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JVC KD-S670 Service Manual

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Download this manual See also: Instruction Manual
SERVICE MANUAL
CD RECEIVER
KD-S670
Contents
COPYRIGHT
2001 VICTOR COMPANY OF JAPAN, LTD.
KD-S670
Area Suffix
J
Northern America
COMPACT
DIGITAL AUDIO
1- 2
1- 3
1- 4
1-11
1-12
1-14
1-14
1-15~27
No.49588
Jan. 2001

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Summary of Contents for JVC KD-S670

  • Page 1: Table Of Contents

    KD-S670 SERVICE MANUAL CD RECEIVER KD-S670 Area Suffix Northern America COMPACT DIGITAL AUDIO Contents Safety precaution 1- 2 Preventing static electricity 1- 3 Disassembly method 1- 4 Adjustment method 1-11 Flow of functional until TOC read 1-12 Maintenance of laser pickup...

  • Page 2: Safety Precaution

    KD-S670 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...

  • Page 3: Preventing Static Electricity

    KD-S670 Preventing static electricity 1.Grounding to prevent damage by 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-S670 Disassembly method <Main body> Removing the front panel assembly (See Fig.1) Press the eject button in the lower right part of the front panel. Remove the front panel assembly from the body. Front panel assembly Eject button Fig.1 Tab a Removing the front chassis assembly (See Fig.2 and 3)
  • Page 5 KD-S670 Removing the heat sink (See Fig.4) Remove the three screws A on the left side of the body. Heat sink Fig.4 Joints b Removing the bottom cover (See Fig.5 and 6) Bottom cover Prior to performing the following procedure, remove the front panel assembly, the front chassis assembly and the heat sink.
  • Page 6 KD-S670 Removing the main board (See Fig.7 and 8) Prior to performing the following procedure, remove the front panel assembly, the front chassis assembly, the heat sink and the bottom cover. Remove the screw B, the four screws C and the...
  • Page 7 KD-S670 Removing the control switch board (See Fig.10 to 12) Prior to performing the following procedure, remove the front panel assembly. Remove the four screws G attaching the rear cover on the back of the front panel assembly. Unjoint the eleven joints c with the front panel and Rear cover the rear cover.

  • Page 8: Cd Mechanism Section

    KD-S670 Damper bracket <CD mechanism section> CD mechanism assembly Removing the CD mechanism control board (See Fig.1 and 2) Unsolder the part a and b on the CD mechanism control board. Remove the stator fixing the CD mechanism control board and the damper bracket (To remove the stator smoothly, pick up the center part).
  • Page 9 KD-S670 Damper bracket assembly CD mechanism Removing the CD mechanism assembly (See Fig.1, 6 to 9) Prior to performing the following procedure, remove the CD mechanism control board and the front bracket (loading motor). Remove the three screws D and the damper bracket.
  • Page 10 KD-S670 Removing the feed motor assembly FD screw Part i Feed motor assembly (See Fig.10) Prior to performing the following procedure, remove the CD mechanism control board, the front bracket Part j (loading motor) and the CD mechanism assembly. Remove the two screws F and the feed motor assembly.

  • Page 11: Adjustment Method

    6. Digital tester FM 87.5MHz ~ 108.0MHz 7. Tracking offset meter MW 520kHz ~ 1620 kHz 8. Test Disc JVC :CTS-1000 9. Extension cable for check EXTGS004-26P 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.The loss of 6dB need not be considered...

  • Page 12: Flow Of Functional Until Toc Read

    KD-S670 Flow of functional operation until TOC read Power ON • When the laser diode correctly Set Function to CD • When the pickup correctly moves emits to the inner area of the disc Microprocessor Microprocessor Disc inserted commands commands TC9462 "53"...
  • Page 13 KD-S670 Feed Section Check CD 9V Is the voltage output at Is the wiring for IC521 Is 5V present at IC581 and 5V. IC521 pin "53" 5V or 0V? (90) ~ (100) correct? pin "11"? Check the vicinity of IC521.

  • Page 14: Maintenance Of Laser Pickup

    KD-S670 Maintenance of laser pickup (1) Cleaning the pick up lens Before you replace the pick up, please try to clean the lens with a alcohol soaked cotton swab. (2) Life of the laser diode When the life of the laser diode has expired, the following symptoms will appear.

  • Page 15: Description Of Major Ics 1-15~27

    KD-S670 Descrption of major ICs TEA6320T-X (IC931) : E.volume 1.Pin layout 2.Block diagram VOLUME 2 MUTE 0 to 55 dB FUNCTION BALANCE OUTRR OUTLR ZERO CROSS FENDER REAR POWER DETECTOR OUTRF OUTLF SUPPLY VOLUME 1 BASS TREBLE +20 to -31 dB...
  • Page 16 KD-S670 AN8806SB-W (IC501) : RF & Servo amp. 1.Pin layout 36 PDAC PD 1 35 PDBD LD 2 LDON 3 34 PDF LDP 4 33 PDE 32 PDER VCC 5 31 PDFR RF- 6 30 TBAL RF OUT 7 29 FBAL RF IN 8 C.AGC 9...
  • Page 17 KD-S670 3. Pin function Pin No. Symbol Function APC amp . Input terminal APC amp . Output terminal LD ON LD ON/OFF control terminal Connect to GND Power supply RF amp . Reversing input terminal RFamp . Output terminal RF OUT...
  • Page 18 KD-S670 LA4743B(IC321) : Power amp. 1.Block diagram 2200 F 0.022 F Vcc 1/2 Vcc 3/4 IN 1 OUT 1+ 0.22 F OUT 1- PWR GND1 Protective circuit OUT 2+ IN 2 OUT 2- 0.22 F PWR GND2 ST BY Stand by...
  • Page 19 KD-S670 LA4743B 2.Terminal layout 3.Pin function Pin No. Symbol Function Header of IC Power GND OUTRR- Output(-) for front Rch Stand by input STBY OUTRR+ Output (+) for front Rch VCC1/2 Power input OUTRF- Output (-) for rear Rch Power GND...
  • Page 20 KD-S670 LA6567H-X(IC541) : CD driver 1.Pin layout & blockdiagram CH 3,4,5 Thermal shutdown VCC2 Power supply V05- V05+ S-GND V04+ VCONT V04- VIN4 V03+ VIN4G Signal system power supply V03- VCC-S VC2+ VREF-IN 5VREG(PNPTr The outside putting) V02- REG-OUT V01+...
  • Page 21 KD-S670 2. Pin function LA6567H-X(2/2) Pin no. Symbol Function VCC2 CH3,4,5 Power supply( It is short with VCC1,VCC-S) V05- Loading output(-) V05+ Loading terminal (+) V04+ CH4 Output terminal(+) V04- CH4 Output terminal(-) V03+ CH3 Output terminal(+) V03- CH3 Output terminal(-)
  • Page 22 KD-S670 MN35510 (IC561) : Digital servo & digital signal processor 1. Terminal Layout 20 ~ 41 ~ 2. Block Diagram LRCKIN(MSEL) AVSS1 8TIMES BCLK(SSEL) AVDD1 DIGITAL OVER SAMPUNC SRDATAIN OUTR DEEMPHSIS DIGITAL FILTER 1BIT (PSEL) LOGIC IOSEL CLVS BLKCK OUTL...
  • Page 23 KD-S670 3. Description MN35510 symbol I/O Function symbol I/O Function Tracking error shunt signal output(H:shunt) BCLK Not used LRCK Not used PLAY Not used SRDATA WVEL Not used Not used Power supply (Digital) DVDD1 RF signal input DVSS1 Connected to GND...
  • Page 24 KD-S670 HA13164(IC901):Regulator 1.Terminal layout 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 2.Block diagram 100u 0.1u BATT.DET OUT ANT OUT Surge Protector 0.1u EXT OUT COMPOUT BIAS 0.1u VDD OUT ANT CTRL 0.1u...
  • Page 25 KD-S670 HD74HC126FP-X (IC631) : Buffer 1.Terminal layout 3.Pin function Input Outout 2.Block diagram Output Input Output Sample as Load Circuit 1 Output Sample as Load Circuit 1 Output Sample as Load Circuit 1 NJM4565M-WE (IC351) : Ope. amp A OUTPUT...
  • Page 26 KD-S670 LC75823W (IC601) : LCD driver 1. Pin Layout & Symbol 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 2.
  • Page 27 KD-S670 LC72366-9989 (IC601) : Main micon 1. Pin layout 80 ~ 65 25 ~ 40 2. Pin function Symbol Function Symbol Function 4.5MHz crystal oscillation CD ON CD 8V supply on TEST2 Connect to ground RELAY 5V power control J BUS SI...
  • Page 28 KD-S670 VICTOR COMPANY OF JAPAN, LIMITED MOBILE ELECTRONICS DIVISION PERSONAL & MOBILE NETWORK BUSINESS UNIT. 10-1,1Chome,Ohwatari-machi,Maebashi-city,Japan Printed in Japan (No.49588) 200101(S)

  • Page 29: Block Diagram

    KD-S670 Block diagram CN901 CN501...
  • Page 30 KD-S670 Standard schematic diagrams Main amp section TU701 QAU0205-001 CJ701 QNB0100-001 L701 R707 C712 1/50 33uH C713 1/50 R331 R332 R708 R335 C331 2.2K Q331 100P 2SD1048/6-7/-X R435 2.2K Q431 Q661 D662 CJ321 UN2111-X 2SD1048/6-7/-X C431 1SS133 MUTE 100P Q662...
  • Page 31 KD-S670 LCD & Key control section QSW0793-001 RPM6938-SV4 JS690 IC602 R661 0.022 C681 CJ601 R662 VMC0335-001 ILL_10V LCD1 QLD0162-001 REMOCON ENC1 ENC2 BUS2 LCD.CLK LCD.SO LCD.CE KEY0 BUS1 KEY1 KEY2 M.GND R605 R604 R603 R602 R601 Key0 R651 1.5k 1.2k 1.2k...
  • Page 32 KD-S670 CD servo control section D551 DSK10C C552 C551 0.01 220/10 REST CD8V M.GND %CD.RESET% STATUS C543 C541 SUBQ SQCK 0.022 22/16 CD.SENSE MDATA Q541 2SA1706 MCLK R551 8.2K CD.RCH A.GND CD.LCH KICK IC561 IC541 MN35510 FBAL C574 LA6567H-X TBAL 0.01...
  • Page 33 KD-S670 Printed circuit boards Main board (Forward side) Main board (Reverse side) CN901 C901 C331 C431 C332 C432 CJ321 IC901 IC901 C904 C901 D901 C327 L901 C913 CJ321 Q431 Q331 R920 CN901 R904 C327 R901 R922 R908 R905 C913 D901...
  • Page 34 KD-S670 < M E M O >...

  • Page 35: Parts List

    KD-S670 PARTS LIST [ KD-S670 ] * All printed circuit boards and its assemblies are not available as service parts. Area suffix J -------------- Northern America - Contents - Exploded view of general assembly and parts list 3- 2 CD mechanism assembly and parts list...
  • Page 36 KD-S670 Exploded view of general assembly and parts list Block No.
  • Page 37 KD-S670 Parts list (General assembly) Block No. M1MM Item Parts number Parts name Q'ty Description Area ------------ CD MECHA 1 TN-CCD1001Z FSJC1029-401 TOP CHASSIS FSMH3001-204 SIDE PANEL FSKM3011-002 BOTTOM COVER FSMA3004-003 INSULATOR QYSDST2604Z SCREW 3 CHASSIS+MECHA B FSKZ4005-001 SCREW 2 CHASSIS+SIDE PA...
  • Page 38 KD-S670 CD mechanism assembly and parts list Block No. Grease TN-CCD1001Z-136J G-31SA G-31SA(Bottom side) RX-405 106 29...
  • Page 39 KD-S670 Parts list (CD mechanism) Block No. M2MM Item Parts number Parts name Q'ty Description Area 30310101T FRAME DANPER PIN 30310103T 30310107T UPPER PLATE SEL STOP PLATE 30310108T 30310142T SEL ARM (L)L 30310143T SEL ARM (R)L 30310145T S ARM SPRING(L)
  • Page 40 KD-S670 Parts list (CD mechanism) Block No. M2MM Item Parts number Parts name Q'ty Description Area DET SWITCH 2 ESE22MH3 64180403T 68150232T CONNECTOR 1 TKC-W26X-C1 30311105T SOPPORT PLATE 30311138T GR MT BLK(N) 30311109T LDG GEAR (2) LDG GEAR (3) 30311110T...
  • Page 41 KD-S670 Electrical parts list (Main board) Block No. 01 Item Remarks Parts number Parts name Area Item Parts number Parts name Remarks Area C 122 QEKJ0JM-476Z E CAPACITOR 47MF 20% 6.3V C 511 NCB31HK-472X C CAPACITOR C 123 NCB31EK-473X C CAPACITOR...
  • Page 42 KD-S670 (Main board) Block No. 01 Electrical parts list Item Parts number Parts name Remarks Area Item Remarks Parts number Parts name Area C 718 QERF1AM-227Z E CAPACITOR 220MF 20% 10V Q 661 UN2111-X TRANSISTOR C 721 QETB1CM-477 E CAPACITOR...
  • Page 43 KD-S670 (Main board) Block No. 01 Electrical parts list Item Remarks Parts number Parts name Area Item Parts number Parts name Remarks Area R 511 NRSA63J-274X MG RESISTOR R 703 NRSA02J-100X MG RESISTOR R 512 NRSA63J-563X MG RESISTOR R 704...
  • Page 44 KD-S670 (Front board) Electrical parts list Block No. 02 Item Remarks Parts number Parts name Area Item Parts number Parts name Remarks Area C 601 NCB31HK-223X C CAPACITOR R 641 NRSA63J-511X MG RESISTOR C 611 NCB31HK-123X C CAPACITOR R 642...
  • Page 45 KD-S670 < M E M O > 3-11...
  • Page 46 KD-S670 Packing materials and accessories parts list Block No. Block No. A1~A7 A17, A18 KIT : A8~A12 3-12...
  • Page 47 WARRANTY CARD 1 FOR USA ONLY BT-52004-1 WARRANTY CARD 1 FOR CANADA ONLY J=REGIST CARD 1 FOR USA ONLY BT-51020-2 BT-20071B JVC CENTER LIST 1 FOR CANADA ONLY VKZ4027-202 PLUG NUT VKH4871-001SS MOUNT BOLT A 10 VKZ4328-001 LOCK NUT 1 FOR M5...

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