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JVC KD-S7350 Service Manual
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JVC KD-S7350 Service Manual

JVC KD-S7350 Service Manual

Cd receiver
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3 7 63 1515 0
SERVICE MANUAL
01
2003
49778
TE
L 13942296513
1
Important Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
2
Disassembly method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
3
Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23
www
4
Description of major ICs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-27
.
http://www.xiaoyu163.com
CD RECEIVER
KD-S7350/KD-S690
KD-S7350
KD-S690
Model
Rear LINE OUT terminal for front speaker
KD-S7350
KD-S690
TABLE OF CONTENTS
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u163
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COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LTD.
http://www.xiaoyu163.com
2 9
8
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3
6 7
1 3
1 5
Provide
Not provide
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.
KD-S7350/KD-S690
9 4
2 8
0 5
8
2 9
9 4
2 8
Area Suffix
J
Northern America
m
No.49778
9 9
9 9
2003/02

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Summary of Contents for JVC KD-S7350

  • Page 1 KD-S7350/KD-S690 3 7 63 1515 0 SERVICE MANUAL CD RECEIVER 49778 2003 KD-S7350/KD-S690 KD-S7350 KD-S690 L 13942296513 Model Rear LINE OUT terminal for front speaker KD-S7350 Provide Area Suffix KD-S690 Not provide Northern America TABLE OF CONTENTS Important Safety Precautions ............1-2 Disassembly method .

  • Page 2: Important Safety Precautions

    KD-S7350/KD-S690 3 7 63 1515 0 SECTION 1 Important Safety Precautions 1.1 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.
  • Page 3 KD-S7350/KD-S690 3 7 63 1515 0 1.2 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.

  • Page 4: Disassembly Method

    KD-S7350/KD-S690 3 7 63 1515 0 SECTION 2 Disassembly method 2.1 Main body section 2.1.1 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 and remove the front panel assembly in the direction of the arrow.
  • Page 5 KD-S7350/KD-S690 3 7 63 1515 0 2.1.3 Removing the heat sink (See Fig.4.) (1) Remove the two screws B and two screws C on the left side of the main body. Heat sink Fig.4 2.1.4 Removing the bottom cover (See Figs.5 and 6.)
  • Page 6 KD-S7350/KD-S690 3 7 63 1515 0 2.1.6 Removing the main board assembly Main board (See Fig.8.) • Prior to performing the following procedure, remove the front panel assembly, front chassis assembly, heat sink, bottom cover and rear bracket (1) Remove the two screws G attaching the main board.
  • Page 7 KD-S7350/KD-S690 3 7 63 1515 0 2.1.8 Removing the front board (See Figs.10 to 12.) • Prior to performing the following procedure, remove the front panel assembly. (1) Remove the four screws J on the back side of the front pan- el assembly.
  • Page 8 KD-S7350/KD-S690 3 7 63 1515 0 2.2 CD Mechanism Assembly 2.2.1 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.
  • Page 9 KD-S7350/KD-S690 3 7 63 1515 0 2.2.2 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.
  • Page 10 KD-S7350/KD-S690 3 7 63 1515 0 2.2.3 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.
  • Page 11 KD-S7350/KD-S690 3 7 63 1515 0 2.2.4 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 12 KD-S7350/KD-S690 3 7 63 1515 0 2.2.5 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 13 KD-S7350/KD-S690 3 7 63 1515 0 2.2.6 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 as- sembly in the direction of the arrow to remove it from the chassis rivet assembly.
  • Page 14 KD-S7350/KD-S690 3 7 63 1515 0 2.2.7 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 15 KD-S7350/KD-S690 3 7 63 1515 0 2.2.9 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 16 KD-S7350/KD-S690 3 7 63 1515 0 2.2.11 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.
  • Page 17 KD-S7350/KD-S690 3 7 63 1515 0 2.2.12 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...
  • Page 18 KD-S7350/KD-S690 3 7 63 1515 0 2.2.13 Removing the select arm R / link plate Joint c' Link plate Joint r (See Figs.27 and 28) Select arm R Joint b' • Prior to performing the following procedure, remove the top plate assembly.
  • Page 19 KD-S7350/KD-S690 3 7 63 1515 0 2.2.15 Removing the loading roller assembly Loading roller assembly (See Figs.31 to 33) • Prior to performing the following procedure, remove the Roller guide spring clamper assembly and top plate assembly. (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 20 KD-S7350/KD-S690 3 7 63 1515 0 2.2.16 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.
  • Page 21 KD-S7350/KD-S690 3 7 63 1515 0 2.2.17 Removing the gears Joint p' (See Figs.37 to 40) • Prior to performing the following procedure, remove the top Change plate rivet assembly cover, chassis unit, top plate assembly and pickup unit.
  • Page 22 KD-S7350/KD-S690 3 7 63 1515 0 2.2.18 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 23: Adjustment

    6. Digital tester FM 87.5MHz ~ 107.9MHz 7. Tracking offset meter AM 530kHz ~ 1710kHz 8. Test Disc JVC : CTS-1000 9. Extension cable for check EXTSH002-22P × 1 Dummy load Exclusive dummy load should be used for AM, and FM. For FM dummy load, there is a loss of 6dB between SSG output and antenna input.
  • Page 24 KD-S7350/KD-S690 3 7 63 1515 0 3.2 Troubleshooting 3.2.1 Feed section Is the voltage output at Is the wiring for IC521 Is 5V present at IC581 Check CD 9V IC521 pin u 5V or 0V? (90) ~ (100) correct? pin 6? and 5V.
  • Page 25 KD-S7350/KD-S690 3 7 63 1515 0 3.2.5 Signal processing section No sound from either Compare the L-ch and R-ch Is the sound output from channel. to locate the defective point. both channels (L, R)? Check the vicinity of the...
  • Page 26 KD-S7350/KD-S690 3 7 63 1515 0 3.3 Maintenance of laser pickup 3.4 Replacement of laser pickup (1) Cleaning the pick up lens Before you replace the pick up, please try to clean the lens Turn off the power switch and, disconnect the power cord with a alcohol soaked cotton swab.

  • Page 27: Description Of Major Ics

    KD-S7350/KD-S690 3 7 63 1515 0 SECTION 4 Description of major ICs 4.1 HA17558F (IC571) : Ope. amp. • Pin layout & Block diagram L 13942296513 u163 (No.49778)1-27 http://www.xiaoyu163.com...
  • Page 28 KD-S7350/KD-S690 3 7 63 1515 0 4.2 LA6579H (IC561) : 4-Channel bridge driver • Pin layout & Block diagram VIN1-A VIN1 VIN1_SW [H]: OP-AMP_A [L]: OP-AMP_B VIN1+A VIN1-B VCCP1 VIN1+B Signal system S-GND power supply VIN1-SW All outputs ON/OFF...
  • Page 29 KD-S7350/KD-S690 3 7 63 1515 0 • Pin function Pin No. Symbol Function VIN1-A CH1 input AMP_inverted input VIN1+A CH1 input AMP_non-inverted input VCCP1 CH1 and CH2 power stage power supply VO1+ Output pin(+)for channel 1 VO1- CH1 output pin (-) for channel 1...
  • Page 30 KD-S7350/KD-S690 3 7 63 1515 0 4.3 TA2157FN (IC501) : RF amp • Pin layout • Block diagram PEAK 50 A BOTTOM PEAK L 13942296513 1.75k 240k 15pF x0.5 240k 15pF x0.5 180k 40pF RFGC (APC SW) (TE BAL)
  • Page 31 KD-S7350/KD-S690 3 7 63 1515 0 • Pin function Pin No. Symbol Function 3.3V power supply pin Main-beam amp input pin Main-beam amp input pin Sub-beam amp input pin Sub-beam amp input pin Monitor photo diode amp input pin Laser diode amp output pin "APC circuit ON/OFF control signal, laser diode (LDO) control signal input or bottom/...
  • Page 32 KD-S7350/KD-S690 3 7 63 1515 0 4.4 TC94A14FA (IC521) : DSP & DAC • Pin layout & Block diagram Clock generator 1-bit Servo control Digital equalizer Address automatic circuit adjustment circuit Data CLV servo slicer 16 k Synchronous guarantee...
  • Page 33 KD-S7350/KD-S690 3 7 63 1515 0 TMAX TMAX detection result output pin. TMAX Detection Result TMAX Output Longer than fixed period "PV " Within fixed period "HiZ" Shorter than fixed period "AV " LPFN Inverted input pin for PLL LPF amp.
  • Page 34 4.5 UPD178078GF-592 (IC701) : System CPU • Pin layout • Pin function Pin No.. Symbol Function No use JBUS-INT JVC bus communication line JBUS-SI JVC bus communication line JBUS-SO JVC bus communication line JBUS-SCK JVC bus communication line 6 - 8...
  • Page 35 KD-S7350/KD-S690 3 7 63 1515 0 Pin No.. Symbol Function No use GNDPLL AMEO PLL error output for AM FMEO PLL error output for FM ICVPP Setting to write for flash RESET System reset CD mech switch REMOCON Remocon input...
  • Page 36 KD-S7350/KD-S690 3 7 63 1515 0 4.6 RPM6938-SV4 (IC602) : Remote control receiver • Block diagram Comp Detector conversion trimming circuit magnetic shield L 13942296513 u163 1-36 (No.49778) http://www.xiaoyu163.com...
  • Page 37 KD-S7350/KD-S690 3 7 63 1515 0 L 13942296513 u163 (No.49778)1-37 http://www.xiaoyu163.com...
  • Page 38 KD-S7350/KD-S690 3 7 63 1515 0 L 13942296513 u163 VICTOR COMPANY OF JAPAN, LIMITED AV & MULTIMEDIA COMPANY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan (No.49778) Printed in Japan 200302WPC http://www.xiaoyu163.com...

  • Page 39: Schematic Diagrams

    KD-S7350/KD-S690 3 7 63 1515 0 SCHEMATIC DIAGRAMS CD RECEIVER KD-S7350 / KD-S690 CD-ROM No.SML200302 KD-S7350 L 13942296513 KD-S690 Model Rear LINE OUT terminal for front speaker KD-S7350 Provide Area Suffix KD-S690 Not provide Northern America Contents Block diagram...

  • Page 40: Safety Precaution

    KD-S7350/KD-S690 3 7 63 1515 0 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 41 KD-S7350/KD-S690 3 7 63 1515 0 Block diagram L 13942296513 CJ691 CJ601 CN501 u163 http://www.xiaoyu163.com...
  • Page 42 KD-S7350/KD-S690 Standard schematic diagrams 3 7 63 1515 0 Main amplifier section Q976 UN21 D976 1SS355-X QAU0281-001 QNB0100-002 MUTE.CONT 4.7u 3.9K 0.056 JBUS.INT R809 0.012 JBUS.SCK 2SC3661-X 2SC3661-X 2SB709A/R/-X 2SB624/4/-X 2.2/50 0.001 JBUS.I/O JBUS.SO R803 JBUS.SI 2SD601A/R/-X 2.2K KRC102S-X...
  • Page 43 KD-S7350/KD-S690 3 7 63 1515 0 Q976 UN2111-X D976 1SS355-X R331 R332 Q977 MUTE UN2111-X Q331 R335 2.2K C331 2SD1781K/QR/-X 100P Q321 R325 2.2K C321 2SD1781K/QR/-X 100P MUTE.CONT R321 R322 NOT USED R351 R352 CJ321 D331 B801 R355 2.2K...
  • Page 44 KD-S7350/KD-S690 3 7 63 1515 0 CD servo control section R564 R562 8.2K 4.7K R563 R566 FEED- FEED+ 8.2K( 1/10) Q561 FEED- FEED- 2SB1322/RS/-T FEED+ FEED+ SPINDLE- D561 SPINDLE+ 1A3G-T1 R519 SPINDLE- SPINDLE- 150( 1/10W) SPINDLE+ SPINDLE+ FOCUS- FOCUS-...
  • Page 45 KD-S7350/KD-S690 3 7 63 1515 0 R572 R575 C572 C573 R571 CD.L R574 R573 C561 120P 4.7/25 47/10 C571 C574 820P 820P C581 C584 820P 820P R593 R591 C582 C583 R584 R581 R583 120P R585 4.7/25 R582 CD.R C591 100/10 0.001...
  • Page 46 KD-S7350/KD-S690 3 7 63 1515 0 LCD & Key control section LCD1 L 13942296513 R605 R604 R603 R601 KEY0 1.8K 1.2K S605 S606 S604 S602 S601 R610 R609 R608 R607 R606 KEY1 2.7K 1.8K 1.2K S612 S611 S610 S609...
  • Page 47 KD-S7350/KD-S690 3 7 63 1515 0 QSW0793-001 JS690 IC602 RPM6938-SV4 R672 R671 R673 VMC0335-001 0.015 0.015 C612 CJ601 C614 C613 4.7/6.3 ILL_10V ILL_10V ILL_10V ILL_10V ILL_10V ILL_10V ILL_10V ILL_10V ILL_10V REMOCON ENC1 ENC2 R675 Main amplifier DIMMER section CJ691 LCD.CL...
  • Page 48 KD-S7350/KD-S690 3 7 63 1515 0 Printed circuit boards Main board Forward side C901 IC901 CJ321 R351 Q351 Q341 Q331 L901 CJ322 Q321 CN901 B302 C303 C316 D901 C304 B303 R902 C315 C913 R331 R341 R901 C903 C906 R325...
  • Page 49 KD-S7350/KD-S690 3 7 63 1515 0 Main board Reverse side C901 IC901 C333 L901 CJ322 C903 CN901 C913 C904 C902 D901 C300 C891 R901 D903 C906 R332 C341 C351 IC302 R342 R352 R891 C910 R892 D331 C915 C909 C905...
  • Page 50 KD-S7350/KD-S690 3 7 63 1515 0 L 13942296513 u163 VICTOR COMPANY OF JAPAN, LIMITED AV & MULTIMEDIA COMPANY 10-1,1Chome,Ohwatari-machi,Maebashi-city,371-8543,Japan Printed in Japan (No.49778SCH) 2003/02 http://www.xiaoyu163.com...

  • Page 51: Parts List

    KD-S7350/KD-S690 3 7 63 1515 0 PARTS LIST [ KD-S7350/KD-S690 ] * All printed circuit boards and its assemblies are not available as service parts. Area suffix J -------------- Northern America L 13942296513 - Contents - 3- 2 Exploded view of general assembly and parts list (Block No.M1) 3- 5 CD mechanism assembly and parts list (Block No.MB)
  • Page 52 KD-S7350/KD-S690 3 7 63 1515 0 Exploded view of general assembly and parts list Block No. L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 53 2 CHASSIS+MAIN PW QYSDST2604Z SCREW 3 CHASSIS+REAR BK QYSDST2612Z SCREW 2 HEAT SINK+IC BK GE10056-001A FRONT CHASSIS 1 KD-S690 GE10056-002A FRONT CHASSIS 1 KD-S7350 QYSDST2004M SCREW GE30583-001A LOCK LEVER FSKW4005-003 TORSION SPRING 1 FOR LOCK LEVER FSKW3002-015 COMP.SPRING FSXP3026-002 RLS KNOB...
  • Page 54 KD-S7350/KD-S690 3 7 63 1515 0 Parts list (General assembly) Block No. M1MM Item Parts number Parts name Q'ty Description Area LV41843-001A CAUTION LABEL QLD0254-001 LCD MODULE QNZ0442-001 LCD CONNECTOR QMFZ047-150-T FUSE GE30382-019A REAR BRACKET SCREW 1 REAR BKT+REG BK...
  • Page 55 KD-S7350/KD-S690 3 7 63 1515 0 CD mechanism assembly and parts list Block No. Grease TNG-87 TN-2001-1011 GP-501MK CFD-005Z GP-501A L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 56 KD-S7350/KD-S690 3 7 63 1515 0 Parts list (CD mechanism) Block No. MBMM Item Parts number Parts name Q'ty Description Area 30320101T FRAME TOP COVER 30320102T 30320115T DANPER F 30320116T DANPER R 303205505T CHASSIS RIVET 303205503T CHANGE P. RVT A...
  • Page 57 KD-S7350/KD-S690 3 7 63 1515 0 Parts list (CD mechanism) Block No. MBMM Item Description Parts number Parts name Q'ty Area 30321103T LOADING GEAR 3 30321104T LOADING GEAR 4 30321105T LOADING GEAR 5 30321106T LOADING GEAR 6 LOADING GEAR 7...
  • Page 58 KD-S7350/KD-S690 3 7 63 1515 0 Electrical parts list (Main board) Block No. 01 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area QEKJ1CM-106Z E CAPACITOR 10MF 20% 16V C 319 QEKJ1CM-476Z E CAPACITOR...
  • Page 59 KD-S7350/KD-S690 3 7 63 1515 0 Electrical parts list (Main board) Block No. 01 Item Remarks Item Parts number Parts name Remarks Area Parts number Parts name Area D 977 UDZS11B-X Z.DIODE C 574 NCS31HJ-821X C CAPACITOR IC161 TEA6320T-X...
  • Page 60 KD-S7350/KD-S690 3 7 63 1515 0 Electrical parts list (Main board) Block No. 01 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area R 162 NRSA63J-223X MG RESISTOR R 686 NRSA63J-473X MG RESISTOR R 163...
  • Page 61 KD-S7350/KD-S690 3 7 63 1515 0 Electrical parts list (Main board) Block No. 01 Item Remarks Parts number Parts name Area R 568 NRSA63J-302X MG RESISTOR R 571 NRSA63J-183X MG RESISTOR R 572 NRSA63J-333X MG RESISTOR R 573 NRSA63J-123X...
  • Page 62 KD-S7350/KD-S690 3 7 63 1515 0 Electrical parts list (Front board) Block No. 02 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area C 601 NCB31HK-223X C CAPACITOR D 612 SML-310VT/JK/-X C 602 NCS31HJ-681X AL E.CAPACITOR...
  • Page 63 KD-S7350/KD-S690 3 7 63 1515 0 < M E M O > L 13942296513 u163 3-13 http://www.xiaoyu163.com...
  • Page 64 KD-S7350/KD-S690 3 7 63 1515 0 Packing materials and accessories parts list Block No. Block No. A1~A8 L 13942296513 KIT:A9~A13 u163 3-14 http://www.xiaoyu163.com...
  • Page 65 1 FOR INST. BOOK QPA00801205 POLY BAG FSYH4036-068 SHEET 1 MIRAMA SHEET QPA01003003 POLY BAG QPC03004315P POLY BAG PACKING CASE 1 KD-S7350 GE30721-001A GE30724-001A PACKING CASE 1 KD-S690 GE10047-001A EPS CUSHION Parts list (Accessories) Block No. M5MM Item Description Parts number...

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