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JVC KD-G700 Service Manual

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SERVICE MANUAL
1
2004
MA050
1
PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
3
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
4
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-26
5
TROUBLE SHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-27
COPYRIGHT © 2004 VICTOR COMPANY OF JAPAN, LIMITED
CD RECEIVER
KD-G700
ATT
SOUND
U
R
SOURCE
F
D
VOL
VOL

TABLE OF CONTENTS

Area suffix
J -------------- Northern America
No.MA050
2004/1

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  • Page 1: Table Of Contents

    SERVICE MANUAL CD RECEIVER MA050 2004 KD-G700 Area suffix J -------------- Northern America SOUND SOURCE TABLE OF CONTENTS PRECAUTION............... . . 1-3 SPECIFIC SERVICE INSTRUCTIONS .
  • Page 2 1.5 V/20 kΩ load Line-Out Level/Impedance KD-AR800 5.0 V/20 kΩ load (full scale) KD-G800 4.0 V/20 kΩ load (full scale) KD-G700 2.5 V/20 kΩ load (full scale) Output Impedance 1 kΩ Subwoofer-Out Level/Impedance KD-AR800/KD-G800 2.0 V/20 kΩ load (full scale)

  • Page 3: 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 4 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 CD players.

  • Page 5: Specific Service Instructions

    SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS. (No.MA050)1-5...

  • Page 6: Disassembly

    SECTION 3 DISASSEMBLY Main body 3.1.1 Removing the front panel assembly Front panel assembly (See Fig.1) (1) Push the detach button in the lower right part of the front panel assembly. (2) Remove the front panel assembly. Detach button Fig.1 3.1.2 Removing the heat sink (See Fig.2) (1) From the left side of the main body, remove the two screws...
  • Page 7 3.1.3 Removing the top chassis assembly (See Figs.3 to 6) • Prior to performing the following procedures, remove the heat Bottom chassis assembly sink. Reference: Remove the front panel assembly as required. (1) From the bottom side of the main body, remove the two screws D attaching the top chassis assembly to the bottom chassis assembly.
  • Page 8 3.1.4 Removing the front chassis (See Figs.7 and 8) • Prior to performing the following procedure, remove the front Top chassis assembly panel assembly, heat sink and top chassis assembly. (1) From the both sides of the top chassis assembly, remove the two screws F attaching the front chassis.
  • Page 9 3.1.6 Removing the main board (See Figs.10 and 11) • Prior to performing the following procedures, remove the front Rear bracket panel assembly, heat sink and top chassis assembly. (1) From the rear side of the bottom chassis assembly, remove the two screws H attaching the rear bracket to the bottom chassis assembly.
  • Page 10 3.1.8 Removing the front door mechanism assembly (See Fig.13.) • Prior to performing the following procedures, remove the front Front door mechanism assembly Bottom chassis panel assembly, heat sink, top chassis assembly and main board. (1) From the top side of the bottom chassis assembly, remove the screw M attaching the FPC guide to the bottom chassis.
  • Page 11 CD Mechanism Assembly 3.2.1 Removing the top cover (See Figs.1 and 2) (1) Remove the two screws A on the both side of the body. (2) Lift the front side of the top cover and move the top cover backward to release the two joints a. Top cover Joints a Fig.1...
  • Page 12 3.2.2 Removing the connector board Wires (See Figs.3 to 5) CAUTION: Before disconnecting the flexible wire from the pickup, solder the short-circuit point on the pickup. No observance of this in- struction may cause damage of the pickup. (1) Remove the screw B fixing the connector board. (2) Solder the short-circuit point on the connector board.
  • Page 13 3.2.3 Removing the DET switch (See Figs.6 and 7) (1) Extend the two tabs c of the feed sw. holder and pull out the switch. (2) Unsolder the DET switch wire if necessary. DET switch Connector board Pickup Fig.6 Tab c DET switch DET switch wire Tab c...
  • Page 14 3.2.4 Removing the chassis unit (See Figs.8 and 9) • Prior to performing the following procedure, remove the top Chassis unit cover and connector board. Suspension spring (L) Suspension spring (R) (1) Remove the two suspension springs (L) and (R) attaching the chassis unit to the frame.
  • Page 15 3.2.5 Removing the clamper assembly (See Figs.10 and 11) • Prior to performing the following procedure, remove the top cover. (1) Remove the clamper arm spring. Clamper arm spring (2) Move the clamper assembly in the direction of the arrow to release the two joints d.
  • Page 16 3.2.6 Removing the loading / feed motor assembly (See Figs.12 and 13) • Prior to performing the following procedure, remove the top cover, connector board and chassis unit. (1) Remove the screw C and move the loading / feed motor assembly in the direction of the arrow to remove it from the chassis rivet assembly.
  • Page 17 3.2.7 Removing the pickup unit Pickup unit (See Figs.14 to 18) • Prior to performing the following procedure, remove the top cover, connector board and chassis unit. (1) Remove the screw D and pull out the pu. shaft holder from Part e the pu.
  • Page 18 3.2.9 Removing the trigger arm Joint k (See Figs.19 and 20) • Prior to performing the following procedure, remove the top cover, connector board and clamper unit. (1) Turn the trigger arm in the direction of the arrow to release Trigger arm the joint k and pull out upward.
  • Page 19 3.2.11 Removing the mode sw. / select lock arm Link plate Joint t (See Figs.22 and 23) Mode sw. • Prior to performing the following procedure, remove the top plate assembly. Select lock arm (1) Bring up the mode sw. to release from the link plate (joint t) and turn in the direction of the arrow to release the joint u.
  • Page 20 3.2.12 Reassembling the mode sw. / select lock arm Select lock arm spring (See Figs.24 to 26) Hook w REFERENCE: Reverse the above removing procedure. Joint v (1) Reattach the select lock arm spring to the top plate and set Joint v the shorter end of the select lock arm spring to the hook w on the top plate.
  • Page 21 3.2.13 Removing the select arm R / link plate Link plate Joint r Joint c' (See Figs.27 and 28) Select arm R Joint b' • Prior to performing the following procedure, remove the top plate assembly. (1) Bring up the select arm R to release from the link plate (joint a') and turn as shown in the figure to release the two Joint b' joints b' and joint c'.
  • Page 22 3.2.15 Removing the loading roller assembly Loading roller assembly (See Figs.31 to 33) • Prior to performing the following procedure, remove the Roller guide clamper assembly and top plate assembly. spring (1) Push inward the loading roller assembly on the gear side and detach it upward from the slot of the joint g' of the lock arm rivet assembly.
  • Page 23 3.2.16 Removing the loading gear 5, 6 and 7 Loading gear bracket (See Figs.35 and 36) • Prior to performing the following procedure, remove the top Loading gear 6 cover, chassis unit, pickup unit and top plate assembly. (1) Remove the screw K attaching the loading gear bracket. The loading gear 6 and 7 come off the loading gear brack- (2) Pull out the loading gear 5.
  • Page 24 3.2.17 Removing the gears Joint p' (See Figs.37 to 40) • Prior to performing the following procedure, remove the top Change plate cover, chassis unit, top plate assembly and pickup unit. rivet assembly • Pull out the loading gear 3. (See Fig.35.) (1) Pull out the feed gear.
  • Page 25 3.2.18 Removing the turn table / spindle motor Turn table (See Figs.41 and 42) • Prior to performing the following procedure, remove the top cover, connector board, chassis unit and clamper assembly. (1) Remove the two screws L attaching the spindle motor as- sembly through the slot of the turn table on top of the body.

  • Page 26: Adjustment

    Exclusive dummy load should be used for AM,and FM. For FM (7) Tracking offset meter dummy load,there is a loss of 6dB between SSG output and (8) Test Disc JVC :CTS-1000 antenna input.The loss of 6dB need not be considered since (9) Extension cable for check direct reading of figures are applied in this working standard.

  • Page 27: Trouble Shooting

    SECTION 5 TROUBLE SHOOTING Feed section Is 5v or 0V at IC541 Is the wiring for IC541 Is 5V present at IC501 Check CD8V. pin 40? pin 40 correct? pins 3,12 and 21? Check the vicinity of IC501. Is 4V present at both Is 6V or 2V present at Check the feed motor sides of the feed motor?
  • Page 28 Signal processing section Compare the L-ch and Is the sound output from No sound from either R-ch to locate the both channels (L, R)? channel. defective point. Normal Is 9V present at IC161 Is 9V present at IC901 Check IC901 and its pin 40? pin 10? peripheral circuits.
  • Page 29 Maintenance of laser pickup Replacement of laser pickup (1) Cleaning the pick up lens Before you replace the pick up, please try to clean the lens Turn of the power switch and, disconnect the with a alcohol soaked cotton swab. power cord.
  • Page 30 16 pin cord diagram OR/WH Black Green BL/WH Violet Gray Blue WH/BK White Yellow GN/BK Orange VI/BK GY/BK OR/WH MEMORY GY/BK BL/WH REMOTE VI/BK WH/BK GN/BK Rear Right Auto Antenna Front Right ACC Line Illuminations Control Front Left Rear Left Ground MEMORY Memory Backup Battery+...
  • Page 31 (No.MA050)1-31...
  • Page 32 VICTOR COMPANY OF JAPAN, LIMITED AV & MULTIMEDIA COMPANY MOBILE ENTERTAINMENT CATEGORY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan (No.MA050) Printed in Japan...

  • Page 33: Parts List

    PARTS LIST [ KD-G700 ] * All printed circuit boards and its assemblies are not available as service parts. Area suffix J -------------- Northern America - Contents - 3- 2 Exploded view of general assembly and parts list (Block No.M1) 3- 4 CD mechanism assembly and parts list (Block No.MB)
  • Page 34 Exploded view of general assembly and parts list Block No.
  • Page 35 GE31188-001A DETACH BUTTON FSKW3002-012 COMP.SPRING GE10085-001A REAR COVER GE40211-001A REAR LENS GE40216-001A REAR LENS (R) GE40218-010A SHEET (x2) VKZ4777-001 MINI SCREW (x4) GE40204-001A JVC BADGE GE40218-005A SHEET (x2) GE31201-002A LCD CASE GE31036-001A LCD LENS GE31037-001A LENS CASE GE40200-002A LIGHTING SHEET...
  • Page 36 CD mechanism assembly and parts list Block No. Grease TN-2001-1011 TNG-87 GP-501MK CFD-005Z GP-501A...
  • Page 37 CD mechanism Block No. [M][B][M][M]  Symbol No. Part No. Part Name Description Local 30320101T FRAME 30320102T TOP COVER 30320115T DANPER F 30320116T DANPER R 303205505T CHASSIS RIVET 303205503T CHANGE P. RVT A 303205301T CLAMPER ASS'Y 303205302T SPINDLE MOTOR A 30320502T CLAMPER ARM 30320503T...

  • Page 38: Electrical Parts List

    Electrical parts list Main board  Symbol No. Part No. Part Name Description Local Block No. [0][1][0][0] D903 RB160M-30-X SB DIODE  Symbol No. Part No. Part Name Description Local D904 1SS355-X SI DIODE D951 UDZS3.9B-X Z DIODE IC31 TB2118F-X PLL IC NCB31EK-473X C CAPACITOR...
  • Page 39  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local C313 NDC31HJ-101X C CAPACITOR 100pF 50V J C559 NCB31EK-473X C CAPACITOR 0.047uF 25V K C314 NDC31HJ-101X C CAPACITOR 100pF 50V J C560 NCB31HK-103X C CAPACITOR 0.01uF 50V K...
  • Page 40  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local NRSA63J-332X MG RESISTOR 3.3kΩ 1/16W J R423 NRSA63J-101X MG RESISTOR 100Ω 1/16W J NRS181J-100X MG RESISTOR 10Ω 1/8W J R424 NRSA63J-221X MG RESISTOR 220Ω...

  • Page 41: Front Board

     Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local R712 NRSA63J-473X MG RESISTOR 47kΩ 1/16W J QAX0616-001Z CRYSTAL 10.250MHz R713 NRSA63J-106X MG RESISTOR 10MΩ 1/16W J X401 QAX0413-001Z CRYSTAL 16.9344MHz R714 NRSA63J-473X MG RESISTOR 47kΩ...
  • Page 42  Symbol No. Part No. Part Name Description Local R609 NRSA63J-272X MG RESISTOR 2.7kΩ 1/16W J R610 NRSA63J-392X MG RESISTOR 3.9kΩ 1/16W J R611 NRSA63J-103X MG RESISTOR 10kΩ 1/16W J R612 NRSA63J-821X MG RESISTOR 820Ω 1/16W J R613 NRSA63J-821X MG RESISTOR 820Ω...
  • Page 43 <MEMO> 3-11...
  • Page 44 Packing materials and accessories parts list Block No. A1, A2, A3, A4, A5, A6, A7, A8, A9, A10 KIT: A11, A12, A13, A14, A15 3-12...
  • Page 45 Packing and Accessories Block No. [M][3][M][M]  Symbol No. Part No. Part Name Description Local GET0197-001A INST BOOK ENG SPA FRE GET0197-002A INSTALL MANUAL GET0206-001A IMPORTANT SHEET GET0210-001A DEMO MODE SHEET BT-51018-3 WARRANTY CARD BT-52006-2 WARRANTY CARD BT-51034-1 J=REGIST CARD LVT1120-001A MP3 GUIDE LVT0717-001B...

  • Page 46: Schematic Diagrams

    SCHEMATIC DIAGRAMS CD RECEIVER KD-G700 CD-ROM No.SML200401 Area suffix J -------------- Northern America SOUND SOURCE Contents Block diagram Standard schematic diagrams Printed circuit boards 2-9 to 11 No.MA050SCH COPYRIGHT 2004 VICTOR COMPANY OF JAPAN, LTD. 2004/1...

  • Page 47: Safety Precaution

    Safety precaution 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 48 < M E M O >...

  • Page 49: Block Diagram

    Block diagram SW1,SW2,PSW SPINDLE+ SPINDLE- BUS0 to BUS3 DMO,FMO POSITION SET IC501 FEED+ BUCK,CCE TRO,FOO SWITCH FEED- IC541 TRACKING+ DRIVER FEED+ TRACKING- LOAD&FEED FEED- FOCUS+ MOTOR FOCUS- RFGC,RF RFRP,RFDC SPINDLE+ TEB,SEL SPINDLE SPINDLE- LRCK TE,FE AOUT MOTOR VF1,VF2, VT1,VT2, CDRW MD,LD IC521 SW1, SW2...
  • Page 50 J301 LINE OUT FRONT L,FRONT R L-CH REAR L,REAR R R-CH OUTLF FM/AM OUTLR TUNER OUTRF IC301 OUTRR IC161 POWER SD/ST E.VOLUME AMP. MONO IC31 SM,FM/AM FM/AM OSC SEEK/STOP FRONT LEFT (+) FM VT FRONT LEFT (-) CD.L AM VT PLLCE FRONT RIGHT (+) CD.R...
  • Page 51 Standard schematic diagrams Main amplifier section QAU0312-001 QAM0556-001 1/50 2.2K 2.2K 1/50 0.015 0.1/50 0.015 0.047 0.01 0.01 UN2211-X 1000P 1000P TB2118F-X IC31 2SD601A/R/-X 2SB709A/R/-X RA31 10/16 NRZ0065-222X 4.7K 2SB624/4/-X 0.01 0.01 UN2111-X 100P UN2211-X 6.2K 47/6.3 0.047 UN2211-X 100/10 PLLDI PLLCL PLLDA...
  • Page 52 J301 QNN0489-001 IC301 LA47515 Q321 Q331 Q341 2SD1781K/QR/-X 2SD1781K/QR/-X 2SD1781K/QR/-X Q351 2SD1781K/QR/-X C162 1/50 C163 1/50 1/50 C164 C165 1/50 C352 R179 10/16 C161 0.47 C166 1/50 R178 C332 0.47 IC161 C307 C305 C320 BD3807K 1/50 100/16 C167 22/16 1/50 C301 1/50 C302...
  • Page 53 CD servo control section C529 100/6.3 C528 C532 0.01 R533 R511 R510 1.5k 8.2k VREF R532 R531 R535 R537 CD-RW R512 R509 1.5k C531 C530 C534 C504 FEED+ 0.047 FEED- SPINDLE+ SPINDLE- C505 0.047 C527 C506 0.0068 FOCUS+ 0.047 C522 0.01 FOCUS- TRACKING-...
  • Page 54 R510 R508 8.2k R509 R503 4.7k C510 R517 C501 C509 5.1k 47/6.3 C502 C503 0.01 R518 R514 100/10 C511 8.2k R515 D501 1A3G-T1 Q501 R504 2SB1322/RS/-T R502 Q502 2SB1132/QR/-X 8.2k IC501 LA6242H-X R501 R516 C508 10/16 C557 470P 0.047 C558 C556 C559 470P...
  • Page 55 LCD & Key control section LCD1 QLD0296-001 JS601 QSW0793-001 R604 R603 R602 R601 R661 1.8k 1.2k R666 S605 S603 S602 S601 SD602 R667 C608 Q644 0.01 UN2211-X NSW0218-001X Q645 UN2211-X Q646 UN2211-X R610 R611 R609 R608 R607 R606 R605 3.9k 2.7k 1.8k 1.2k...
  • Page 56 CN601 NNZ0098-001X LCDDA R676 3.3k R677 LCDCE 3.3k LCDCL R678 3.3k KEY1 KEY2 To CN701 ENC2 (SHEET 1) JS601 KEY0 -001 TEMP ACC5V ENC2 ENC1 R685 ENC1 RESET R666 R668 R669 COM8 D691 COM7 TH685 1SS355-X COM6 NAD0022-103X R667 COM5 C608 C609 COM4...
  • Page 57 Printed circuit boards Main board Forward side L901 C903 J301 C901 CN901 J801 C881 C171 C170 R165 R166 R247 D782 C307 C168 D162 C916 R162 D901 D161 C305 R161 R901 C180 R246 C784 C316 R781 C352 C332 C244 C317 R176 C181 C243 C318...
  • Page 58 Main board Reverse side D902 C917 R903 C903 C901 J801 R902 C918 C333 J301 C306 CN901 C881 CN702 C916 C305 D901 C307 R901 C243 C180 C784 C244 C181 C332 C352 C178 C322 C342 C176 C179 C166 C167 C302 C782 C164 C781 C165 C162...
  • Page 59 Front board Forward side S603 S617 D608 Q644 Q645 SD602 SD601 LCD1 D641 D601 D620 D618 D642 R632 S605 D643 S602 D617 R612 S601 R611 D607 D616 D621 D622 D602 D611 D613 R607 R605 S616 D623 D610 D614 D612 S612 R609 R606 D609...
  • Page 60 < M E M O >...
  • Page 61 VICTOR COMPANY OF JAPAN, LIMITED AV & MULTIMEDIA COMPANY MOBILE ENTERTAINMENT CATEGORY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan Printed in Japan (No.MA050SCH)

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