JVC KD-S670 Service Manual Download

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SERVICE MANUAL

CD RECEIVER

No.49588

Jan. 2001

KD-S670

Area Suffix

Northern America

Contents

Safety precaution
Preventing static electricity
Disassembly method
Adjustment method
Flow of functional until TOC read
Maintenance of laser pickup
Replacement of laser pickup
Description of major ICs

1- 2
1- 3
1- 4
1-11
1-12
1-14
1-14
1-15~27

COMPACT

DIGITAL AUDIO

Summary of Contents for KD-S670

Page 1: ...0 Area Suffix J Northern America Contents Safety precaution Preventing static electricity Disassembly method Adjustment method Flow of functional until TOC read Maintenance of laser pickup Replacement of laser pickup Description of major ICs 1 2 1 3 1 4 1 11 1 12 1 14 1 14 1 15 27 COMPACT DIGITAL AUDIO ...

Page 2: ...ft over on some parts of the chassis Therefore pay attention to such burrs in the case of preforming repair of this system Safety precaution Please use enough caution not to see the beam directly or touch it in case of an adjustment or operation check ...

Page 3: ...ement return the shorted parts to their original condition Refer to the text 2 Do not use a tester to check the condition of the laser diode in the optical pickup The tester s internal power source can easily destroy the laser diode 4 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 ...

Page 4: ...following procedure remove the front panel assembly Release the four joint tabs a on both sides of the front chassis assembly and remove the front chassis assembly toward the front 1 Removing the front chassis assembly See Fig 2 and 3 Disassembly method Main body Fig 1 Fig 2 Fig 3 Front panel assembly Eject button Tab a Tab a Front chassis assembly Front chassis assembly Heat sink Tab a Tab a ...

Page 5: ...ve the front panel assembly the front chassis assembly and the heat sink Turn over the body and unjoint the five joints b with the bottom cover and the body using a screwdriver 1 Removing the bottom cover See Fig 5 and 6 Fig 4 Fig 5 Fig 6 Heat sink A A Joints b Joints b Joint b Joints b Joints b Joint b Bottom cover Bottom cover Rear panel Rear panel ...

Page 6: ... the bottom of the body Disconnect connector CN501 on the main board in the direction of the arrow 1 2 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 the bottom cover and the main board Remove the three screws F attaching the CD mechanism section on the back of the top chassis 1 Removing t...

Page 7: ...e back of the front panel assembly Unjoint the eleven joints c with the front panel and the rear cover Remove the control switch board on the back of the front panel 1 2 3 Removing the control switch board See Fig 10 to 12 Fig 10 Fig 11 Fig 12 G G G G Rear cover Joints c Joints c Front panel Rear cover Front panel Control switch board Joints c ...

Page 8: ...ickup unit to the appropriate position where the flexible wire of the CD mechanism unit can be disconnected easily Refer to Fig 2 ATTENTION Prior to performing the following procedure remove the CD mechanism control board Remove the two springs f attaching the CD mechanism assembly and the front bracket Remove the two screws B and the front bracket while pulling the flame outward Remove the belt a...

Page 9: ...two screws E and both sides rear damper brackets from the dampers Detach the CD mechanism assembly from the left side to the right side 1 2 3 4 Removing the CD mechanism assembly See Fig 1 6 to 9 The CD mechanism assembly can be removed if only the rear damper bracket on the left side is removed ATTENTION Fig 6 Fig 7 Fig 8 Fig 9 Rear damper bracket Fix arm R Damper D D Damper bracket CD mechanism ...

Page 10: ...up mount nut from the pickup unit Pull out the FD screw 2 Removing the pickup unit See Fig 10 and 11 When reattaching the pickuap unit reattach the part j of the pickup unit then the part i of the FD screw ATTENTION Prior to performing the following procedure remove the CD mechanism control board the front bracket loading motor the CD mechanism assembly and the feed motor assembly Turn up the CD m...

Page 11: ...C14 4V 10 5 16V Load impedance 4 2 Speakers connection Line oout impeadance 20k Output Level Line out 2 0V Vol MAX How to connect the extension cable for adjusting 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 since direct reading of figures are applied in this workin...

Page 12: ...oop ON When the laser diode correctly emits Microprocessor commands Rough Servo Mode CLV Servo Mode ProgramArea CLV Servo Mode Lead In Area Digital 0 RF signal Flow of functional operation until TOC read When the pickup correctly moves to the inner area of the disc TERMINAL Microprocessor commands FMO TC9462 53 FEED MOTOR TERMINAL IC581 5 REST SW When the disc correctly rotates Tracking Servo Loop...

Page 13: ... 15 18 Check the pickup and its connections NO YES YES YES Does the S search waveform appear at IC581 pins 17 and 18 Is the disk rotated Does the RF signal appear at TP1 Is 4V present at IC581 pins 7 and 8 Check the spindle motor and its wiring Is 4V present at IC521 pin 55 Check the vicinity of IC581 Check IC501 and IC521 YES NO NO NO NO NO YES YES YES Check the circuits in the vicinity of IC501 ...

Page 14: ...e this adjustment should be performed to match the characteristics of the whole optical block do not touch the semi fixed resistor If the laser power is lower than the specified value the laser diode is almost worn out and the laser pickup should be replaced If the semi fixed resistor is adjusted while the pickup is functioning normally the laser pickup may be damaged due to excessive current Turn...

Page 15: ...L IAL Serial data input output Ground output left rear output left front Treble control capacitor left channel or input from an external equalizer Bass control capacitor left channel or output to an external equalizer Bass control capacitor left channel Input volume 1 left control part Input loudness left control part Output source selector left channel Not used Not used Input C left source Not us...

Page 16: ...A 12 CS BDO 13 BDO 14 CS BRT 15 OFTR 16 NRFDET 17 GND 18 36 PDAC 35 PDBD 34 PDF 33 PDE 32 PDER 31 PDFR 30 TBAL 29 FBAL 28 EF 27 EF OUT 26 TE 25 TE OUT 24 CROSS 23 TE BPF 22 VDET 21 LD OFF 20 VREF 19 ENV 30 24 25 26 23 22 1 4 3 33 32 34 31 36 35 13 14 15 16 20 2 21 6 29 7 28 27 8 9 10 17 11 12 19 ENV CURCUIT RF DET AGC EQ BDO OFTR VCBA VCBA VCBA VCBA ...

Page 17: ...ction terminal ARF output terminal RF detection capacity connection terminal HPF amp capacity connection terminal Capacity connection terminal for RF discernment side envelope detection BDO output terminal Capacity connection terminal for RF discernment side envelope detection OFTR output terminal RFDET output terminal Connect to GND 3TENV output terminal VREF output terminal APC OFF control termi...

Page 18: ...T 2 PWR GND2 R F IN 3 IN 4 PRE GND ON TIME C Muting ON Time Control Circuit Protective circuit Protective circuit Mute circuit Ripple Filter Stand by Switch N C 0 22 F 2200 F 0 022 F 0 22 F TAB 5V ST ON 47 F 0 22 F 0 22 F 22 F Mute 10K 3 3 F OUT 3 OUT 3 Low Level Mute ON PWR GND3 OUT 4 OUT 4 PWR GND4 LA4743B IC321 Power amp 1 Block diagram ...

Page 19: ...or front Rch Stand by input Output for front Rch Power input Output for rear Rch Power GND Output for rear Rch Ripple filter Rear Rch input Front Rch input Signal GND Front Lch input Rear Lch input Power on time control Output for rear Lch Power GND Output for rear Lch Power input Output for front Muting control input Output for front Power GND Non connection RPM6938 SV4 IC602 Remote sensor Vcc Vc...

Page 20: ...27 26 25 24 23 22 21 20 19 18 17 16 15 FR 1 2 3 4 5 6 7 8 9 10 11 12 13 14 FR CH 3 4 5 Power supply Output control CH5 CH4 CH2 CH1 CH3 22K 11K 5VREG PNPTr The outside putting 22K 22K 22K 11K 11K 11K CH1 2 Power supply LA6567H X IC541 CD driver 1 Pin layout blockdiagram Level shift Level shift Level shift Level shift Thermal shutdown Input Signal system power supply ...

Page 21: ...nt Regulator terminal Outside putting PNP base Regulator terminal Outside putting PNP collector Standard voltage input terminal Signal system power supply It is short with VCC1 VCC2 CH4 Input terminal For gain adjustment CH4 Input terminal 5CH VLO Output voltage set terminal Signal system GND 5CH VLO Signal output switch terminal FWD Input of logic of loading part 5CH VLO Signal output switch term...

Page 22: ...SUBQ AVDD2 CLVS CRC BLKCK CLDCK SBCK SUBC DEMPH RESY FLAG6 RESY EFM DEMODULATION SUBCODE DEMODULATION SYNC INTERPOLATION 16k SRAM CIRC ERROR CORRECTION DEINTERLEVE LRCKIN MSEL BCLK SSEL SRDATAIN PSEL IOSEL DIGITAL DEEMPHSIS 8TIMES OVER SAMPUNC DIGITAL FILTER 1BIT DAC LOGIC S PEM R PEM L DIGITAL AUDIO INTERFACE DIGITAL AUDIO INTERFACE INTER POLATION SOFT MUTING DIGITAL ATTENUATION PEAK DETECTIVE AU...

Page 23: ...al output Kick pulse output Tracking drive output Focus drive output Reference voltage input pin for D A output block TVD FOD FBA TBAL Focus Balance adjust signal output Tracking Balance adjust signal output Focus error signal input Analog input Tracking error signal input Analog input RF envelope signal input Analog input Vibration detect signal input H detect Off track signal input H off track T...

Page 24: ... ANT CTRL VCC BATT DET AUDIO OUT CTRL CD OUT ILM AJ ILM OUT GND Output voltage is VCC 1 V when M or H level applied to CTRL pin Output voltage is VCC 1 V when M or H level to CTRL pin and H level to ANT CTRL Connected to ACC Regular 5 7V Output voltage is 5V when M or H level applies to CTRL pin Output for ACC detector L ANT output OFF H ANT output ON Connected to VCC Low battery detect Output vol...

Page 25: ...as Load Circuit 1 Sample as Load Circuit 1 Sample as Load Circuit 1 1k 1k S1 CL Input Outout C L H H A X L H Y Z H L 1 2 3 4 5 6 7 14 13 12 11 10 9 8 HD74HC126FP X IC631 Buffer 1 Terminal layout 2 Block diagram 3 Pin function 8 7 6 5 4 3 2 1 V B OUTPUT B INPUT B INPUT A INPUT A INPUT A OUTPUT V NJM4565M WE IC351 Ope amp ...

Page 26: ...nput Common driver output pins The frame frequency is given by t0 fosc 384 Hz Power supply connection Provide a voltage of between 4 5 and 6 0V Display turning off input pin INT L Vss off S1 to S52 COM1 to COM3 L INT H VDD on Serial data can be transferred in display off mode Used for applying the LCD drive 2 3 bias voltage externally Must be connected to VDD2 when a 1 2 bias drive scheme is used ...

Page 27: ... command data output CD LSI command load signal No use No use E volume clock output E volume data output 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 76 75 76 77 78 79 80 CD ON RELAY BBE CTL BEEP SW4 SW1 SW3 REST JOG0 JOG1 CD SENSE STATUS P SAVE2 SD ST REMOCON J BUS INT BAND MONO IFRQ AGC MUTE LEVEL S METER KEY CHANGE KEY2 KEY1 KEY0 P SAVE1 SEN...

Page 28: ...KD S670 Printed in Japan 200101 S VICTOR COMPANY OF JAPAN LIMITED MOBILE ELECTRONICS DIVISION PERSONAL MOBILE NETWORK BUSINESS UNIT 10 1 1Chome Ohwatari machi Maebashi city Japan No 49588 ...

Page 29: ...TRACKING FOCUS FEED SPINDLE LOADING VDD CDON RELAY DETACH KEY0 2 REMOCON LCD CLK LCDSO LCD CE ENC1 2 COM1 3 SEG1 52 LCD CLK LCDSO LCD CE REMOCON REMOCON ENC1 2 ENCODER IC321 POWER AMP IC151 CD LPF OP AMP IC501 RF AND SERVO AMP IC561 DIGITAL SERVO DSP D A CONVERTER IC541 SERVO BTL DRIVER VCC VCC 9V VCC C CN901 CN801 CJ601 IC602 CJ321 LINE OUT QNN0170 001 NOT USED IC601 µ COM KEY MATRIX IC951 LCD DR...

Page 30: ... 9989 3 3K 2SB1197 UN2211 X 1K 1K 2 2K 100 27K 100 0 01 2SD1048 6 7 X UN2111 X 2SD1048 6 7 X 2 2K 1K 1K HA13164 QNN0170 001 1K 2SD601 2SD601 0 001 1K 1K 10K 2 2K 100 2SD601 QAU0205 001 1SS133 47K 47K 1 50 1 50 0 22 0 22 22 16 TEA6320T 0 022 UN2111 X 100P 100P 100P 100P 100P 100P 100P 100P 47K 470 100 16 0 1 0 1 0 022 1 50 1 50 1 50 1 50 47k 0 1 0 1 2200 16 1N5401TU QNZ0002 001 1SS133 100 1SS133 1S...

Page 31: ...2 QSW0793 001 1 5k VMC0335 001 2 2k 51K 0 022 680P 10K 10K 10K 680 560 910 1 2k 680 560 1 5k 1 2k 910 680 680 910 1 2k 2 2k 680 QLD0162 001 LC75823W QLL0033 003 510 510 4 7 6 3 0 012 1 2K 1 2K 820 510 510 100 510 820 820 0 022 510 820 820 910 910 1 2K 1 2K SML 310LT MN X QLL0033 003 820 820 LCD CE LCD SO LCD CLK LCD_SO LCD_CLK LCD_CO Key0 Key1 REMOCON Key2 R5V S17 S18 ENC2 M GND ENC1 S19 S20 S21 S...

Page 32: ...VREF TE FE 22K 8 2K NJM4565M 12K 12K 12K 12K 56K 56K 270P 56P 0 047 0 022 0 022 22K 56K 22K 470P 0 022 330P 120K QAX0413 001Z 4 7uH 220 6 3 0 01 RF 22 16 2SA1706 820P CD RCH 0 01 A GND CD LCH 0 001 0 001 1K 1K 1K 3 3K 1K 22 100 10 22 100 10 0 01 3P 3 9K 0 1 1 50 100P 0 027 0 0047 0 01 100 10 0 1 0 22 270K 150K 220K 0 022 0 022 0 01 0 33 8 2K 0 01 10P 10P 1M 3 3K 68K 330 12K 56K 100 10 100 10 4 7uH...

Page 33: ...C503 C504 C505 C508 C515 C516 C521 C527 C541 C542 C543 C551 C552 C562 C564 C565 C566 C567 C568 C569 C570 C571 C572 C573 C574 C601 C602 C603 C604 C607 C608 C661 C701 C702 C703 C704 C705 C706 C707 C708 C709 C710 C711 C712 C713 C714 C715 C716 C718 C719 C720 C901 C902 C903 C904 C905 C907 C908 C909 C910 C911 C912 C913 CJ321 CJ701 CJ801 CN501 CN901 D122 D123 D307 D331 D431 D551 D601 D602 D603 D604 D605 ...

Page 34: ...KD S670 2 7 M E M O ...

Page 35: ...semblies are not available as service parts Contents Exploded view of general assembly and parts list CD mechanism assembly and parts list Electrical parts list Packing materials and accessories parts list KD S670 3 2 3 4 3 7 3 12 Area suffix J Northern America ...

Page 36: ...eneral assembly and parts list Block No M M M 1 Main board Front board 2 8 1 8 8 28 26 27 25 20 23 17 18 31 32 29 22 21 30 33 19 24 7 7 10 3 6 51 6 51 50 6 49 45 47 43 46 9 44 48 9 13 16 12 11 15 14 35 35 34 40 37 39 41 36 38 5 42 4 ...

Page 37: ...09 002A EJECT BUTTON 1 22 GE20110 004C D FUNC BUTTON 1 FM CD AM 23 GE30112 001A PUSH BUTTON 2 1 24 GE40102 001A REMOTE LENS 1 25 GE30102 001A SEL BUTTON 1 26 FSYH4036 032 SHEET 1 FOR SEL BUTTON 27 GE30103 001B KNOB 1 28 GE30104 001A RIM LENS 1 29 GE20109 001C UP DOWN BUTTON 1 30 GE30106 001A SND FUNC BUTTON 1 31 FSXP3055 001 DETACH BUTTON 1 32 FSKW3002 012 COMP SPRING 1 FOR DETACH BUTT 33 GE30117 ...

Page 38: ...5 7 91 4 3 7 6 19 18 105 48 43 50 41 42 103 49 49 d 56 107 131 36 107 107 d 38 32 33 130 106 29 108 106 135 104 107 40 63 39 a 51 52 109 132 86 113 113 134 80 117 92 84 c 79 88 93 22 22 89 62 81 82 116 102 101 108 100 133 57 Grease G 31SA G 31SA Bottom side RX 405 CD mechanism assembly and parts list Block No M M M 2 TN CCD1001Z 136J ...

Page 39: ...0310149T REAR DAM BKT Z 1 22 30310151T HUNG UP SP FZ 2 23 30310129T HUNG UP SP R 2 29 30300510T PU GEAR B 1 32 30310544T F M BASE Z 1 33 30310547T FD GR BLK Z 1 36 30310546T PU GUIDE Z 1 38 30310533T THRUST SPR M 1 39 30310548T PU M NUT Z 1 40 30310512T NUT PUSH SPR PL 1 41 30310558T CLP ARM Z 1 42 30310514T CLP ARM SPRING 1 43 30310552T CLAMPER Z 1 48 30310557T CLAMPER PLATE Z 1 49 30310524T DAMP...

Page 40: ...00 9C0620503T C B TAP SCREW 2 M2X5 101 9C2020401T C SCREW TS G 5 M2X4 102 9C4320403T C B TAP SCREW 4 M2X4 103 9C0117223T SCREW 2 M1 7X2 2 104 9C0917703T C TAP SCREW S3 1 M1 7X7 105 9C0320201T C TAP SCREW S3 1 M2X2 106 9C4920013T C TAP SCREW S3 2 M2X10 107 9C4920603T C TAP SCREW B3 4 M2X6 108 9P0220031T TAMS SCREW 2 M2X3 109 9C0314203T C TAP SCREW 1 M1 4X2 110 9C0420253 C TAP SCREW 1 M2X2 5 113 9W0...

Page 41: ...APACITOR C 504 QEKJ1AM 107Z E CAPACITOR 100MF 20 10V C 505 NCB31EK 103X C CAPACITOR C 506 NDC31HJ 3R0X C CAPACITOR C 507 NCB31EK 104X C CAPACITOR C 508 QEKJ1HM 105Z E CAPACITOR 1 0MF 20 50V C 509 NDC31HJ 101X C CAPACITOR C 510 NCB31EK 273X C CAPACITOR C 511 NCB31HK 472X C CAPACITOR C 512 NCB31HK 103X C CAPACITOR C 513 NDC31HJ 331X C CAPACITOR C 514 NCB31EK 104X C CAPACITOR C 515 NCB31EK 103X C CAP...

Page 42: ... 6 7 X TRANSISTOR Q 431 2SD1048 6 7 X TRANSISTOR Q 501 2SB1322 RS T TRANSISTOR Q 541 2SA1706 ST T TRANSISTOR Q 661 UN2111 X TRANSISTOR Q 662 UN2111 X TRANSISTOR Q 701 UN2211 X TRANSISTOR Q 702 2SD601A R X TRANSISTOR Q 703 2SD601A R X TRANSISTOR Q 704 2SB709A R X TRANSISTOR Q 705 2SB1197K QR X TRANSISTOR Q 706 UN2211 X TRANSISTOR Q 902 2SD601A R X TRANSISTOR Q 903 2SB709A R X TRANSISTOR R 121 NRSA6...

Page 43: ...NRSA63J 222X MG RESISTOR R 623 NRSA63J 473X MG RESISTOR R 624 NRSA63J 102X MG RESISTOR R 625 NRSA63J 473X MG RESISTOR R 626 NRSA63J 473X MG RESISTOR R 627 NRSA63J 473X MG RESISTOR R 628 NRSA63J 473X MG RESISTOR R 630 NRSA63J 223X MG RESISTOR R 631 NRSA63J 472X MG RESISTOR R 632 NRSA63J 223X MG RESISTOR R 633 NRSA63J 472X MG RESISTOR R 634 NRSA63J 223X MG RESISTOR R 635 NRSA63J 472X MG RESISTOR R 6...

Page 44: ...R R 614 NRSA63J 681X MG RESISTOR R 615 NRSA63J 911X MG RESISTOR R 616 NRSA63J 122X MG RESISTOR R 631 NRSA63J 821X MG RESISTOR R 632 NRSA63J 122X MG RESISTOR R 633 NRSA63J 122X MG RESISTOR R 634 NRSA63J 911X MG RESISTOR R 635 NRSA63J 911X MG RESISTOR R 636 NRSA63J 511X MG RESISTOR R 637 NRSA63J 511X MG RESISTOR R 638 NRSA63J 511X MG RESISTOR R 639 NRSA63J 511X MG RESISTOR R 640 NRSA63J 511X MG RESI...

Page 45: ...KD S670 3 11 M E M O ...

Page 46: ...KD S670 3 12 A1 A7 A16 A14 A15 A17 A18 KIT A8 A12 P6 P7 P5 P1 P3 P4 P2 P7 A13 Packing materials and accessories parts list Block No M M M 3 Block No M M M 4 ...

Page 47: ... 1 ENG SPA FRE A 2 GET0011 002A INSTALL MANUAL 1 ENG SPA FRE A 3 LVT0717 001A TROUBLE SHOOTIN 1 A 4 BT 51018 2 WARRANTY CARD 1 FOR USA ONLY A 5 BT 52004 1 WARRANTY CARD 1 FOR CANADA ONLY A 6 BT 51020 2 J REGIST CARD 1 FOR USA ONLY A 7 BT 20071B JVC CENTER LIST 1 FOR CANADA ONLY A 8 VKZ4027 202 PLUG NUT 1 A 9 VKH4871 001SS MOUNT BOLT 1 A 10 VKZ4328 001 LOCK NUT 1 FOR M5 A 11 WNS5000Z WASHER 1 A 12 ...

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