JVC KD-S6250 Service Manual

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Instructions manual (28 pages)

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Page 1 KD-S6250/KD-S580 SERVICE MANUAL CD RECEIVER KD-S6250 / KD-S580 KD-S6250 DIRECT TRACK ACCESS KD-S6250 MODE KD-S580 DIRECT TRACK ACCESS KD-S580 MODE Area Suffix J ------ Northern America Difference point Remocon Color KD-S6250 Silver Metallic gray KD-S580 Contents Safety precaution Flow of functional...
Page 2: Disassembly Method
KD-S6250/KD-S580 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 3: Removing The Bottom Cover
KD-S6250/KD-S580 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 4: Removing The Mainboard
KD-S6250/KD-S580 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 5 KD-S6250/KD-S580 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(KD-S625)or nine(KD-S580) joints Rear cover c with the front panel and the rear cover.
Page 6 KD-S6250/KD-S580 Damper bracket Removing the CD mechanism control CD mechanism ass’y 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).
Page 7 KD-S6250/KD-S580 Removing the loading motor Loading motor (See Fig.3 to 5) Prior to performing the following procedure, remove the CD mechanism control board. Belt Remove the two springs k attaching the CD mechanism ass’y and the front bracket. Fig.5 Remove the two screws G and the front bracket while pulling the flame outward.
Page 8: Removing The Pickup Unit
KD-S6250/KD-S580 Removing the feed motor ass’y Part n FD screw (See Fig.10) Feed motor ass’y Prior to performing the following procedure, remove the CD mechanism control board, the front bracket Part O (loading motor) and the CD mechanism ass’y. Remove the two screws K and the feed motor ass’y.
Page 9: Adjustment Method
FM 87.5MHz ~ 107.9MHz 6. Digital tester AM 530kHz ~ 1710 kHz 7. Tracking offset meter 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 10: Flow Of Functional Operation Until Toc Read
KD-S6250/KD-S580 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 11: Feed Section
KD-S6250/KD-S580 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 12: Maintenance Of Laser Pickup
KD-S6250/KD-S580 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 13: Description Of Major Ics
KD-S6250/KD-S580 Description of major ICs 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...
Page 14 KD-S6250/KD-S580 AN8806SB-W (IC501) : RF & Servo amp. 1.Pin layout 36 PDAC PD 1 35 PDBD LD 2 34 PDF LDON 3 33 PDE LDP 4 VCC 5 32 PDER RF- 6 31 PDFR RF OUT 7 30 TBAL 29 FBAL...
Page 15 KD-S6250/KD-S580 3. Pin function AN8806SB-W 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...
Page 16 KD-S6250/KD-S580 LA4743K(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 Switch...
Page 17 KD-S6250/KD-S580 2.Terminal layout 3.Pin function LA4743K Pin No. Symbol Function Header of IC Power GND Outpur(-) for front Rch OUTRR- STBY Stand by input OUTRR+ Output (+) for front Rch VCC1/2 Power input OUTRF- Output (-) for rear Rch Power GND...
Page 18 KD-S6250/KD-S580 LA6567H-X(IC581):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 V02+ VREF-IN 5VREG(PNPTr The outside putting) V02- REG-OUT V01+ REG-IN V01-...
Page 19 KD-S6250/KD-S580 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 20 KD-S6250/KD-S580 LC72366-9A73 (IC801) : System CPU 1. Pin layout 2. Pin function Pin No. Symbol Function Crystal oscillator input port Connect to ground TEST2 J-BUS SI No use J-BUS SO No use No use J-BUS SCK No use J-BUS I/O...
Page 21 KD-S6250/KD-S580 LC72366-9A73(2/2) Pin No. Port Name Function CD 8V supply on CD ON 5V power contorl RELAY Sub-code/block/clock signal output BLKCK No use BEEP CD mechanism detect switch CD mechanism detect switch CD mechanism detect switch CD pickup rest position...
Page 22: Block Diagram
KD-S6250/KD-S580 Block diagram CJ701 TU701 CJ302 TU.LCH FM/AM LINE OUT TU.RCH TUNER REST REST FM/AM MONO SWITCH LOADING FM.OSC SPINDLE IC321 IC301 IC541 CD,SENSE IC561 FEED POWER CD,RESET E.VOL LOADING SERVO LOADING LOADING TRACKING S.METER STATUS MOTOR FOCUS & SD/ST...
Page 23: Standard Schematic Diagrams
KD-S6250/KD-S580 KD-S6250/KD-S580 Standard schematic diagrams Main amp section TU701 QAU0257-001 CJ701 QNB0100-002 L701 Q861 DTA114EKA-X 4.7u MUTE R201 R703 R101 R701 R333 R334 D332 R336 Q332 2SD1781K/QR/-X 2.2k Q791 1SS355-X 2SB1197K/QR/-X R731 R702 R704 D333 R436 Q432 1.5k R791 2.2k...
Page 24 KD-S6250/KD-S580 CD servo & control section D551 DSK10C-T1 REST C543 C541 0.033 22/16 IC561 Q541 2SA1706/ST/-T MN6627482WA CD8V CD.RESET STATUS IC541 SUBQ LA6557H-X SQCK KICK TLOCK FLOCK C574 FBAL CD.SENSE TBAL 0.01 R550 C573 MDATA 6.8k RFENV VDET 220/6.3 MCLK...
Page 25 KD-S6250/KD-S580 KD-S6250/KD-S580 LCD & key control section IC602 RPM6938-SV4 4.7/6.3 C612 C611 0.012 UDZS5.1B-X CJ601 D644 VMC0355-001 LCD1 R661 QLD0210-002 ILL-10V REMOCON LCD.SCK IC601 LCD.SD LC75823W LCD.CE KEY0 KEY1 KEY2 R605 R604 R603 R602 R601 KEY0 1.2k COM1 R651 COM2 2.2k...
Page 26 Block No. M1MM Item Description Parts number Parts name Q'ty Area ------------ CD MECHA 1 TN-CCD1001Z FSJC1029-401 TOP CHASSIS SIDE PANEL 1 KD-S6250 FSMH3001-204 FSMH3001-202 SIDE PANEL 1 KD-S580 FSKM3011-002 BOTTOM COVER FSMA3004-203 INSULATOR QYSDST2604Z SCREW 3 CHASSIS+MECHA BKT FSKZ4005-001...
Page 27 KD-S6250/KD-S580 Parts list (General assembly) Block No. M1MM Item Description Parts number Parts name Q'ty Area VMA4652-001SS EARTH PLATE FSKM3010-020 REAR BRACKET IC BRACKET 1 FOR 45W IC FSKL4024-001 GE40104-001B HEAT SINK GE40103-001A REG BRACKET QYSDST2606Z SCREW 1 FOR ANT...
Page 28: Cd Mechanism Assembly And Parts List
KD-S6250/KD-S580 CD mechanism assembly and parts list Block No. Grease TN-CCD1001Z-136J G-31SA G-31SA(Bottom side) RX-405 106 29...
Page 29 KD-S6250/KD-S580 Parts list (CD mechanism) Block No. MBMM Item Description Parts number Parts name Q'ty Area 30310101T FRAME 30310103T DANPER PIN UPPER PLATE 30310107T 30310108T SEL STOP PLATE 30310142T SEL ARM (L)L 30310143T SEL ARM (R)L 30310145T S ARM SPRING(L)
Page 30: Parts List (Cd Mechanism)
KD-S6250/KD-S580 Parts list (CD mechanism) Block No. MBMM Item Description Parts number Parts name Q'ty Area 64180403T DET SWITCH 2 ESE22MH3 68150232T CONNECTOR 1 TKC-W26X-C1 SOPPORT PLATE 30311105T 30311138T GR MT BLK(N) 30311109T LDG GEAR (2) 30311110T LDG GEAR (3)
Page 31 KD-S6250/KD-S580 Electrical parts list (Main board) Block No. 01 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area C 101 QERF1HM-105Z E CAPACITOR 1.0MF 20% 50V C 516 QEKJ1AM-107Z E CAPACITOR 100MF 20% 10V C 151...
Page 32 KD-S6250/KD-S580 Electrical parts list (Main board) Block No. 01 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area C 906 NCB31EK-104X C CAPACITOR Q 731 2SC1623/5-6/-X SI TRANSISTOR KD-S580 C 907 NCB31HK-103X C CAPACITOR Q 732...
Page 33 KD-S6250/KD-S580 Electrical parts list (Main board) Block No. 01 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area R 515 NRSA63J-123X MG RESISTOR R 812 NRSA63J-332X MG RESISTOR R 516 NRSA63J-123X MG RESISTOR R 813...
Page 34 KD-S6250/KD-S580 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 R 642 NRSA02J-681X MG RESISTOR C 602 NCS31HJ-681X C CAPACITOR R 643...
Page 35: Packing Materials And Accessories Parts List
KD-S6250/KD-S580 Packing materials and accessories parts list Block No. Block No. A1~A8 A19, A20 KIT : A9~A13 3-12...
Page 36: Block No. M3Mm
1 FOR HARD CASE QPA01003003 FSYH4036-068 SHEET QPC03004315P POLY BAG 1 FOR SET GE30407-013A PACKING CASE 1 KD-S580 GE30407-012A PACKING CASE 1 KD-S6250 GE10036-001A EPS CUSHION Parts list (Accessories) Block No. M5MM Item Parts number Parts name Q'ty Description Area GET0064-001A...
Page 37 KD-S6250/KD-S580 VICTOR COMPANY OF JAPAN, LIMITED MOBILE ELECTRONICS DIVISION PERSONAL & MOBILE NETWORK BUSINESS UNIT. 10-1,1Chome,Ohwatari-machi,Maebashi-city,371-8543,Japan 200112 (No.49666)

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JVC KD-S6250 Service Manual

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