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KD-S621

1. 7 E 3 _ 8 QAU0257 001 5 gt a FM AM PACK ANT 0 nG NG gt gt 294 7 5 MUTING QNB0100 002 eL JE Q861 DTA114EKA X 4 5V ov a 7 ros a 50 R703 177 101 t x x Rg dk SLB 8 leso R701 4 FT zu d 3 amp Sk RAI m viv Tk als 8 NG eae x 3 BB 88 e S g Je 858 826 LINE OUT 228 Rz 5 9 sl 5 amp 85
2. NOTE gt 1 VOLTAGE ARE DC MEASURED WITH DIGITAL VOLTMETER WITHOUT INPUT SIGNAL CONDITION co MODE 2 UNLESS OTHERWISE SPECIFIED ALL RESISTORS ARE 1 16W 5 METAL GLAZE RESISTOR ALL CAPACITORS ARE SOV OR 25V CERAMIC CAPACITOR CD signal ALL RESISTANCE VALUES ARE IN OHM ALL CAPACITANCE VALUES ARE IN UF p pF ALL E CAPACITORS ARE SHOWN IN THE FORM OF CAPACITANCE uF RATED VOLTAGE V B C D E F G 2 3 KD S621 KD S621 amp key control section 4 m AM GQ WA RI 0018 Tit C C B LLL NA ZZ 602 RPM6938 SV4 1 STANDBY Ci Zito TF 8 3 1T 0 012 4763 ds a 1 T 00755 18 Tar nne tn 4 LIGHTING DISPLAY KEY MATRIX CJ601 Tn VMCO335 001 0 00210 002 T T T T T T TT TT TT TTTITTTTITTTTTITTTTYTTTTTTTTTTTTTTTTTTTTTT 9 _ cOeO S S S P MQ eR 4 10 RSV 2 5 NATAN De ee be ae aa T 5 7 5 LCD SCK IC601 LCD SD LC75823W LCD CE a KEYO 2 13 KEY 3992233322282237 Ee 2522 2255000 9000
3. B Removing the loading motor See Fig 3 to 5 Prior to performing the following procedure remove the CD mechanism control board Remove the two springs k attaching the CD mechanism ass y and the front bracket Remove the two screws G and the front bracket while pulling the flame outward Remove the belt and the screw H from the loading motor B Removing the CD mechanism ass y See Fig 1 6 to 9 Prior to performing the following procedure remove pang the CD mechanism control PWB and the front bracket loading motor Remove the three screws and the damper bracket Raise the both sides fix arms and move the fix plates in the direction of the arrow to place the four shafts as shown in Fig 8 and 9 Remove the CD mechanism ass y and the two springs m attaching the flame Remove the two screws J and both sides rear damper brackets from the dampers Detach the CD mechanism ass y from the left side to the right side ATTENTION The CD mechanism ass y can be removed if only the rear damper bracket on the left side is removed KD S621 Loading motor CD mechanism ass y Rear damper bracket Fix plate L J Fix arm L Fig 8 J Rear damper bracket Fix arm R 8 Fix plate R Z Damper KD S621 B Removing the feed motor ass y See Fig 10
4. 1 Solder is put up before the card wire is removed from connector on the CD substrate as shown in Figure When the wire is removed without putting up solder the CD pick up assembly might destroy 2 Please remove solder after connecting the card wire with when you install picking up in the substrate CD mechanism 70 control board FD gear Pickup unit 1 3 KD S621 Disassembly method lt Main body gt E Removing the front panel assembly See Fig 1 1 Press the eject button in the lower right part of the bo 4 E 0 F front panel Remove the front panel assembly from E CA the body Front panel assembly Eject button Fig 1 E Removing the front chassis assembly See Fig 2 and 3 Prior to performing the following procedure remove the front panel assembly 1 Release the four joint tabs a on both sides of the front chassis assembly and remove the front chassis assembly toward the front Front chassis assembly Fig 2 Tab a Front chassis assembly Fig 3 1 4 B Removing the heat sink See Fig 4 1 Remove the three screws A on the left side of the body i Removing the bottom cover See Fig 5 and 6 lt Prior to performing the following procedure remove the front panel assembly the front chassis assembly and the heat sink 1 Turn over the body and unjoint the five joints b with the bottom cover and the body using a screwdriver
5. 3 9 KD S621 W Electrical parts list Front board Block No 02 A Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area C601 NCB31HK 223X C CAPACITOR R651 NRSA63J 222X MG RESISTOR C602 NCS31HJ 681X C CAPACITOR R652 NRSA63J 222X MG RESISTOR C603 NBE20JM 106X TSE CAP SVB20J R653 NRSAG3J 103X MG RESISTOR CJ601 VMC0335 001 CONNECTOR R654 NRSA63J 103X MG RESISTOR D601 LNJ308G81 1 3 X LED VOL G LED R 655 NRSA63J 103X MG RESISTOR D602 LNJ308G81 1 3 X LED VOL G LED R656 NRSAG3J 103X MG RESISTOR D603 LNJ308G81 1 3 X LED LOUD G LED R657 NRSA63J 513X MG RESISTOR D604 LNJ308G81 1 3 X LED SEL G LED R 658 NRSAG3J 184X MG RESISTOR D605 LNJ308G81 1 3 X LED DISP G LED S601 NSW0066 001X TACT SWITCH POWER D606 LNJ308G81 1 3 X LED 1 G LED 602 NSW0066 001X TACT SWITCH VOL D607 LNJ308G81 1 3 X LED 2GLED 603 NSW0066 001X TACT SWITCH VOL D608 LNJ308G81 1 3 X LED 3 G LED 604 NSW0066 001X TACT SWITCH LOUD D609 LNJ308G81 1 3 X LED 4GLED 5605 NSW0066 001X TACT SWITCH DISP D610 LNJ308G81 1 3 X LED 5GLED S606 NSW0066 001X TACT SWITCH 1 D611 LNJ308G81 1 3 X LED 6G LED S607 NSW0066 001X TACT SWITCH SELECT D612 LNJ308G81 1 3 X LED MODE G LED S608 5 0066 001 TACT SWITCH 2 D613 SML 310VT JK X LED SCM R LED 5609 NSW0066 001X TACT SWITCH 3 D614 LNJ308G81 1 3 X LED EJECT GLED S6
6. Sl 59 Sly 2 6 8 298 m m za Beek AYE SG Ta g lg aja iz n a BIB 55 55 55 B 6 SR ER Wu C 3 8 2 LRO E 100 7 RO Q332 Lx 72 29D1781K QR X Q791 185355 85 28B1197K QR X R731 R702 R704 x D333 R436 ud 5 x 2SD1781K QR X 7 5v qssassx 22k 7 2s 9 8 3 5 2 18 R433 ov R434 R732 R733 5 37 F BT ci lx RRO 100 rte amp 8 5 5 0 dk 10k au S ISSE 2 2150 2 BSx 12 L 3 5 ES w 1 EM mia ES t L 8 vB x ze 8T E gl zle BEST POPO x Ele lt RIN GO GO 8 S wi ka Bu 53 Sz E 5 i 28C2412KIR X a 2 D amp 9 gg b 2 2 S El E 8 za HE 5 5 8 PJ P AUDIO SECTION Kan 1 LA4743K POWER AMP R307 C334 4 REST 8818 Zw veo E Eu 9 55 jE 5 ac Y SW5 e w i 5 2 aD 9 E gt 5 x 1 I bi 924 58 C332 5 3v UTE d T MUTE B SECTION j i ics 58 TE a 2 FL TWO 3 R301 TIP vs TEA6320T X 2087 id 99 N3 5 8 a 88 9 a EIE 88 8 3 E VOL 3 g PIPS 8 333 CDRESE pegs 3988 8 8 9TS9 TS 5 88 554 9S Te ay I gjs S cao4 G305 OO dt dius EL RE R308 C335 SEI 2 4466 owrIME TUB 1 7005 0 3 z 3NG 81818 aala ay 5 a 3 Hal la 27k 180 ERAN TLO
7. Contents JVC SERVICE MANUAL CD RECEIVER KD S621 DIGITAL AUDIO Area Suffix Continental Europe Central Europe Safety precaution 1 2 Flow of functional Preventing static electricity 1 3 operation unit TOC read 1 12 Disassembly method 1 4 Maintenance of laser pickup 1 14 Adjustment method 1 11 Replacement of laser pickup 1 14 Description of major ICs 1 15 26 No 49675 COPYRIGHT O 2002 VICTOR COMPANY OF JAPAN LTD Jan 2002 KD S621 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 2 About the earth processing for the destruction prevention by static electricity Static electricity in the work area can destroy the optical pickup laser diode in devices such as CD players Be careful to use proper grounding in the area where repairs are being performed 2 1 Ground the workbench Ground the workbench by laying conductive material such as a conductive sheet or an iron plate over it before placing the traverse unit optical pickup on it 2 2 Ground yourself U
8. 13 14 15 16 17 18 19 20 22 23 29 32 33 36 38 39 40 41 42 43 48 49 50 51 52 56 57 61 62 63 64 65 66 67 30310101T 30310103T 30310107T 30310108T 30310142T 30310143T 30310145T 30310112T 30310155T 30310115T 30310116T 30310134T 30310159T 30310150T 30310156T 30310138T 30310122T 30310148T 30310125T 30310149T 30310151T 30310129T 30300510T 30310544T 30310547T 30310546T 30310533T 30310548T 30310512T 30310558T 30310514T 30310552T 30310557T 30310524T 30310525T 30310545T 30310556T 64180405T OPTIMA 720L1 30311035T 19501403T 30311037T 30311036T 30311038T 30311039T 30311040T FRAME DANPER PIN UPPER PLATE SEL STOP PLATE SEL ARM L L SEL ARM R L S ARM SPRING L TRIG LEVER TRIG PL Z TRIG PL SPRING TRIG ARM FIX ARM L B FIX ARM R Z FIX PL L Z FIX PL R Z LDG GR 6 B LDG GEAR 6 SP S L ARM N S L ARM SPRING REAR DAM BKT Z HUNG UP SP FZ HUNG UP SP R PU GEAR B F M BASE Z FD GR BLK Z PU GUIDE Z THRUST SPR M PU M NUT Z NUT PUSH SPR PL CLP ARM Z CLP ARM SPRING CLAMPER Z 5 DAMPER J CLP ARM SPR L F SCREW GUIDE Z PU G SP PLT Z DET SW C D PICK CAR FPC HOLDER Z WIRE CLAMPER PICK UP FPC Z CONNECT PCB Z J WIRE 5P 2 WIRE LD Z WIRE FD 2 1 cc a a a an we 2 n 2 n on Q a 3s a on on 3s on on 3s np hp 93 a a a a a a s2
9. 303105312T FEED SCREW ASSY 1 133 303111301T LDG MOTOR ASSY 1 134 303111302T RDG RLR SFT ASY 1 135 303105502T ASSY 3 6 W Electrical parts list Main board Block No 01 KD S621 A Item C 101 C 151 C152 153 155 C 201 C 251 C252 C253 C255 C256 C 302 C 303 C 304 C 305 C 306 C 307 C 308 C 309 C310 C311 C312 C319 C 320 C 321 C327 C 328 C 329 C 330 C 331 C 332 C 333 C 334 C 335 C 402 C 403 C404 C 405 C 406 C 407 C 408 C419 C420 C427 C432 C 433 C434 435 C 501 C 502 C 503 C 504 C 505 C 506 C 507 C 508 C 509 C510 C511 C512 C518 C514 C515 Parts number QERF1HM 105Z NCB31HK 102X QEKJ1EM 475Z NDC31H 151X QEKJOJM 476Z QERF1HM 105Z NCB31HK 102X QERF1EM 475Z NDC31HJ 151X QERFOJM 476Z QERF1AM 107Z NCB31HK 822X NCB21CK 184X NCB21CK 224X NCB21HK 333X NCB31HK 562X QERF1EM 475Z QERF1EM 475Z QEKJ1AM 107Z NCB31HK 103X QEKJ1AM 107Z QEKJ1CM 476Z NCS31HJ 221X NCS31HJ 221X QERF1CM 107Z QEKJ1EM 475Z QEKJ1CM 476Z QEKJ1EM 475Z NCB31HK 223X NCB31HK 223X NCB31EK 104X NCB31EK 104X QERF1HM 105Z QERF1HM 105Z NCB31HK 822X NCB21CK 184X NCB21CK 224X NCB21HK 333X NCB31HK 562X QERF1EM 475Z QERF1EM 475Z NCS31HJ 221X NCS31HJ 221X QEKJ1CM 226Z NCB31EK 104X NCB31EK 104X QERF1HM 105Z QERF1HM 105Z NCB31EK 103X QEKJ1AM 107Z NCS31HJ 680X QEKJ1AM 107Z NCB31EK 103X NDC31HJ 3ROX NCB31EK 104X QEKJ1HM 105Z NDC31HJ 101X
10. KD S621 Heat sink A Fig 4 Joints b Bottom cover Joint b Joints b Rear panel Fig 5 Joints b Bottom cover Joints b Rear panel Fig 6 KD S621 m 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 three screws D attaching the rear bracket on the back of the body Remove the rear panel Remove the two screws E attaching the main board on the bottom of the body Disconnect connector CN501 on the main board in the direction of the arrow E Removing the CD mechanism section See Fig 9 lt Prior to performing the following procedure remove 1 the front panel assembly the front chassis assembly the heat sink the bottom cover and the main board Remove the three screws attaching the cassette mechanism section on the back of the top chassis Rear panel D Fig 7 Main board Fig 8 CD mechanism section Top chassis Removing the control switch board See Fig 10 to 12 Prior to performing the following procedure remove the front panel assembly 1 Remove the four screws G attaching the rear cover on the back of the front panel assembly 2 Unjoint the nine joints c with the front panel and the rear cover 3 Remove the control switch board on the back of the
11. R815 R 816 R817 R 818 R 822 R 823 R 825 R 826 R 827 R 828 R 829 R 830 R 831 R 832 R 833 R 834 R 835 R 836 R840 R 841 R 842 R 843 R 844 R 845 R 861 R 862 R 901 R 902 R 903 R 904 R 905 R 906 R 907 R 908 R 909 R910 R911 TU701 X 561 X 801 Parts number NRSA63J 473X NRSA63J 473X NRSA63J 473X NRS181J 472X NRS181J 473X NRSA63J 222X NRSA63J 473X NRS181J 473X NRSA63J 473X NRSA63J 473X NRSA63J 473X NRS181J 473X NRS181J 223X NRS181J 472X NRS181J 223X NRS181J 472X NRS181J 223X NRS181J 472X NRSA63J 473X NRSA63J 473X NRSA63J 473X N N N N N N N Q N N N N N N N N N RSA63J 473X RSA63J 0ROX RSA63J 0ROX RSA63J 0ROX RS181J 471X RS181J 471X RSA63J 912X RZ0125 102X RSA63J 472X RSA63J 104X RSA63J 472X RSA63J 472X RSA63J 393X RSA63J 683X RSA63J 273X RSA63J 473X RS181J 473X QAU0257 001 QAX0714 001Z QAX0406 001Z Parts name MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR C RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR TUNER C RESONATOR CRYSTAL Remarks 1 0K 1W Area
12. front panel KD S621 Rear cover G Fig 10 Joints c Front panel Rear cover Joints c Fig 11 Front panel Control switch board Fig 12 KD S621 BRemoving the CD mechanism control board See Fig 1 and 2 Unsolder the part f and g 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 Remove the screw F attaching the CD mechanism control board Remove the CD mechanism control board in the direction of the arrow while releasing it from the two damper bracket slots i and the front bracket slot j Disconnect the flexible wire from connector on the pickup unit ATTENTION Turn the FD gear in the direction of the arrow to move the entire pickup unit to the appropriate position where the flexible wire of the CD mechanism unit can be disconnected easily Refer to Fig 2 Damper bracket CD mechanism ass y CD mechanism ra control board Front bracket F g Fig 1 Pickup unit Flexible wire Shift the lock Fig 2 CD mechanism control board Loading motor Front bracket Fig 3 Pull outward A Front bracket Pull outward
13. 10 WNS5000Z WASHER A 11 FSKL4010 002 HOOK A 12 FSJB3001 30C HARD CASE A 13 FSKM2004 202 MOUNTING SLEEVE KIT KDGS717K SCREW1 SCREW PARTS KIT 1 7 11 A item Partsnumber ary Description area Block No M5MM ENG GER FRE DUT SPA ITA SWE FIN ENG GER FRE DUT SPA ITA SWE FIN 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 3 13 KD S621 VICTOR COMPANY OF JAPAN LIMITED MOBILE ELECTRONICS DIVISION PERSONAL amp MOBILE NETWORK BUSINESS UNIT 10 1 1Chome Ohwatari machi Maebashi city 371 8543 Japan 200201 No 49675
14. 3s 3s 3s i ESE11SF4 68 30311041T WIRE RS Z 70 64180402T DET SWITCH 2 ESE22MH1 3 5 KD S621 Parts list CD mechanism Block No MBMM A mem Parts umber Ama 64180403T DET SWITCH 2 ESE22MH3 72 68150232T CONNECTOR 1 TKC W26X C1 79 30311105T SOPPORT PLATE 1 30311138T GR MT BLK N 1 81 30311109T LDG GEAR 2 1 82 7 LDG GEAR 3 1 84 30311112T LDG GEAR 5 1 86 30311136T LDG ROLLER 2 88 30311118T L P SPRING L 1 8 30311119T L P SPRING R 1 90 30311123T SW PCB 1 91 30311124T SW ACTUATOR 1 92 30311129T LDG BELT 1 30311140T FRONT BRKT J 1 100 9cos20503T C B TAP SCREW 2 M2X5 101 9C2020401T C SCREW TS G 5 M2X4 102 9C4320403T C B TAP SCREW 4 x x 103 9C0117223T SCREW x 2 M1 7X2 2 x x 104 9co917703T TAP SCREW S3 1 M1 7X7 105 20201 TAP SCREW S3 1 2 2 106 9c4920013T C TAP SCREW S3 2 2 10 107 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 6 NW BLUE 2 2 9X5X0 3 116 9 0725030 LUMILAR W 1 2 3X9 8X0 25 117 9 0640030 WASHER 1 1 4X3 2X0 4 130 303105310T FEED MO ASSY 1 131 303105311T SPINDLE MO ASSY 1 132
15. 821X MG RESISTOR R634 NRSA02 511X MG RESISTOR R635 NRSA02J 511X MG RESISTOR R 636 NRSA02J 152X MG RESISTOR R637 NRSA02 152X MG RESISTOR R638 NRSA02J 221X MG RESISTOR R 639 NRSA02J 221X MG RESISTOR R640 NRSA02J 221X MG RESISTOR R641 NRSA02J 221X MG RESISTOR R642 NRSA02 511X MG RESISTOR R643 NRSA02 511X MG RESISTOR R644 NRSA02J 821X MG RESISTOR R645 NRSA02J 821X MG RESISTOR 3 10 KD S621 Packing materials and accessories parts list Block No Block No A1 A5 PD A 1 3 E 5 Parts list Packing KD S621 Block No M3MM A tem P 1 FSPG4002 001 POLY BAG P 2 QPA00801205 POLY BAG P QPA01003003 POLY BAG P 4 FSYH4036 068 SHEET P GPA01003003 POLY BAG P 6 QPC03004315P POLY BAG P 7 8 FOR INST BOOK FOR SCREW KIT FOR HARD CASE 1 1 1 1 FOR CORD ASSY 1 FOR SET 1 2 GE30407 017A CARTON P GE10036 001A EPS CUSHION Parts list Accessories 14 QAM0089 001 A 15 FSJD2034 001 16P CORD ASSY TRIM PLATE A 1 GET0066 001A INST BOOK 2 GET0066 002A INST BOOK 3 GET0066 003A INSTALL MANUAL A 4 GET0066 004A INSTALL MANUAL A 5 BT 54013 2 W CARD A 6 LV40978 001A CAUTION SHEET A 7 VKz4027 202 PLUG NUT A 8 VKH4871 001SS MOUNT BOLT A 9 VKZ4328 001 LOCK NUT A
16. AMP 1 diagram 220006 ZZ 0 022 Vcc 1 2 Vcc 3 4 i IN 2 0 N u 0 22 ei BY 4 Stand by kaa Switch INE STON Mute 10 Ripple Mute 1052 Us 777 Filter ircui m circuit 777 3 3uF ne OUT Mute ON 0 22 uF 9 OUT 3 25 PWR GND3 PRE GND OUT 4 IN 4 N 14 OUT 4 22 uF Muting amp PWR GND4 ON TIME C 16 ON Time Control 24 77 Circuit 1 18 KD S621 2 Terminal layout 3 Pin function LA4743K UTRF 4 ND CD e OJO lt O 7 10 11 12 13 14 15 16 17 19 20 21 22 23 24 25 z KD S621 LA6567H X IC541 CD DRIVE 1 Pin layout amp blockdiagram VCC2 V05 V05 V04 V04 V03 V03 FR VC2 V02 V01 01 VCC1 VIN1 VIN1G 1 20 CH 3 4 5 Power supply Output control E c o KO gt Thermal shutdown 5VREG PNPTr The outside puuting REV FWD S GND VCONT VIN4 VIN4G VCC S FR VREF IN REG OUT REG IN VIN3G VIN3 VIN2G VIN2 2 Pin function LA6567H X 2 2 Pno al mn O 1 vec CH3 4 5 Power supply It is short with VCC1 VCC S Loading output Loading terminal CH4 Output terminal CH4 Output terminal 6 VO Output terminal CH3 Output terminal 8 VO CH2 Output terminal 9 VO2 X CH2 Output terminal CH1 Output terminal CH1 Output termi
17. CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR E CAPACITOR C CAPACITOR C CAPACITOR E CAPACITOR E CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR E CAPACITOR E CAPACITOR E CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR E CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR E CAPACITOR C CAPACITOR E CAPACITOR C CAPACITOR E CAPACITOR E CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR E CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR E CAPACITOR C CAPACITOR E CAPACITOR C CAPACITOR E CAPACITOR Remarks 100MF 20 10V 22MF 20 16V 220MF 20 10V 100MF 20 10V 100MF 20 10V 220MF 20 10V 47MF 20 10V 20 50V 10MF 20 50V 10MF 20 50V 220MF 20 10V 2 21 20 50V 220MF 20 10V 220MF 20 6 3V 101 20 16V 220MF 20 6 3V 2200MF 22MF 20 16V Area 3 7 KD S621 W Electrical parts list Main board Block No 01 A Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area C904 QERF1CM 226Z E CAPACITOR 22MF 20 16V Q701 DTC114EKA X TRANSISTOR C905 QERF1CM 226Z E CAPACITOR 22MF 20 16V Q702 DTC144EKA X TRANSISTOR C906 NCB31EK 104X C CAPACITOR Q731 25 1623 5 6 TRANSISTOR C907 NCB31HK 103X C CAPACITOR 0732 25 1623 5 6 TRANSISTOR C908 QERF1AM 107Z E CAPACITOR 100MF 20 10V Q791 2SB1197K QR X TRANSISTOR C909 QERF1
18. NCB31EK 273X NCB31HK 472X NCB31HK 103X NDC31HJ 331X NCB31EK 104X NCB31EK 103X Parts name E CAPACITOR C CAPACITOR E CAPACITOR C CAPACITOR E CAPACITOR E CAPACITOR C CAPACITOR E CAPACITOR C CAPACITOR E CAPACITOR E CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR E CAPACITOR E CAPACITOR E CAPACITOR C CAPACITOR E CAPACITOR E CAPACITOR C CAPACITOR C CAPACITOR E CAPACITOR E CAPACITOR E CAPACITOR E CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR E CAPACITOR E CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR E CAPACITOR E CAPACITOR C CAPACITOR C CAPACITOR E CAPACITOR C CAPACITOR C CAPACITOR E CAPACITOR E CAPACITOR C CAPACITOR E CAPACITOR C CAPACITOR E CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR E CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR Remarks 1 0MF 20 50V 4 7MF 20 25V 47MF 20 6 3V 1 0MF 20 50V 4 7MF 20 25V 471 20 1001 20 10V 4 7MF 20 25V 4 7MF 20 25V 100MF 20 10V 100MF 20 10V 47MF 20 16V 100MF 20 16V 4 7MF 20 25V 47MF 20 16V 4 7MF 20 25V 1 0MF 20 50V 1 0MF 20 50V 4 7MF 20 25V 4 7MF 20 25V 22MF 20 16V 1 0MF 20 50V 1 0MF 20 50V 100MF 20 10V 100MF 20 10V 1 0MF 20 50V Area Item C516 C518 C519 C 520 C 521 C 522 C 523 C 524 525 C 527 C 528 C 529 C 530 541
19. Prior to performing the following procedure remove the CD mechanism control board the front bracket loading motor and the CD mechanism ass y 1 Remove the two screws K and the feed motor ass y E Removing the pickup unit See Fig 10 and 11 Prior to performing the following procedure remove the CD mechanism control board the front bracket loading motor the CD mechanism ass y and the feed motor ass y 1 Detach the FD gear part of the pickup unit upward Then remove the pickup unit while pulling out the part n of the FD screw ATTENTION When reattaching the pickuap unit reattach the part o of the pickup unit then the part n of the FD screw 2 Remove the screw L attaching the nut push spring plate and the pickup mount nut from the pickup unit Pull out the FD screw i Removing the spindle motor See Fig 12 and 13 Prior to performing the following procedure remove the CD mechanism control board the front bracket loading motor the CD mechanism ass y and the feed motor ass y 1 Turn up the CD mechanism ass y and remove the two springs p on both sides of the clamper arms Open the clamper arm upward 2 Turn the turn table and remove the two screws M and the spindle motor FD screw Partn Feed motor ass y FD gear Pickup unit Fig 10 FD screw Fig 11 Spindle motor M Adjustment method West
20. VF VE s4 2 2 vec Voc VF T i i oC CN501 QGB2027M1 26S LI g 5 4 5621 i Ll I LL SS eS eS Cd CD SECTION D551 DSK10C T1 CD SENSI C541 22 16 Q541 61 28A1706 ST T C562 0 01 R570 1k R569 1 05680 0 CD RESET SSEL STATUS 1 541 SUBQ LA6557H X eset sack SERVO BTL DAIVER 5 RSEL ouTR 8 TLOCK avons FLOCK ZTEST 7 CD SENSE TOSEL FE RESY MLD TE DEMPH RFENV 26 MDATA VDET GING FT FLAG MCLK TRCRS IPFLAG RFDET FCLK BLKCK PICK UP OPTIMA 720LID Lo ucl cp ees LM dsl LL 1 HOE 1 0 RF AMP 11 NJM4565M WE CD L P F 5 65 2 3 a lt lt Bi VA moss 1500 VE VROO1 ve 26 va MD gt 0 0501 2SA1706 STLT LO VREF Focus Focus LoIL TRACKING TRACKING KAW RAW FOCUS COIL TRACKING COIL goes MAIN GEB10026A R252 C253 C
21. 02X NRS181J 333X NRSA63J 333X NRSA63J 221X NRSA63J 221X NRSA63J 0ROX NRSA63J 104X NRSA63J 102X NRSA63J 224X NRSA63J 0ROX NRSA63J 102X NRSA63J 151X NRSA63J 102X NRSA63J 151X NRSA63J 103X NRSA63J 822X NRSA63J 820X NRS181J 152X NRSA63J 102X NRSA63J 103X NRS181J 471X NRSA63J 103X N N N N N N N N N N N N N N N N N N N RSA63J 102X RSA63J 103X RSA63J 222X RS181J 150X RS181J 150X RS181J 100X RSA63J 223X RSA63J 473X RS181J 103X RS181J 332X RS181J 332X RS181J 332X RS181J 473X RS181J 102X RS181J 103X RSA63J 104X RSA63J 332X RSA63J 332X RSA63J 473X Parts name MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR MG RESISTOR Remarks Area Item R814
22. 10 NSW0066 001X TACT SWITCH 4 D615 LNJ308G81 1 3 X LED FMG LED S611 NSW0066 001X TACT SWITCH 5 D616 LNJ308G81 1 3 X LED CDG LED 612 NSW0066 001X TACT SWITCH EJECT D617 LNJ308G81 1 3 X LED AM G LED S613 NSW0066 001X TACT SWITCH UP D618 LNJ308G81 1 3 X LED UP G LED S614 NSWO0066 001X TACT SWITCH 6 D619 LNJ308G81 1 3 X LED DOWN G LED S615 NSWO0066 001X TACT SWITCH MODE D620 SML 310LT MN X LED POWER R LED S616 NSW0066 001X TACT SWITCH SCM D641 UDZS5 1B X Z DIODE S617 NSW0066 001X TACT SWITCH DOWN D642 1SS355 X DIODE 618 NSW0066 001X TACT SWITCH AM D643 155355 DIODE 619 NSW0066 001X TACT SWITCH FM D645 UDZS6 2B X SI DIODE 5620 NSW0066 001X TACT SWITCH CD 601 LC75828W IC PL601 QLLO056 001 PILOT LAMP PL602 QLL0056 001 PILOT LAMP R601 NRSA63J 681X MG RESISTOR R602 63 561 MG RESISTOR R603 NRSAG3J 681X MG RESISTOR R604 NRSAG3J 911X MG RESISTOR R605 63 122 MG RESISTOR R 606 NRSA02J 681X MG RESISTOR R607 NRSA02J 561X MG RESISTOR R 608 NRSA02J 681X MG RESISTOR R609 NRSA02 911X MG RESISTOR R610 NRSA63J 122X MG RESISTOR R611 NRSA63J 152X MG RESISTOR R612 NRSA63J 681X MG RESISTOR R613 NRSAG3J 561X MG RESISTOR R614 NRSA63J 681X MG RESISTOR R615 NRSAG3J 911X MG RESISTOR R616 NRSA63J 122X MG RESISTOR R617 NRSA63J 152X MG RESISTOR R631 NRSA02J 821X MG RESISTOR R632 NRSA02J 821X MG RESISTOR R633 NRSAO02J
23. 4 25 26 27 28 29 30 31 32 bo N 000 O N MDT 10 ON O O O QN 0 O ANAND 2 Pin Function Pin No Symbol yo Function 1 to 52 51 to S52 O Segment output pins used to display data transferred by serial data input 53 to 55 COM1 to COM3 O Common driver output pins The frame frequency is given by t0 fosc 384 Hz 56 VDD Power supply connection Provide a voltage of between 4 5 and 6 0V 57 INH Display turning off input pin TNT L Vss off S1 to S52 COM1 to COM3 L INT H VDD on Serial data can be transferred in display off mode 58 VDD1 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 59 VDD2 Used for applying the LCD drive 1 3 bias voltage externally Must be connected to VDD1 when a 1 2 bias drive scheme is used 60 Vss Power supply connection Connect to GND 61 OSC Oscillator connection An oscillator circuit is formed by connecting an external resistor and capacitor at this pin 62 CE Serial data CE Chip enable interface connection 63 CL to the controller CL Sync clock 64 DI DI Transfer data 1 24 TEA6320T X IC301 E volume 12 MUTE FUNCTION VOLUME 1 20 to 31 dB LOUDNESS KD S621 VOLUME 2 0 to 55 dB BALANCE FENDER REAR VOLUME 2 0 to 55 dB 1 Pin layout 2 Block diagram S
24. 542 543 551 552 561 562 563 564 C 565 C 566 C 567 C 568 571 C 572 C 573 574 C 576 C 577 C 579 C 701 C 702 C 703 C 709 C710 C711 C712 C713 C714 C715 C717 C718 C720 C 725 C 731 C 732 C 733 C 801 C 802 C 803 C 804 C 807 C 821 C 822 C 823 C 861 C 862 C 901 C 902 C 903 Parts number QEKJ1AM 107Z NCB31AK 224X NCB31EK 473X NDC31HJ 470X NCS31HJ 561X NCB31HK 223X NCB31HK 223X NCB31HK 102X NCB31HK 102X NCB31EK 223X NCB31HK 182X NCB31HK 122X NDC31HJ 680X QERF1CM 226Z NCB31HK 472X NCB31EK 333X QERF1AM 227Z NCB31EK 103X NCB31EK 103X NCB31EK 103X NCB31HK 102X NCB21CK 274X NCB31EK 104X NCB31AK 474X QERF1AM 107Z NCB31EK 103X NCB31EK 103X QEKJ1AM 107Z QERF1AM 227Z NCB31EK 103X NCB31HK 152X NCB31EK 104X NCB31HK 102X QERF1AM 476Z QEKJ1HM 104Z QERF1HM 104Z NCB31EK 223X NCB31EK 223X NCB31EK 103X QEKJ1HM 104Z NDC31HJ 101X NCB31HK 103X NDC31HJ 151X NCS31HJ 221X NCB31EK 223X QERF1AM 227Z NCB31EK 103X QERF1HM 225Z NCB31HK 102X QERF1AM 227Z QEKJOJM 227Z NCB31EK 103X NDC31HJ 220X NDC31HJ 330X QERF1CM 106Z NCB31EK 104X NCB31EK 104X NCB31EK 104X QEKJOJM 227Z NCB31EK 823X QEZ0337 228 NCB31HK 103X QEKJ1CM 226Z Parts name E CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR E CAPACITOR C CAPACITOR C CAPACITOR E CAPACITOR C CAPACITOR C
25. AM 107Z E CAPACITOR 100MF 20 10V Q792 2SA812 5 6 X TRANSISTOR C910 NCB31HK 103X C CAPACITOR Q793 DTC114EKA X TRANSISTOR C911 QERF1AM 227Z E CAPACITOR 220MF 20 10V Q861 DTA114EKA X DIGI TRANSISTOR C914 NCB31EK 104X C CAPACITOR Q902 25 1623 5 6 TRANSISTOR C915 NCB11CK 225X C CAPACITOR Q903 25 812 5 6 TRANSISTOR C916 QERF1HM 225Z E CAPACITOR 2 2MF 20 50V R101 NRSA63J 471X MG RESISTOR CJ321 QNNO170 001 PIN JACK REEL R102 NRSA63J 752X MG RESISTOR CJ701 QNBO100 002 ANT TERMINAL R151 NRSA63J 183X MG RESISTOR CN501 QGB2027M1 268 CONNECTOR 152 NRSA63J 123X MG RESISTOR CN801 VMC0334 001 CONNECTOR R153 NRSA63J 273X MG RESISTOR CN901 NZ0002 001 CONNECTOR R154 NRSA63J 223X MG RESISTOR D321 1SS254 T2 SI DIODE R155 NRSA63J 152X MG RESISTOR D332 1SS355 X DIODE R156 NRS181J 223x MG RESISTOR D333 155355 DIODE R201 NRSA63J 471X MG RESISTOR D551 DSK10C T1 DIODE R202 NRSA63J 752X MG RESISTOR D701 155254 2 SI DIODE 8251 NRSA63J 183X MG RESISTOR D702 155254 2 SI DIODE R252 NRSA63J 123X MG RESISTOR D731 MTZJ10B T2 Z DIODE R253 NRSA63J 273X MG RESISTOR D791 155355 DIODE R254 NRSA63J 223X MG RESISTOR D792 155355 DIODE R255 NRSA63J 152X MG RESISTOR D804 155254 2 SI DIODE R256 NRS181J 223X MG RESISTOR D810 155355 DIODE R301 NRSA63J 223X MG RESISTOR D821 UDZS6 2B X SI DIODE R302 NRSA63J 222X MG RESISTOR D822 00256 2 SI
26. ASSIS SIDE PANEL BOTTOM COVER INSULATOR SCREW SCREW SCREW SCREW SCREW FRONT CHASSIS LOCK LEVER TORSION SPRING RLS KNOB COMP SPRING BLIND FRONT PANEL FINDER ASSY PRESET BUTTON POWER BUTTON EJECT BUTTON D FUNC BUTTON SND FTN BUTTON PUSH BUTTON BUTTON UP DOWN BUTTON DETACH BUTTON COMP SPRING LIGHT LENS REAR COVER MINI SCREW LCD LCD CASE LCD LENS LENS CASE LIGHTING SHEET RUBBER CONNE NAME PLATE FUSE EARTH PLATE REAR BRACKET IC BRACKET HEAT SINK REGULATOR BKT SCREW SCREW SCREW TN CCD1001Z non 3 CHASSIS MECHA BKT 2 CHASSIS SIDE PANEL 3 CHASSIS REAR BKT CHASSIS MAIN PWB SIDE PANEL IC BKT sau mm 1 FOR LOCK LEVEL FM CD AM FOR DETACH BUTTON FRONT REAR FOR ANT LINE OUT 3 16P amp TR BRACK 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 4 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 KD S621 CD mechanism assembly and parts list Block No M B M M TN CCD1001Z 136J Grease G 31SA 2 3 Aa gt ee ta M ae TO 7 29 YI 0 BN O Sha 4 ef d G 31SA Bottom side RX 405 34 Parts list CD mechanism Block No MBMM KD S621 A Parts number Parsname Description area 1 2 3 4 5 6 7 8 9 10 11 12
27. C581 5 REST SW No disc FSO display TA2109 Focus Servo Loop ON e When the disc correctly rotates Microprocessor RF signal eye pattern commands 8A 586 A200 remains closed 5 pug 2 2v Tracking loop closed 9462 eye pattern Spindle ija motor 3 2V IC581 7 i I 2 Acceleration Servo i Servo CLV Sec 0 5 S 0 5 Jump to the first track Tracking Servo Loop ON RF signal A Rough Servo Mode O CLV Servo Mode SKA ProgramArea Lead In Area Digital 0 1 12 KD S621 Section YES N Is the voltage output at Is the wiring for IC521 Is 5V present at IC581 Check CD 9V IC521 pin 53 5V or OV 90 100 correct pin 11 and 5V YES YES Check the vicinity of IC521 YES Is 4V present at both Is 6V or 2V present at Check the feed motor sides of the feed motor IC581 5 and 6 connection wiring YES N O Check the feed motor Check IC581 Focus Section When the lens is Check the circuits in moving the vicinity 1 pins 15 18 YES Does the S search waveform appear at IC581 pins 17 and 18 Check the pickup and its connections E Spindle Section NO ls the disk rotated Is 4V present at IC581 Is 4V present at IC521 Check IC501 and pins 7 and 8 pin 55 YES YES YES Does the RF signal Check the vicinity of
28. CK D802 S 5 s 444 3j ds 4 FLOCK mo m 3 HIRE Oaa Oa Oa Oa Oa Oa O Om Oa Oa Omm O aa 2 2 PRIN i C803 D804 a 5 B zu Gell gi car my Lg MD als zzz ala amp J S GE SE SB ow Casa mag mn 3 3 a8 3 if 5 2 Sab 27k 1 50 H AIPPLE 159254 T2 8 a8 328 MDATA 0801 pat KG 8 8 EE 3 MEL ub 1220332690008 8 a 8 8 s B B d E a 8 B 3 I EON CD RCH ov 9 xour 6559 9 j ees PD 9 3 6 9 6 1 63 63 63 63 69 6 3 8 6 3 6G9 63 3 14 4y o GND 1 Ea 8 33 38 2 9 6 kso 5 Test amp 3 5 amp 8 CD LCH paos a co C33 404 a s s s 404 440 4 o 47 stosy SV DETACH 1k ov a WE C404 cos g 2 T 2 2 CN801 o GD Ke Doy lt E Do vcoss4oo P vss 045 obe S 5 5 9 ve 90 1 DET Ko FM osc AM osc 05 60 TURGI 8 8 8 E C331 2 ILLO 1 vdd am C802 8 8 2 3 UG 5 E 3 RSV SWE meg vaa 63 z aH cso 4 SVIOV
29. DA 1 32 SCL GND 2 31 VCC OUTLR 3 30 OUTRR OUTLF 4 29 OUTRF __ surety TL 5 28 TR B2L 6 27 B2R BIL 7 26 BIR ML 8 25 IVR ILL 9 24 ILR QSL 23 QSR IDL 22 IDR MUTE 21 Vref CD CH 20 ICR IMD 14 19 CAP IBL 5 18 IBR IAL f6 TUNER 17 IAR 3 Pin functions Functions BALANCE FENDER FRONT VOLUME 2 0 to 55dB BALANCE FENDER FRONT VOLUME 2 0 to 55dB BALANCE FENDER REAR Functions Serial data input output Input A right source Ground Input B right source output left rear Electronic filtering for supply output left front Input C right source input from an external equalizer Treble control capacitor left channel or Reference voltage 0 5Vcc output to an external equalizer Bass control capacitor left channel or Not used Bass control capacitor left channel Output source selector right channel Input volume 1 left control part Input loudness right channel Input loudness left control part Input volume 1 right control part Output source selector left channel Bass control capacitor right channel Not used Bass control capacitor right channel or output to an external equalizer Not used Treble control capacitor right channel or input from an external equalizer Input C left source Output right front Not used Output right rear Input B lef
30. DIODE R303 NRSA63J 473X MG RESISTOR D823 UDZS6 2B X SI DIODE R304 NRSA63J 473X MG RESISTOR D824 UDZS6 2B X SI DIODE R307 NRSA63J 273X MG RESISTOR D825 UDZS6 2B X SI DIODE R308 NRSA63J 273X MG RESISTOR D826 UDZS6 2B X SI DIODE R321 NRS181J 473x MG RESISTOR D827 00256 2 SI DIODE R322 NRS181J 471X MG RESISTOR D828 UDZS6 2B X SI DIODE R323 NRS181J 102x MG RESISTOR D861 MTZJ4 7B T2 Z DIODE R333 NRSA63J 102X MG RESISTOR D866 155355 DIODE R334 NRSAG3J 101X MG RESISTOR D867 1SS355 X DIODE R336 NRSA63J 222X MG RESISTOR D868 155355 DIODE R401 NRSA63J 223X MG RESISTOR D869 155355 DIODE R402 NRSA63J 222x MG RESISTOR D901 1 5401 15 DIODE R403 NRSA63J 473X MG RESISTOR D902 SB10 03A3 T2 SB DIODE R 404 NRSA63J 473X MG RESISTOR D903 155254 2 SI DIODE R407 NRSA63J 273X MG RESISTOR D904 0 03 SB DIODE R408 NRSA63J 273X MG RESISTOR 151 NJM4565M WE IC R433 NRSA63J 102X MG RESISTOR IC301 TEA6320T X IC R434 NRSA63J 101X MG RESISTOR C321 LA4743K IC R436 NRSA63J 222X MG RESISTOR AN8806SB W IC R501 NRS181J 220x MG RESISTOR IC541 LA6567H X IC R502 NRS181J 220x MG RESISTOR IC561 MN6627482WA IC R503 NRS181J 102x MG RESISTOR LC72366 9A73 IC R504 NRSA63J 392X MG RESISTOR 901 HA13164A IC R505 NRSA63J 224X MG RESISTOR L 501 QQL231K 4R7Y INDUCTOR R506 NRSA63J 223X MG RESISTOR L 561 QQL231K 4R7Y
31. G3 co LSI RESET Ca 2 808 R401 H 0 022 fu E CD RESET 5viov 5 BAD ELE E NG GD 27 1 Boe Boe 27k 1 50 RE 5 7 FM IF COUNT 0 Sex R321 47k 5 MDATA 5 wo ne GS goa ENE gt 7 MLD 5v 0307 py 10 16 2 2 470 5 ba SENS SO Gv 4725 3 M R811 3 3k sve NG P SAVE SD eu R834 22k 7 R323 9071 T KEYO 89 t LCD SO SCL R812 3 3k 22 50 5 5 8 sy A832 22k dk Hi lov 11 0 SDA 8 2 65 7 LCD CE SDA zx x xe a358 Suata NIS ky C327 D321 KEYO 20 5598 8 wis NOU 470509 1SS254 T2 3 t 25525255 8 55 BEBE KE 5 Qe 14 GND KEY2 3623636969 3688360 6 1 6263 636960 67 6869 696 16216362 818 215 DTC114EKA X 3 aja aay 8 88 Sas 1 o le x ng x ox ox xor ox E ss la i 4 5 5 8 2 5 8 gaglag les 101 1 I nre emori 8888383838338 IC801 ETE m 47k fes HA13164A ons 225 2 neat PAA Sep SI R807 47k e ot ans C902 Ts 3 alk cert LC72366 9A73 R814 47k ark ov t o 4 alk Lert FRONTI 1 5 REMOTE R815 47k 4 eS R826 AA 47k f COM 816 47k 1 ess R25 47k pov m C901 BFE 5 7K ace 8408 8238 2 R841 AA 47k 4 pm s e oxo D903 RF R842 RYE n 2 DD 4 lt 5 a
32. GND R605 R604 R603 R602 R601 12k 910 680 560 680 x 8 o D606 D610 9 1 DISP LOUD VOL o POWER 2 7 1 5 a ig pa Dis a5 m D601 oos 0611 pets Das R652 0941 R611 R610 R609 R608 R607 R606 KO PLeo2 TED 6 UP 2k to e 560 ao KY a 4 ces Lose pr 1 9 4 9 8 Gu 20608 or 0613 Bo 27 0 cD hue 5 be ES BO Ok AP SEL sgy DOWN R654 YY 10k o o o o o o 9 4 7 505 x be D 655 613 S612 9611 S610 S609 S608 S607 s 0614 7 LCD SCK nese Tok DISP 4 yon AM LCD SD Y ananepnponaaereas ne R617 R616 R615 R614 R613 R612 a 4 D642 188355 ugmoagonoogaougooo KEY 2 ge eleg e ele o eg s 1 5k 1 2k 910 680 560 680 iE 2 EIS s 8 D643 198955 CD FM AM DOWN son 6 18 tw o o R658 180k 620 S619 S618 S617 5616 5615 5614 C603 106321 SWITCH PWB GEB10037A LCD DRIVER FRONT CIRCUIT BOARD SECTION X NOTE K0 S585U KD S585U K0 S621E PL601 GLLOO33 003 0 PL602 056 001 0601 0612 LNJ308681 1 3 X D614 D619 61 SML 310VT JK X 0620 5601 0066 01 NOTI ES 1 VOLTAGES ARE DC MEASURED WITH A D
33. IGITAL VOLT METER WITHOUT INPUT SIGNAL 2 UNLESS OTHERWISE SPECIFIED 4 54 METAL GLAZE RESISTOR ALL CAPACITORS ARE 50V OR 25V CERAMIC CAPACITOR OHM ALL CAPACITANCE VALUES ARE IN uF P pF ALL E CAPACITORS ARE IN THE FORM OF CAPACITANCE uF RATED VOLTAGE V 3 2 KD S621 Exploded view of general assembly and parts list Block No gt 5 Sg 5 S 53 Parts list General assembly Block No M1MM KD S621 A item Parts number Partsname Description area O Q oo O O Q N 22 23 24 25 2 27 la 30 31 32 33 B 43 1029 404 3 FSMH3001 202 FSKM301 1 002 FSMA3004 203 QYSDST2604Z FSKZ4005 001 QYSDST2604Z QYSDST2606Z FSKZ4005 001 FSJC2013 013 FSKS3010 001 FSKW4005 003 FSXP3026 002 FSKW3002 015 FSPK3009 002 GE10037 001A GE30300 008A GE20119 001A GE30304 001A GE30305 001A GE20131 001A GE30307 001A GE20130 001A GE20118 001A GE20120 001A GE30306 001A FSKW3002 012 GE30117 001A GE10038 001A VKZ4777 001 QLD0210 002 GE30302 002A FSJK3035 001 FSKS3022 003 FSYH4078 002 QNZ0442 001 GE30348 002A QMFZ047 150 T VMA4652 001SS FSKM3010 020 FSKL4024 001 GE40104 001B GE40103 001A QYSDST2606Z QYSDSF3006Z 48 QYSDST2606Z CD MECHA TOP CH
34. INDUCTOR R507 NRSA63J 822X MG RESISTOR L562 QQL231K 4R7Y INDUCTOR R508 NRSAG3J 104X MG RESISTOR L 701 QQL231K 4R7Y INDUCTOR R509 NRSA63J 223X MG RESISTOR L 801 QQL231K 4R7Y INDUCTOR R510 NRSA63J 154X MG RESISTOR L 901 QQR0703 001 CHOKE COIL R511 NRSA63J 274X MG RESISTOR Q321 DTC114EKA X TRANSISTOR R512 NRSA63J 563X MG RESISTOR Q332 2SD1781K QR X TRANSISTOR R513 NRSA63J 563X MG RESISTOR Q432 2SD1781K QR X TRANSISTOR R514 NRSA63J 123X MG RESISTOR Q501 2SA1706 ST T TRANSISTOR R515 NRSAG3J 123X MG RESISTOR Q541 2SA1706 ST T TRANSISTOR R516 NRSA63J 123X MG RESISTOR 3 8 W Electrical parts list Main board Block No 01 KD S621 A Item R517 R518 R519 R541 R 542 R 543 R 544 R 545 R 546 R 547 R 548 R 549 R 550 R551 R 560 R561 R 562 R 563 R 564 R 567 R 568 R 569 R570 R571 R573 R574 R575 R576 R577 R579 R 580 R581 R701 R702 R703 R704 R705 R 708 R725 R731 R732 R733 R734 R791 R792 R793 R794 R795 R796 R797 R798 R799 R 801 R 803 R 804 R 805 R 807 R 808 R 809 R810 R811 R812 R813 Parts number NRSA63J 123X NRSA63J 822X NRSA63J 105X NRS181J 621X NRSA63J 432X NRSA63J 303X NRSA63J 332X NRSA63J 123X NRSA63J 563X NRSA63J 154X NRSA63J 432X NRSA63J 203X NRSA63J 682X NRSA63J 822X NRS181J 101X NRSA63J 102X NRSA63J 102X NRSA63J 102X NRSA63J 102X NRSA63J 102X NRSA63J 102X NRSA63J 102X NRSA63J 1
35. MONO FM mono selection 59 IFRQ AGC During FM auto search IF request output H after SD detected During AM suto search AGC output 60 MUTE Muting switch 61 LEVEL Level meter input 62 5 METER S meter input 63 KEY CHANGE Control to GND 64 KEY2 Key 2 input port 65 KEY1 Key 1 input port 66 KEYO Key O input port 67 P SAVE1 Power save 1 ACC power detection 68 SENSE Voltage sensor port 69 No use 70 FMIF COUNT FM frequency detecting 71 NC Nouse 72 NC Nouse 73 Vdd 5V power supply B 74 AM OSC Nouse 75 FM OSC FM limited signal input 76 VSS Ground port for power supply 77 NC No use 78 EO Error signal output port for PLL 79 TEST1 Test port for LSI To connect ground 80 XOUT O 4 5MHz crystal oscillator output 1 23 KD S621 LC75823W IC601 LCD driver 1 Pin Layout amp Symbol 850895 0 gt gt gt 4 DA 01 0 0 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 S1 0 1 48 0 S48 S2 0 2 47 0 S47 S3 0 3 46 ro S46 S4 0 4 45 ro S45 S5 075 44 0 4 S6 0 6 43 0 S43 S7 047 42 0 S42 S8 0 8 41 0 S41 S9 ot 9 40 0 S40 S10 0 10 39 o S39 5110 11 38 o S38 512 12 37 0 S37 513 04 13 36 o S36 514 0 14 35 o S35 S15 o1 15 34 o S34 S16 0 16 33 10 S33 17 18 19 20 21 22 23 2
36. Output for initial setting diode matrix 25 KS1 O Output for initial setting diode matrix 26 KSO O Output for initial setting diode matrix 27 DETACH Front panel detect 28 K2 Nouse 29 K1 Input for initial setting diode matrix 30 KO Input for initial setting diode matrix 31 Vdd 5V power supply port B 32 sw2 CD mechanism detect switch 33 CD LSI RESET O CD LSI reset 34 MCLK O CD LSI command clock signal 35 MDATA O CD LSI command data output 36 MLD O CD LSI command load signal 37 No use 38 No use 39 SCL O E volume clock output 40 SDA O E volume data output 1 22 LC72366 9A73 2 2 KD S621 Pin No Port Name Function 41 CD ON CD 8V supply on 42 RELAY 5V power contorl 43 BLKCK Sub code block clock signal output 44 BEEP Nouse 45 SW4 CD mechanism detect switch 46 SW1 CD mechanism detect switch 47 SW3 CD mechanism detect switch 48 REST CD pickup rest position 49 FLOCK Focus lock signal output Active Low 50 TLOCK Tracking lock signal output Active low 51 CD SENSE CDLSI sense signal 52 STATUS CD status signal 53 P SAVES2 power save 2 B detect 54 SD ST Station detection Stereo signal input H SD 55 REMOCON Remocon input 56 JBUSINT No use 57 BAND o FM AM band selection 58
37. appear at TP1 Check the spindle motor IC581 and its wiring YES NO Check the circuits in the vicinity of IC501 19 24 or the pickup Is the RF waveform at TP1 distorted YES Proceed to the Tracking section Tracking Section When the disc is rotated at first YES Check the circuit in the YES Check the pickup and vicinity of IC501 pins its connections 2 gt 12 Approx 1 2 V Is the tracking error signal output at IC501 12 YES Check IC521 KD S621 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 1 The level of RF output EFM output ampli tude of eye pattern will be low Is RF output 1 0 0 35Vp p 3 Semi fixed resistor on the APC PC board The semi fixed resistor on the APC printed circuit board which is attached to the pickup is used to adjust the laser power Since 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 t
38. hen replacing those parts make 9 2 POWER ALL E CAPACITORS ARE SHOWN IN THE FORM OF CAPACITANCE uF RATED VOLTAGE V sure to use the specified one R 094 ear signa A B C 2 2 D E F G CD servo amp control section LOADING MOTOR REST SW FEED MOTOR SPINDLE MOTOR swi swa swa swa MECHA BDL1089 001M Ao NA LOADING amp LOADINGT REST FEED FEED SPINDLE SPINDLEF ENG sna 2 CONNECTING PWB 3E 3 LOADING Z Z CLDCK biped 212 ala lt lt AM 9 385 333 100 1 8W CD RCH 8 Sis 919155 g FEED E E T 3 Feeo 63 gt FEED FEED 3 3 SPINDLE 25 E3 ERA m 2 1412 RESET SW FEED 25 25 FEED A 5 can SPINDLE SPINDLE 5 SPINDLE SPINDLE 23 23 REST REST n E n LOADING Gg z LOADING LOADING 5 LOADING 3 GND 19 19 5 TES Sw2 18 18 Sw2 ES a PE 3 3 5 aes san sms 7 TRACKING LD 15 15 LD 14 14 3 TBACKING TRACKING E TES s 8 4 TRACKING m iz TRACKING 272 FOCUS FOCUS sj o FOCUS hg Focus VREF 3 z jw MD VR Baj MD E 7 10 NG 6 6 NA VE NG 5 5 VA VE 4 4 Ya VB VA F
39. instruments required for adjustment 1 Digital oscilloscope 100MHz 2 AM Standard signal generator 3 FM Standard signal generator 4 Stereo modulator 5 Electric voltmeter 6 Digital tester 7 Tracking offset meter 8 Test Disc JVC CTS 1000 9 Extension cable for check EXTGS004 26P 1 E Standard measuring conditions Power supply voltage DC14 4V 10 5 16V Load impedance 4 2 Speakers connection Line out load impedance 20k Output Level Line out 2 0V Vol MAX E How to connect the extension cable for adjusting The cardboard is cut in a suitable size uses for the insulation stand of mechanism KD S621 Standard volume position Balance and Bass amp Treble volume Indication O Loudness OFF Frequency Band FM 87 5MHz 108 0MHz MW 522kHz 1620 kHz LW 144kHz 279kHz 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 working standard EXTGS004 26P KD S621 Flow of functional operation until TOC read Power ON Set Function to CD e When the pickup correctly moves When the laser diode correctly to the inner area of the disc emits oy Microprocessor 84 Microprocessor 83 8 825 81 Disc inserted commands commands FMO TC9462 53 77 HI Pickup feed to the inner area FEED MOTOR TERMINAL I
40. nal CH1 2 BTL Power supply It is short with VCC S VCC2 CH1 Input terminal CH1 Input terminal For gain adjustment CH2 Input terminal CH2 Input terminal For gain adjustment CH3 Input terminal 5CH VLO Signal output switch terminal FWD Input of logic of loading part 28 5CH VLO Signal output switch terminal REV Input of logic of loading part Frame FR at the center becomes system GND Please be short circuited on the outside and use the terminal of the power supply system and three teminals of VCC S VCC1 VCC2 KD S621 1 21 KD S621 LC72366 9A73 IC801 System CPU 1 Pin layout 25 24 1 80 40 41 64 65 2 Pin function Pin No Symbol Function 1 XIN Crystal oscillator input port 2 TEST2 Connect to ground 3 J BUS SI No use 4 J BUS SO No use 5 J BUS SCK No use 6 J BUS I O No use 7 SUBQ CD LSI subcode data input 8 Nouse 9 SQCK CD LSI subcode clock 10 RESET Micon reset pin 11 LCD SI No use 12 LCD SO O LCD driver data output 13 LCD SCK O LCD driver clock signal 14 LCD CE O LCD driver chip enable port 15 FM ILLUMI No use 16 AM ILLUMI No use 17 CD ILLUMI No use 18 DIMMER OUT No use 19 LMO O CD loading motor output 20 LM1 O CD loading motor output 21 Nouse 22 Nouse 23 Nouse 24 KS2 O
41. o Symbol Function 1 EXT Output voltage is VCC 1 V when M or H level applied to CTRL pin 2 ANT Output voltage is VCC 1 V when M or H level to CTRL pin and H level to ANT CTRL 3 ACC Connected to ACC 4 VDD Regular 5 7V 5 SW5V Output voltage is 5V when M or H level applies to CTRL pin 6 ACC5V Output for ACC detector 7 CTRL output OFF H ANT output ON 8 MEMORY Connected to VCC 9 BATT DET Low battery detect 10 9V Output voltage is 9V when M or H level applied to CTRL pin 11 CTRL L BIAS OFF M BIAS ON H CD ON 12 CD8V Output voltage is 8V when H level applied to CTRL pin 13 AJ Adjustment pin for ILM output voltage 14 ILMI Output voltage is 10V when M or H level applies to CTRL pin 15 GND Connected to GND KD S621 KD S621 AN8806SB W IC501 RF amp Servo amp 1 Pin layout PD 1 36 PDAC LD 2 35 PDBD LDON 3 34 PDF LDP 4 33 PDE VCC 5 32 PDER RF 6 31 PDFR RF OUT 7 30 TBAL RFIN 8 29 FBAL C AGC 9 28 EF ARF 10 27 EF OUT C ENV 11 26 TE C EA 12 25 TE OUT CS BDO 13 24 CROSS BDO 14 23 TE BPF CS BRT 15 22 VDET OFTR 16 21 LD OFF NRFDET 17 20 VREF GND 18 19 ENV 2 Block diagram 1 ENV CURCUIT 1 16 3 Pin function KD S621 AN8806SB W Pin No Symbol Function 1 PD APC amp Input terminal 2 LD O APC amp Output terminal 3 LD ON LD ON OFF con
42. o excessive current Replace it Replacement of laser pickup Turn off the power switch and disconnect the power cord from the ac outlet Replace the pickup with a normal one Refer to Pickup Removal on the previous page Plug the power cord in and turn the power on At this time check that the laser emits for about 3seconds and the objective lens moves up and down Note Do not observe the laser beam directly Play a disc Check the eye pattern at TP1 Description of major ICs HA13164A 1C901 Regulator 1 Pin layout 2 Block diagram O B C1 C2 100u 0 1u O ACC VCC 8 3 ACC 8 3 Eos BATT DET ANT OUT p s P 22 9 2 urge rotector O e Q T cu AD T EXT OUT T Y 2 gt O BIAS TSD YG compour C4 TI 0 77 VDDOUT CTRL L 4 0 O 7 gt roiroireolreolro C7 CTRL 0 6 9 gt ai So SW5VOUT CD OUT 4 5 PO O 2 lu 7 7 AUDIO OUT Z e E ILMOUT 00 49 9 0 ce TT 10u 9 13 DOR MAJ tt UNIT R Q C F 3 Pin function note1 TAB header of IC connected to GND Pin N
43. se an anti static wrist strap to release any static electricity built up in your body caption Anti static wrist strap Conductive material conductive sheet or iron plate 3 Handling the optical pickup 1 In order to maintain quality during transport and before installation both sides of the laser diode on the replacement optical pickup are shorted After replacement 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 part of the flexible cable using nippers etc after replacing the optical pickup For specific details refer to the replacement procedure in the text Remove the anti static pin when replacing the traverse unit Be careful not to take too long a time when attaching it to the connector 3 Handle the flexible cable carefully as it may break when subjected to strong force 4 It is not possible to adjust the semi fixed resistor that adjusts the laser power Do not turn it Damper bracket CD mechanism ass y Attention when traverse unit is decomposed Please refer to Disassembly method in the text for pick up and how to detach the substrate
44. t source Supply voltage Input A left source Serial clock input 1 25 KD S621 E NJM4565M WE 1C151 Ope amp A OUTPUT 8 v A INPUT B OUTPUT B INPUT 1 26 Block REST REST SWITCH LOADING LOADING MOTOR FEED FEED MOTOR SPINDLE SPINDLE MOTOR 4 5 1 PICK UP A B C LD MD COM1 COM2 COM3 S1 S48 diagram KD S621 CJ701 ANT 9 1 E F TRACKING FOCUS 5601 S620 REMOCON KEY MATRIX REMOCON IC601 LCD LCD CLK LCD SO DRIVER LCD LE TU LCH TU RCH KAG RRO LMO LM1 MONO FM AM LOADING EQ FM OSC SPINDLE TRACKING SERVO STATUE S METER FOCUS BTL TRV TVD ECM ECS SUBQ SQCK SDIST DRIVER KICKTRDFOD BLKCK TLOCK SDA OUT LF FLOCK MLD SCL UE iE MDATA MCLK OUT AR IC801 VA VB VC IC501 MICON VE VEMD LD TBAL CD LCH VEVEMD LD RF AMP eo REG FBAL CD LCH FE TE CD RCH TRCRS LF VDET LDON LR ARF RR BDO OFTR RFDET RFENV EACH BLOCK SPK BATTERY z D E F G CJ302 LINE OUT 2 1 KD S621 KD S621 Standard schematic diagrams B Main amp section TUNER SECTION
45. trol terminal 4 LDP Connect to GND 5 VCC Power supply 6 RF RF amp Reversing input terminal 7 RF OUT RFamp Output terminal 8 RF IN AGC input terminal 9 C AGC IJO AGC loop filter connection terminal 10 ARF O ARF output terminal 11 C ENV RF detection capacity connection terminal 12 C EA I O HPF amp capacity connection terminal 13 CS BDO Capacity connection terminal for RF discernment side envelope detection 14 BDO O BDO output terminal 15 CS BRT O Capacity connection terminal for RF discernment side envelope detection 16 OFTR O OFTR output terminal 17 NRFDET O RFDET output terminal 18 GND Connect to GND 19 ENV O 3TENV output terminal 20 VREF O VREF output terminal 21 LD OFF APC OFF control terminal 22 VDET O VDET output terminal 23 TE BPF VDET input terminal 24 CROSS O CROSS output terminal 25 TEOUT O TE amp Output terminal 26 TE FE amp Reversing input terminal 27 FE OUT O FE amp output terminal 28 FE FE amp Reversing input terminal 29 FBAL F BAL control terminal 30 TBAL T BAL control terminal 31 PDFR MO I V amp conversion resistance adjustment terminal 32 PDER I V amp conversion resistance adjustment terminal 33 PDF l V amp input terminal 34 PDE I V amp input terminal 35 PD BD I V amp input terminal 36 PD AC l V amp input terminal KD S621 474 321
46. v ge AR a 9 X RIGHT FRONTI 47k A x x lt lx S 8 zo pnm 5 0901 d 10 to X RIGHT reant sese lag S25 B d iE ss ri taqe Bosse 9 83 a 2SC2412K R X LF 12 fel LEFT FRONTI R907 8 13 13 39k 8 xa 14 burn sad al i gt 9 za LV 8 16 ie x x ov 8 0 17 o 4 3 sse 4 071 A BSS gi 9 8 8 5 9 lt 2 gt rr 2 25 lt QMFZ047 150 T 83 S 5 5 5 5 g 7 1 3 C916 R902 22150 TK MAIN GEB10026A l n m m n nTN x s Y mm TTE mana eus 102 8502 7 5 7 5 gt Signal 0801 INIT 1 VOLTAGE ARE DC MEASURED WITH A DIGITAL n Ose d VOLTMETER WITHOUT INPUT SIGNAL CONDITION DTC414EKA X 0802 0803 0805 NOT USED NoT USED FMIC AM MODE CD MODE ok Ta Ge 0713 0715 wor USED USED 2 UNLESS OTHERWISE SPECIFIED T CD signal A702 R704 A 150 ALL RESISTOR ARE 1 16W S5XMETAL GLAZE RESISTOR A P75 m ALL CAPACITOR ARE SOV OR 25V CERAMIC CAPACOTOR Parts are safety assurance parts Front si C716 NOT USED NOT USED ALL RESISTANCE VALUES ARE IN OHM H ron SI nai ma a Gu W

KD-S621

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