jvc ux g305 service manual

Upload: klauszpeter

Post on 06-Jul-2018

421 views

Category:

Documents


25 download

TRANSCRIPT

  • 8/17/2019 Jvc Ux g305 Service manual

    1/38

    SERVICE MANUAL

    COPYRIGHT © 2008 Victor Company of Japan, Limited No.MB665

  • 8/17/2019 Jvc Ux g305 Service manual

    2/381-2 (No.MB665)

    SPECIFICATION

    UX-G300 B/E/EN/EV

    UX-G303 E/EN/EV

    UX-G305 E/EN/EV

    Specifications and appearance are subject to change without prior notice.

    Amplifier section

    OUTPUT POWER 60 W (30 W + 30 W) at 4 Ω (10% THD)

    Speakers/Impedance 4 Ω - 16 Ω

     Audio input AUDIO IN 500 mV/47 kΩ (at “IN LVL1”)

    250 mV/47 kΩ (at “IN LVL2”)

    125 mV/47 kΩ (at “IN LVL3”)

    Digital input USB MEMORY

    Tuner section

    FM tuning range 87.50 MHz - 108.00 MHz

     AM (MW) tuning range 522 kHz - 1 629 kHz

    CD player section

    Dynamic range 88 dB

    Signal-to-noise ratio 85 dB

    Wow and flutter Immeasurable

    USB storage

    USB specification Compatible with USB 2.0 Full Speed

    Compatible device Mass storage class

    Compatible file system "FAT16,FAT32"

    Bus power supply Max. 500 mA

    Speakers

    Speaker units 10 cm cone x 1

    Impedance 4 Ω

    Dimensions (approx.) 160 mm x 250 mm x 150 mm (W/H/D)

    Mass (approx.) 1.6 kg each

    General

    Power requirements "AC 230~,50 Hz"

    Power supply to USB mass storage class device DC 5 V =500 mA

    Power consumption 20 W (power on)

    6.5 W (standby mode)

    1 W or less (Save Mode)

    Dimensions (W x H x D) 165 mm x 251 mm x 269 mm

    Mass 2.6 kg

  • 8/17/2019 Jvc Ux g305 Service manual

    3/38(No.MB665)1

    UX-G300 US/UN/UB/UG/A/UW/UF/UT

    UX-G305UT

    Specifications and appearance are subject to change without prior notice.

    Amplifier section

    OUTPUT POWER 60 W (30 W + 30 W) at 4 Ω (10% THD)

    Speakers/Impedance 4 Ω - 16 Ω

     Audio input AUDIO IN 500 mV/47 kΩ (at “IN LVL1”)

    250 mV/47 kΩ (at “IN LVL2”)

    125 mV/47 kΩ (at “IN LVL3”)

    Digital input USB MEMORY

    Tuner section

    FM tuning range 87.50 MHz - 108.00 MHz

     AM (MW) tuning range 530 kHz - 1 710 kHz (in 10 kHz spacing)

    531 kHz - 1 710 kHz (in 9 kHz spacing)

    CD player section

    Dynamic range 88 dB

    Signal-to-noise ratio 85 dB

    Wow and flutter Immeasurable

    USB storageUSB specification Compatible with USB 2.0 Full Speed

    Compatible device Mass storage class

    Compatible file system FAT16, FAT32

    Bus power supply Max. 500 mA

    Speakers

    Speaker units 10 cm cone x 1

    Impedance 4 Ω

    Dimensions (approx.) 160 mm x 250 mm x 150 mm (W/H/D)

    Mass (approx.) 1.6 kg each

    General

    Power requirements AC 110 V - AC 240 V , 50/60 Hz

     AC 240 V , 50 Hz (only Australia)

     AC 220 V , 50 Hz (only Hong Kong)

    Power supply to USB mass storage class device DC 5 V =500 mA

    Power consumption 20 W (power on)

    6.5 W (standby mode)

    1 W or less (Save Mode)

    Dimensions (W x H x D) 165 mm x 251 mm x 269 mm

    Mass 2.6 kg

  • 8/17/2019 Jvc Ux g305 Service manual

    4/381-4 (No.MB665)

    SECTION 1

    PRECAUTION

    1.1 Safety Precautions

    (1) This design of this product contains special hardware and

    many circuits and components specially for safety purpos-

    es. For continued protection, no changes should be made

    to the original design unless authorized in writing by the

    manufacturer. Replacement parts must be identical tothose used in the original circuits. Services should be per-

    formed by qualified personnel only.

    (2) Alterations of the design or circuitry of the product should

    not be made. Any design alterations of the product should

    not be made. Any design alterations or additions will void

    the manufacturers warranty and will further relieve the

    manufacture of responsibility for personal injury or property

    damage resulting therefrom.

    (3) Many electrical and mechanical parts in the products have

    special safety-related characteristics. These characteris-

    tics are often not evident from visual inspection nor can the

    protection afforded by them necessarily be obtained by us-ing replacement components rated for higher voltage, watt-

    age, etc. Replacement parts which have these special

    safety characteristics are identified in the Parts List of Ser-

    vice Manual. Electrical components having such features

    are identified by shading on the schematics and by ( ) on

    the Parts List in the Service Manual. The use of a substitute

    replacement which does not have the same safety charac-

    teristics as the recommended replacement parts shown in

    the Parts List of Service Manual may create shock, fire, or 

    other hazards.

    (4) The leads in the products are routed and dressed with ties,

    clamps, tubings, barriers and the like to be separated from

    live parts, high temperature parts, moving parts and/or sharp edges for the prevention of electric shock and fire

    hazard. When service is required, the original lead routing

    and dress should be observed, and it should be confirmed

    that they have been returned to normal, after reassem-

    bling.

    (5) Leakage shock hazard testing

     After reassembling the product, always perform an isola-

    tion check on the exposed metal parts of the product (an-

    tenna terminals, knobs, metal cabinet, screw heads,

    headphone jack, control shafts, etc.) to be sure the product

    is safe to operate without danger of electrical shock.Do not

    use a line isolation transformer during this check.

    • Plug the AC line cord directly into the AC outlet. Using a"Leakage Current Tester", measure the leakage current

    from each exposed metal parts of the cabinet, particular-

    ly any exposed metal part having a return path to the

    chassis, to a known good earth ground. Any leakage cur-

    rent must not exceed 0.5mA AC (r.m.s.).

    • Alternate check method

    Plug the AC line cord directly into the AC outlet. Use an

     AC voltmeter having, 1,000Ω per volt or more sensitivity

    in the following manner. Connect a 1,500Ω 10W resistor 

    paralleled by a 0.15µF AC-type capacitor between an ex-

    posed metal part and a known good earth ground.

    Measure the AC voltage across the resistor with the AC

    voltmeter.

    Move the resistor connection to each exposed metal

    part, particularly any exposed metal part having a return

    path to the chassis, and measure the AC voltage across

    the resistor. Now, reverse the plug in the AC outlet andrepeat each measurement. Voltage measured any must

    not exceed 0.75 V AC (r.m.s.). This corresponds to 0.5

    mA AC (r.m.s.).

    1.2 Warning

    (1) This equipment has been designed and manufactured to

    meet international safety standards.

    (2) It is the legal responsibility of the repairer to ensure that

    these safety standards are maintained.

    (3) Repairs must be made in accordance with the relevant

    safety standards.

    (4) It is essential that safety critical components are replaced

    by approved parts.

    (5) If mains voltage selector is provided, check setting for local

    voltage.

    1.3 Caution

    Burrs formed during molding may be left over on some parts

    of the chassis.

    Therefore, pay attention to such burrs in the case of pre-

    forming repair of this system.

    1.4 Critical parts for safety

    In regard with component parts appearing on the silk-screen

    printed side (parts side) of the PWB diagrams, the parts that are

    printed over with black such as the resistor ( ), diode ( )and ICP ( ) or identified by the " " mark nearby are critical

    for safety. When replacing them, be sure to use the parts of the

    same type and rating as specified by the manufacturer.

    (This regulation dose not Except the J and C version)

    Good earth ground

    Place thisprobe oneach exposedmetal part.

     AC VOLTMETER(Having 1000ohms/volts,or more sensitivity)

    1500 10W

    0.15 F AC TYPE

  • 8/17/2019 Jvc Ux g305 Service manual

    5/38(No.MB665)1

    1.5 Preventing static electricity

    Electrostatic discharge (ESD), which occurs when static electricity stored in the body, fabric, etc. is discharged, can destroy the las

    diode in the traverse unit (optical pickup). Take care to prevent this when performing repairs.

    1.5.1 Grounding to prevent damage by static electricity

    Static electricity in the work area can destroy the optical pickup (laser diode) in devices such as laser products.

    Be careful to use proper grounding in the area where repairs are being performed.

    (1) Ground the workbench

    Ground the workbench by laying conductive material (such as a conductive sheet) or an iron plate over it before placing th

    traverse unit (optical pickup) on it.

    (2) Ground yourself Use an anti-static wrist strap to release any static electricity built up in your body.

    (3) Handling the optical pickup

    • In order to maintain quality during transport and before installation, both sides of the laser diode on the replacement optic

    pickup are shorted. After replacement, return the shorted parts to their original condition.(Refer to the text.)

    • Do not use a tester to check the condition of the laser diode in the optical pickup. The tester's internal power source can eas

    destroy the laser diode.

    1.6 Handling the traverse unit (optical pickup)

    (1) Do not subject the traverse unit (optical pickup) to strong shocks, as it is a sensitive, complex unit.

    (2) Cut off the shorted part of the flexible cable using nippers, etc. after replacing the optical pickup. For specific details, refer to th

    replacement procedure in the text. Remove the anti-static pin when replacing the traverse unit. Be careful not to take too long

    time when attaching it to the connector.

    (3) Handle the flexible cable carefully as it may break when subjected to strong force.

    (4) I t is not possible to adjust the semi-fixed resistor that adjusts the laser power. Do not turn it.

    1.7 Attention when traverse unit is decomposed

    *Please refer to "Disassembly method" in the text for the pickup unit.

    • Apply solder to the short land sections before the card wire is disconnected from the connecto on the servo board. (If the card wi

    is disconnected without applying solder, the pickup may be destroyed by static electricity.)

    • In the assembly, be sure to remove solder from the short land sections after connecting the card wire.

    1M

    Conductive material

    (conductive sheet) or iron palate

    (caption)

     Anti-static wrist strap

    Solder short land section

  • 8/17/2019 Jvc Ux g305 Service manual

    6/381-6 (No.MB665)

    1.8 Important for laser products

    1.CLASS 1 LASER PRODUCT

    2.CAUTION :(For U.S.A.) Visible and/or invisible class II laser radiation

      when open. Do not stare into beam.  (Others) Visible and/or invisible class 1M laser radiation  when open. Do not view directly with optical instruments.

    3.CAUTION : Visible and/or invisible laser radiation when

      open and inter lock failed or defeated. Avoid direct  exposure to beam.

    4.CAUTION : This laser product uses visible and/or invisiblelaser radiation and is equipped with safety switches whichprevent emission of radiation when the drawer is open andthe safety interlocks have failed or are defeated. It isdangerous to defeat the safety switches.

    5.CAUTION : If safety switches malfunction, the laser is able  to function.

    6.CAUTION : Use of controls, adjustments or performance ofprocedures other than those specified here in may result inhazardous radiation exposure.

    REPRODUCTION AND POSITION OF LABELS and PRINT

    ! Please use enough caution not to

    see the beam directly or touch it

    in case of an adjustment or operation

    check.

    WARNING LABEL and PRINT

  • 8/17/2019 Jvc Ux g305 Service manual

    7/38(No.MB665)1

    SECTION 2

    SPECIFIC SERVICE INSTRUCTIONS

    New CD mechanism was added.

    In a model using new CD mechanism for, it stick a blue label for identification on the back side.

    When it repair the CD mechanism of an article sticking this label on, please use a parts list of FMU-VK1-2M.

    SECTION 3DISASSEMBLY

    3.1 Main body (Used figure are UX-G300E)

    3.1.1 Removing the Metal Cover (See Fig.1, 2)

    (1) Remove the seven screws A  attaching the Metal cover.

    (See Fig.1)

    (2) Remove the two screws B attaching the both side of the

    Metal cover. (See Fig.2)

    Fig.1

    Fig.2

     A label for identification

    A A

    B

    http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-

  • 8/17/2019 Jvc Ux g305 Service manual

    8/381-8 (No.MB665)

    3.1.2 Removing the Tuner pack (See Fig.3, 4)

    (1) Disconnect the card wire from Tuner pack connected to

    connector CN306 of the Micom board. (See Fig.3)

    (2) Remove the two screws C attaching the Tuner pack. (See

    Fig.4)

    Fig.3

    Fig.4

    3.1.3 Removing the Rear panel (See Fig.5)

    (1) Remove the five screws D attaching the Rear panel.

    Fig.5

    3.1.4 Removing the Amp board (See Fig.6)

    (1) Disconnect the connector wire from Power board connect-

    ed to connector CN640 of the Amp board.

    (2) Disconnect the card wire from Amp board connected toconnector CN520 of the Micom board.

    (3) Remove the one screw E attaching the Amp board.

    Fig.6

    CN306

    C

    D

    ECN520

    CN640

    http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-

  • 8/17/2019 Jvc Ux g305 Service manual

    9/38(No.MB665)1

    3.1.5 Removing the CD mechanism (See Fig.7 to 9)

    (1) Disconnect the card wire from CD mechanism connected

    to connector CN360 and CN362 of the Connection board.

    (See Fig.7)

    (2) Disconnect the card wire from CD mechanism connected

    to connector CN205 of the Power board. (See Fig.7)

    (3) Remove the two screws F attaching the CD mechanism.

    (See Fig.8)

    (4) Disconnect the connector wire from USB jack board con-

    nected to connector CN802 of the CD servo control board.

    (See Fig.9)

    Fig.7

    Fig.8

    Fig.9

    CN360CN362CN205

    F

    CN802

    http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-

  • 8/17/2019 Jvc Ux g305 Service manual

    10/381-10 (No.MB665)

    3.1.6 Removing the Mecha chassis (See Fig.10, 11)

    (1) Remove the two screws G attaching the both side of the

    Front panel. (See Fig.10)

    (2) Disconnect the card wire from Connection board connect-

    ed to connector CN311 of the Micom board. (See Fig.11)

    Fig.10

    Fig.11

    G

    CN311

    http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-

  • 8/17/2019 Jvc Ux g305 Service manual

    11/38(No.MB665)1-

    3.1.7 Removing the Front panel (See Fig.12 to 14)

    (1) Disconnect the card wire from FL board connected to con-

    nector CN304 of the Micom board. (See Fig.12)

    (2) Disconnect the card wire from Volume board connected to

    connector CN303 of the Micom board. (see Fig.12)

    (3) Remove the two screws H attaching the Front panel. (See

    Fig.13)

    (4) Disengage two hooks a  engaged both side of the Front

    panel. (See Fig.14)

    (5) Disengage one hook b engaged bottom side of the Front

    panel. (See Fig.13)

    Fig.12

    Fig.13

    Fig.14

    CN304

    CN303

    hook bH H

    hook a

    http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-

  • 8/17/2019 Jvc Ux g305 Service manual

    12/381-12 (No.MB665)

    3.1.8 Removing the Micom board (See Fig.15, 16)

    (1) Remove the two screws J attaching the Micom board. (See

    Fig.15)

    (2) Disconnect the flat cable wire from Micom board connected

    to connector CN201 and CN203 of the Power board. (See

    Fig.16)

    (3) Disconnect the board to board connector connected to

    connector CN204 of the Power board. (See Fig.16)

    (4) Disconnect the board to board connector connected to

    connector CN803 of the USB jack board. (See Fig.16)

    Fig.15

    Fig.16

    3.1.9 Removing the USB jack board (See Fig.17)

    (1) Remove the three screws K attaching the USB jack board.

    3.1.10 Removing the Power board (See Fig.17)

    (1) Disconnect the power cord connected to connector CN200

    of the Power board.

    (2) Remove the four screws L attaching the Power board.

    Fig.17

    J

    CN204CN803 CN203

    CN201

    CN200

    K

    L L

    http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-

  • 8/17/2019 Jvc Ux g305 Service manual

    13/38(No.MB665)1-

    3.1.11 Removing the FL board (See Fig.18)

    (1) Remove the seven screws M attaching the FL board.

    3.1.12 Removing the Volume board (See Fig.18)

    (1) Remove the volume knob.

    (2) Remove the nine screws N attaching the Volume board.

    Fig.18

    M

    N

    N

    http://-/?-http://-/?-http://-/?-http://-/?-

  • 8/17/2019 Jvc Ux g305 Service manual

    14/381-14 (No.MB665)

    3.2 CD mechanism assembly

    • Remove the CD mechanism assembly from main body.

    3.2.1 Removing the CD cover

    (See Fig.1)

    (1) Remove the two screws A attaching the CD cover from bot-

    tom side of CD mechanism assembly.

    (2) Lift up the CD cover from disengage boss a  of the CD

    mechanism assembly.

    (3) Slide the CD cover to direction of the arrow and remove theCD cover from fixing part of b.

    (4) Remove the CD cover.

    Fig.1

    3.2.2 Removing the tray assembly

    (See Fig.2 and 3)

    • Remove the CD cover.

    (1) Press slide cam and pull out the tray assembly to direction

    of the arrow from right side of CD mechanism assembly.

    (See Fig.2)

    (2) Remove the two screws B  attaching the tray assembly

    from upper side of CD mechanism. (See Fig.3)

    (3) Remove the bussing of the tray assembly from boss c of 

    the CD mechanism assembly and remove the tray assem-

    bly. (See Fig.3)

    Fig.2

    Fig.3

    A

    ACD cover 

    CD mechanism assembly

    Boss a

    Boss a

    Fixing part b

    Fixing part b

    Tray assembly CD mechanism assembly

    Slide cam

    Bussing

    Boss c

    Tray assemblyCD mechanism assembly

    Boss c

    B

    http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-

  • 8/17/2019 Jvc Ux g305 Service manual

    15/38(No.MB665)1-

    3.2.3 Removing the traverse mechanism assembly

    (See Fig.4)

    (1) Remove the four screws C attaching the traverse mecha-

    nism assembly from bottom side of CD mechanism assem-

    bly.

    (2) Disconnect the card wire from connector CN602 of the CD

    servo board and then take out the traverse mechanism as-

    sembly and CD servo board together.

    Reference:

    When reattaching the traverse mechanism assembly, the cardwire should through the part d.

    Fig.4

    CD mechanism assembly

    CN602

    CD servo board

    C C

    d

    Card wire

    Traverse mechanism assembly

    http://-/?-http://-/?-

  • 8/17/2019 Jvc Ux g305 Service manual

    16/381-16 (No.MB665)

    3.2.4 Removing the CD servo board

    (See Fig.5 and 6)

    • Remove the traverse mechanism assembly.

    (1) Remove the two screws D attaching the CD servo board

    from bottom side of traverse mechanism assembly. (See

    Fig.5)

    (2) Remove the solder from solder part e  of the CD servo

    board. (See Fig.5)

    (3) Remove the yellow wire from solder part f  of the CD servo

    board. (See Fig.5)

    (4) Remove the white wire from solder part g of the CD servo

    board. (See Fig.5)

    (5) Remove the CD servo board to upper side, disengage the

    hook c to direction of the arrow 1 then turn over the CD ser-

    vo board. (See Fig.5)

    (6) Solder to short land part j of pickup. (See Fig.6)

    (7) Release the lock of connector CN601 to direction of the ar-

    row 2 and disengage the card wire. (See Fig.6)

    Caution:

    • Solder to short land part j of the pickup then disconnect the

    card wire from connector CN601 of the CD servo board. If 

    disconnect the card wire before soldering, pickup is make

    sure destroyed by static electricity. (See Fig.6)

    • When reattaching the CD servo board, connect the card wireto connector CN601 and then remove the solder of short

    land part j of the pickup.

    Fig.5

    Fig.6

    Traverse mechanism assemblyCD servo board

    Yellow wire

    White wire

    Solder part e

    Solderpart f 

    Solder

    part g

    DD

    Hook c

    CN601

    Hook c

    1 1

    Pickup

    Short land part j

    22

    Traverse mechanism assembly

    CD servo board

    CN601

    http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-

  • 8/17/2019 Jvc Ux g305 Service manual

    17/38(No.MB665)1-

    3.2.5 Removing the pickup

    (See Fig.7 to 9)

    • Remove the traverse mechanism assembly.

    (1) Remove the one screw E attaching the plate from upper 

    side of traverse mechanism assembly. (See Fig.7)

    (2) Remove the plate from fixing part k then take out the plate.

    (See Fig.7)

    (3) Remove the two screws F attaching the LEAD spring and

    then take out the LEAD spring. (See Fig.8)

    (4) Take out the feed gear, and then remove the shaft of pick-

    up from part m of the traverse mechanism assembly. (See

    Fig.8)

    (5) Remove the pickup from part n of the traverse mechanism

    assembly and then take out pickup with shaft. (See Fig.8)

    (6) Release the shaft from pickup. (See Fig.8)

    (7) Solder the short land part p of the pickup. (See Fig.9)

    (8) Release the lock of the connector to direction of the arrow,

    and then disconnect the card wire. (See Fig9)

    Caution:

    • Solder to short land part p of the pickup then disconnect the

    card wire from connector. If disconnect the card wire before

    soldering, pickup is make sure destroyed by static electricity.

    (See Fig.9)

    • When reattaching the pickup, connect the card wire to con-nector and then remove the solder from short land part p.

    (See Fig.9)

    3.2.6 Attaching the pickup

    (See Fig.7 to 10)

    • Please refer the "Removing the pickup".

    (1) Connect the card wire to connector of pickup, and then re-

    move the solder from short land part p of the pickup. (See

    Fig.9)

    (2) Attach the shaft to pickup. (See Fig.8)

    (3) Fit the pickup to part n of the traverse mechanism and then

    attach the end of the shaft to part k. (See Fig.8)

    (4) Attach the LEAD spring and feed gear. (See Fig.8)

    (5) Attach the plate. (See Fig. 7)(6) One turn the LEAD gear to direction of the arrow 1 and fully

    shift to direction of the arrow 2. (See Fig.10)

    Fig.7

    Fig.8

    Fig.9

    Fig.10

    PlateEFixing part k

    Traverse mechanism assembly

    F

    Part m

    Part nPickup

    Feed gear Shaft LEAD spring

    Pickup Connector Card wire

    Short land part p

    Traverse mechanism assembly

    LEAD gear 

    Pickup

    1

    2

    http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-

  • 8/17/2019 Jvc Ux g305 Service manual

    18/381-18 (No.MB665)

    3.2.7 Removing the feed motor

    (See Fig.11 to 13)

    • Remove the traverse mechanism.

    (1) Remove the yellow wire from solder part q of the CD servo

    board from upper side of traverse mechanism. (See Fig.11)

    (2) Remove the white wire from solder part r  of the CD servo

    board. (See Fig.11)

    (3) Remove the one screw G attaching the plate. (See Fig.12)

    (4) Disengage the plate from fixing part s and take out the

    plate. (See Fig.12)

    (5) Remove the feed gear and take out the feed motor. (See

    Fig13)

    Reference:

    When attaching the feed motor, the wire has to through the

    part t of the traverse mechanism assembly. (See Fig.13)

    Fig.11

    Fig.12

    Fig.13

    Traverse mechanism assemblyCD servo board

    Yellow wire

    White wire

    Soldered part q

    Soldered part r 

    PlateGFixing part s

    Traverse mechanism assembly

    Traverse mechanism assembly

    Feed gear Feed motor   part t

    http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-

  • 8/17/2019 Jvc Ux g305 Service manual

    19/38(No.MB665)1-

    3.2.8 Removing the switch board

    (See Fig.14)

    (1) Disconnect the card wire from CN1  of the switch board

    from bottom side of CD mechanism assembly.

    (2) Remove the wire from solder part u of the switch board.

    (3) Remove the one screw H attaching the switch board to CD

    mechanism assembly.

    (4) Lift up the switch board by pushing the hook v of CD mech-

    anism assembly and take out it from part w.

    Reference:• After attach the switch board to CD mechanism assembly,

    wire hooked to part x.

    • Hook u  of the CD mechanism assembly, it have to bond

    lock.

    3.2.9 Removing the motor

    (See Fig.14 and 15)

    • Remove the tray assembly.

    (1) Remove the wire from solder part u of the switch board

    from bottom side of CD mechanism assembly.

    (2) Remove the belt of motor pulley from upper side of CD

    mechanism assembly. (See Fig.15)

    Caution:

    Belt should not apply grease.

    (3) Remove the two screws J attaching the motor to CD mech-

    anism assembly and take out the motor from bottom side

    of CD mechanism assembly. (See Fig.15)

    Reference:

     After motor attached to CD mechanism assembly, wire should

    hook to part w. (See Fog.14)

    Fig.14

    Fig.15

    Switch board Wire

    Solderpart u

    Hook v

    Part w

    CN1

    CD mechanism assemblyH Part x

    CD mechanism assembly

    J Belt

    Motor pulley

    http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-

  • 8/17/2019 Jvc Ux g305 Service manual

    20/381-20 (No.MB665)

    SECTION 4

    ADJUSTMENT

    4.1 Outline

    4.2 How to go CD TEST MODE

    [STOP] + [CD] + AC in

    4.3 Function specification

    4.4 C1 error history

    When 8 key is pressed, syscon send C1 err display command (0x9C 0x01 0x00).

    If syscon receive C1 error display status (0xAA 0x01 0x00 ** **), it displays C1 error.

    Syscon convert 2byte hex data to decimal data (00000-65635).

    4.5 Special mode

    [POWER] + [SET] + [REPEAT]: COLD SET

    [POWER] + [SET] + [S.TURBO]: FL DISPLAY turn on all segment

    [POWER] + [SET] + [BASS/TRE]:Micon version display

      press again and again Syscon version

      CD version  USB version

      Destination

      Model name

    CD TEST MODE

    C1 error display

    Function

    CD TEST MODE

    C1 error display

    C1 error displayReturn to CD TEST MODE

    Remocon

    Remocon After receive dataRemocon

    >>|

    CANCEL

    Key Operation FL display

    C D T E S T T

    I N I T I A L

    E r  * * * * *C D T E S T T

  • 8/17/2019 Jvc Ux g305 Service manual

    21/38(No.MB665)1-2

    SECTION 5

    TROUBLESHOOTING

    This service manual does not describe TROUBLESHOOTING.

  • 8/17/2019 Jvc Ux g305 Service manual

    22/38

    (No.MB665)

    V

    Printed in Jap

    Victor Company of Japan, LimitedAudio/Video Systems Division 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan

  • 8/17/2019 Jvc Ux g305 Service manual

    23/38

    SCHEMATIC DIAGRAMS

    UX-G300B,UX-G300E,UX-G300EN,UX-G300EV

    UX-G303E,UX-G303EN,UX-G303EV,UX-G305E

    UX-G305EN,UX-G305EV,UX-G300A,UX-G300US

    UX-G300UF,UX-G300UT,UX-G300UW,UX-G300UG

    UX-G300UN,UX-G305UT

    Contents

    Block diagrams

    Standard schematic diagrams

    Printed circuit boards

    2-1

    2-2

    2-10 to 12

    DVD-ROM No.SML2008Q2

    MICRO COMPONENT SYSTEM

    No.MB665SCH

  • 8/17/2019 Jvc Ux g305 Service manual

    24/38

    In regard with component parts appearing on the silk-screen printed side (parts side) of the PWB diagrams, the

    parts that are printed over with black such as the resistor ( ), diode ( ) and ICP ( ) or identified by the " "

    mark nearby are critical for safety.

  • 8/17/2019 Jvc Ux g305 Service manual

    25/38

    Block diagram

     C N1 

     0 1 

     C N

     8  0  3 

     J   8  0  0  0 

    CN802

    W800

     C N

     8  0 1 

     C N2 

     0  5 

     C N7 

     0 1 

     C N 3  6 2 

     C N

     3  0  6 

     J   6  0  0 1 

     C N

     6  0  5 

     C N

     5 2 

     0 

     C N7 

     0 4 

     C N

     9 

     0 4 

    IC201

    CD

    DRIVER

    IC801

    USBCONTROL

    IC802,Q801

    5V REG.

    IC360

    MOTOR

    DRIVER

    IC301

    Q301

    CPU/CD RF

    &

    SERVO/DSP

    IC600

    Q6001

    POWER AMP.

    D6402,D6601LEVEL DETECTION

    / AHB CONTROL

    S7100 to S7105

    KEY MATRIX

    IC720

    LCD

    DRIVER

    FL720

    LCD DISPLAY

    IC700

    REMOCON

    D7000

    STANDBY LED

    JS960ENCODER

    CD servo control section

    System control section

    AUX/HP/USB Jack

    LCD,Key switch,LED & Remocon

    Key switch & Encoder 

    Primary & Regulator section

    Power amp section

    VF1, VF2

    VT1, VT2

    LD, MD

    FM+/-

    F+/-

    T+/-

    D+/-

    HPSW

    HPL/RHPL/R

     AUXINL/R

     AUXINL/R

    USBD+/-

    TRAY+/-

    TOPEN

    TCLOSE

    OPENSW, CLOSESW

    OPENSW

    CLOSESW

    TOPEN

    TCLOSE

    UCS

    SCS

    SCLK

    U2SDT

    S2UDT

    CPURST

    LRMUTE

    TU_CE

    TU_CK

    S2TDT

    T2SDT

    TUAMSW

    RDSCLK

    RDSDATA

    TUL/R

    FLDATA

    FLLATCH

    FLCLK

    FLDATA

    FLLATCH

    FLCLK

    STBYLED

    REMOCON

    KEY1

    KEY1

    REMOCON

    STBYLED

    JOG+/-

    GR1 to 10

    SG1 to 18

    SW601

    REST SW

    PSW

    TRVP, SPOUT

    TRP, FOP

    MUTE

    UCS, SCS, UCLK

    U2SDT, S2UDT

    NRST, LRMUTE

    UCS, SCS, SCLK

    U2SDT, S2UDT

    CPURST, LRMUTE

    CDL, CDR CDL, CDR

    CDL, CDR

    SCL

    SDA

    USB_IN

    USB_SW

    (FDVD5V)

     J   8  3  0  0 

     J   8 1 

     0  0 

    S9500 to S9504

    KEY MATRIX

    KEY2KEY2

    JOG+/-

    X30116.9344MHz

    IC302EEPROM

    X80112MHz

    USB

    HEAD

    PHONE

     AUX IN

     AHB_CTL

    LIN

    RIN

    PROT, DC_DET

    MUTE, STBY

     AMBEATCUT

    LEVEL_DET

    PROT

    DC_DET

    MUTE

    STBY

     AMBEATCUT

     AHB_CTL

    LEVEL_DET

    VOLCLK

    VOLDATA

    VOLLATCH

     C N

     3  6 4 

     C N

     3 1 1 Connection section

     C N

     3  6  0 

     C N1 

     C N

     3 1 2 

     C N

     3  0 4 

     C N

     3 

     0  3 

    TO

    SPEAKER

    L+/-

    R+/-

    TUNER

    PACK

    Q3801

    RIPPLE FILTER

    IC260

    US6V REG.IC211

    Q2100,Q2103

    SW10V REG.

    Q2125 to Q2127

    Q2303,Q2131,Q2132

    FL SW

     A9VTU9V

    Q2304

    US3.3V REG.

    US3.3V

    US3.3V

    +18V

    SW6V,USB6VS10V

    IC300

    MICON

    X3001

    8MHz

    Q3802

    SAFETY

    REG.

    RST

    Q3301

    RESET

    USB5V

    USB5V

    F+/-

    USB6V

    USB6V

    USB6V

    S1

    TRAY SWITCH

    LOADING MOTOR

    Loader section

    M

    -VDISPF+/-

    -VDISP

    D2151

     C N2 

     0  0 

    CN201 CN203

    FW301

    T2000

    POWER

    TRANS.

    IC201,IC210, Q2160,Q2161SW REG.CONTROL

     AC IN

    D2001

    DIODE

    BRIDGE

    +18V+18V

    +18V

    +18V

    +18V

    S10V

    D2131

    -VDISP

    -VDISP

    D2121

    F+/-

    F+/-

    -VDISPF+/-

    CN302

    CN204 W2000

    CN640

    Front panel section

    M

    M

    FEED

    MOTOR

    SPINDLE

    MOTOR

    CD

    traverse

    & pickup

    mechanismIC304

    3.3V

    REG.

    D4V3.3V

    SW6V

    S10V

    +18V

    HPSW

    SM+/-

    USBNPP

    STREQ, STIN, STCLK

    CS, USBTX, USBRX

    USB_IN, USB_NRST

    PDOWN

    SAFETY1

    ECO

    FREQCTL

    FSW10V

    FDVD5V

    ECO

    PDOWN

    FREQCTL

    FSW10V

    IC500

    VOLUME

    IC502

    Q5301

    Q5351

    Q5401

     AHB

     AHB   OUTL

    OUTR

    HPMUTE

    IC503,IC504,IC505

    HEADPHONE AMP./MUTE

    LOUT

    ROUT

  • 8/17/2019 Jvc Ux g305 Service manual

    26/38

    2-2

    Standard schematic diagrams

    0V

    0V3.1V

    15.3V

    0V

    0.44V

    2.48V

    15.2V

    271.4V

    3.3V

    2.7V

    OF

     ALLINDUCTANCE VALUES ARE IN H(m=mH)

    /RATED VOLTAGE (V).

     ALLE.CAPACITORS ARE SHOWN IN THE FORM

     ALLCAPACITANCE VALUES ARE IN F(P=pF).

    IN OHM( ). ALLRESISTANCE VALUES ARE

    CAPACITANCE( F )

     ALLDIODES ARE MA111-X

    VOLTMETER

    CARBON FILM RESISTOR

    MYLAR CAPACITOR.

    UNLESS OTHERWISE SPECIFIED.

    NOTES

    OR ALLCAPACITORS ARE

    1/4W

    CERAMIC CAPACITOR

    VOLTAGES ARE DC-MEASURED WITH ADIGITAL

    3. NI=NO INSERT

    2.

    4. "0"= SHORTBY PATTERN

    1.

    CD STOPMODE

     ALLRESISTORS ARE

    OR OSCILLOSCOPE WITHOUTINPUTSIGNAL.

    5%

    CONDITION ---

    OR 0.063W 5% THICK FILM CHIPRESISTOR

    0V

    0V

    0.6V

    18.5V

    0V

    3.3V

    0V

    0V

    0V

    6V

    6V

    0V

    3.1V

    0V

    3.3V

    9.8V

    6V

    18.5V

    6V

    0V

    0V

    0V

    -29.3V

    -27.1V

    -24.2V

    18.5V

    0V

    0.9V

    1.2V   0.6V

    0.5V

    2.7V

    11.5V   1   8 .   5

       V

       9 .   9

       V

    0V8 .3 V 6 .0 V

    -24.2V

    3.1V

    -24.1V-24.7V

    -24.8V

    -24.7V

    -24.3V-24.1V

    0V

    3.1V3.1V

    15.7V

    3.9V

    3.3V

    -29.6V

       3 .   1

       V

    -29.6V

    -29.2V

      -   2   9 .   6

       V

    -29.1V

    3.1V

       3 .   3

       V

       0   V

       1   1 .   1

       V

    0V

       0   V

       0   V

       1   3   V

    2.5V

    277V

    0V

    15.3V

    0V

    1.43V

    0.58V

    RT1P441C-X

    R2

    RT1N141C-X

    47K

    10K

    10K

    KRA104S-X

    47K

    10K

    R1

    R1

    RT1P141C-X

    R2

    R2

    KRA102S-X

    10K

    KRC104S-X

    R1

    47K

    R1

    KRC102S-X

    R2

    RT1N441C-X47K

    & UX-GP5)

    (UX-G500V, UX-GP7V)

    US UN UG UX UH UJ UTUW

    J/C

    B E EN EV EE UF UPUYA UB

    220/400V

    220/200V

    100/400V

    *  FOR C2008:

    *

    (UX-G300/303/305

    (UX-G500V, UX-GP7V)

    FOR DVD MODEL ONLY

    SW10V

    CD + USB DVD + IPODCD + IPODDVD + USB REC

    K IA 78 06 AP I N INIKIA7806API

    NINI   BD9305AFVM-WBD9305AFVM-WIC212

    *

    NINIQGF1040C1-05QGF1040C1-07CN205

    UX-GP7VUX-GP5/GP9DUX-G500VUX-G300/G800D

    IC260

    SW6V

    FOR DVD MODELONLY*

    FOR CD MODELONLY

    *US6V

    6V

    10V

    *

    QQS0422-001T2000

    GVA10150-A1

    US3.3V

    17V

    ECO

    -VDISP

    F-

    F+

    FL SW

    !

    AC

    !

    EP201QNZ0136-001Z

    2

    EP200

    QNZ0136-001Z

    !

    !

    !

    !

    !

    !

    !!

    !

    !

    !

    !

       !

    !

    !

    ! !

    !!

    sure to use the specified one.

    When replacing those parts make

    Parts are safety assurance parts.!

    NIB2000

    0R2107

    NIR2117

       R   2   0   0   9

       N   I

       C   2   1   0   7

       N   I

       C   2   1   1   7

       N   I

       C   2   1   5   7

       N   I   C

       2   1   5   6

       0 .   1

       /   5   0

    KRC104S-XQ2127

       1   5   0

       R   2   1   2   5

       M   A   8   0   3   3  -   X

       D   2   1   2   5

       1   5   0

       R   2   1   2   6

       M   A   1   1   1  -   X

       D   2   1   2   6

       C   2   1   2   5

       0 .   0

       1   /   5   0

    KTC3265/Y/-XQ2126

    KTA1505/G/-XQ2125

       N   I

       B   2   0   1   2

       M   A   8   0   6   2   /   M   /  -   X

       D   2   0   1   2

       K   R   A   1   0   2   S  -   X

       Q   2   1   6   1

       K   R   C   1   0   2   S  -   X

       Q   2   1   6   0

       M   A   8   0   4   7   /   M   /  -   X

       D   2   1   6   0

       N   I

       B   2   1   1   8

       N   I

       B   2   1   0   8

    MA8075/M/-XD2011

       M   A   8   0   5   6   /   M   /  -   X

       D   2   0   1   0

       0 .   2

       2   /   1   W

       R   2   1   0   8

       R   2   1   1   8

       0 .   2

       2   /   1   W

    QAD0141-4R0TH201   VCC   5

    GND   6

    COMP   7

    FB   8

    GD   4

    ENB   3

    CT   2

    RT   1

    BD9305AFVM-WIC211

       1   K

       R   2   1   0   6

       C   2   1   0   6

       4   7   0   P

       1   8   K

       R   2   1   0   0

       5 .   1

       K

       R   2   1   0   2

       1   0   0   /   1   6

       C   2   1   0   5

       2   0   K

       R   2   1   0   1

       C   2   1   0   3

       2   0   0   P   /   5   0

    MA22D23-X

    D2103

       C   2   1   0   2

       0 .   0

       1

       N   I

       C   2   1   0   4

       K   R   C   1   0   2   S  -   X

       Q   2   1   0   0

    RSR025P03-XQ2103

    47

    QQL28AK-470L2103

       8   2   K

       R   2   1   0   4

       1   2   K

       R   2   1   0   5

    B2124

       M   A   8   0   4   3   /   M   /  -   X

       D   2   3   0   2   R

       2   3   0   1

       2 .   4

       K

       M   A   8   0   3   9  -   X

       D   2   3   0   1

    KTC3203/OY/-TQ2304

       1   N   4   0   0   3   S  -   T   5

       D   2   6   0   0

       1   N   4   0   0   3   S  -   T   5

       D   2   6   0   1

    FR 1/4W

    R2300

    100

       O   U   T

    3

       G   N   D

    2

       I   N

    1

    !

    KIA7806APIIC260

       1   0   0   /   1   6

       C   2   6   0   1

       4   7   /   2   5

       C   2   6   0   0

    B2110

    NICP210   CP NI

    D2500

       C   2   1   1   0

       0 .   1

       /   5   0 C

       2   1   1   3

       2   2   0   P   /   5   0

       C   2   1   1   2

       0 .   0

       1MA22D23-XD2113

       C   2   1   1   6

       4   7   0   P

       1   K

       R   2   1   1   6

       1   8   K

       R   2   1   1   5

       6   8   K

       R   2   1   1   4

    RSR025P03-X

    Q2113

       2   0   K

       R   2   1   1   1

       5 .   1

       K

       R   2   1   1   2

       2   0   K

       R   2   1   1   0

       K   R   C   1   0   2   S  -   X

       Q   2   1   1   0

    VCC   5

    GND   6

    COMP   7

    FB   8

    GD   4

    ENB   3

    CT   2

    RT   1

    BD9305AFVM-WIC212

       0 .   1

       /   5   0

       C   2   1   1   4

    47QQL28AK-470

    L2113

       1   0   0   /   1   6

       C   2   1   1   5

       4   7   /   2   5

       C   2   1   1   1

       4   7   /   2   5

       C   2   1   0   1

       C   2   1   0   0

       0 .   1

       /   5   0

    2

    KRA104S-XQ2303

    3

    NIB2132

       C   2   0   1   9

       N   I

       D   2   1   3   4

       M   A   8   0   2   4  -   X

    C2121470/10

    R2170   1KR2015

    3.9K

    4 1

    23

    !PC202

    PC123Y22FZ

    B2151

    NIB2121

    NIB2001

       3   4

       1 2

       Q   Q   R   1   7   9   0  -   0

       0   1

       L   F   2   0   2

       1   0   /   5   0

       C   2   3   0   1

    NI

    K2151

    T2.5AH/250VQMFZ059-2R5-E

    F2001

    ICP-N10-TCP211

    CP

    FR 1/4W10

    R2131

       M   T   Z   J   1   1   B  -   T

       2

       D   2   0   0   7

       R   G   1   C  -   L

       F   A   1

       D   2   0   0   3

       C   2   0   1   8

       4   7   0   P   /   5   0

    NI

    C2151

    NI

    R2151

       B   2   0   0   4

       R   2   0   0   4

       N   I

       C   2   0   1   1

       N   I

       C   2   1   3   3

       0 .   0

       2   2   /   5   0

       2 .   2

       K

       R   2   1   2   1

    NIR2124

       R   2   1   3   4

       2   2   k

       R   2   1   3   3

       3 .   3

       K

    KTA1504/YG/-X

    Q2131

       D   2   1   3   2

       N   I

       C   2   1   3   2

       N   I

       D   2   1   3   5

       M   A   8   3   0   0   /   M   /  -   X

    KRC104S-XQ2132

       C   2   1   5   5

       3   3   0   /   2   5

    QQLZ043-120L2151

       C   2   1   5   2

       N   I

       C   2   1   3   1

       3   9   /   5   0

    D2131

    400V/1A

    FR104S-A175-T5

    D2121

    400V/1A

       R   2   1   6   5

       1   0   K

    C2160

    0.1/50

    R2162

    10K

       R   2   1   6   3

       6   2   K

       R   2   1   6   4

       2 .   2

       K

       R   2   1   6   1

       2 .   2

       K

       R   2   1   6   0

       1 .   5

       K

       C   2   0   1   2

       1   0   /   5   0

    C20200.0022/AC250V

    FMX-G22S

    D2151

    200V/10A

    C21532200/25

    MA8220/M/-XD2008

    R200812K

       D   2   0   0   5

       F   R   1   0   4   S  -   A

       1   7   5  -   T

       5

       4   0   0   V   /   1   A

       C   2   0   1   7

       0 .   0

       0   1   /   5   0

       R   2   0   0   7

       1 .   8

       K

       A   L   0   1   Z  -   T

       4

       D   2   0   0   6

       4   0   0   V   /   1   A

    FR104S-A175-T5

    D2004400V/1A

    R200668

    4 1

    23

    PC201PC123Y22FZ

    !

       R   2   0   0   5

       1   5   0   K   /   3   W

     AL01Z-T4D2009

       R   2   0   1   3

       1   K

       C   2   0   1   6

       0 .   0

       1   /   5   0

       C   2   0   1   5

       1   /   5   0

       R   2   0   1   2

       2   2   0

       R   2   0   1   1

       0 .   3

       9   /   1   W

       R   2   0   1   0

       0 .   3

       9   /   1   W

       C   2   0   1   3

       2   2   0   P   /   5   0

       Q   C   Z   0   1   3   6  -   2   2   1   Z

       C   2   0   1   4

       2   2   0   P   /   1   K

    OCP   7

    FB   6

    SS   5

    VCC   4

    S   3

    NC   2

    D   1

    ! IC201

    STR-W6765N

       R   2   0   0   3

       2   2   0   K   /   3   W

       R   2   0   0   2

       2   2   0   K   /   3   W

       4   3

       2 1

    LF201

    QQR1790-001

       C   2   0   0   9

       3   3   0   P   /   1   0   0   0

       C   2   0   0   1

       0 .   1

       5   /   A   C   2   7   5   V

       C   2   0   0   3

       1   0   0  p

       /   A   C   2   5   0   V

       R   2   0   0   1

       3 .   3

       M

       C   2   0   0   6

       N   I

       C   2   0   0   4

       1   0   0  p

       /   A   C   2   5   0   V

       N   I

       V   A   2   0   1

       C   2   0   0   7

       0 .   0

       6   8   /   A   C   2   7   5   V

       C   2   0   0   2

       N   I

       1   0   0   /   4   0   0

       C   2   0   0   8   C

       2   0   1   0

       0 .   0

       0   4   7   /   1   0   0   0

       C   2   0   0   5

       N   I

       R   G   1   C  -   L

       F   A   1

       D   2   0   0   2

    1342

    D2001KBJ4J

    NC7

    USB_SW6

    DGND5

    DGND4

    DGND3

    USB6V2

    USB6V1

    QGF1040C1-07CN205

    12

    13

    11

    10

    14

    15

    16

    9

    6

    7

    1

    2

    4

    1

    2

    3

    4 Q G D2 50 4C1 -0 4ZCN203

    PDOWN6

    FDVD5V5

    ECO4

    FSW10V3

    FREQCTL2

    US3.3V1

    QGB2510K2-06CN204

    DVD5V1

    +18V2

    S10V3

    SW6V4

     AGND5

    NIQGD2504C1-05ZCN202

    MGND1

    DGND2

    -VDISP3

    F-4

    F+5   QGD2504C1-05ZCN201

    +18V1

    PGND2

       Q   J   K   0   1   5  -   0

       2   2   2   0   2  -   E

       W   2   0   0   0

       3

       2 1

       K   I   A   4   3   1   A  -   T

       I   C   2   1   0

       2

       1

    CN200QGA7901C1-02

    Regulator section

  • 8/17/2019 Jvc Ux g305 Service manual

    27/38

  • 8/17/2019 Jvc Ux g305 Service manual

    28/38

    2-4

    Audio amp section

       1 .   5

       V

       0   V

       0   V

       1 .   5

       V   0   V

       0   V

       0   V

       1 .   5

       V   0   V

       0   V

       0   V

       3 .   3

       V

    /RATEDVOLTAGE(V) .

    INOHM( ). ALLRESISTANCE VALUES ARE

    CAPACITANCE( F)

     ALLDIODES ARE MA111-X

     ALLCAPACITANCE VALUES ARE IN F(P=pF).

     ALLE.CAPACITORS ARE SHOWN IN THE FORM

     ALLINDUCTANCE VALUES ARE IN H(m=mH).

    OF1/4W

    CERAMIC CAPACITOR

    VOLTAGES ARE DC-MEASURED WITH ADIGITA L

     ALLRESISTORS ARE 5%

    CONDITION ---

    1.

    UNLESS OTHERWISE SPECIFIED.

    OR

    C AR BO N F IL M R ES IS TO R

    MYLAR CAPACITOR.

    NOTES

    OR 0.063W 5% THICK FILM CHIPRESISTOR

    OR OSCILLOSCOPE WITHOUTINPUT SIGNAL.

     ALLCAPACITORS ARE

    CD STOPMODE

    VOLTMETER

    2.

    3. NI=NO INSERT

    4."0"=SHORTBYPATTERN

    FOR DVD MODELONLY

    3.3V

    3.3V

    0V

    0V

    0V

    3.3V

    0V

    0V

    0V

    0V

    0V

    0.6V 0.6V

    0V

    0V0V

    0V

    0V

       0 .   8

       V

       8

     .   9   V

       4 .   4

       V

       4 .   4

       V

       4 .   4

       V   0   V

       8 .   8

       V

       4 .   4

       V

       4 .   4

       V

       4 .   4

       V

       8 .   8

       V

       4 .   6

       V

       4 .   5

       V

       3 .   9

       V

       4 .   6

       V

       4 .   5

       V

       3 .   9

       V

       0   V

       3 .   9

       V

       3 .   9

       V

       3 .   9

       V

       3 .   9

       V

       3 .   9

       V

       3 .   9

       V

       3 .   9

       V

       3 .   9

       V

       3 .   9

       V

       3 .   9

       V

       3 .   9

       V

       3 .   9

       V

       3 .   9

       V

       8 .   8

       V

       8 .   8

       V   0   V

       3 .   9

       V

       3 .   9

       V

       3 .   9

       V

       3 .   9

       V

       3 .   9

       V

       3 .   9

       V

       3 .   9

       V

       3 .   9

       V

       3 .   9

       V

       3 .   9

       V

       3 .   9

       V

       3 .   9

       V

       0   V

       0   V

       3 .   3

       V

       3 .   3

       V

    GVA10151-A1(2/3)

    DABR

    DABL

    DABR

       D   A   B   L

    DABL

    DABR

    LR MUTE

     AHB

    VOLUME IC

    SMUTE

    S.W.OUT

    HEADPHONE AMP

     AHB

     AUXINL

    SMUTE

    ROUT

    LOUT

    SWMUTE

    HPL

    HPR

       H   P   M   U   T   E

    DC_DET

    PROT

    FR

    FL

    SWOUTL

    LRMUTE

    TUR

    FRIPODR

     AUXINR

       T   U   L

       F   L

       I   P   O   D   L

       A   U   X   I   N   L

       R   O   U   T

       L   O   U   T

    CDR

    CDL

    SWOUTR

    SWOUTL

    CDL

    CDR

    SWOUTR

    FREQ_BEAT

    LEVEL_DET

     AHB_CTL

    STBY

    MUTE

    ROUT

    LOUT

    FREQ_BEAT

    LEVEL_DET

    STBY

    MUTE

    DC_DET

    PROT

     AHB_CTL

    SMUTE

    SWMUTE

    IPODL

    IPODR

    TUL

    TUR

     AUXINR

    VOLLATCH

    HPMUTE

    VOLCLK

    VOLDATA  AHB

    OUTL

    OUTR

    OUTL

    VOLDATA

    VOLCLK

    OUTR

    VOLLATCH

    LRMUTE

    US3.3V

    FREQ_BEAT

    LEVEL_DET

    DC_DET

    PROT

    STBY

    MUTE

    SMUTE

    SWMUTE

     AGND

    HPL

    HPR

     AGND

     A9V

    CDL

    CDR

     AUXINR

    IPODL

    TUR

     AUXINL

    IPODR

    TUL

    HPMUTE

     AHB

    VOLLATCH

    VOLDATA

    VOLCLK

    K5701B/W

    K5702NI

    6 5 4

    321

       N   I

       I   C   5   0   9

    6 5 4

    321

       N   I

       I   C   5   0   6

    123

    4 5 6

       R   T   3   X   9   9   M  -   X

       I   C   5   0   5

    6 5 4

    321

       R   T   3   Y   9   7   M  -   X

       I   C   5   0   3

    6 5 4

    321

       N   I

       I   C   5   0   8

      +

      -

      +

      -

    +

    -

    +

    -

       C   5   5   0   6

       4   7   /   1   6

    3

    B4128

    B4127

    B4126

    B4125

       2   4   K

       R   5   1   0   4

    43KR5105

       4   3   K

       R   5   2   0   5

    24KR5204

    C5509

    0.1/16

       C   5   3   1   3

       N   I

       C   5   7   0   2

       N   I

    C530610/63

    C540610/63

       R   5   4   1   2

       N   I

       R   5   3   1   2

       N   I

    R5313

    0

    R5413

    0

       R   5   9   0   2

       N   I

    R5803

    NI

       R   5   8   0   2

       N   I

    R5801680

       C   5   8   0   2

       N   I

       C   5   9   0   2

       N   I

    C5803

    NI

    C5801NI

    K5801B/W

    R5901

    680

    C5901

    NI

    R5751NI

    Q5701NI

    R5701NI

       C   5   7   0

       3

       N

       I

    C5706

    NI

    NID5702

    C5704NI

    NID5701

       C   5   7   0   5

       N   I

    R5704NIR5703

    NI

       R   5   7   0   5

       N   I

       N   I

       C   5   0   0   2

    NIC5601

    NIC5501

       N   I

       C   5   2   0   4

       A   U   X   I   N   R

    32

       I   P   O   D   R

    31

       C   D   R

    30

       T   U   R

    29

       N   C

    28

       R   S   E   L   O

    27

       R   V   R   I   N

    26

       R   T   R   E

    25

       R   B   A   S   S   1

    24

       R   B   A   S   S   2

    23

       R   S   U   R   R

    22

       R   O   U   T

    21

       V   R   E   F

    20

       V   +   A   N   A

    19

       V   +   D   I   G   I

    18

       V   O   L   L   A   T   C   H

    17

       V   O   L   C   L   K

    16

       V   O   L   D   A   T   A

    15

       G   N   D

    14

       G   N   D

    13

       L   O   U   T

    12

       L   S   U   R   R

    11

       L   B   A   S   S   2

    10

       L   B   A   S   S   1

    9

       L   T   R   E

    8

       L   V   R   I   N

    7

       L   S   E   L   O

    6

       N   C

    5

       T   U   L

    4

       C   D   L

    3

       I   P   O   D   L

    2

       A   U   X   I   N   L

    1

    NJU7391V-X

    IC500

    4 3 2 1

    5 6 7 8

       N   J   M   4   5   6   5   E  -   X

       I   C   5   0   4

    R550511K

       R   5   5   0   2

       1   0   K

    R550622

    C55022.2/50

       R   5   6   0   2

       1   0   K

       C   5   5   0   7

       2   2   /   5   0

       R   5   5   0   7

       2 .   2

       K

    C5604100P

    C5603150P

    R560511K

    C5505100/16

    R560356K

    R550356K

    C56022.2/50

    R56011.2K

    R56046.8K

       C   5   5   0   8

       3   3   0   P

       R   5   6   0   7

       2 .   2

       K

    R55046.8K

    C5504100P

    R550810K

    C5605100/16

       R   5   5   0   9

       1   0   K

       D   5   5   0   1

       N   I

    R55011.2K

    R560622

       C   5   6   0   8

       3   3   0   P

    C5503150P

       1   8   K

       R   5   1   0   1

    9.1kR5102

       4 .   7

       /   5   0

       C   5   1   0   5

       4 .   7

       /   5   0

       C   5   1   0   7

    3300PC5106

    9.1k

    R5202

       1   8

       k

       R   5   2   0   1

       4 .   7

       /   5   0

       C   5   2   0   5

       4 .   7

       /   5   0

       C   5   2   0   7

    3300PC5206

       1   0   0   /   1   6

       C   5   0   0   1

       1   0   /   6   3

       C   5   2   1   2

       1   0   /   5   0

       C   5   1   0   1

       4   7   0   0   P

       C   5   2   0   8

       0 .   2

       2

       C   5   2   1   0

       4   7   0   0   P

       C   5   1   0   8   1

       0   /   5   0

       C   5   1   0   3

    4700PC5211

       1   0   /   6   3

       C   5   1   1   2

       1   0   /   5   0

       C   5   2   0   1

       0 .   0

       4   7   C

       5   1   0   9

       4 .   7

       /   5   0

       C   5   0   0   3

    4700PC5111

       1   0   /   6   3

       C   5   2   0   2

       5 .   6

       k

       R   5   1   0   3

       N   I

       C   5   1   0   4

       1   0   /   5   0

       C   5   2   0   3

       5 .   6

       k

       R   5

       2   0   3

       0 .   0

       4   7

       C   5   2   0   9

       0 .   2

       2   C   5   1   1   0   1

       0   /   6   3

       C   5   1   0   2

    MA111-X

    D5351

    R5301

    1.8K

    R54101K

    R5401

    1.8K

       R   5   3   5   5

       4   7   K

       R   5   3   0   7

       4   7   K

    R5409470K

       R   5   3   0   5

       2   0   K

    R5310   1K

       R   5   4   0   3

       1 .   8

       K

    R5311

    10K

       R   5   3   0   3

       1 .   8

       K

       C   5   3   5   2

       1   0   0   /   1   6   R

       5   3   5   2

       2   7   0

    R53062K

       R   5   4   0   8

       2 .   4

       K

    R541110K

       C   5

       3   5   3

       N   I

       C   5   4   0   2

       0

     .   5   6

       C   5   3   5   4

       1   /   5   0

       C   5   3   0   5

       1   0   /   6   3

       R   5   3   0   8

       2 .   4

       K

       R   5   4   0   5

       2   0   K

       R   5   3   5   3

       1   0   0   K

    4 3 2 1

    5 6 7 8

       N   J   M   4   5   6   5   E  -   X

       I   C   5   0   2

       C   5   3   5   5

       2   2   0   /   1   0

    R5309   470K

       R   5   3   5   7

       4 .   7

       K

       R   5   3   0   4

       1   K

       K   T   C   3   8   7   5   /   Y

       G   /  -   X

       Q   5   3   5   1

       C   5   4   0   5

       1   0   /   6   3C5403

    0.068

       C   5   3   0   4

       0 .   0

       6   8

    R5351

    51K

    R5354

    1.2K

       C   5   4   0   4

       0 .   0

       6   8

       C   5   3   0   2

       0 .   5

       6

       R   5   4   0   2

       N   I

       K   T   C   3   8   7   5   /   Y   G   /  -   X

       Q   5   3   0   1

    R54062K

    R5356

    4.7K

       R   5   4   0   7

       4   7   K

       C   5   3   5   1

       1   0   /   5   0

    C5303

    0.068

       R   5   4   0   4

       1   K

    KTC3875/YG/-X

    Q5401

       R   5   3   0   2

       N   I   R

       3

       R   3

       R   3

       R   3

    R2

    R2

    R2

    R2

    R1

    R1

    R1

    R1

    Q3

    Q3

    Q3

    Q3

    Q2

    Q2

    Q2

    Q2

    Q1

    Q1

    Q1

    Q1

     AMBEATCUT 1

    LEVEL_DET 2

     AHB_CTL 3

    NC 4

    STBY 5

    MUTE 6

    R IN 7

     AGND 8

    LIN 9

    DC_DET 10

    PROT 11QGF1208C1-11CN520

     A9V 1

    FAOUTR 2

     AGND 3

    FAOUTL 4

    LRMUTE 5

    QGF1036C2-05

    CN510

    1

    2

    QNN0780-001

    J5001

  • 8/17/2019 Jvc Ux g305 Service manual

    29/38

    Digital amp section

    *

    NIINSERTC6008

    INSERT

    INSERT

    INSERT

    NI

    NI

    NI

    NIINSERT

    C6217

    C6117

    C6207

    UTONLY OTHERS

    C6107

    **

    **

    *

    *

    QUY158-050Y

    FOR L6301/L6302:

    OTHER VERSION

    UT/J ONLYQQR0797-002

    *

    0V

    18.5V

    0V

    0V

    2.3V

    0V

    9.3V

    9.3V

    9.2V

    9.2V

       0   V

       2 .   5

       V 0   V

       0   V

       3 .   3

       V 0   V

       0   V

       1   8

     .   5   V

       1   8

     .   5   V

       1   8

     .   5   V   0

       V

       2 .   1

       V

       9 .   3

       V

       9 .   3

       V

       2 .   1

       V 0   V

       1   8

     .   5   V

       1   8

     .   5   V

       1   8

     .   5   V   0

       V   0   V

       0   V

       2 .   4

       V 0   V

       1   8

     .   5   V

       9 .   8

       V

       0   V

       0   V

       0   V

       0   V

       0   V

       0   V

       0   V

       1   8

     .   5   V

       1   8

     .   5   V

       1   8

     .   5   V

       2 .   2

       V

       9 .   3

       V

       9 .   3

       V

       0   V

       2 .   2

       V

       0   V

       1   8

     .   5   V

       1   8

     .   5   V

       1   8

     .   5   V

       0   V

       0   V

       3 .   3

       V

       3 .   3

       V

       2 .   5

       V

       2 .   5

       V

       4 .   9

       V

    0V

    0V

    0V

    0V

    3.3V

    0V

    0V

    0V

    0V

    3.3V

    3.3V

    KRC110S-X

    R2

    R1

    RT1N430C-X 4.7K

    R2

    NI

    R1

    36dB NINI

    32dB OROXNI

    R6003

    OROX

    R6004

    20dB

    NI26dB

    OROXOROX

    GVA10152-A1

    4."0"= SHORTBYPATTERN

    DETECTIONLEVEL

    L+

       S   P   K   O   U   T

    R+

    R+

    R-

    R-

    L+

    L-

    L-

    1/4 W

    CD STOPMODE

    VOLTAGES ARE DC-MEASURED WITH ADIGITA L

    NI STANDS FOR NOTINSERTED PARTS.

    CERAMIC CAPACITOR

    3.

    CARBON FILM RESISTOR ALLRESISTORS ARE

    IN OHM( ) .

    OR OSCILLOSCOPE WITHOUTINPUT SIGNAL.

     ALLRESISTANCE VALUES ARE

    UNLESS OTHERWISE SPECIFIED.

    VOLTMETER

    CAPACITANCE( F)

    5% ALL INDUCTANCE VALUES ARE IN H(m=mH) .

     ALLCAPACITORS ARE SHOWN IN THE FORM

    /RATED VOLTAGE (V).

    1.

    2.

    OR

    MYLAR CAPACITOR.

    OF

    CONDITION ---

     ALLCAPACITANCE VALUES ARE IN F(P=pF).

     ALLCAPACITORS ARE

    NIPP601

    NIW6000

    E409182-001SM

    W6001

    NIEP601

       N   I

       C   6   0   0   9

    B6312

    0

    B6311

    0

    B6303

    0B6304

    0

    B6313

    0B6314

    0

    B6302

    0

    B6301

    0

       R   6   6   0   4

       8   2   0

    C6612

    NI

    C6613

    0.1/50

       R   6   2   1   6

       N   I

       R   6   2   1   5

       N   I

       R   6   1   1   6

       N   I

       R   6   1   1   5

       N   I

       C   6   1   1   8

       N   I

       C   6   2   1   8

       N   I

       R   6   1   1   4

       N   I

       R   6   2   1   4

       N   I

    C61140.47/16

    C61040.47/16

    C62140.47/16

    C62040.47/16

       K   R   C   1   1   0   S  -   X

       Q   6   0   0   1

    10/63

    C6052

    10/63

    C6152

       N   I

       C   6   1   5   1

       N   I

       C   6   0   5   1

       1   0   K

       R   6   1   5   2

       1   0   K

       R   6   0   5   2

    8.2K

    R6151

    8.2K

    R6051

       A   G   N   D

    1

       R   I   N

    2

       M   U   T   E   L

    3

       C   L   K

    4

       S   T   B   Y

    5

       V   S   A   1

    6

       V   S   A   1

    7

       O   U   T   A   1

    8

       O   U   T   A   1

    9

       V   D   A   1

    10

       S   U   B

    11

       S   P   I   A   1

    12

       H   B   A   1

    13

       H   B   B   1

    14

       S   P   I   B   1

    15

       S   U   B

    16

       V   D   B   1

    17

       O   U   T   B   1

    18

       O   U   T   B   1

    19

       V   S   B   1

    20

       V   S   B   1

    21

       N   C

    22

       R   O   S   C

    23

       R   O   C

    24

       V   D

    25

       D   V   D   D

    26

       A   G   N   D

    27

       C   P   R   O

    28

       G   A   I   N   1

    29

       G   A   I   N   2

    30

       N   C

    31

       V   S   B   2

    32

       V   S   B   2

    33

       O   U   T   B   2

    34

       O   U   T   B   2

    35

       V   D   B   2

    36

       S   U   B

    37

       S   P   I   B   2

    38

       H   B   B   2

    39

       H   B   A   2

    40

       S   P   I   A   2

    41

       S   U   B

    42

       V   D   A   2

    43

       O   U   T   A   2

    44

       O   U   T   A   2

    45

       V   S   A   2

    46

       V   S   A   2

    47

       P   R   O   T

    48

       O   F   F   S   E

       T_

       D   E   T

    49

       V   R   E   F

    50

       L   I   N

    51

       A   V   C   C

    52

       R   2   A   1   5   1   0   8   S   P  -   X

       I   C   6   0   0

       R   6   0   0   4

       0

       R   6   0   0   3

       N   I

    470/25C6001

    C6008

       R   6   0   0   7

       1   8   0   K

    NI

    K6004

       R   6   0   0   6

       3   9   K

       R   6   0   0   5

       1   8   K

       C   6   0   0   6

       4   7   /   2   5

       0 .   1

       /   5   0

       C   6   0   0   7

    NIK6000

       C   6   0   0   2

       4   7   /   2   5

       C   6   0   0   3

       4   7   /   2   5

       0 .   1

       /   1   6

       C   6   0   0   4

       C   6   0   0   5

       0 .   3

       3   /   1   6

    C6210

    10/25

    C6110

    10/25

    R6111

    330K

    C6101

    0.47/25

       L   6   1   1   1

       1   2

    C6105NI

       L   6   1   0   1

       1   2

    C6115NI

       R   6   1   1   3

       1   0   0   K

    C6112

    0.47/16

    R6101

    330K

    C6103

    1/16

    C6102

    0.47/16

    C6111

    0.47/25

    C6113

    1/16

       R   6   1   0   3

       1   0   0   K

    R6112NI

    R6102NI

    C6205NI

      R6202NI

      C6215

    NI

    R6212

    NI

    C6213

    1/16

       R   6   2   1   3

       1   0   0   K

    R6211

    330K

       L   6   2   1   1

       1   2

    C62110.47/25

    C6212

    0.47/16

       R   6   2   0   3

       1   0   0   K

       3 2

       1   M   C   2   8   3   8  -   X

       D   6   4   0   2

      -

       R   6   6   0   2

       4 .   7

       K

       3 2

       1

       D   6   6   0   1

       M   C   2   8   3   8  -   X

      -

       C   6   6   1   1

       1   /   5   0

       R   6   6   1   2

       4 .   7

       K

       C   6   6   0   1

       1   /   5   0

       M   A   8   0   3   3  -   X

       D   6   6   0   2

       C   6   6   0   2

       2 .   2

       /   5   0

       R   6   6   0   3

       5   1   K

    R6201

    330K

       C   6   4   1   2

       N   I

       C   6   1   1   6

       N   I

       C   6   4   0   2

       N   I

       C   6   1   0   9

       N   I

       C   6   2   0   7

       C   6   2   0   8

       N   I

       C   6   2   1   7

       R   6   5   1   1

       1   2   K

       L   6   2   0   1

       1   2

       R   6   4   1   1

       N   I

       C   6   4   1   1

       N   I

       4 3

       1   6

    L6302

    C6202

    0.47/16

       C   6   1   1   7

       R   6   5   0   2

       N   I

       R   6   4   0   2

       1   2   K

       3 2

       1

       D   6   4   0   3

       N   I  -

    C6201

    0.47/25

       C   6   1   0   6

       N   I

       C   6   2   1   6

       N   I

       C   6   5   1   2

       N   I

       C   6   1   0   8

       N   I

    C6203

    1/16   C   6   4   0   1

       1   0   /   6   3

       R   6   5   1   2

       1   2   K

       C   6   5   0   1

       N   I

       C   6   5   1   1

       1   0   /   6   3

       C   6   1   0   7

       3 2

       1

       D   6   4   0   1

       N   I  -

       R   6   4   0   1

       1   2   K

       C   6   2   0   6

       N   I

       C   6   5   0   2

       N   I

       R   6   4   1   2

       N   I

       R   6   5   0   1

       N   I

       4 3

       1   6

    L6301

       C   6   2   0   9

       N   I

     AMBEATCUT 11

    LEVEL_DET 10

     AHB_CTL 9

     AGND1 8

    STBY 7

    MUTE 6RIN 5

     AGND1 4

    LIN 3

    DC_DET 2

    PROT 1

    QGF1208C1-11CN605

    +18V 1

    PGND 2

    QGA3901C1-02

    CN640

    2

    1

    34

    5

       J   6   0   0   1

       Q   N   B   0   3   0   3  -   0

       0   1

  • 8/17/2019 Jvc Ux g305 Service manual

    30/38

  • 8/17/2019 Jvc Ux g305 Service manual

    31/38

    Connection section Loader section

    OF

     ALLINDUCTANCE VALUES ARE IN H(m=mH)

    /RATEDVOLTAGE(V).

     ALLE.CAPACITORS ARE SHOWN IN THE FORM

     ALLCAPACITANCE VALUES ARE IN F(P=pF).

    IN OHM( ). ALLRESISTANCE VALUES ARE

    CAPACITANCE( F)

     ALLDIODES ARE MA111- X

    VOLTMETER

    CARBON FILM RESISTOR

    MYLAR CAPACITOR.

    UNLESS OTHERWISE SPECIFIED.

    NOTES

    OR ALLCAPACITORS ARE

    1/4W

    CERAMIC CAPACITOR

    VOLTAGES ARE DC-MEASURED WITH ADIGITAL

    3. NI=NO INSERT

    2.

    4. "0"= SHORTBY PATTERN

    1.

    CD STOPMODE

     ALLRESISTORS ARE

    OR OSCILLOSCOPE WITHOUTINPUTSIGNAL.

    5%

    CONDITION---

    OR 0.063W 5% THICK FILM CHIPRESISTOR

    1.6V

    0V

    1.6V

    0V

    0V

    3.3V

    3.3V

    0V

    3.3V

    0V

    3.3V

    0V

    3.3V

    3.3V

    3.3V

    0V

    0V

    9.8V

    9.8V

    6V

    6V

    0V

    0V

    0V

    0V

       0 .   6

       V

       0 .   8

       V

       9 .   8

       V

       9 .   8

       V   0   V

       0   V

       0 .   8

       V

       0 .   8

       V

       0 .   6

       V   0   V

    0V

    0V

    0V

    0.6V

    0.6V

    3.3V

    3.3V

    3.3V

    3.3V

    3.3V

    3.3V

    9.1V

    9.1V

    0V

    0V

    0V

    4.5V

    4.5V

    0V

    0V

    1.6V

    0V

    1.6V

    3.3V

    (UX-G300/303/305&UX-GP5)

    **FORCDMODELONLY

    (UX-G500V,UX-GP7V)

    **FORDVDMODELONLY

       F   M   U  -   M   J   4  -   2   M  -   U   X  -   G   P   5

       (   U   X  -   G

       5   0   0   V   &   U   C  -   G

       P   7   V   )

       (   U   X  -   G

       5   0   0   V   &   U   C  -   G

       P   7   V   )

       (   U   X  -   G

       3   0   0   /   3   0   3   /   3   0   5   &   U   C  -   G

       P   5   )

    GVA10150-A6

       F   M   U  -   M   B   6  -   7   1   M

       F   M

       U  -   M   J   4  -   1   M  -   U   X  -   G   3   0   0   /   3   0   3   /   3   0   5

       F   O   R   C   D   M   O   D   E   L   O   N   L   Y

       F   O   R   D   V   D   M   O   D   E

       L   O   N   L   Y

    FAN DRIVERMOTOR DRIVER

    CDL

    CDR

    LRMUTE

    CLOSESW

    TCLOSE

    OPENSW

    TOPEN

    SCS

    S2UDT

    FANON

    U2SDT

    FANDET

    SCLK

    CPURST

    UCS

    LRMUTE

    SCS

    DVDPWR

    FANDET

    FANON

    SCLK

    UCS

    CLOSESW

    TOPEN

    R_OUT

    B_OUT

    G_OUT

    Y_OUT

    CPURST

    U2SDT

    S2UDT

    TCLOSE

    OPENSW

    TX

    C_OUT

    CDR

    CDL

    LRMUTE

    CPURST

    UCS

    SCS

    SCLK

    S2UDT

    U2SDT

    R_OUT

    B_OUT

    G_OUT

    Y_OUT

    C_OUT

    TX

    DVDPWR

    U2SDT

    S2UDT

    SCLK

    SCS

    UCS

    CPURST

    CLOSESW

    OPENSW

    TOPEN

    TCLOSE

       F   A   N   O   N

       F   A   N   D   E   T

    1N4003S-T5D3658

       2   A   0   2  -   M

       D   3   6   5   5

    B3064

    K3652   NI

    NIL3650

    NIQ3651

    NI

    R3650

    NIQ3650

    NI

    R3651

    K 365 4 N I

    C3657NI

    C3659NI

    K3655NI

    B3060

    B3063

    NIC3660

    1N4003S-T5

    D3657

    C3656NI

    C3658100/16

    L36511N4003S-T5

    B3061

    1N4003S-T5

    D3656

    B3065

    K3653  NI

    C3653100/16

       C   3   6   5   5

       1   0   0   /   1   6

    K3651NI

       1   N   4   0   0   3   S  -   T   5

       D   3   6   5   4

       0 .   1

       /   1   6   C

       3   6   5   1

    B3067

    0.1/16C3650

       1   N   4   0   0   3   S  -   T   5

       D   3   6   5   3

       O   U   T   2

    10

       P   2

    9

       V   C   C   2

    8

       V   C   C   1

    7

       I   N   2

    6

       I   N   1

    5

       V   Z

    4

       P   1

    3

       O   U   T   1

    2

       G   N   D

    1

    LB1641IC360

    B3062

    B3066

    K3650NI

    MA8047/M/-XD3650

       C   3   6   5   4

       1   0   0   /   1   6

    C3652100/16

    CDL1

     AGND2

    CDR3

    DGND4

    DGND5

    LRMUTE6

    SCS7

    NC8

    S2UDT9

    FANON10

    U2SDT11

    FANDET12

    SCLK13

    CPURST14

    UCS15

    MGND16

    MGND17

    M9V18

    M9V19

    DVD5V20

    DVD5V21

    CLOSESW22

    TCLOSE23

    OPENSW24

    TOPEN25

    QGF1040C1-25CN364

    LRMUTE31

    SCS30

    DVDPWR29

    S2UDT28

    FANON27

    U2SDT26

    FANDET25

    SCLK24

    CPURST23

    UCS22

    MGND21

    MGND20

    M9V19

    M9V18

    DVD5V17

    DVD5V16

    CLOSESW15

    TCLOSE14

    OPENSW13

    TOPEN12

    TX11

    DGND10

    ROUT9

    DGND8

    BOUT7

    DGND6

    GOUT5

    DGND4

    YOUT3

    DGND2

    COUT1

    QGF1040C1-31

    CN363

    CDRESET 19

    UCS 18

    SCS 17

    UCLK 16

    S2UDT 15

    U2SDT 14

    M9V 13

    M9V 12

    MGND 11

    MGND 10

    NC   9

    D4V   8

    D4V   7

    DGND   6

    DGND   5

    CDR   4

     AGND   3

    CDL   2

    LRMUTE   1

    QGF1040F1-19CN362

       M   G   N   D

       3

       F   A   N  -   S

       T

       2

       F   A   N

       1

    NI

    CN365

    CPURST 25

    UCS 24

    SCS 23

    SCLK 22

    S2UDT 21

    U2SDT 20

    DVDPWR 19

    M9V 18

    M5V 17

    RX 16

    MGND 15

    MGND 14

    TX(SPDIF) 13

    D2V 12

    D2V 11

    D4V 10

    C_OUT 9

    S 5V 8

    Y_OUT 7

    VGND 6

    Y/G_OUT 5

    VGND 4

    B-Y/B_OUT 3

    VGND 2

    R-Y/R_OUT 1

    CN361QGF1040F1-25

    CLOSESW 5

    OPENSW 4

    MGND 3

    TRAY- 2

    TRAY+ 1

       Q   G   F   1   0   4   0   F   1  -   0

       5

       C   N   3   6   0

    MOTORLOADING

    LVA10530-01A

    CLOSEDET

    OPENDET

    DGND

    LM-

    LM+

    QAR0197-001

    - +

    5

    4

    3

    2

    1

    CN1

    QGF1016F3-05

    S1

    QSW1074-001

  • 8/17/2019 Jvc Ux g305 Service manual

    32/38

  • 8/17/2019 Jvc Ux g305 Service manual

    33/38

  • 8/17/2019 Jvc Ux g305 Service manual

    34/38

    2-10

    Power board

    Printed circuit boardsLead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)

    Lead free solder used in the board (material : Sn-Cu, melting point : 230 Centigrade)

    P 1 B 

    1  8 V 

    1  8 V 

    + 1 

     8 V 

    T 1 B 

    1 2  1  6  9 

    N C 

     C N2 

     0  5 

    7 1 

    P  GND

    W2 

     0  0 

    1  4 

     S  9 V 

     S W

     6 V 

    A  GND

     C N2 

     0  3 

    A  GND

     S W

     6 V 

     S  9 V 

     C N2 

     0 2 

    DV D

     5 V 

     5 1 

    F  S W1 

     0 V 

    F RE 

     Q C T L 

     S E 

     C  ONDA RY 

    7 4 1 

     O UT 

    I   N

     GND

    P RI   MA RY 

     U S  3 . 3 V 

    E  C  O

    P D

     OWN

    F DV D

     5 V 

    GVA10150-A1

    11   1

     U S B 

     6 V 

     U S B 

     6 V 

    D GND

    D GND

    D GND

     U S B 

     S W

     C N2 

     0 1 

    F + 

    F -

    -V DI    S P 

    D GND-V 

     GND

    M GND

    1    5 

    D2125

    R2126

    D2 1 2 

     6 

    R2300

     Q2 

     3  0 4 

    CN202

    CN201

    R2 1 1 2 

     C 2 1 2 

     5 

    Q2126

    R2125

    C2116

    R2 1 1 

     6 

    R2 1 1 

     5 

    R2 1 1 4 

    C2115

    D2113

     Q2 1 1 

     3 

    Q2110

    R2 1 1 

     0 

     C 2 1 1 4 

    IC212

    R2118

     C 2 1 1 

     0 

    C2113

    L2113

    R2 1 1 1 

    C2111

    Q2127

     C 2 1 1 2 

    R2 1 

     0 2 

     C N2 

     0 4 

    B 2 

     0 1 2 

    C2106

    R2 1 

     0  6 

    R2 1 

     0  5 

    Q2125

    D2 

     0 1 2 

    R2 1 

     0 4 

    C2105

    K2151

    D2 1 

     0  3 

    CN203

     Q2 1 

     0  3 

    W2000

    Q2100

    R2 1 

     0  0 

     C 2 1 

     0 4 

    R2170

    R2015

    I    C 2 1 1 

    P  C 2 

     0 2 

    R2108

     Q2 1 

     6 1    B 

    2 1 

     3 2 

     C 2 1 

     0  0 

    D2500

     Q2 1 

     6  0 

    H S 2 

     0 1 

    D2 

     3  0 2 

    E P 2 

     0 1 

    E P 2 

     0  0 

    C2019

    F  C 2 

     0 2 

    F  C 2 

     0 1 

    D2601

    C2103

    D2600

    L2103

    R2302

    L F 2 

     0 2 

     C 2 

     3  0 1 

    D2014

    D2013

    CP211R2131

    D2007

    D2003

    R2 

     3  0 1 

    D2 

     3  0 1 

     C 2 

     0 1 

     8 

    R2 1 

     0 1 

    C2101

    C2601

    C2600

     C 2 1 

     5 1 

    R2 1 

     5 1 

    D2