samsung sgh-z300 service manual

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SG H -Z300 UMTS TELEPH ONE CONTENTS 1. Sp ecification 2. C ircuit D escrip tion 3. Exp lod ed Views and Parts List 4. Electrical Parts List 5. Block Diag ram s 6. PCB D iag ram s 7. Flow Ch art of Troubleshooting UM TS TELEPH ONE

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Page 1: Samsung SGH-Z300 service manual

SGH-Z300

UMTS TELEPHONE CONTENTS

1. Specification

2. Circuit Description

3. Exploded Views and Parts List

4. Electrical Parts List

5. Block Diagrams

6. PCB Diagrams

7. Flow Chart of Troubleshooting

UMTS TELEPHONE

Page 2: Samsung SGH-Z300 service manual

Samsung Electronics Co.,Ltd. June. 2005Printed in Korea.

Code No.: GH68-07501A

BASIC.

This Service Manual is a property of Samsung Electronics Co.,Ltd.Any unauthorized use of Manual can be punished under applicableInternational and/or domestic law.

Page 3: Samsung SGH-Z300 service manual

SAMSUNG Proprietary-Contents may change without notice

1. Specification

This Document can not be used without Samsung's authorization

1-1

1-1. GSM General Specification

EGSM 900 DCS1800 PCS1900 W-CDMA

Freq.Band[MHz]

Upl ink/Downlink

880~915925~960

1710~17851805~1880

1850~19101930~1990

1920~19802110~2170

ARFCN range0~124 &

975~1023512~885 512~810

UL:9612~9888DL:10562~10838

Tx/Rx spacing 45MHz 95MHz 80MHz 190MHz

Mod. Bi t rate/Bit Per iod

270.833kbps3.692us

270.833kbps3.692us

270.833kbps3.692us

3.84Mcps

Time SlotPer iod/Frame

Per iod

576.9us4.615ms

576.9us4.615ms

576.9us4.615ms

Frame length : 10msSlot length : 0.667ms

Modulat ion 0.3GMSK 0.3GMSK 0.3GMSKQPSK

HQPSK

MS Power 33dBm~5dBm 30dBm~0dBm 30dBm~0dBm 24dBm ~ - 50dBm

Power Class4

(max +33dBm)1

(max +30dBm)1

(max +30dBm)3

(max +24dBm)

Sensi t iv i ty -102dBm -100dBm -100dBm -106.7dBm

TDMA Mux 8 8 8

Cell Radius 35Km 2Km 2Km 2Km

Page 4: Samsung SGH-Z300 service manual

SAMSUNG Proprietary-Contents may change without noticeThis Document can not be used without Samsung's authorization

Specification

1-2

1-2. GSM TX power class

TX Power

control levelPCS1900

0 30±3 dBm

1 28±3 dBm

2 26±3 dBm

3 24±3 dBm

4 22±3 dBm

5 20±3 dBm

6 18±3 dBm

7 16±3 dBm

8 14±3 dBm

9 12±4 dBm

10 10±4 dBm

11 8±4dBm

12 6±4 dBm

13 4±4 dBm

14 2±5 dBm

15 0±5 dBm

TX Power

control levelGSM900

5 33±2 dBm

6 31±2 dBm

7 29±2 dBm

8 27±2 dBm

9 25±2 dBm

10 23±2 dBm

11 21±2 dBm

12 19±2 dBm

13 17±2 dBm

14 15±2 dBm

15 13±2 dBm

16 11±3 dBm

17 9±3dBm

18 7±3 dBm

19 5±3 dBm

TX Power

control levelDCS1800

0 30±3 dBm

1 28±3 dBm

2 26±3 dBm

3 24±3 dBm

4 22±3 dBm

5 20±3 dBm

6 18±3 dBm

7 16±3 dBm

8 14±3 dBm

9 12±4 dBm

10 10±4 dBm

11 8±4dBm

12 6±4 dBm

13 4±4 dBm

14 2±5 dBm

15 0±5 dBm

Page 5: Samsung SGH-Z300 service manual

SAMSUNG Proprietary-Contents may change without notice

2. Circuit Description

This Document can not be used without Samsung's authorization

2-1

2-1. SGH-Z300 RF Circuit Description

- Antenna Switch Module (U600)

The antenna switch module allows multiple operating bands and modes to share the same antenna. A common

antenna connects to one of five paths: 1) UMTS-2100 Rx/Tx, 2) EGSM-900 Rx, 3) EGSM-900 Tx, 4) DCS-1800

Rx, and 5) DCS-1800 Tx. 6) PCS-1900 Tx, 7) PCS-1900 Rx, UMTS operation requires simultaneous reception

and transmission.

- Filter

To convert Electromagnetic Field Wave to Acoustic Wave and then pass the specific frequency band.

- GSM Rx FILTER (F601) → For filtering the frequency band between 925 ~ 960 MHz.

- DCS Rx FILTER (F602) → For filtering the frequency band 1805 and 1880 MHz.

- DCS Rx FILTER (F603) → For filtering the frequency band 1930 and 1990 MHz.

- WCDMA Rx FILTER (F701) → For filtering the frequency band 2110 and 2170 MHz.

- WCDMA Tx FILTER (F703) → For filtering the frequency band 1920 and 1980 MHz.

- VCTCXO (OSC701)

To generate the 19.2MHz reference clock to drive the logic and RF.

- Duplexer (F202)

A duplexer splits a single operating band into receive and transmit paths.

- UMTS PAM (U701)

This is a key component in the transmitter chain and must complement the RTR6250 IC precisely; jointly they

dominate the UMTS transmitter performance characteristics. Parameters such as gain, output power level, ACLR,

harmonics, Rx-band noise, and power supply current are critical.

- GSM/DCS/PCS PAM (U603)

The PAM is a key component in any transmitter chain and must complement the rest of the transmitter precisely.

For GSM,DCS,PCS operation, the closed-loop transmit power control functions add even more requirements

relative to the UMTS PA. In addition to gain control and switching requirements, the usual RF parameters such

as gain, output power level, several output spectrum requirements, and power supply current are critical.

- GSM/DCS/PCS l Tx VCO (U601)

The Tx VCO outputs for EGSM, DCS, PCS drive a resistive network that splits the active signal into two signals:

1) the input to the active PAM ? this is the low loss path, and 2) the OPLL feedback signal.

- RF VCO (OSC702)

The single-band UHF VCO is a key component within its phase-locked loop; VCO performance directly impacts

PLL and transceiver performance. UMTS Rx LO signal is generated from this VCO's output.

Page 6: Samsung SGH-Z300 service manual

SAMSUNG Proprietary-Contents may change without noticeThis Document can not be used without Samsung's authorization

Circuit Description

2-2

- RFL6200 (U702)

The RFL6200 includes an LNA circuit optimized for UMTS-2100 operation. The LNA is separated from all other

receive functions contained within the RFR6200 receiver IC to improve mixer LO to RF isolation ? a critical

parameter in the Zero-IF architecture.

- RFR6200 (U703)

The RFR6200 provides the Zero-IF receiver signal path, from RF to analog baseband, for UMTS-2100

applications. The RFR6200 accepts its UMTS input signal from the handset RF front-end design. The UMTS input

is configured differentially to optimize second-order inter-modulation and common mode rejection performance, and

implements MSM-controlled gain adjustments to extend the receiver dynamic range.

- RTR6250 (U602)

The RTR6250 supports multi-band, multi-mode phones with two receiver signal paths and three transmitter signal

paths:

Receiver paths

- EGSM-900

- DCS-1800

- PCS-1900

Transmitter paths

- EGSM-900 (using OPLL technique)

- DCS-1800 (using OPLL technique)

- PCS-1900

- UMTS-2100

Numerous secondary functions are integrated on-chip as well:

Page 7: Samsung SGH-Z300 service manual

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Circuit Description

This Document can not be used without Samsung's authorization

2-3

2-2. Baseband Circuit description of SGH-Z300

2-2-1. PM6650

- Power Management

Ten low-dropout regulators designed specifically for GSM applications power the terminal and help ensure optimal

system performance and long battery life. It provides LDOs support for 1.375V, 1.8V, 2.6V, 2.85V,

3.3V.

IC-level interfaces include the three-line serial bus interface(SBI) used by the MSM6250 device to control

and status the PM6650 IC.

- Keypad Backlight

The Keypad backlight driver output is at pin 23 (KYPD_BACKLIGHT_DRV) and is designed to drive parallel

connected LEDs directly. Its output current level is SBI-programmable and meets the performance specified below.

Input parameters are not specified since they are internal.

- TCXO Controller and Buffers

The PM6650 IC includes circuits for controlling the TCXO warm-up and buffering its signal for distribution

throughout the handset. Performance specifications are presented below.

2-2-2. Connector

- LCD Connector

LCD is consisted of main LCD(color 262K TFT LCD) and small LCD(OLED color 65K LCD). Chip select signals

in the U300, MAIN_LCD_CS can enable main LCD and SUB_LCD_CS can enable small LCD. CAM_PWR_ON

signal enables white LED of main LCD. MAIN_LCD_RESET signal initiates the reset

process of the main LCD. SUB_LCD_RESET signal initiates the Reset process of the small LCD.

16-bit data lines(D2(0)~D(15)) transfers data and commands to LCD. Data and commands use "RS" signal.

If this signal is high, Inputs to LCD are commands. If it is low, Inputs to LCD are data. The signal which informs

the input or output state to LCD, is required. But this system is not necessary this signal.

Power signals for LCD are "VBATT_LCD". "SPKP_RCVP" and "SPKP_RCVN" from HEA401 are used for audio

speaker. And "MOTOR_EN" from U100 enables the motor.

- Key

This is consisted of key interface pins among U100, KEYSENSE_N(0:4). These signals compose the matrix.

Result of matrix informs the key status to key interface in the U100. Power on/off key is seperated from the

matrix. The key LED use the "VBATT" supply voltage. "KEY_LED" signal enables LEDs with current control.

"HALL_SW" informs the status of folder (open or closed) to the. This uses the hall effect IC, A3212ELH.

Page 8: Samsung SGH-Z300 service manual

SAMSUNG Proprietary-Contents may change without noticeThis Document can not be used without Samsung's authorization

Circuit Description

2-4

- EMI ESD Filter

This system uses the EMI ESD filter, GMF05LC to protect noise from IF CONNECTOR part.

- IF connetor

It is 24-pin connector. They are designed to use VBATT, CF, UART1_TX, UART1_RX, UART1_RFR,

UART1_CTS, JIG_ON, RTCK, TCK, TDI, TDO, TMS and GND. They connected to power supply IC,

microprocessor and signal processor IC.

2-2-3. AudioEAR1OP and EAR1ON from U100 are connected to the main speaker. AUXOP and AUXON are connected to

the Digital AMP. MIC1P and MIC1N are connected to the main MIC. And MIC2P and MIC2N are connected to

the Earphone.

YMU769 has a built-in amplifier, and thus, is an ideal device for outputting sounds that are used by mobile

phones in addition to game sounds and ringing melodies that are replayed by a synthesizer.

The synthesizer section adopts "stereophonic hybrid synthesizer system" that are given advantages of both FM

synthesizers and Wave Table synthesizers to allow simultaneous generation of up to 32 FM voices and 32 Wave

Table voices. Furthermore, YMU769 has a built-in hardware sequencer that helps to realize complex play without

heavily loading the host CPU. And this device also has a built-in circuit for controlling vibrators and LEDs

synchronizing with play of music. The consumed electric current can be stopped to the minimum by power down

mode when not operating.

The hardware sequence built in this device allows playing of the complex music without giving excessive load to

the CPU of the portable telephones. Moreover, the registers of the FM synthesizer can be operated directly for

real time sound generation, allowing, for example, utilization of various sound effects when using the game

software installed in the portable telephone.

2-2-4. MemoryThe signals in the MSM6250 enable two memories. They use only one volt supply voltage, VDD_LP from

the PM6650. This system uses SEC's memory, KBE00F005M-F411. It is consisted of 1G bits flash NAND

memory and 512M bits SDRAM memory. It has 16 bit data line, D1[0~15] which is connected to MSM6250.

It has 22 bit address lines, A[1~22]. ROM_CS and RAM_CS signals is chip select.

2-2-5. CameraThe camera module consists of Mega pixel and VGA pixel. The Mega camera is a highly integrated CMOS color

image sensor implemented by Hynix COMS sensor process realizing high sensitivity and wide dynamic range.

Total pixel array size is 1184H x 914V, and 1170H x 880V pixels are active. The VGA camera is a

highly integrated CMOS color image sensor implemented by Hynix COMS sensor process realizing high sensitivity

and wide dynamic range. Total pixel array size is 656H x 492V, and 656H x 488V pixels are active.

2-2-6. IrdaThis system uses IRDA module, HSDL_3208, Agilent's. This has signals, "IRA_DOWN"(enagle signal),

"RXD0"(Input data) and "TXD0"(output data). These signals are connected to U100(MSN6250). It uses two power

signals. "VDD_LP" is used for circuit and "VBATT" is used for LED.

Page 9: Samsung SGH-Z300 service manual

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3. Exploded View and Parts List

This Document can not be used without Samsung's authorization

3-1

3-1. Exploded View

QAN02

QBA01

QCA01

QCA03

QCR09

QCR04

QCR06

QFL01

QFR01

QFU01

QIF01

QKP01

QMO01

QMP01

QRE01

QRF01

QSC01

QSC14

QSH01QME01

QAU01

QLC01

QMW01

QWD03

QVO01

QCK01

QRF03

QLC02

Page 10: Samsung SGH-Z300 service manual

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Exploded view and Part List

3-2

3-2. Parts List

Location NO. Description SEC CODE

QAN02 INTENNA-SGHZ300;H90-OY354,SGH-Z300,8 GH42-00563A

QAU01 AUDIO-RECEIVER;32ohm,110dB,8X16mm 3009-001111

QBA01 BATTERY-BATTERY-960MAH,DA SI;BST4309 GH43-01789A

QCA01 UNIT-CAMERA;SGH-Z300,MOMFA140U1A,-,E GH59-02027A

QCA03 UNIT-CAMERA;SGH-Z300,MOMFA240U1A,-,E GH59-02028A

QCR04 SCREW-MACHINE;PH,+,M1.4,L4,NYLOK,SWR 6001-001479

QCR06 SCREW-MACHINE;PH(PI2.5),+,M1.4,L3.5, 6001-001155

QCR09 SCREW-MACHINE;PH,+,M1.4,L4.5,ZPC(BLK 6001-001670

QFL01 MEC-FOLDER LOWER;SGH-Z300,EU,-,-,-,- GH75-06764A

QFR01 MEC-FRONT COVER;SGH-Z300,EU,-,-,-,-, GH75-06762A

QIF01 PMO-IF COVER;SGH-Z300,PC+URETHANE,BK GH72-19863A

QRF03 PMO-COVER EAR;SGH-Z300,PC+URETHANE,B GH72-22285A

QVO01 PMO-KEY VOL;SGH-Z300,ABS+URETHANE,SI GH72-19860A

QCK01 PMO-KEY CAM;SGH-Z300,ABS+URETHANE,SI GH72-19861A

QFU01 MEC-FOLDER UPPER(TIM);SGH-Z300,TIM,- GH75-07316A

QKP01 MEC-KEYPAD MAIN(TIM);SGH-Z300,TIM,-, GH75-07320A

QLC01 LCD-SGHZ300MODULE;UF-17E096-A,SGH-Z3 GH07-00678A

QLC02 LCD-SGHZ300 SUB MODULE;PM08CC021A,SG GH07-00742A

QME01 UNIT-KEY PAD;SGH-Z300,EDTGZ300,-,EU, GH59-02044A

QMO01 MOTOR DC-SGHZ130;DMJBRK20BB,SGH-Z130 GH31-00153K

QMP01 PBA MAIN-SGHZ300;SGH-Z300,XET,EU,PBA GH92-02176A

QMW01 MEC-MAIN WIN DUMMY;SGH-Z300,EU,-,-,- GH75-06768A

QRE01 MEC-REAR COVER;SGH-Z300,EU,-,-,-,-,D GH75-06765A

QRF01 MPR-RF CAP;SGH-Z300,0.2T PC SHEET,6. GH74-14085A

QSC01 MPR-SCREW CAP;SGH-Z300,0.3T PC SHEET GH74-14084A

QSC14   MPR-TAPE FRONT HOLE;SGH-Z300,PET T0. GH74-15598A

QSH01   NDC-SHIELD CAN;-,SGH-Z300,MAGNESIUM, GH71-04748A

QWD03   MEC-DUAL WIN DUMMY;SGH-Z300,EU,-,-,- GH75-06767A

Page 11: Samsung SGH-Z300 service manual

SAMSUNG Proprietary-Contents may change without notice

Exploded view and Part List

This Document can not be used without Samsung's authorization

3-3

SEC CODE Description

6902-000634 BAG PE;LDPE,T0.05,W80,L180,TRP,-,-

GH39-00395A CBF INTERFACE-PC DATA CABLE;SGH-Z500

GH44-00701A CHARGER-TCH;TCH137ESE,SGH-X910,AC/DC

GH46-00145A S/W CD-SAMSUNG PC STUDIO;SGH-Z500,SG

GH59-01713A UNIT-EARPHONE;SGH-Z107,EM-SS650E-ST,

GH68-02026A LABEL(P)-WATER SOAK;SCH-X110,NORGE,1

GH68-06982B LABEL(R)-MAIN(TIM);SGH-Z300,TIM,POLY

GH68-07013A MANUAL-WEEE CARD;SGH-E720,SEC,ENGLIS

GH68-07301A MANUAL-USER;SGH-Z300,TIM,ITALIAN,ITA

GH69-02925C BOX(P)-UNIT(TIM);SGH-Z300,SC350+S120

GH69-03002A CUSHION-CASE(OPEN);SGH-Z300,PULP,T0.

GH74-07571A MPR-UPPER LOGO GOHO VINY;SGH-E310,VI

GH74-13606A MPR-BOHO VINYL IF;SGH-E720,#950,85X1

GH74-15543A MPR-SPONGE MIC;SGH-Z300,SRS PORON,81

GH75-03673H MEC-HANGER;SGH-Z500,TMN,STRAP,-,BLK,

Page 12: Samsung SGH-Z300 service manual

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Exploded view and Part List

3-4

3-3. Test Jig (GH80-03305A)

3-3-1. RF Test Cable(GH39-00105A)

3-3-2. Test Cable(GH39-00210A)

3-3-3. Serial Cable

3-3-4. Power Supply Cable 3-3-5. DATA CABLE(GH39-00208A)

3-3-6. TC(GH44-00482A)

Page 13: Samsung SGH-Z300 service manual

SAMSUNG Proprietary-Contents may change without notice

4. Electrical Part List

4-1

This Document can not be used without Samsung's authorization

Design LOC Description SEC CODE

ANT601 ANTENNA NEW-ITEM005

BAT201 BATTERY 4302-001180

C101,C102,C103,C104 C-CERAMIC,CHIP 2203-005482

C105,C106,C107,C108 C-CERAMIC,CHIP 2203-005482

C111,C112,C113,C114 C-CERAMIC,CHIP 2203-005482

C115,C117,C119,C120 C-CERAMIC,CHIP 2203-005482

C118,C204,C224,C233 C-CERAMIC,CHIP 2203-006093

C121,C122,C123,C124 C-CERAMIC,CHIP 2203-005482

C125,C126,C127,C128 C-CERAMIC,CHIP 2203-005482

C132,C133,C134,C135 C-CERAMIC,CHIP 2203-005482

C136,C137,C138,C149 C-CERAMIC,CHIP 2203-005482

C141 C-CERAMIC,CHIP 2203-000489

C142,C143 C-CERAMIC,CHIP 2203-000628

C144,C245,C246,C406 C-CERAMIC,CHIP 2203-000812

C145,C148,C250,C254 C-CERAMIC,CHIP 2203-000254

C146,C208,C247,C301 C-CERAMIC,CHIP 2203-005061

C147 C-CERAMIC,CHIP 2203-005480

C151,C153,C154,C156 C-CERAMIC,CHIP 2203-005482

C152,C155 C-CERAMIC,CHIP 2203-006091

C201,C203 C-CERAMIC,CHIP 2203-005138

C202,C214,C216,C217 C-CERAMIC,CHIP 2203-006201

C205,C237,C238,C239 C-CERAMIC,CHIP 2203-005482

C206,C209,C211,C213 C-CERAMIC,CHIP 2203-000278

C207,C226,C228,C316 C-CERAMIC,CHIP 2203-000438

C210 C-CERAMIC,CHIP 2203-005065

C212,C219,C221,C225 C-CERAMIC,CHIP 2203-006208

C215,C220,C502,C504 C-CERAMIC,CHIP 2203-000278

C218,C222,C223,C601 C-CERAMIC,CHIP 2203-006201

C227,C234,C235,C236 C-CERAMIC,CHIP 2203-006208

C229,C230 C-CERAMIC,CHIP 2203-000425

C240,C241,C242,C243 C-CERAMIC,CHIP 2203-005482

C249,C253 C-TA,CHIP 2404-001339

C251,C252,C401,C402 C-CERAMIC,CHIP 2203-006208

C255,C256,C310 C-CERAMIC,CHIP 2203-006053

C302,C303,C307,C308 C-CERAMIC,CHIP 2203-005061

C304,C305,C613,C614 C-CERAMIC,CHIP 2203-000233

C306 C-TA,CHIP 2404-001377

Page 14: Samsung SGH-Z300 service manual

SAMSUNG Proprietary-Contents may change without notice

Electrical Part List

4-2

This Document can not be used without Samsung's authorization

Design LOC Description SEC CODE

C309,C508,C510,C535 C-CERAMIC,CHIP 2203-005061

C311,C313,C315,C405 C-CERAMIC,CHIP 2203-005482

C318,C768 C-CERAMIC,CHIP 2203-000654

C319 C-TA,CHIP 2404-001386

C320 C-CERAMIC,CHIP 2203-006257

C321,C506,C533,C607 C-CERAMIC,CHIP 2203-006093

C327,C413,C769 C-TA,CHIP 2404-001305

C403,C404,C776,C777 C-CERAMIC,CHIP 2203-006208

C407,C411,C412,C627 C-CERAMIC,CHIP 2203-005482

C408,C409,C410,C414 C-CERAMIC,CHIP 2203-000812

C501,C505,C507,C511 C-CERAMIC,CHIP 2203-000854

C503,C514,C523,C538 C-CERAMIC,CHIP 2203-000812

C509,C522,C524,C540 C-CERAMIC,CHIP 2203-000278

C512,C788,C795 C-TA,CHIP 2404-001394

C513,C537 C-CERAMIC,CHIP 2203-005057

C516,C531,C534,C548 C-CERAMIC,CHIP 2203-000854

C520,C521,C545,C546 C-CERAMIC,CHIP 2203-000995

C543,C760,C762,C763 C-CERAMIC,CHIP 2203-005061

C602,C606 C-CERAMIC,CHIP 2203-006201

C603,C626,C632,C637 C-CERAMIC,CHIP 2203-000812

C610,C622,C644,C708 C-CERAMIC,CHIP 2203-000438

C611,C612,C617,C660 C-CERAMIC,CHIP 2203-000854

C615,C616,C621,C701 C-CERAMIC,CHIP 2203-000233

C618 C-CERAMIC,CHIP 2203-001385

C620 C-CERAMIC,CHIP 2203-000885

C623,C625,C635,C650 C-CERAMIC,CHIP 2203-006093

C624 C-CERAMIC,CHIP 2203-000278

C628,C759 C-TA,CHIP 2404-001274

C629,C718 C-CERAMIC,CHIP 2203-000995

C630,C631,C636,C642 C-CERAMIC,CHIP 2203-005482

C633 C-CERAMIC,CHIP 2203-000836

C634 C-TA,CHIP 2301-001512

C638,C739 C-CERAMIC,CHIP 2203-000254

C639 C-CERAMIC,CHIP 2203-000311

C640 C-TA,CHIP 2301-001197

C641 C-CERAMIC,CHIP 2203-000609

C643,C652,C655,C662 C-CERAMIC,CHIP 2203-000812

Page 15: Samsung SGH-Z300 service manual

SAMSUNG Proprietary-Contents may change without notice

Electrical Part List

4-3

This Document can not be used without Samsung's authorization

Design LOC Description SEC CODE

C645 C-CERAMIC,CHIP 2203-005503

C646 C-CERAMIC,CHIP 2203-002443

C647 C-CERAMIC,CHIP 2203-005234

C648,C649,C653,C656 C-CERAMIC,CHIP 2203-005482

C651,C658,C753 C-CERAMIC,CHIP 2203-000386

C654,C661,C665,C761 C-CERAMIC,CHIP 2203-006093

C657,C659,C666,C704 C-CERAMIC,CHIP 2203-005482

C663,C664,C711,C736 C-CERAMIC,CHIP 2203-000812

C667,C668,C669,C670 C-CERAMIC,CHIP 2203-000359

C703,C707,C719,C723 C-CERAMIC,CHIP 2203-000233

C705,C710,C712,C717 C-CERAMIC,CHIP 2203-000330

C709 C-TA,CHIP 2404-001105

C715 C-CERAMIC,CHIP 2203-001383

C720,C724,C726,C730 C-CERAMIC,CHIP 2203-005482

C725,C727,C732,C735 C-CERAMIC,CHIP 2203-000233

C728,C733 C-CERAMIC,CHIP 2203-005288

C729,C749 C-CERAMIC,CHIP 2203-000438

C731,C734,C737,C740 C-CERAMIC,CHIP 2203-005482

C738,C741,C744,C757 C-CERAMIC,CHIP 2203-000233

C742 C-CERAMIC,CHIP 2203-000330

C743,C748,C752,C758 C-CERAMIC,CHIP 2203-005482

C746 C-CERAMIC,CHIP 2203-000812

C747,C796 C-CERAMIC,CHIP 2203-006324

C750 C-CERAMIC,CHIP 2203-000679

C751 C-TA,CHIP 2404-001086

C754 C-CERAMIC,CHIP 2203-001124

C755 C-CERAMIC,CHIP 2203-000585

C756 C-TA,CHIP 2301-001214

C764,C773,C778,C779 C-CERAMIC,CHIP 2203-006093

C766,C786,C787,C789 C-CERAMIC,CHIP 2203-005061

C767,C772 C-CERAMIC,CHIP 2203-005482

C774,C775 C-CERAMIC,CHIP 2203-006137

C780,C781,C784,C785 C-CERAMIC,CHIP 2203-006093

C782,C783 C-TA,CHIP 2404-001312

C790,C791,C792 C-CERAMIC,CHIP 2203-005061

C793 C-CERAMIC,CHIP 2203-006093

C794 C-CERAMIC,CHIP 2203-006208

Page 16: Samsung SGH-Z300 service manual

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Electrical Part List

4-4

This Document can not be used without Samsung's authorization

Design LOC Description SEC CODE

CA500,ZD401 DIODE-ZENER 0406-001208

CN200 CONNECTOR 3709-001357

CN301 CONNECTOR 3709-001344

CN401 CONNECTOR 3710-002120

CN402 CONNECTOR 3711-005782

CN403 CONNECTOR 3711-005605

D100,ZD201 DIODE-ZENER 0404-001110

EAR500 EAR CONNECTOR 3722-002082

F401,F402,F403,F404 FILTER 2901-001286

F405,F704,F705 FILTER 2901-001286

F601 FILTER 2904-001550

F602 FILTER NEW-ITEM006

F603 FILTER NEW-ITEM015

F701 FILTER 2904-001439

F702 DUPLEXER NEW-ITEM004

F703 FILTER 2904-001438

HEA401 CONNECTOR-HEADER NEW-ITEM016

IRDA301 HSDL-3208 0604-001261

L202,L203 INDUCTOR-SMD NEW-ITEM014

L501,L502,L503,L504 INDUCTOR-SMD 2703-001938

L602,L621,L622,L623 INDUCTOR-SMD 2703-002155

L604,L606 INDUCTOR-SMD 2703-002208

L605,L607 INDUCTOR-SMD 2703-002203

L608,L610 INDUCTOR-SMD 2703-002207

L609 INDUCTOR-SMD 2703-002268

L611,L615 INDUCTOR-SMD 2703-002198

L612,L614 INDUCTOR-SMD 2703-002176

L613 INDUCTOR-SMD 2703-002170

L616,L619,L620 INDUCTOR-SMD 3301-001342

L617,R106,R107,R108 R-CHIP 2007-000171

L618 INDUCTOR-SMD 2703-002369

L701,L708 INDUCTOR-SMD 2703-002314

L702 INDUCTOR-SMD 2703-001786

L703 INDUCTOR-SMD 2703-001751

L704 INDUCTOR-SMD 2703-001747

L705 INDUCTOR-SMD 2703-001733

L706 INDUCTOR-SMD 2703-001750

Page 17: Samsung SGH-Z300 service manual

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Electrical Part List

4-5

This Document can not be used without Samsung's authorization

Design LOC Description SEC CODE

L707,L711 INDUCTOR-SMD 2703-002155

L709,L710 INDUCTOR-SMD 2703-001729

L712,L713 INDUCTOR-SMD 3301-001756

OSC100 VCO 2802-001182

OSC601 RF-VCO NEW-ITEM009

OSC701 VC-TCXO 2809-001280

OSC702 VCO NEW-ITEM012

Q1 COMP-SMD NEW-ITEM003

R109,R110,R111 R-CHIP 2007-000171

R117,R121,R124,R125 R-CHIP 2007-000171

R119,R153,R154 R-CHIP 2007-000143

R126,R128,R136,R701 R-CHIP 2007-007314

R127,R143,R155,R203 R-CHIP 2007-000171

R129,R404,R405,R406 R-CHIP 2007-000140

R130,R516,R521,R534 R-CHIP 2007-000141

R133 R-CHIP 2007-007318

R135 R-CHIP 2007-007135

R145,R225,R506,R544 R-CHIP 2007-000162

R149,R152,R205,R231 R-CHIP 2007-000148

R150,R151 R-CHIP 2007-001339

R201,R204 R-CHIP 2007-003015

R202 R-CHIP 2007-000157

R208 R-CHIP 2007-001298

R209 R-CHIP 2007-007468

R211,R226,R227,R228 R-CHIP 2007-000171

R219 R-CHIP 2007-000153

R223 R-CHIP 2007-000151

R229,R230,R233,R301 R-CHIP 2007-000171

R302,R303,R309,R310 R-CHIP 2007-000171

R307,R519,R538,R749 R-CHIP 2007-000148

R312,R609,R610,R611 R-CHIP 2007-001325

R316,R742,R745,R746 R-CHIP 2007-000775

R319,R320 R-CHIP 2007-003022

R322,R323,R325,R402 R-CHIP 2007-000171

R326 R-CHIP 2007-000166

R401,R409,R410,R412 R-CHIP 2007-000173

R403,R631 R-CHIP 2007-000172

Page 18: Samsung SGH-Z300 service manual

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Electrical Part List

4-6

This Document can not be used without Samsung's authorization

Design LOC Description SEC CODE

R407,R408,R612 R-CHIP 2007-000140

R414,R415,R702 R-CHIP 2007-000173

R416,R515,R517,R520 R-CHIP 2007-000171

R502,R734 R-CHIP 2007-000168

R503 R-CHIP 2007-003010

R507 R-CHIP 2007-000165

R510,R747,R748 R-CHIP 2007-000159

R522,R525,R528,R530 R-CHIP 2007-000171

R543,R705 R-CHIP 2007-000141

R601,R602,R603,R604 R-CHIP 2007-000171

R605,R606,R607,R608 R-CHIP 2007-000171

R613,R633,R634 R-CHIP 2007-001217

R614,R620 R-CHIP 2007-001290

R615,R616,R623,R624 R-CHIP 2007-000139

R617,R628,R630,R632 R-CHIP 2007-000138

R618 R-CHIP 2007-000145

R619 R-CHIP 2007-001325

R621 R-CHIP 2007-001306

R622 R-CHIP 2007-001301

R625 R-CHIP 2007-000147

R626 R-CHIP 2007-007142

R627,R717,R725,R728 R-CHIP 2007-000171

R629,R706 R-CHIP 2007-007491

R703,R707,R710 R-CHIP 2007-000138

R704 R-CHIP 2007-001156

R708 R-CHIP 2007-002965

R709 R-CHIP 2007-007306

R711,R716 R-CHIP 2007-001284

R713 R-CHIP 2007-007001

R714 R-CHIP 2007-000142

R715 R-CHIP 2007-000144

R720,R758,R765,R115 R-CHIP 2007-000162

R724,R726,R727,R730 R-CHIP 2007-000156

R729,R732,R733,R738 R-CHIP 2007-000171

R741,R743,R754,R755 R-CHIP 2007-000171

R757 R-CHIP 2007-001119

R759,R760,R761,R762 R-CHIP 2007-007021

Page 19: Samsung SGH-Z300 service manual

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Electrical Part List

4-7

This Document can not be used without Samsung's authorization

Design LOC Description SEC CODE

R763,R737 R-CHIP 2007-000148

R768,R769,R770 R-CHIP 2007-000171

RFSW601 RF CONNECTOR 3705-001355

TH100 NCP 1404-001224

U100 MSM 1205-002527

U201 POWER CHIP 1203-003335

U202 MIC2212-GMBML 1203-002969

U203 MIC2211-PSBML 1203-002860

U204 USBUF01W6 0407-001038

U301 FILTER NEW-ITEM013

U302 AUDIO CHIP 1204-002316

U501,U704 STG3699AQTR 1001-001306

U510 TC75S56FE 1202-001068

U600 ANTENNA SWITCH NEW-ITEM008

U601 BT Module NEW-ITEM001

U602 RTR6250 NEW-ITEM010

U603 GSM PAM 1201-002218

U701 WCDMA PAM 1201-002219

U702 RFL6200 1201-001984

U703 RFR 1205-002297

U705 STG3684QTR 1001-001248

U706 FSA4157L6X 1001-001265

U709 COMP-SMD NEW-ITEM002

U710 AMP NEW-ITEM011

U711 MIC5205-2.7BM5 1203-002565

U712 R1141Q181DTR 1203-003208

X200 CC7V-T1A-32.768K NEW-ITEM007

ZD402,ZD407,ZD409 DIODE-ZENER 0403-001387

ZD403,ZD404 DIODE-ZENER 0406-001190

ZD405,ZD406,ZD408 DIODE-ZENER 0406-001197

ZD410 DIODE-ZENER 0403-001387

ZD411 DIODE-ZENER 0406-001197

Page 20: Samsung SGH-Z300 service manual

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Electrical Part List

4-8

This Document can not be used without Samsung's authorization

Page 21: Samsung SGH-Z300 service manual

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5. Block Diagrams

5-1

5-1. RF Solution Block Diagram

MSM6250

RFR6200

Quaderature down

converter

UMTSRx BPF

RFL6200duplxer

AntennaSwitch

(Panasonic,GN06001L)

GSM_ANT_SEL0,1,2 from MSMSBDT, SBST, SBCK from MSM

TCXO12.9MHz

TRK_LO_ADJ

SBDT, SBST, SBCK from MSM

WCDMALocal VCO

(Alps, UCVA4XD03A)

UHF_VCO_EN

WCDMA PAM

(Agilent, acpm7881)

PA_ON from MSM

UMTSRx BPF

RTR6200TRK_LO_ADJ

Quaderature up converter

PLL#2

VCO_BAND_SEL

TX_I/Q, M/P

GSM PAM(RFMD, RF5146)

GSM TX VCO(Murata, MQW510AB97M)

Quaderature up converter

LO generator

Quaderature down converter

Quaderature down converter

GSM RX M/P

DCS RX M/P

RX_I/Q, M/P

SBDT, SBST, SBCK

RF_ON_TX_ON

PLL#1

RX_I/Q, M/P

GSMRx BPF

DCSRx BPF

GSM_PA_BAND from MSM

GSM_PA_PWR_SV from MSM

GSM_PA_PWR_CTL from MSMDCS_VCO_EN_N

GSM_VCO_EN_N

U-BSI RF block diagram, edited by TS

RTR6250PCSRx BPF

PCS RX M/P

19.2

skywork77328

TX

DCS_VCO_EN_N

Page 22: Samsung SGH-Z300 service manual

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Block Diagrams

This Document can not be used without Samsung's authorization

5-2

5-2. Base Band Solution Block Diagram

Page 23: Samsung SGH-Z300 service manual

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6. PCB Diagrams

6-1

6-1. Main PCB Top Diagram

Page 24: Samsung SGH-Z300 service manual

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PCB Diagrams

This Document can not be used without Samsung's authorization

6-2

6-2. Main PCB Bottom Diagram

Page 25: Samsung SGH-Z300 service manual

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7. Flow Chart of Troubleshooting

This Document can not be used without Samsung's authorization

7-1

7-1. Power On

Check the Battery Voltageis more than 3.3V

' Power On ' does not work

Change the Battery

END

No

Yes

U201PIN57(PS_HOLD)= 2.6V? Check the PMIC related to PS_HOLD

No

Yes

Check the Clock atX200=32KHZ Resolder OSC401

No

Yes

C227(VREG_MSMC) =1.375V? Check the PMIC

No

Yes

C225(VREG_MSME) = 1.8V?C221(VREG_MSMP) = 2.8V?C219(VREG_MSMA) = 2.8V?C210(VREG_TCXO) = 2.8V?

Check the PMICNo

Yes

Check for the clock atC751= 19.2MHz

Check the clock generation circuit

(related to OSC702)

No

Yes

Check the initial operation

Yes

Yes

Page 26: Samsung SGH-Z300 service manual

SAMSUNG Proprietary-Contents may change without noticeThis Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

7-2

Power On

SIM_IO

SIM_RST

SIM_CLK

VREG_RFTX

C241

C208

VREG_MSMA

C243

C793

C217

VREG_MSME

C207

C213 C219 C212 C224

R208

R204

C215

V_IN

C237

C777

C240

C228

C233

VREG_USIM

C229 C225 C230

C244

C216

R205

ZD201 RB751S-40

C222 C226 C210

C245

C214 VF_MSM

VREG_MSMC

R219

C201 VREG_RFRX

C205

L202

L203

NC R737

C248

C246

VBATT

C218

9 10

R211

1 2 3 4 5 6

7 8

C238

CN200

C220

TP419

VREG_USB R202

C204

TP205

V_IN

C247 C242 C235

64 VREG_WLAN

14 VSW_5V

31 VSW_MSMC

37 VSW_MSME

27 VSW_PA

44 XTAL_IN 46

XTAL_OUT

28 VREG_PA

69 VREG_RFRX1

67 VREG_RFRX2

VREG_RFTX 73

42 VREG_RUIM

81 VREG_SYNT

84 VREG_TCXO

10 VREG_USB

65 VDD_WLAN

VIB_DRV_N 25

12 VREG_5V

VREG_MMC 39

56 VREG_MSMA

32 VREG_MSMC

36 VREG_MSME

50 VREG_MSMP

83 VDD_MAIN

52 VDD_MSM

VDD_MSMC 33

VDD_MSME 35

29 VDD_PA

VDD_RF 71

VDD_RUIM 41

77 VDD_SPKR

USB_D_P 18 USB_ID 11

USB_OE_N 13

USB_SE0 19

16 USB_VBUS

48 VBACKUP

6 VBAT

2 VCHG

60 VCOIN

VDD_ANA 54

SPKR_IN_M

76 SPKR_IN_P

SPKR_OUT_M 79 75

SPKR_OUT_P

55 TCXO_EN

58 TCXO_IN

TCXO_OUT 53

15 USB_CTL_N

17 USB_DAT

20 USB_D_M

26 34

RUIM_M_CLK

30 RUIM_M_IO

40 RUIM_M_RST

43 RUIM_RST

SBCK 49 47 SBDT

51 SBST

45 SLEEP_CLK

74 SPKR_BYP

78

NC

N

C

87

PON_RESET_N 9

57 PS_HOLD

63 REF_BYP 62

REF_GND

61 REF_ISET

80 REF_OUT

RUIM_CLK 38

RUIM_IO

8

85

GN

D

21 GP1_DRV_N

5 ISNS_M

3 ISNS_P

KPDPWR_N 24

23 KPD_DRV_N LCD_DRV_N 22

MSM_INT_N 59

86

U201

ADC_BYP 1

70 AMUX_IN1 72 AMUX_IN2 82 AMUX_OUT

7 BAT_FET_N

68 CBL0PWR_N CBL1PWR_N

66

4 CHG_CTL_N

FLSH_DRV_N

C236

R766

R765

NC

VREG_MSMP

C223

C202

VREG_BT

C221

BAT201

NEG 2

POS 1

C209

R203

R209

C211

R225

C234

C776

R223

C203

X200

2

C231

Q1

D3

G

1

S

C206

VREG_MMC

C227

R201

C239

VREG_USIM

VF

BOOT_SW

KEY_LED_DRV CAM_FLASH_DRV

PON_RESET_N

USB_DAT_MSM

VREG_TCXO

USB_VBUS

CABLE_DET

PMIC_SBDT

MSM_SIM_RST

VF_MSM

JIG_ON

TCXO TCXO_EN

BUFF_TCXO

REF_OUT

VREG_SYNT

PMIC_SBST PMIC_SBCK

MSM_SIM_CLK

MSM_SIM_IO

SLEEP_CLK

USB_OE_MSM

USB_SEO_MSM

USB_D_P USB_D_M

PHONE_ON PS_HOLD

PM_INT_N

IN 3

IN 4

5 IN 6 IN

OUT 7

8 OUT 9 OUT

OUT 10

F405

1

G G

2

C407

IN 4 IN

IN 5

IN 6

7 OUT

OUT 8

OUT 9

10 OUT G

12

G

3

C406

8 OUT 9 OUT

OUT 10

1

GG

2

IN 3

IN 4

5 IN 6 IN

OUT 7

F404

7 OUT

OUT 8

OUT 9

10 OUT G

12

G

3 IN 4 IN

IN 5

IN 6

F705

7

8 OUT 9 OUT

OUT 10

1

GG

2

IN 3

IN 4

5 IN 6 IN

OUT

OUT G

3 IN 4 IN

IN 5

IN 6

7 OUT

OUT 8

OUT 9

10

F402

G

1 2

C408 C404 C402 C409

CAM_RESET

C401

66 66

67 67 68 68 69 69

7 7

70 70

8 8

9 9

59 59

6 6

60 60 61 61 62 62

63 63 64 64 65 65

51 51 52 52 53 53 54 54

55 55 56 56 57 57 58 58

44 44 45 45 46 46

47 47 48 48 49 49

5 5

50 50

37 37 38 38 39 39

4 4

40 40 41 41 42 42

43 43

3 3

30 30 31 31 32 32

33 33 34 34 35 35 36 36

22 22 23 23 24 24

25 25 26 26 27 27 28 28

29 29

15 15 16 16

17 17 18 18

19 19

2 2

20 20

21 21

HEA401

1 1

10 10 11 11 12 12

13 13 14 14

OUT 9

10 OUT G

12

G

3 IN 4 IN

IN 5

IN 6

7 OUT

OUT 8

C405 C403 C410

R416

MAIN_LCD_INIT

0

D2(7)

D2(6)

D2(5)

D2(4)

D2(2)

D2(1)

D2(0)

D2(3)

MAIN_LCD_RESET

VREG_MSMP

MLCD_VDD

CAM_RESET

VBATT VBATT

VCC_MOTOR_3.0

CAM_VGA_EN CAM_PD_MEGA

CAM_FLASH_EN CAM_FLASH_DRV

CAMIF_MCLK HALL_SW SUB_EL_DIM SUB_EL_EN

SUB_LCD_RESET MAIN_LCD_BACKLIGHT

SUB_EL_CS

MAIN_LCD_CS

A2(1)

OE2_N

WE2_N

D2(14)

D2(15)

D2(9)

I2C_SCL

CAM_PWR_ON

CAMIF_PCLK

CAMIF_HSYNC

EAR1O_P

CAMIF_VSYNC

EAR1O_N

VCC_CAM_1.8

VCC_CAM_2.8

I2C_SDA

CAMIF_DATA(0)

CAMIF_DATA(3)

CAMIF_DATA(2)

CAMIF_DATA(1)

CAMIF_DATA(6)

CAMIF_DATA(5)

CAMIF_DATA(4)

CAMIF_DATA(7)

D2(11)

D2(10)

D2(8) D2(12)

D2(13)

Page 27: Samsung SGH-Z300 service manual

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Flow Chart of Troubleshooting

This Document can not be used without Samsung's authorization

7-3

SIM_IO

SIM_RST

SIM_CLK

C208

C207

R208

C777

C229 C230

C244

R205

ZD201RB751S-40

C245

VF_MSM

R219

C205

NCR737

C248

C246

910

R211

1 2 3456

78

CN200

R202

C204

TP205

V_IN

C247

64VREG_WLAN

14VSW_5V

31VSW_MSMC

37VSW_MSME

27VSW_PA

44 XTAL_IN46

XTAL_OUT

28VREG_PA

69VREG_RFRX1

67VREG_RFRX2

VREG_RFTX73

42VREG_RUIM

81VREG_SYNT

84VREG_TCXO

10VREG_USB

65VDD_WLAN

VIB_DRV_N 25

12VREG_5V

VREG_MMC39

56VREG_MSMA

32VREG_MSMC

36VREG_MSME

50VREG_MSMP

83VDD_MAIN

52VDD_MSM

VDD_MSMC33

VDD_MSME35

29VDD_PA

VDD_RF71

VDD_RUIM41

77VDD_SPKR

USB_D_P18USB_ID11

USB_OE_N13

USB_SE019

16USB_VBUS

48VBACKUP

6VBAT

2VCHG

60VCOIN

VDD_ANA 54

SPKR_IN_M

76SPKR_IN_P

SPKR_OUT_M7975

SPKR_OUT_P

55TCXO_EN

58TCXO_IN

TCXO_OUT53

15 USB_CTL_N

17USB_DAT

20USB_D_M

2634

RUIM_M_CLK

30 RUIM_M_IO

40RUIM_M_RST

43 RUIM_RST

SBCK4947 SBDT

51SBST

45SLEEP_CLK

74SPKR_BYP

78

NC

NC

87

PON_RESET_N9

57PS_HOLD

63REF_BYP62

REF_GND

61REF_ISET

80REF_OUT

RUIM_CLK38

RUIM_IO

8

85G

ND

21GP1_DRV_N

5 ISNS_M

3ISNS_P

KPDPWR_N24

23KPD_DRV_NLCD_DRV_N 22

MSM_INT_N59

86

U201

ADC_BYP1

70 AMUX_IN172 AMUX_IN282 AMUX_OUT

7BAT_FET_N

68 CBL0PWR_NCBL1PWR_N

66

4 CHG_CTL_N

FLSH_DRV_N

C202

BAT201

NEG 2

POS 1

R203

R225

R223

X200

C231

C206

VREG_USIM

VF

BOOT_SW

PON_RESET_N

USB_DAT_MSM

USB_VBUS

CABLE_DET

PMIC_SBDT

MSM_SIM_RST

VF_MSM

JIG_ON

TCXOTCXO_EN

BUFF_TCXO

REF_OUT

PMIC_SBSTPMIC_SBCK

MSM_SIM_CLK

MSM_SIM_IO

SLEEP_CLK

USB_OE_MSM

USB_SEO_MSM

USB_D_PUSB_D_M

PHONE_ONPS_HOLD

PM_INT_N

Page 28: Samsung SGH-Z300 service manual

SAMSUNG Proprietary-Contents may change without noticeThis Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

7-4

Page 29: Samsung SGH-Z300 service manual

SAMSUNG Proprietary-Contents may change without notice

Flow Chart of Troubleshooting

This Document can not be used without Samsung's authorization

7-5

Page 30: Samsung SGH-Z300 service manual

SAMSUNG Proprietary-Contents may change without noticeThis Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

7-6

7-2. Initial

TP "RST" (PON_RESET_N) ="H"?

Initial Failure

Check the PMIC

END

No

Yes

Is HEA401 pin 56, 36(LCD RESET) OK?

Yes

Yes

No

Check the LCD RESET Circuit

Page 31: Samsung SGH-Z300 service manual

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Flow Chart of Troubleshooting

This Document can not be used without Samsung's authorization

7-7

Page 32: Samsung SGH-Z300 service manual

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Flow Chart of Troubleshooting

7-8

7-3. Sim Part

CN200 pin 1 = "H"?

Phone can't access SIM Card

Check the SIM POWER

Check the SIM Card

END

No

Yes

Yes

Yes

No

Check the 32KHz OSCAfter Power ON,

Check SIM_CLK Signal onCN200 pin3 in a few second

Yes

No

Replace PBAAfter SIM card insert,CN200 pin 2 = "H(SIM_RST)"?

Yes

Page 33: Samsung SGH-Z300 service manual

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Flow Chart of Troubleshooting

This Document can not be used without Samsung's authorization

7-9

SIM_IO

SIM_RST

SIM_CLK

C244

ZD201RB751S-40

C245

R219

NCR737

C248

C246

910

1 2 3456

78

CN200

TP205

C247

65VDD_WLAN

VIB_DRV_N 25

83VDD_MAIN

52VDD_MSM

VDD_MSMC33

VDD_MSME35

29VDD_PA

VDD_RF71

VDD_RUIM41

77VDD_SPKR

USB_D_P18USB_ID11

VDD_ANA 54

SPKR_IN_M

76SPKR_IN_P

SPKR_OUT_M7975

SPKR_OUT_P

20USB_D_M

2634

RUIM_M_CLK

30 RUIM_M_IO

40RUIM_M_RST

43 RUIM_RST

SBCK4947 SBDT

51SBST

74SPKR_BYP

78

NC

NC

87

PON_RESET_N9

57PS_HOLD

RUIM_CLK38

RUIM_IO

85G

ND

KPDPWR_N24

23KPD_DRV_N

MSM_INT_N59

86

68 CBL0PWR_NCBL1PWR_N

66

R225

R223VREG_USIM

BOOT_SW

PON_RESET_N

CABLE_DET

PMIC_SBDT

MSM_SIM_RST

PMIC_SBSTPMIC_SBCK

MSM_SIM_CLK

MSM_SIM_IO

USB_D_PUSB_D_M

PHONE_ONPS_HOLD

PM_INT_N

SIM

C233

C234C235

C246

C247C251

C255

C316

C415

CN200

L300

MODE1

PS_HOLD

R208R209

R220

U207

Page 34: Samsung SGH-Z300 service manual

SAMSUNG Proprietary-Contents may change without noticeThis Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

7-10

7-4. Speaker Part (Melody)

U302 pin29,45 = 3.0V?

Speaker does not work

Check the Clock signal atPin 2 of U302 (19.2MHz)

Check the clock generation circuit(related to U201 and U302)

END

No

Yes

No

Resolder or replace U302

U302 pin 3 ≒ 2.8V?(When U100 operate) Resolder U100

Yes

No

U302 pin 14≒ Battery Volt ?

Check the circuit related to"SPOUT1_L/SPOUT2_L" signal

Yes

No

Is Speaker working?

No

Yes

Change the Speaker

Yes

Yes

Page 35: Samsung SGH-Z300 service manual

SAMSUNG Proprietary-Contents may change without notice

Flow Chart of Troubleshooting

This Document can not be used without Samsung's authorization

7-11

Speaker

YMU_VDD_3.0V

C769

R303

VBATT

C306

C768 R742

R741 YMU_VDD_3.0V

C767

C327

R312

R316

L712

YMU_VDD_3.0V

VBATT

R747

C77

5

VS

S

7 VSS

47

_CS

35 _IRQ

1 _RD

3 _RST

_WR

48

14

SP

VD

D-R

23

SP

VS

S-L

13

SP

VS

S-R

24

4 TESTI

6 VDD

28 VDD

VREF 8

44

34 PIO0

33 PIO1

32 PIO2

5 PLLC

11 SPOUT1-L 26

SPOUT1-R

10 SPOUT2-L 27

SPOUT2-R

SP

VD

D-L

IOVDD

31 LED

MTR 30

9 NC

12 NC 25

NC

NC

50

NC

51

16

EQ

2-R

21 E

Q3-

L 15

EQ

3-R

22

49

GN

D

18

HP

OU

T-L/

MO

NO

HP

OU

T-R

19

45

IOV

DD

29

41 40

D3

D4

39 38

D5

D6

37

36 D7

EQ

1-L

17

EQ

1-R

20 E

Q2-

L

U302

A0

46

CLKI 2

43

D0

D1

42

D2

C313

C77

4

R745 R746

R748

C318

C315

L713

C316

SPOUT2_R

HP

OU

T_L

SPOUT2_L

MELODY_IRQ

MELODY_RESET

WE

2_N

D2(

1)

D2(

3)

D2(

5)

HP

OU

T_R

SPOUT1_L SPOUT1_R

D2(

0)

D2(

2)

D2(

4)

D2(

6)

D2(7)

ME

LOD

Y_C

S

A2(

1)

OE2_N

BUFF_TCXO

Page 36: Samsung SGH-Z300 service manual

SAMSUNG Proprietary-Contents may change without noticeThis Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

7-12

7-5. Microphone Part

Check the connectionfrom MIC

Check the circuitfrom U100 to MIC

Resolder MIC

Check & Resolder the U504, R509, R511, R508,

R512, C514, C510 and R510

END

No

Yes

Yes

Yes

Yes

No

Check the MIC Replace the MIC

Microphone does not work

Page 37: Samsung SGH-Z300 service manual

SAMSUNG Proprietary-Contents may change without notice

Flow Chart of Troubleshooting

This Document can not be used without Samsung's authorization

7-13

Microphone

R512

MIC_1.8V

C518

C509

C513

C510

C517

C514

R508

R509

R510

C508

C512

R511

C507

MIC-

MIC+

MIC1_N

MIC1_P

Page 38: Samsung SGH-Z300 service manual

SAMSUNG Proprietary-Contents may change without noticeThis Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

7-14

Page 39: Samsung SGH-Z300 service manual

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Flow Chart of Troubleshooting

This Document can not be used without Samsung's authorization

7-15

7-6. Key Data Input

When one of the keys ispushed,

is it displayed on LCD?

Check the Dome sheet & Key Pad

END

No

Yes

Yes

Check Initial Operation

When one of the keys ispushed,

KEY_IO signal is OK?

Replace the PBA

No

Yes

Page 40: Samsung SGH-Z300 service manual

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Flow Chart of Troubleshooting

7-16

7-7. Receiver Part

U501 pin 14 = 3.3V ? Resolder or replace U501

END

No

Yes

Yes

Receiver does not work

Is Receiver working? Replace the Receiver

No

Yes

No

Resolder or Replace U100

Yes

Check the soldering of thespeaker wire

No

Modify the speaker wire soldering

Yes

U501 pin 10 = "L"?

Page 41: Samsung SGH-Z300 service manual

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Flow Chart of Troubleshooting

This Document can not be used without Samsung's authorization

7-17

7-8. Back Light (for Color Main LCD)

Is BACKLIGHT setAlwaysON in the Menu?

Set BACKLIGHT on AlwaysON

END

No

Yes

Yes

Backlight does not work

Pin 58(MAIN_LCD_BACKLINGT) at

HEA401 is "High" ?

Resolder U100

No

Yes

Yes

Replace the LCD Module

Page 42: Samsung SGH-Z300 service manual

SAMSUNG Proprietary-Contents may change without noticeThis Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

7-18

Page 43: Samsung SGH-Z300 service manual

SAMSUNG Proprietary-Contents may change without notice

Flow Chart of Troubleshooting

This Document can not be used without Samsung's authorization

7-19

7-9. Key Back Light

Is BACKLIGHT setAlwaysON in the Menu?

Set BACKLIGHT on AlwaysON

END

No

Yes

Yes

Key Backlight does not work

CN601 pin 19Current > "20mA"?

No

Replace KeyPCB Module or

Yes

Page 44: Samsung SGH-Z300 service manual

SAMSUNG Proprietary-Contents may change without noticeThis Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

7-20

7-10. Camera part

"Camera" function does not work

Yes

NoConnect the camera moduleCheck the Camera

connector on LCD module

Yes

R219 = 1.8V?

R220 = 2.8V?

NoCheck R221 is "High" and Replace

U202.

Yes

C409 = 24MHz?No

Replace U100

Yes

Is there another problem?

END

Replace the cameramodule

Yes

Page 45: Samsung SGH-Z300 service manual

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Flow Chart of Troubleshooting

This Document can not be used without Samsung's authorization

7-21

Page 46: Samsung SGH-Z300 service manual

SAMSUNG Proprietary-Contents may change without noticeThis Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

7-22

7-11. GSM Receiver

C616>= -60dBm Resolder U600(ASM)

END

No

Yes

RX ONRF input : CH center freq +67.7kHz

Amp : -50dBm

Resolder F601(GSM SAW)

L611>= -65dBm

Resolder U602(RTR6250)

Yes

Yes

Yes

No

Page 47: Samsung SGH-Z300 service manual

SAMSUNG Proprietary-Contents may change without notice

Flow Chart of Troubleshooting

This Document can not be used without Samsung's authorization

7-23

Page 48: Samsung SGH-Z300 service manual

SAMSUNG Proprietary-Contents may change without noticeThis Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

7-24

7-12. GSM Transmitter

U603(PAM) Pin20>= 1V

Resolder U603(PAM)

TX ON (5Level)

Resolder OSC601(TXVCO)

OSC601(TXVCO)pin1

>= 2dBm

U603(PAM) pin11>= 20dBm

U600(ASM)pin22

>= 25dBm

Resolder U603(PAM)

Resolder U600(ASM)

Yes

Yes

Yes

Yes

No

No

No

No

END

Check U100(MSM6250)

Yes

Page 49: Samsung SGH-Z300 service manual

SAMSUNG Proprietary-Contents may change without notice

Flow Chart of Troubleshooting

This Document can not be used without Samsung's authorization

7-25

Page 50: Samsung SGH-Z300 service manual

SAMSUNG Proprietary-Contents may change without noticeThis Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

7-26

7-13. DCS Receiver

C615>= -60dBm Resolder U600(ASM)

END

No

Yes

RX ONRF input : CH center freq +67.7kHz

Amp : -50dBm

Resolder F602(DCS SAW)

L607>= -65dBm

Resolder U602(RTR6250)

Yes

Yes

Yes

No

Page 51: Samsung SGH-Z300 service manual

SAMSUNG Proprietary-Contents may change without notice

Flow Chart of Troubleshooting

This Document can not be used without Samsung's authorization

7-27

Page 52: Samsung SGH-Z300 service manual

SAMSUNG Proprietary-Contents may change without noticeThis Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

7-28

7-14. DCS Transmitter

U603(PAM) Pin20>= 1V

Resolder U603(PAM)

TX ON (0Level)

Resolder OSC601(TXVCO)

OSC601(TXVCO)pin5

>= 2dBm

U603(PAM) pin15>= 15dBm

U600(ASM)pin22

>= 20dBm

Resolder U603(PAM)

Resolder U600(ASM)

Yes

Yes

Yes

Yes

No

No

No

No

END

Check U100(MSM6250)

Yes

Page 53: Samsung SGH-Z300 service manual

SAMSUNG Proprietary-Contents may change without notice

Flow Chart of Troubleshooting

This Document can not be used without Samsung's authorization

7-29

Page 54: Samsung SGH-Z300 service manual

SAMSUNG Proprietary-Contents may change without noticeThis Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

7-30

7-15. PCS Receiver

C617>= -60dBm Resolder U600(ASM)

END

No

Yes

RX ONRF input : CH center freq +67.7kHz

Amp : -50dBm

Resolder F603(PCS SAW)

L612>= -65dBm

Resolder U602(RTR6250)

Yes

Yes

Yes

No

Page 55: Samsung SGH-Z300 service manual

SAMSUNG Proprietary-Contents may change without notice

Flow Chart of Troubleshooting

This Document can not be used without Samsung's authorization

7-31

Page 56: Samsung SGH-Z300 service manual

SAMSUNG Proprietary-Contents may change without noticeThis Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

7-32

7-16. PCS Transmitter

U603(PAM) Pin20>= 1V

Resolder U603(PAM)

TX ON (0Level)

Resolder OSC601(TXVCO)

OSC601(TXVCO)pin5

>= 2dBm

U603(PAM) pin15>= 15dBm

U600(ASM)pin22

>= 20dBm

Resolder U603(PAM)

Resolder U603(ASM)

Yes

Yes

Yes

Yes

No

No

No

No

END

Check U100(MSM6250)

Yes

Page 57: Samsung SGH-Z300 service manual

SAMSUNG Proprietary-Contents may change without notice

Flow Chart of Troubleshooting

This Document can not be used without Samsung's authorization

7-33

Page 58: Samsung SGH-Z300 service manual

SAMSUNG Proprietary-Contents may change without noticeThis Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

7-34

7-17. WCDMA Receiver

RX ONRF input : CH center freq

Amp : -50dBm

Yes

C705>= -60dBm

Check & Resolder U600(ASM)

No

Yes

C712>= -65dBm

C710>= -55dBm

Yes

Yes

No Resolder F702(DPLX)

No Check & Resolder U702(RFL6200)

C728>= -60dBm

Yes

No Resolder F701(WRX SAW)

END

Resolder U703(RFR6250)

Yes

Page 59: Samsung SGH-Z300 service manual

SAMSUNG Proprietary-Contents may change without notice

Flow Chart of Troubleshooting

This Document can not be used without Samsung's authorization

7-35

Page 60: Samsung SGH-Z300 service manual

SAMSUNG Proprietary-Contents may change without noticeThis Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

7-36

7-18. WCDMA Transmitter

TX ON (PDM for 23dBm)

C717>= -5Bm

C718>= -5dBm

U701(WPAM) pin8>= 20dBm

Resolder F702(WTX SAW)

Check & Resolder U701(WPAM)

C705>= 20dBm

Yes

Yes

Yes

Yes

No

No

No

END

Resolder F702(DPLX)

No

Check & Resolder U602(RTR6250)

Yes

C603>= 20dBm

Check & Resolder U600(ASM)

No

Yes

Page 61: Samsung SGH-Z300 service manual

SAMSUNG Proprietary-Contents may change without notice

Flow Chart of Troubleshooting

This Document can not be used without Samsung's authorization

7-37

Transmitter

C603

C640

C651

C661

C641

C663

3 O

UT

OU

T 4

C624

F602

2 GG

5

IN

1

L622 47nH

C627

L604

C773

C650

C772

C667

R620

C638

C636

L623

C612

C628

L607

R609

C622

1 3

OU

T

OU

T 4

F603

2 GG

5

IN

C611

NC7

16

NC

17 18

NC

4

PCSRX UMTSTRX 20

25 V

DD

GSM900RX 2

NC 7

NC

29

NC

31

8

NC

NC

91 0

NC NC 14 15

NC

GND 21

GND

23

24 G

ND

30 G

ND

32 G

ND

5

GSM850RX

13 G

SM

850/900TX

C

TL-B

27

28 C

TL-C

DCSRX 3

11 D

CS

/PC

ST

X

1

GND

GND

6

12 G

ND

19

GND U600

AN

T

22

ANT

26 C

TL-A

C621

R625

L605

C623

C645

C654

C630

L609

C644

L610

C634

R612

C626

3 O

UT

OU

T 4

C625

F601

2 GG

5

IN

1

R628

L621

R626

C653

C648

R634

C655

C646

C639

C670

C619

C632

R632

R614

C604

C642

AN

T602

R621

L616

C649

R617

R623

L614 L615

C637

C614

C618

C605

C657

C647

C633

R608

C658

C652

L618 L617

C615

R610

R613

L611

C617

R619

R616

L619

C613

L613

L612

C662

R755

C643

C660

C665

C668

RFS

W601

KM

S-510

2 A

C 3

G 1

G 4

R631

L608

L620

C616

17 VB

AT

T 2

VCC1A

6

VCC1B

GND 16 14

GND GND 13 12

GND

4

GSMIN

GSMOUT 11

RS

VD

19 20 V

AP

C 15

DCS/PCSOUT

18 EN

AB

LE

GND 5

GN

D

21 7

GN

D

GN

D

8 9

GN

D 10

GN

D

U603

BS 1

DCS/PCSIN 3

R629

C631

L606

C656

R618

10

14

13 G

OU

T1

5

OU

T2

1

2

SW

1 S

W2

4

8

VB1

12

VB2

VC

O

SC

601

3 GG

67

GG

11 9 G

G

C666

R622

C669

C635

C620

R627

R615

R624

AN

T603

C629

C659

L602

R633

C664

10

VD

DA

4

15

VD

DA

5

23 VDDA6

26 VDDA7

27 VDDA8

31

VD

DA

9 43

VD

DM

8

VTU

NE

_RE

F

41

VD

DA

12

48 VDDA13

50 VDDA14

52 VDDA15

54 VDDA16

56 VDDA17

5

VD

DA

2

7

VD

DA

3

53 UMTS1900_OUT

51 UMTS2100_OUT

55 UMTS800_OUT

49 VCONTROL

9

VC

O_TU

NE

4

VD

DA

1

36

VD

DA

10 39

VD

DA

11

46 SBST

6

TCX

O

19 TX_IN 18 TX_IP

40

TX_M

OD

_CP

17 TX_QN 16 TX_QP

42

TX_V

CO

_FB

14

RX

_IN

13

RX

_IP

12

RX

_QN

11

RX

_QP

32

RX

_VC

O_IN

33

R_B

IAS

44 SBCK 45 SBDT

25 GSM1900_INP

21 GSM850_INN

22 GSM850_INP

38

GS

M900_IN

N 37

GS

M900_IN

P

58 NC1 59 NC2

47 RF_ON

29

CP

_HO

LD2

20 DAC_REF

3

FAQ

1

28 FAQ2

57 GND

34

GS

M1800_IN

N 35

GS

M1800_IN

P

24 GSM1900_INN

U602

2

CP

1

30

CP

2

1

CP

_HO

LD1

R611

VR

EG

_RFTX

R630

GS

M_P

A_P

WR

_SV

VB

ATT

GS

M_P

A_P

WR

_CTL

GS

M_P

A_B

AN

D

TCX

O

PC

S_R

XM

P

CS

_RX

P

UM

TS_A

NT

GS

M_R

XM

GS

M_R

XP

VR

EG

_RFTX

VR

EG

_SY

NT

VR

EG

_RF

TX

TX_A

GC

_AD

J

VR

EG

_MS

MP

VR

EG

_SY

NT

VR

EG

_RFTX

DC

S_R

XP

GS

M_R

XM

GS

M_R

XP

FAQ

2

RX

_VC

O

RF_O

N_TX

_ON

RX

_IM

RX

_IP

RX

_QM

RX

_QP

SB

CK

SB

DT

SB

ST

TX_IM

TX

_IP

MO

D_C

P

TX_Q

M

TX_Q

P

TXV

CO

UM

TS_TX

RF

VR

EG

_RFR

X

GS

M_A

NT_S

EL2_N

GS

M_A

NT_S

EL1_N

GS

M_A

NT_S

EL0_N

PC

S_R

XP

PC

S_R

XM

CP

2

DA

C_R

EF

DC

S_R

XM

TXV

CO

VR

EG

_RFTX

DC

S_R

XP

DC

S_R

XM

AN

T-JTAG

MO

D_C

P

DC

S_V

CO

_EN

_N

GS

M_V

CO

_EN

_N

Page 62: Samsung SGH-Z300 service manual

SAMSUNG Proprietary-Contents may change without noticeThis Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

7-38

WCDMA Part

6.3V

10V

50V

C754

R738

R770

C727

L702

C723

C719

R710

100

C722

C728

NC

R

712

C705

C751

R702

C753

C746

L710

C736

R703

L707

C703

C716

C740

C744

L705 C

713

1NF

C749

C707

C708

2

C752

F703

GN

D1

34

GN

D2

IN

1 O

UT

L708

G

G 5

IN

1 O

UT

3 4

OU

T

C725

F701

2

R715

L706

C756

C704

R708

C743

R714

C706

C731

C735

C733

C711

VC

-TC

XO

-214C5

OS

C701

GN

D

2

OU

T

3 4

VC

C

1

VC

ON

L711

C748

100NF

R706

R716

7 V

CC

5

VC

TL

C755

OS

C702

EN

AB

LE

3

2

G

4

G

6

G

G 8

OU

T

1

L703

C729

R718

R705

4 1 V

DD

1

5 VD

D2

VD

D3 10

9 G

ND

11

GND

GND

12 13

GND

GND 14 15

GND

RFIN

2

RFO

UT 8

VC

TL U701

3 G

ND

GND 16

GN

D 6 7

GN

D

C717

L701 C710

C741

C747

2.2UF

8 UM

TS

_INP

6 4 V

DD

A1

14 VDDA2

17

VDDA3

VDDA4 18

VDDA5 20

27 V

DD

A6

29 V

DD

A7

VDDA8 39

VD

DM

23

45 46

NC2

RX

_IM

30

31 R

X_IP

RX_QM 33

RX_QP 34 R_BIAS 38

SB

CK

25

SB

DT

26

SB

ST

24

28 T

CX

O

UM

TS

_INM

GN

D3

5 7 GN

D4

9 GN

D5

GN

D6

11

GND7 13

GN

D8

22

GND9 32 LO_INM 15

16

LO_INP

19

LO_OUT

NC1

DN

C4

DNC5 36

DNC6 37

DNC7 40

GN

D1

1

GND10 35

GND11 41 42

GND12 GND13 43

44

GND14 G

ND

2 3

U703

DN

C1

2

10 DN

C2

DNC3 12

21

C718

C750

R701

R709

C724

C737

C701

R704

C712 R

719

R711

C734

C739

10NF

C709

C720

R713

UM

TS

_OU

T

VDDA 15

VD

DM

9

NC NC

22 16

R_BIAS

7

SBCK

10 S

BD

T

SBST 8

3 UM

TS

_BIA

S

UM

TS

_IN

4

11

5

6

GND

GN

D 12

13 G

ND

14

GND

GND

17 18

GND 19

GND

21

U702

2 DN

C

GN

D

1

GND

20

GN

D

C726

F702

AN

T 3 4

GN

D

2 R

X

1 TX

L709

C742

C732

R717

R707

C738

C702

C715

C730

C757

RX

_VC

O

VB

ATT

L704

TC

XO

VR

EG

_RF

RX

CP

2

VR

EG

_SY

NT

FA

Q2

UH

F_VC

O_E

N

TR

K_LO

_AD

J

VR

EG

_RF

RX

UM

TS_A

NT

UM

TS_TX

RF

PA

_ON

UM

TS

_RX

P

VR

EG

_RF

RX

VR

EG

_MS

MP

UM

TS

_RX

P

UM

TS

_RX

M

UM

TS

_RX

M

VR

EG

_TC

XO

SB

CK

SB

DT

SB

ST

VR

EG

_MS

MP

SB

DT

SB

CK

SB

ST

TC

XO

RX

_IP

RX

_IM

RX

_QM

R

X_Q

P

VR

EG

_RF

RX

Page 63: Samsung SGH-Z300 service manual

SAMSUNG Proprietary-Contents may change without notice

Flow Chart of Troubleshooting

This Document can not be used without Samsung's authorization

7-39

Page 64: Samsung SGH-Z300 service manual

SAMSUNG Proprietary-Contents may change without noticeThis Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

7-40