937 47p

C934 47p

C935 47p

C933 47p

/PCS_ RF

SDO1

Side_2

Side_1

W_/N

PTT

Side_G

GND

33

37

36

35

34

32

31

30

29 NC

C932 47p

C930 47p

C931 47p

C928 47p

C929 47p

/PCS_RF

Side_2

SDO1

Side_1

C926 47p

C927 47pSide_G

PTT

SCK1

PLD

R91

2

470k

R91

1

470k

HSC119D902

R908

47k

C95

1

0.22

u

R91

5

GND

GND

NC23

27

26

+B

+B

25

24

+B

+B

22

21

NC

20

19

CV

C925

47p

R432 0

C923 47p

C922 47p

R430

0

GND

RSSI

5RC

TCXO_MOD

TV1

VAGC

ASSIST

/T_R

TV2

SBC

18

17

16

15

14

13

12

11

10

9

C919 47p

C920 47P

C917 47p

C918 47p

R431 0

C916 47p

C914 47p

C915 47p

C912 47p

1000

p

C95

6

1000

p

C95

5

R91

7

63

CLK

CC/GAIN

0.1u

CE/SS

VIN4

150k

5

180p

C96

2

R92

3

R92

647

0p

C96

712

k

22k

VoUT/FB

VSS

XC9101D09AKR

LSEN

EXT1

2

IC901

C96

6

7

8

22p

R92

533

0k 1u

C97

2

1u

C97

3

C97

4

1u

450kHz

R709

R710

1000

p

0.22

uC

9702

C96

8

10k

R92

1

47k

1k

R919

1k

Q903

R91

6

470k

C97

7

0.47

u

Q902

R918

C96

9

2SA1955A-F

VSS

IN- oUT

IC900TC75S51FE(F)

IN+ VDD

R9224

R92

0

47k

C96

3

1u

1k

5

C96

1

470p

NP/VREF

R929

1k

oN/oFF

GND

3

Q905

4

C96

5

0.22

u

1000

p

C97

11u

R79

8

47

10

0.1u

C72

3

R714

C71

3

10u

R927

1k

C96

4

0.22

u

VoUT

TK71733SIC903

VIN1

1u

5

IC902TK11250CUCB

4

1u 5

6VoUT

GND

VIN3

GND

NP

CoNT

2

1

L780

0

7p

C70

7

68p

C71

2

68p

Q7002SC5108(Y)F

C711

0.1u

C710

C7090.1u

10

C70

3

0.1u

0.1u 0

R703

OUT

R70

1

C700

C70

10.

01u

560

L701560n

R571

R702

330k

C706

10p 47n

L703

100p

C704

47p

C708

AMDEToUTPUTFMDEToUTPUT

C792

0.1u

OUT INC727R796R705

0 0

R71

8

0.1u

18k

R72

0

2.2k

VS

S

VD

D

MCP6021-E/OT

R70

4

1k

IC700

1V

oUT

2

5

VIN

-

3

VIN

+ C71

7

0.01

u

4

R71

2

10k

0.1u

10u

C72

4

C71

9

R71

7

47k

CF701

0.01

u

C72

5

R727

2.2k

RSSI

R726

C72

9

CN700

18k

0.47

u

RSSIoUTPUT

RFAGCoUTPUT

AGCAMPoUTPUT

AMAGCINPUT

NoISEAMPINPUT

NoISEAMPoUTPUT

CoMPINPUT

CoMPoUTPUT

RFINPUT

100n

12

11

10C720

10p

C721

0.1u

C718

0.1u

C790

0.1u

IN

FMIFDECoUPLING2

FMIFDECoUPLING1

AMIFDECoUPLING

QUADINPUT

LIMoUTPUT

9

FMIFINPUT

AMIFINPUT

8

7

6

5

TK10931VTL-G

1

MIXoUTPUT

VCC

oSC(E)

oSC(B)

4

3

2

IC701

C715

0.01u

20

AMSW13

14

15

16

17

18

19 R719

270k

24

GND

21

22

23

R73

00C728 0.1u

R721 10k

R725 22k

C759 0.1u

R722 4.7k

C760 0.1u

R731

10k

C730

R724 100k

0.01u

R733

560k

Q701

L704

1.8u

0.01

u

C73

3

L705

R72

8

220

C73

2

R504100k

R50

5

C94

6 4

7p

LED_R

I2CSDA

I2CCK

/5TC

IFC

/SAVE

/EMG

LED_G

8

7

6

5

4

CN900

3

1

2

C910 47p

C908 47p

C906 47p

C907 47p

C905 47p

C904 47p

Side_2

Side_1

Side_G

SIDE 2

SIDE 1

PTT GND

PTT

3

5

4

R928

S1

C97

6

47p

0

CN901

2

1

C94

5 4

7p

C94

3 4

7p

C91

3 4

7p

C50

3

0.1u

R50

0

0.1u

C50

0

R50

1

C50

2

470p

2

100k

INPUT+

3

100k

V+

INPUT-

4

OUTPUT

LMC7101BIM5

1

IC501

TCXO MOD

19.2MHzX500

R502

V-

120k

5

0

R57

4C

506

10p

C50

9

10p

LR470p

R902

UMG9NC901

C944

470p

Q900

390

R900

R903

D900

10

LG

GND

LM73CIMKX-0

SMBCLK

SMBDAT

C50

1

VC

100p

6

5ALERT

820

4VDD

C50

5

VCC

oUTPUT

GND

ADDR1

2

100p

C50

8

0.01

u

4.7u

L500

10

C50

4

0.01

u

R503

10

IC500

3 R572

R54

8R

547

C55

4

R545

R544

C55

5

FvcoFin

C54

10.

047u

35

C53

50.

15u3

5

100p

100p

0

1u

2SC5383-T111

D50

1

C52

0

HS

C11

9

R51

5

4.7k

20

R511 10

47k

R50

6

C51110u

R512 10

R513 10

4.7k

R56

7

19L598

C51

6

VCCcp218

VC

C d

igita

l

C517 100p

C519 100p

Q503

VCC

2524232221

Clo

ck

/CS

Dat

a

GN

D

Max

out

Mod

in

100p

1

C522

R519

10

R53

3

180k

R52

0

1kC

529

3

2

C52

4

100p

100p

4

R53

4

47k

R566

470k

C54

2

10M

0.1u

R54

6

100k

LMC7101BIM5

1

IC503

5

C53

6

R52

3

C52

8

100p

C527

100p

1k

DA221

47p

R539

D505

C54

60

4700

p

R54

2

R53

6

0

R53

5

150

R543

0

0

11R

514

C515IC502

L599

0.01

uR

570

0 GN

D O

SC

13

/Fvco

CPout2

VCC cp2

LD/PS2

17

16

15

14

12

LD/PS1

VCCcp1

CPout1

/OS

C A

C G

ND

OS

Cou

t

VC

C S

OC

8

OS

C910

NC

7

6

/Fin2

3

4

5

C521

10

R532

C53

3

470p

R522

0.1u

C526

R527

+

0

C53

4

100p

+

0

R538

390

R53

1

68k

47k

R53

0 1k

L503

R54

1

10k

Q5042SK879-F (Y)

R52

9

1k

R537

CV

CN500

0

R576 D511L509

L528

27n

C565C557

100k

Q5072SC5383-T111

APC

C600

100k

0.1u

C60

1

1u

100p

R60

0

1k

VSS

TC75W51FUF

47p

0

3

2

4

1

6

5

VDD

IC504

7

8

C60

2

0.1u

R60

3

2.2k

R60

1R

602

120k

18k

R670

220k

R55

7

HS

C11

9D

518

1.5k

C57

2

L517

1SV282-F

OP AMP(VCO MOD/APC)

C5621u R

554

R552270k

R55

5

470p

1SV

325F

D50

7C54

8

100p

220n

220n

L515

0

R59

9

47k

47k

27p

220n

D51

7

1SV

282-

F

D51

6

220n

L5191S

V28

2-F

C56

7

0.5p

C57

8

4.7u

L523

470k

1k

10u

R56

2

C58

4 47

0p

SSM6L05FU-F

R558

470k

C58

2

R568

470p

Q510 2SJ347F

R56

3

47k

Q511

C58

5

470p

100

R56

5

C58

7

470p

220n

C54

7

100p

1SV

325F

D50

6 L514

C556

470p220n

L508 R575

0

D51

4

1SV

282-

F

L518

1SV

282-

F

220n

L516

D51

5

TX VCO

C56

8

220n 0.5p

1SV282-F

D510

RX VCO

C566

56p

Q5122SC5636

R564

150k

470p

470p

Q7053SK318

R794

RS

SI

10k

VA

GC

0.01

u10

0k

R79

7

R73

5

C73

6

100

C72

2

47k

R79

2

47p

TC75W51FUF

VSS

oUTA

IN-A

IN+A

VDD8

IN+B

oUTB

IN-B

5

6

7

R73

6

100k

C73

5

1

R73

8

2.7k

4

3

2

IC404

47p

58.05MHz

22pC73

7

VAGC

2p

C73

8

R737

220

C734

0.01u

OUT

C73

9

6p

R739

220

C740

0.01u

IN

L706

C74

3

R740

47

C74

50.

01u

9p

C74

6

470p

R743

680

R74

4

220

560n

L708

L707

270n

BPF

C75

0

C74

8

470p

R74

7

0.01

u

150k

R74

5

R74

6

Q7033SK318

1k

CN702

C75

2

470p

C75

69p

100k

L711

C74

7

C74

4

0.01

u

C74

1

C74

2

4.7u

R742

470p

4.7k

L710

18n

C753C749

10p

2p

10p

C75

1

2p

L709

18n

C75

5

C75

43p 4p

0.1u

C76

6 3 4INPUT+

R75

8T

V2

10k

INPUT-

V+

OUTPUT

LMC7101BIM5

2

1V-

5

IC702

43

C78

0

0.1u INPUT+

100k

R76

4

R76

9T

V1

10k

INPUT-

R77

4

100k

OUTPUT

LMC7101BIM5

820k

R76

3

1

V+2

5V-

IC703

R77

3

820k

R777

10k

180k

R74

9R

748

100k

22n

C77

7

470p

C77

9

C78

2

R77

1

0.5p

C78

518

0

L717

R768

0.01

u 0

220n

R770

68

C78

3

C78

4

1u

2SK1830F

C79

1R

783

R780

0

R78

1

1.8k

470p

470k

220k

D70

5

HS

C11

9

470p

C78

6

Q706

R77

9

68k

C78

8

R772

0

R77

5

100k

R77

8

100k

0.1u

C78

9

470p

R784

R654

C641

R60

5

R608

47

HS

C27

7

D60

0

R61

010p

C603

7p

C586

6.8k

R60

4

10k

C60

4

2SC5636Q600

22n

0.1u

L600

2.2k

R60

7C

605

330

R60

6

C68

9

470p

C607

7p

R609

0

4.7k

HSC277

D601

C62

2

D60

4H

ZU

2ALL

470p

R62927k

C62

6

0.1u

R63

3

2SC5383-T111Q604

R65

2

270k

C63

6

470p

150k

Q605SSM3K15TE(F)

R64

1

10k

R65

3

270k

0.39

D60

5H

ZU

5CLL

C63

16.

8u10

100 R

642

+

R635

560

R648

150k

R649

R64

7

R64

5

0.39

0.39 47

p

C64

0

270k

R65

1

270k

10p

C63

7

TH600

100k

R657

R65

6

DTC144EEQ607

C65

1

470p

100k

R66

1

47k

2SK1824-A

0

56k

R66

0

Q608

C65

3

TA75W01FUF

2

3

4

IN1-

VEE

IN1+

1

IC600

oUT1

10k

7

6

5

oUT-B

IN2+

IN2-

8VCC

R655

R658

1.8k

470p

470k

R659

Q610EMD5

R66

4

0

CN600

470p

10

0.1u

C523

C51

3

0.01

u

C518 100p/PCS_RF

PLDSCK1

SDO1

0.01uC51

2T

CX

O_M

OD

I2CSDA

I2CCK

50C/T R

33C

CV

10u2

0C

539 +

50C

AP

C

VC

O_M

OD

AS

SIS

T

150C150C

IF_DET

W_/N

RSSI

VAGC

TV1

TV2

IFC

50IF

5RC

50R

50R

50IF

/5TC

50T

50T

SBC

/SAVE

/SAVE

SBC

IFC

5RC

/5TC

33C

50T

50R

50IF

/T_R

I2CCK

I2CSDA LED_R

LED_G

LED_R

LED_G

CV

TCXO_MOD

AS

SIS

T

THP

PTT

Side_1

Side_G

Side_2

470p

50T

THP

50C

19.2M 19.2M

/DS

W

/APCSW

50R

50IF

+B +B +B +B

33C 33C

IF_D

ET

50T 50T

+B +B

1st LO 1st LO

50R 50R

RX RX

TX/RX LEDTX/RX LEDSWITCH



50T CONTROL

50RSWITCH

50IFSWITCH

SB3SWITCH

Q904SSM5H01TU

CONVERTERSWITCH

DC/DC

Q904

CONVERTERDC/DC

TEMP SENSOR

TCXO MODDC AMP for

50TSWITCH

Q905

PLL IC

BUFFER AMP

OSCILLATIONVCO

FREQUENCY CONTROL

D506,510,514,515

BUFFER AMP

SWITCHT/R

Q510,511

RIPPLE FILTER

FREQUENCY CONTROL

D507,511,516,517

MODULATIONTX

D519

RIPPLEFILTER

DC AMP for VCO TUNE

DIODEBYPASS

D505

BUFFER AMP LOCAL SWITCH

APC SWITCH

APCSWITCH

APC SWITCH

APC SWITCH

CONTROLAUTO POWER

APC SWITCH

BUFFER AMP2nd LOCAL

DC AMP for BPF

FM IC

DC AMP for BPF

BUFFER

(RSSI/VAGC)OP AMP

IF AMP

RF AGC

RF AMP

MIXER

APC PROTECT

SWITCHLOCAL

D600

APCSWITCH

RF AGC

FILTERRIPPLE

REVERSEPROTECTION

50T CONTROL

D902

2SC5636Q505

Q7042SC5383-T111

2SC5636Q601

270

R66

5

270

R66

6

C66

1

470p

C97

5

R663

12n

L504

L513

18n

150k

R55

027

0

R54

9

470p

C55

9

10p

C553

5p

C55

0

10R52

1

470p

C55

8

3p

C543

5p

C53

7

47p

C525

10p

C588

CN902

470p

C90

3

RF DRIVE AMP

RF FINAL AMP

HVC131

D607

C66

2HVC131

C66

9

4p5p

C66

6

8p

C66

8

4p

C66

41p

1.5p2p

C663

100p

L613

C667C665

L612

82k

R66

7

L614D606

18p

HV

C13

1

HV

C13

1

D70

9

4p

C80

3

C809

D71

1

2p

C81

0

L725

ANTENNA SWITCH

2SK3077F

RF AMP

Q602

RD01MUS1-T113Q603

6.8n

L605

18n

L606

4.7k

R61

2

470p

C61

0

180

R61

6

470p

C61

1

0.1u

C69

0

22

R61

8

470p

C61

2

330

R61

7 7p

C613

7p

C671

470p

C615

470p

C61

4

120

R62

6

100

R62

2

0

R627

15p

C621

0

R628

0

R620

470p

C670

15p

C62

3

470p

C61

8

47kR624

10k

R62

3

0.1u

C69

1

47R63

133

k

R63

0

470p

C62

5

10k

R63

2

0

R634

10p

C62

8

1u

C63

0

470p

C63

2

10p

C62

7

220

R63

6

470p

C62

9

L607

10k

R63

9

33k

R64

6

470p

C63

5

47

R64

4

470pC634

39p

C63

9 0

R650

47p

C65

2

7.5p

L610

150p

150p

C64

3

L602

18n

L615

15n

L603

15n

L604

RD07MVS1BT122Q606

C65

0

C64

7

18p

12p

C65

4

C64

2

C64

5

0.1u

C64

8

0.01

u

C64

6

0.01

u

1u

C64

9

L609

8.2n

L723

100p

C660

220n

L611

-t

C61

7

470p

0.1u

C61

9

7.5p

0

ANTENNA SWITCH

HSC119

D608

C672

470p

470

R669

1SV

286F

D70

2

L713

8.2n9p

C76

7

1.5p

C76

4

0

R753

0

R752

0

R750

0

R765

470p

C778C773

1p

C768

1p

C758

470p

100k

R75

7

100

R76

1

C76

5

470p

C77

1

470p

C77

5

470p

D70

3C

772

1SV

286F

C77

0

4p9p

L714

8.2n

R75

9

100k

D70

4C

776

1SV

286F

C77

4

3p9p L715

8.2n

R76

0

100k

C76

9

470p

R76

2

10k

1SV

286F

C80

1

470p

R78

8

100k

9P 8.2n

D70

8C

804

C8002p

C79

8

1.5p

L721

1SV

286F L7

224p

C80

2

9p

C79

6

470p

470p

100k

C79

4R

785

D70

6

C795

10n

8.2n

L720R799

0

0

R786

C807

5p 9p

C811

0

R791

33n

L726

100p

C85

0D

710

1SV

286F

C84

9

R79

0

100k

470p

C79

9

470p

HS

C11

9D

700

4.7k

R75

5

1uC76

1

150C150C 150C 150C

B30-2278-05

470k

470k

0.01u

C514

Q5082SK508NV(K52)

L521

22n

220n

L522

5p

C573

4pC57

1

C57

55p

C57

7

470p

0.5p

C581

R560

22

L525

220n

R55

9

180

C57

4

2p

OSCILLATION

4pC

579

180

R56

1

470p

C58

0

18n

L520 5p

2SK508NV(K52)Q509

VCO

L524

220n C576

220n

L526

C583

0.5p

L527

D51

9

1SV

278F

C57

0

0.75

p

BUFFER AMP

RF AMP

VARI-CAP TUNE

D702-704

VARI-CAP TUNE

D706,708,710

RIPPLEFILTER

FILTERRIPPLE

TX TX

L716

INPUT+ INPUT-

OUTPUT

V+

V-

TX TX

Q512

50C

D501,Q503

2.5A

XF700CF700

450kHz

4T

7T

4T4T 4T

THPTHP

Strip line

ANT

T : 3.331VR : 3.276V

R : 7.478VT : 7.338V

T : 55.4mVR : 5.1mV

R : 7.494VT : 7.353V

T : 68.5mVR : 3.28V

T : 4.81VR : 5.5mV

R : 4.977VT : 5.038V T : 70mV

R : 0.314V

T : 4.25VR : 4.974V

T : 59.4mVR : 3.285V

T : 4.99VR : 4.35mV

T : 4.987VR : 4.974V

R : 3.27VT : 62.3mV

T : 4.28VR : 4.27V

T : 4.38VR : 1.4V

R : 0.14mVT : 4.08V

T : 5.06VR : 4.978V

T : 1.84mVR : 0.15mV

R : 3.25VT : 9.7mV

R : 4.26VT : 6.94mV

T : 4.17VR : 1mV

T : 5mVR : 4.849V

T : -0.8VR : 2.66V

R : 0.731VT : 3.6mV

T : 5mVR : 4.694V

R : 0.697VT : 3.6mV

T : 85mVR : 2.03V

R : 1.81VT : -100mV

R : 4.94VT : 4mV

T : 3.8mVR : 4.94V

T : 1.63VR : 0.308V R : 69.8mV

T : 1.633V

T : 140mVR : 0.65V

T : 128mVR : 63mV

T : 11.2mVR : 3.274V

R : 61mVT : 110mV

R : 3.294VT : 40mV

T : 3.71VR : 13mV

R : 7.11VT : 1.52V

T : 3.92VR : 18mV

R : 1.59VT : 1.52V

T : 1.615VR : 0.5mV

R : -35mVT : 0.808V

R : 3.14VT : 46mV

R : 2.96VT : 46mV

T : 43mVR : 1.29V

T : 47mVR : 4.53V

R : 4.54VT : 46mV

T : 47mVR : 4.89V

T : 45mVR : 1.99V

R : 6.71VT : 13.6V

R : 6.71VT : 13.6V

T : 43mVR : 137mV

R : 3.8mVT : 42mV

R : 100mVT : 6.38mV

R : 6.57VT : 79mV

R : 0.79VT : 0.81V

T : 4.98VR : 4.94V

R : 1.1VT : 1.27V

T : 14.3VR : 14.26V

T : 13.72VR : 13.65V

R : 14.28VT : 14.32V

R : 7.49VT : 7.26V

T : 5VR : 4.97V

T : 5VR : 4.97V R : 3.32V

T : 3.35V

R : 14.28VT : 14.32V

R : 7.23VT : 7.06V

R : 1.81VT : 1.89V

R : 4.75VT : 4.8V

T : 1.36VR : 1.48V

R : 4VT : 4.03V

T : 0.43VR : 0.96V

R : 4.15VT : 18mV

T : 4.2VR : 2.5mV

R : 2.5mVT : 1.01V

T : 18mVR : 1.11V

T : 2.37VR : 2.5mV T : 0.64V

R : 5mV

L : 4.64VH : 4.65V

L : 0.42VH : 0.62V

T : 2.81VR : 14mV

L : 1.96VH : 2.8V

T : 2.34VR : 12mV

H : 2.33VL : 1.626V

T : 42.7mVR : 0.87V

R : 13.73VT : 13.82VT : 14.43V

R : 14.34V

T : 14.41VR : 14.33V

T : 4.974V

1 1

1

2 2

2

3 3

3

4 4

4

4

4

3

4 4 4

3 3

(X41-3710-10)SWITCH UNIT

CO

NT

RO

L U

NIT

(X53

-426

0-X

X)-

CN

404

TX-RX UNIT (X57-7370-10) (A/2)

INTERCONNECTION DIAGRAMINTERCONNECTION DIAGRAM

12345678910

11

12

13

14

I2CSDA

/EMG

CN900

CV

LED_R

VAGC

IFC

LED_G

RSSI

TCXO_MOD

TV2

SBC

5RC

/T_R

TV1

GND

/SAVE

ASSIST

1

+B

GND

NC

+B

50

NC

GND

+B

I2CCK

/5TC

Side_1

NC

W/N

Side_G

+B

PTT

GND

NC

/APCSW

SDO1

PLD

THP

VCO_MOD

Side_2

/PCS_RF

RFAGC

/DSW

APC

GND

GND

SCK1

S_DET

NC

IF_DET

I2CSDA

50

SDO1

SCK1

AGND

5RC

Side_2

+B

IFC

Side_1

1

I2CCK

ASSIST

IF_DET

APC

Side_G

PTT

VCO_MOD

VAGC

TV1

CV

+B

TCXO_MOD

+B

/DSW

/5TC

TV2

LED_R

CN404

/APCSW

/T_R

PGND

THP

NC

+B

/SAVE

GND

RFAGC

RSSI

GND

PGND

SBC

/EMG

NC

PLD

S_DET

W/N

NC

/PCS_RF

AGND

LED_G

NC

NC

S-

+

BATT

CN403

101

VSS

V3

V2

V5

V1

VDD

CN1

V4

20

LCD ASSY

X57-737 A/2

X53-426

TX-RX PCB

CONTROL PCB

POWER SW/ CHANNELAF VOL SELECTOR

Side_2

Side_G

PTT

GND

Side_1

CN901

ANT

RXEI

OPT9

NC

OPT11

AGND

AGND

TXI

OPT7

26P_TD

DTI

OPT5

AO

OPT1

POW

OPT8

26P_RD

RXEO

OPT10

AI

OPT2

TXO

CN710 OPT3

OPT6

OPT4

AGND

5V

/CS

/RES

AO

/WR

D0

D1

D2

D3

D4

D5

D6

VDD

D7

1

5V

1

20

CN701

RXD

TXD

UNIVERSAL CONNECTOR

NC

PF

SP-

PTT

EMC

SSW

1

MSW

CN405

SP+

ME

OPT

E

6KEY/SP/MIC

ME

EMC

SP+

SP+

SP-

SP-

6_/KEYI1

6_/KEYO2

BL_SB

6_/KEYO0

6_/KEYO1

BL_SB

6_/KEYI0

AGNDCN23

PTT

Side_1

Side_2

OPT10

OPT7

TXo

AGND

SB2

NC

SToN

oPT3

RXEO

DTI

C3

TCNT

OPT2

OPT9

DI

AI

oPT1

AGND

OPT3

RXEI

RXEo

DGND

MDWN

oPT5

INH

OPT11

X57-737 B/2

OPT1

26P_RD

OPT6

AO

5V

26P_TD

TXI

TXOCN737

oPT2

TXI

RXEI

AGND

OPT4

oPT4

OPTION PCB

AGND

POW

OPT8

OPT5

5A

DGND

CORD ASSY

X42-334

X41-372

SWITCH UNIT

X41-371

SWITCH UNIT

SB1

+B

EN2

EN1

EN4

AGND

EN3

VOL

VOL_GND

33A

1 26

14

NX-300

8786

NX-300

BLOCK DIAGRAMBLOCK DIAGRAM

DSP IC102FlashROM

IC101

SRAM

IC103

IC108ASIC

D0~15,A0~20,/RD,/WR,/CS0,/CS2,/CS3,/CS4/HDS2,/HRDY

RTCIC403RV5C386A

I2CCK,I2CSDA

I/O Expander

IC701

BUS SW

CN

1 to

LC

D M

odul

e

IC401 TC7MZ245FKIC402 TC7WZ245FK-F

33M

IC403LMC7101BIM5

N100C

LCDCNT

X101 32.768kHz

SM5023CNDH-GIC107 VC

TCXO

X10218.432MHz

33M

BS

HIF

T33A 33M

RESET

IC105XC6109C29ANN

33MIC410

MCP6021-E/OT

IF_DET

LPF LPF

BPF

IC711TC75W51FK(F)(2/2)

AMP

Q7042SC4617(S)

Rect

D705RB706F-40

AMP

IC711TC75W51FK(F)(1/2)

ASQDET

APC

DAC

OPT10MUTE

DO

IC703M62364FP-F(8/8)

IC702TC75W51FK(F)(1/2)

IC702TC75W51FK(F)(2/2)

Q701 2SA1832(GR)F

DAC

IC703M62364FP-F(7/8)

LPF

IC704TC75S51FE(F)

IC707TC7W53FK(F)

SUM

IC713TC75W51FK(F)(2/2)

AMT/SCSW

DAC

IC703M62364FP-F(6/8)

DAC

IC703M62364FP-F(5/8)

DAC

IC703M62364FP-F

33A

SDO0,SCK0/EVCS

AMP

IC408TC75S51FE(F)

IC409TC75W66FK-F

INAMT

EXAMT

IC413TPA6201A1DRBR

IC412TPA6201A1DRBR

AVR

+B

INAMTEXAMT

Q406 2SB1132(Q,R)Q407 UMG3N

Q405SSM6N16FE-F

BE

EP

MUTE

STSW

IC709TC7W53FK(F)

OPT9 VGSAI from

SW

TONESW

Q702SSM3K15TE

TONE

IC714TC7W53FK(F)

OPT6AO to VGS

AMP

IC716TC75W51FK(F)(1/2)

AGC

D703,704 RB706F-40Q705 2SC4738(GR)FQ706 2SA1832(GR)F

AI

from

VG

S

MUTE

MM

Q7072SJ243-A

MUTE

MSW

MSW

Q4 SSM3K15TE(F)Q5 2SJ347F

SSWPTTPFKEYOPT5VTXDRXD

VOXAMP

IC716TC75W51FK(F)(2/2)

Rect D706RB706F-40

AMP IC715TC75S51FE(F)

VOX

MUTE

IC712TC7S66FUF

/SCSW

SUM

DT

I fr

om A

NI

IC710TC75W51FK(F)(1/2)

LPF

IC706TC75S51FE(F)

MIC

RXAF

LPF LPFMOD

IC705TC75W51FK(F)(2/2)

IC705TC75W51FK(F)(1/2)

SUM

IC710TC75W51FK(F)(2/2)

DI

DAC

IC703M62364FP-F(1/8)

DAC

IC703M62364FP-F(2/8)

TCXO_MOD

VCO_MOD

TV1TV2

MSW

/UDET/PTT

PFKEY

50U

RXD3

IC41

7T

C7W

H12

6FK

(2/2

)

RX

D0

RT

S0

Q41

1S

SM

6N16

FE

-F

NC

BE

R_C

LKB

ER

_DAT

A

BE

R_E

N

IC41

8T

C7W

T12

5FU

F

IC41

5T

C7S

ET

08F

U-F

TX

D0

SC

TX

D

KEY Matrix(12key)

KE

YO

0,1

,2,3

/KE

YI

0,1,

2,3,

4

EMC

6_KEYO26_KEYO16_KEYO06_KEYI06_KEYI1

BL_SB

CN23

CN405

KEYMatrix(6key)

/OINT

CN710 26pin Option Board

OP

T1,

2,3,

4,5,

6,7,

8,11

TX

OT

XI

RX

EO

RX

EI

DT

IO

PT

9

PO

W5A A

IA

O

OP

T10

26P

_TD

26P

_RD

/DRST,DCLK,/SYMTIM,/RSSITIM,/DINT,

/SWUP,FSDET,/HINT

/LCDRST

MCD1AF,/MCSCKAF,/MCCSAF,MCD0AF,MCD1CN,/MCCXCN,/MCD0CN,/

MCCSRCN,MCSCKCN

Selectorknob

Volume

CN403

ENC1ENC2ENC3ENC4

33AVOL

SB1+B

AVR

SB2

Q101 2SA1832(G,R)FQ102 2SC4617(S)Q103 SSM3K15TE(F)

5A

BLC

D3,D4D7,D8

D1,2,5,6D9,10

LCD Back Light

12key Back Light

6keyBack Light

BL_SB

CN

701

(for

pro

duct

ion)

TO DSP

/EMG , /PTT , Side_1 , Side_2,Side_G , IFC ,5RC , 5TC , /DSW , /APCSW,SBC , /T_R ,ASSIST , SDO1 , SCK1 , PLDC

N40

450

pin

Boa

rd to

Boa

rd

ASQDETVOXVOL

BATTPFKEY

RSSI , THP , VAGC , CV , S-DET

TXD0RXD0RTS0CTS0DSR/PTT

/UDETRXD3ENC1ENC2ENC3ENC4/BINT/PSW

BLCMM

SCSW/AMTSTSW

EXAMTINAMTBEEP

TONESW/MNDNU

5UC

+B

DCDCConverter

L401 , D406 , D405IC407 LT1616ES6-PBF

RESET

IC414XC61CC5602NR

/BINT

+B

AVR

IC416S-812C31BPI-G

DCSW


Q401 SSM6N16FE-F

DCSW


CN

401

Li B

atte

ry

31BU

SCTAM1

SBC

D4121SS301F

DCSW

SB1Q408

EMD12

SBC

D4081SS301F

Q402 SSM6N16FE-F

/PSW

DCSW


BATT

SB2

AVR

IC708 XC6204B502PR

5A

AVR

IC404XC6204B332M

AVR

IC405XC6205B152PRN

AVR

IC406XC6204B332M

33M

15M

33A

15M

(3/8,4/8)

ASQAPC

SC

RX

D

AVR

IC411NJM2880U105ZB

5UC

IC403 LM2682MMX50U

AVR

SB2

BLC

5A

Q1 2SA1362(GR)-FQ2 2SC4617(S)Q3 SSM3K15TE(F)

/RINT32K

DC SW

DC SW

LED-G

LED-R

SBC

Q415EMD12

Q414EMD12

DCDC-10VN100C

SBC

NX-300

8988

NX-300

X53-4260-XX (Control unit)

BLOCK DIAGRAMBLOCK DIAGRAM

LPFANTSW

DC SW

Q606RD07MVS1B

Q603RD01MUS1

Q6022SK3077F

APC

+B

FinalAMP

Pre-FinalAMP

DriveAMP

Protect

Q6082SK1824-A

DC SW

/APCSW

ASQAPC

Q607DTC144EE

/APCSW

Q610EMD5

DC SW

/DSW

Q6042SC5383-T111

T/RSW

5T 5R

Notch

D606,607D709,711HVC131*4

D600,601HSC277*2

BPF

TUNE

L726

D71

01S

V28

6F

TUNE

TV1IC702LMC7101BIM5

TV2

RFAMP

L721,722

Q2043SK318

D70

6,70

81S

V28

6F*2

IC703LMC7101BIM5

BPF

L713,714,715

TUNE

D70

2,70

3,70

41S

V28

6F*3

1stMIXER

Q7033SK318

MCF

XF70058.05MHz

IFAMP

5T

50R

IF AMPIC701

TK10931VTL-G

BPF

CF700 450kHz

LPF

BPF

CF701450kHz

IFAMP

IC700MCP6021-E10T

IC40

4T

C75

W51

FU

F(1

/2)

IC40

4T

C75

W51

FU

F(2

/2)

RS

SI

VA

GC

BUFFAMP

BUFFAMP

BUFFAMP

Q6002SC5636

Q5122SC5636

Q5052SC5636

VCO

Q508,509 2SK508NV(K52)D506,507 1SV325FD519 1SV278-FD506,507,508,509D514,515,516,517 1SV282-F*4

LPF

PLL

LoopFilter

VCO MOD

ASSIST

CV

RippleFilter

Q5072SC5383-T111

T/RSW

Q510 SSM6L05FUQ511 2SJ347F

VCTCXO

x3

Q700 2SC5108(Y)F

VC

X500 19.2MHz

50IF

TCXO_MOD

PLD

CN900

AVR

+B

50C

AVR

DC SW

33C

DC SW

DC SW

50R

50IF

50T

5RC

IFC

/5TC

/SAVE

DC SW SB3

SBC

Q901SSM6L05FU

DCDCConverter

150C

Q904 SSM5H01TUIC901 XC9101D09AKR

IC902TK11250CUCB

IC903 TK71733S

Q902 SSM6L05FU

Q903 SSM6L05FU

Q905 2SA1955A-F

IC900 TC75S51FE(F)

DCSW

SB3

LED_R

LED_G

D90

0Q

900

UM

G9N

/EMG

PTT

Side1

Side2

Side_1

Side_2

Side_G

PTT

S1

Temp.Sensor

IC500LM73CIMKX-0

33C IC502

IC503LMC7101BIM5


Q5042SK879(Y)F


5T

50C

50C

50C

RippleFilter

150CQ5032SC5383-T111

IF_DET

TX/RX: 450~520MHz

+

-

BATT7.5V

S

+B

S_DET

I2CCKI2CSDA

IC501LMC7101BIM5

Q7012SC4215-F(Y)

RippleFilter

2SC5383-T111Q704

150C

IC600TA75W01FUF

CN901

1st L

ocal

: 39

1.95

~46

1.95

MH

z

TX

: 45

0.00

~52

0.00

MH

zR

X :

391.

95~

461.

95M

Hz

Pre-DriveAMP

Q6012SC5636

5T

Q605SSM3K15TE

SD

O1

SC

K1

/PC

S R

F

/T_R

50R

/EMG , LED_R , LED_G , APC ,/DSW , /APCSW , CV , ASSIST ,VCO_MOD , TV1 , TV2 , /T_R ,PTT , Side_1 , Side_2 , Side_G

RSSI , THP , VAGC , CV , S_DET , IF_DET

NX-300

9190

NX-300

X57-7370-10 (TX-RX unit)

uhf digital transceiver nx-300 - repeater...

Documents