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SERVICE MANUAL
KD-G351E, KD-G351EX, KD-G351EY, KD-G351EU,
2008
SERVICE MANUAL
MA377
10
KD-G357EE, KD-G440J, KD-G441E, KD-G441EX,
KD-G441EY, KD-G441EU, KD-G447EE, KD-G644UI,
KD-G645U, KD-G645UN, KD-G645UT, KD-G645UH,
KD-G646U, KD-G646UN, KD-G646UT, KD-G646UH,
KD-G648UF, KD-G352EY, KD-S45J, KD-G645SUI,
KD-G442E, KD-G442EX, KD-G442EY, KD-G499UR,
COPYRIGHT © 2008 Victor Company of Japan, Limited
Lead 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)
1
PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
3
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13
4
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-29
5
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-30
CD RECEIVER
KD-G357EE2, KD-G645TUH
except
KD-G441
KD-G351
KD-G447
KD-G357
KD-S45
KD-G645
KD-G442
TABLE OF CONTENTS
COPYRIGHT © 2008 Victor Company of Japan, Limited
KD-G441
KD-G440
KD-G351
KD-S45
KD-G447
KD-G499
KD-G357
KD-G352
KD-G442
No.MA377
2008/10

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   Summary of Contents for JVC KD-G351E

  • Page 1: Table Of Contents

    SERVICE MANUAL CD RECEIVER KD-G351E, KD-G351EX, KD-G351EY, KD-G351EU, MA377<Rev.004> 2008 SERVICE MANUAL KD-G357EE, KD-G440J, KD-G441E, KD-G441EX, KD-G441EY, KD-G441EU, KD-G447EE, KD-G644UI, KD-G645U, KD-G645UN, KD-G645UT, KD-G645UH, KD-G646U, KD-G646UN, KD-G646UT, KD-G646UH, KD-G648UF, KD-G352EY, KD-S45J, KD-G645SUI, KD-G442E, KD-G442EX, KD-G442EY, KD-G499UR, KD-G357EE2, KD-G645TUH except KD-G441...

  • Page 2

    SPECIFICATION KD-G442/KD-G441/KD-G351/KD-G352 AUDIO AMPLIFIER SECTION Maximum Power Output Front/Rear 50 W per channel 19 W per channel into 4 Ω 40 Hz to 20 000 Hz at no Continuous Power Output (RMS) Front/Rear more than 0.8% total harmonic distortion 4 Ω (4 Ω to 8 Ω allowance) Load Impedance Tone Control Range Bass...

  • Page 3

    KD-G447/KD-G357 AUDIO AMPLIFIER SECTION Maximum Power Output Front/Rear 50 W per channel 19 W per channel into 4 Ω 40 Hz to 20 000 Hz at no Continuous Power Output (RMS) Front/Rear more than 0.8% total harmonic distortion 4 Ω (4 Ω to 8 Ω allowance) Load Impedance Tone Control Range Bass...

  • Page 4

    KD-G440/KD-S45/KD-G499 AUDIO AMPLIFIER SECTION 20 W RMS × 4 Channels at 4 Ω and < or = 1% THD+N Power Output 80 dBA (reference: 1 W into 4 Ω) Signal-to-Noise Ratio 4 Ω (4 Ω to 8 Ω allowance) Load Impedance Tone Control Range Bass/Mid-range/Treble ±12 dB at 60 Hz/1 kHz/10 kHz...

  • Page 5

    KD-G644 AUDIO AMPLIFIER SECTION Maximum Power Output Front/Rear 50 W per channel 19 W per channel into 4 Ω 40 Hz to 20 000 Hz at no Continuous Power Output (RMS) Front/Rear more than 0.8% total harmonic distortion. 4 Ω (4 Ω to 8 Ω allowance) Load Impedance Tone Control Range Bass...

  • Page 6

    KD-G646/KD-G645 AUDIO AMPLIFIER SECTION Maximum Power Output Front/Rear 50 W per channel 19 W per channel into 4 Ω 40 Hz to 20 000 Hz at no Continuous Power Output (RMS) Front/Rear more than 0.8% total harmonic distortion. 4 Ω (4 Ω to 8 Ω allowance) Load Impedance Tone Control Range Bass...

  • Page 7

    KD-G648 AUDIO AMPLIFIER SECTION Maximum Power Output Front/Rear 50 W per channel 19 W per channel into 4 Ω 40 Hz to 20 000 Hz at no Continuous Power Output (RMS) Front/Rear more than 0.8% total harmonic distortion. 4 Ω (4 Ω to 8 Ω allowance) Load Impedance Tone Control Range Bass...

  • Page 8

    KD-G645S AUDIO AMPLIFIER SECTION Maximum Power Output Front/Rear 50 W per channel 19 W per channel into 4 Ω 40 Hz to 20 000 Hz at no Continuous Power Output (RMS) Front/Rear more than 0.8% total harmonic distortion. 4 Ω (4 Ω to 8 Ω allowance) Load Impedance Tone Control Range Bass...

  • Page 9: Precaution

    SECTION 1 PRECAUTION Safety Precautions Burrs formed during molding may be left over on some parts of the chassis. Therefore, pay attention to such burrs in the case of preforming repair of this system. Please use enough caution not to see the beam directly or touch it in case of an adjustment or operation check.

  • Page 10

    Preventing static electricity Electrostatic discharge (ESD), which occurs when static electricity stored in the body, fabric, etc. is discharged, can destroy the laser diode in the traverse unit (optical pickup). Take care to prevent this when performing repairs. 1.2.1 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.

  • Page 11

    Important for laser products 1.CLASS 1 LASER PRODUCT 5.CAUTION : If safety switches malfunction, the laser is able to function. 2.CAUTION : (For U.S.A.) Visible and/or invisible class II laser radiation 6.CAUTION : Use of controls, adjustments or performance of when open.

  • Page 12: Specific Service Instructions

    SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS. 1-12 (No.MA377<Rev.004>)

  • Page 13: Disassembly

    SECTION 3 DISASSEMBLY Main body (used figure is KD-G440) 3.1.1 Removing the FRONT CHASSIS assembly (See Fig.3-1) (1) Disengage the four hooks a engaged the both side of the FRONT CHASSIS assembly. hook Fig.3-1 3.1.2 Removing the HEAT SINK (See Fig.3-2, 3-3) (1) Remove the three screws A and the two screws B attaching the HEAT SINK.

  • Page 14

    3.1.3 Removing the BOTTOM COVER (See Fig.3-4) (1) Remove the one screw E and the one screw F attaching the BOTTOM COVER. (2) Slide the BOTTOM COVER to backward. Fig.3-4 3.1.4 Removing the MAIN BOARD assembly (See Fig.3-5, 3-6) (1) Remove the two screws G and the two screws H attaching the MAIN BOARD assembly.

  • Page 15

    3.1.5 Removing the CD MECHANISM assembly (See Fig.3-7) (1) Remove the three screws J attaching the CD MECHANISM assembly. Fig.3-7 3.1.6 Removing the SWITCH BOARD assembly (See Fig.3-8) (1) Remove the VOLUME KNOB. (2) Remove the four screws K attaching the REAR COVER. hook (3) Disengage the nine hooks b engaged the REAR COVER.

  • Page 16: No.ma377)1

    CD mechanism assembly 3.2.1 Removing the top cover (See Figs.1 and 2) (1) From the both side of the CD mechanism assembly, remove the four screws A attaching the top cover. (See Fig.1.) (2) Lift the front side of the top cover and move the top cover backward to release the two joints a.

  • Page 17

    3.2.2 Removing the push switch (See Figs.3) (1) From the bottom side of the CD mechanism assembly, remove Pickup the screw B attaching the push switch. Wires (2) Take out the push switch from the CD mechanism assembly. Push switch Reference: Remove the wires from soldered sections b of the push switch as required.

  • Page 18

    3.2.4 Removing the chassis unit (See Figs.5 and 6) • Remove the top cover and base board. Chassis unit (1) From the top side of the CD mechanism assembly, remove the front suspension springs and rear suspension springs Front suspension spring Front suspension spring attaching the chassis unit to the frame.

  • Page 19

    3.2.5 Removing the clamper assembly (See Figs.7 and 8) • Remove the top cover. Chassis unit Move the clamper assembly in the direction of the arrow to release the joints f from the chassis unit. Clamper assembly Fig.7 Clamper assembly Chassis unit Fig.8 (No.MA377<Rev.004>)1-19...

  • Page 20

    3.2.6 Removing the loading/feed motor assembly (See Fig.9) • Remove the top cover, base board and chassis unit. Loading/feed motor assembly From the bottom side of the chassis unit, remove the screw D and take out the loading/feed motor assembly in the direction of the arrow.

  • Page 21

    3.2.7 Removing the pickup (See Figs.10 to 12) • Remove the top cover, base board and chassis unit. Pu. shaft holder A (1) From the bottom side of the chassis unit, remove the screw Pickup E attaching the pu. shaft holder B and pull the pu. shaft out of the pu.

  • Page 22

    3.2.9 Removing the trigger arm (See Fig.14) • Remove the top cover, base board, chassis unit and clamper Select arm R assembly. Chassis unit (1) From the top side of the chassis unit, remove the trigger Select lock arm arm spring from the sections (n, p). (2) From the bottom side of the chassis unit, release the claws q of the trigger arm base in the direction of the arrow to remove them from the sections r of the chassis unit to the other side.

  • Page 23

    3.2.11 Removing the mode switch (See Fig.16) • Remove the top cover, base board, chassis unit, clamper assembly, Top plate assembly Mode switch trigger arm and top plate assembly. (1) From the top side of the top plate assembly, remove the Link gear spring link gear spring from the sections x of the link gear L and link gear R.

  • Page 24

    3.2.12 Removing the select arm R and select lock arm (See Figs.17 and 18) • Remove the top cover, base board, chassis unit, clamper assembly, trigger arm and top plate assembly. Select arm R (1) From the top side of the top plate assembly, remove the link gear spring from the sections ad of the link gear L and Link gear spring link gear R.

  • Page 25

    3.2.13 Removing the loading roller assembly (See Figs.19 to 21) • Remove the top cover, base board, chassis unit, clamper assembly Cam plate R and top plate assembly. (1) From the left side of the chassis unit, remove the screw J attaching the lock arm assembly.

  • Page 26

    3.2.14 Removing the loading gear 1, loading gear 2, loading gear 3 and feed gear 1 (See Fig.22) • Remove the top cover, base board and chassis unit. (1) From the bottom side of the chassis unit, pull out the loading Loading gear 6 gear 1.

  • Page 27

    3.2.18 Removing the cam plate R (See Fig.25) • Remove the top cover, base board, chassis unit, clamper assembly, Chassis unit top plate assembly and loading roller assembly. From the right side of the chassis unit, remove the cam plate R Trigger rack spring from the slots ax of the chassis unit.

  • Page 28

    3.2.20 Removing the spindle motor assembly (See Figs.27 and 28) • Remove the top cover, base board, chassis unit and clamper assembly. Turn table Chassis unit (1) From the top side of the chassis unit, turn the turn table from side to side and remove the two screws M attaching the spindle motor assembly through the hole of the turn table.

  • Page 29: Adjustment

    Dummy load (4) Tracking offset meter Exclusive dummy load should be used for AM,and FM. (5) Test Disc JVC :CTS-1000 For FM dummy load, there is a loss of 6dB between SSG output (6) Extension cable for check and antenna input.

  • Page 30: Troubleshooting

    SECTION 5 TROUBLESHOOTING 16PIN CORD DIAGRAM (for KD-G351, KD-G357, KD-G441, KD-G447, KD-G352, KD-G442) Black Green Violet Gray Blue BL/WH White Yellow WH/BK Brown GN/BK VI/BK GY/BK BL/WH RD 7 7 RD 16 YL YL 4 8 BK 5 BL/WH 13 BR 3 GN 11 GN/BK 2 VI...

  • Page 31

    16 PIN CORD DIAGRAM (for KD-G440,KD-S45) Black Green Violet Gray Blue White Yellow BL/WH WH/BK GN/BK VI/BK GY/BK BL/WH GN/BK VI/BK WH/BK GY/BK (No.MA377<Rev.004>)1-31...

  • Page 32

    16 PIN CORD DIAGRAM (for KD-G644, KD-G645, KD-G646) Black Green Violet Gray Blue White Yellow Orange OR/WH BL/WH WH/BK GN/BK VI/BK GY/BK OR / WH GN / BK VI / BK WH / BK GY / BK BL / WH 1-32 (No.MA377<Rev.004>)

  • Page 33

    16 PIN CORD DIAGRAM (for KD-G648) Black Green OR/WH Violet Gray BL/WH Blue White Yellow WH/BK Orange Brown GN/BK VI/BK GY/BK OR/WH RD2 BK YL 2 OR/WH GN/BK VI/BK WH/BK GY/BK BL/WH VI/BK GY/BK WH/BK GN/BK (No.MA377<Rev.004>)1-33...

  • Page 34

    16 PIN CORD DIAGRAM (for KD-G645SUI) Gray Blue WH/BK Violet GY/BK GN/BK Green Black WH/BK VI/BK White Yellow GN/BK VI/BK GY/BK 16 YL 12 WH/BK 11 GN/BK 10 VI/BK GY/BK 1-34 (No.MA377<Rev.004>)

  • Page 35

    16 PIN CORD DIAGRAM (for KD-G645SUI) GN/BK VI/BK WH/BK GN/BK VI/BK GY/BK WH/BK Gray GY/BK Black Violet Green Yellow White 16 YL 12 WH/BK GN/BK 10 VI/BK GY/BK (No.MA377<Rev.004>)1-35...

  • Page 36

    16 PIN CORD DIAGRAM (for KD-G499) Green Black Violet Blue Gray BL/WH White Yellow WH/BK GN/BK VI/BK GY/BK BL/WH 7 RD RD 7 16 YL MEMORY YL 4 8 BK REMOTE 5 BL/WH 3 GN 11 GN/BK 2 VI 10 VI/BK 4 WH 12 WH/BK 1 GY...

  • Page 37

    16 PIN CORD DIAGRAM (for KD-G645TUH) OR/WH GY/BK WH/BK BL/WH WH/BK OR/WH GN/BK VI/BK GY/BK VI/BK GY Gray Violet Black Green OR Orange GN/BK White YL Yellow Blue (No.MA377<Rev.004>)1-37...

  • Page 38

    Victor Company of Japan, Limited Mobile Entertainment Division 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan (No.MA377<Rev.004>) Printed in Japan...

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