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JVC KD-S50 Service Manual

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Download this manual See also: Instruction Manual
QQ
3 7 63 1515 0
SERVICE MANUAL
TE
L 13942296513
Contents
Safety precaution
Preventing static electricity
Disassembly method
Adjustment method
www
.
http://www.xiaoyu163.com
CD RECEIVER
KD-S50
160W
x
ao
u163
y
i
COPYRIGHT
2001 VICTOR COMPANY OF JAPAN, LTD.
http://www.xiaoyu163.com
2 9
8
KD-S50
Q Q
3
6 7
1 3
1 5
1-2
Flow of functional
1-3
operation unit TOC read
1-5
Maintenance of laser pickup
1-12
Replacement of laser pickup
Description of major ICs
co
.
KD-S50
9 4
2 8
0 5
8
2 9
9 4
2 8
COMPACT
DIGITAL AUDIO
Area Suffix
Northern America
J ----
1-13
1-14
1-14
1-15
m
9 9
9 9
No.49657
Nov. 2001

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Summary of Contents for JVC KD-S50

  • Page 1 KD-S50 3 7 63 1515 0 SERVICE MANUAL CD RECEIVER KD-S50 160W KD-S50 L 13942296513 COMPACT DIGITAL AUDIO Area Suffix Northern America J ---- Contents Safety precaution Flow of functional Preventing static electricity operation unit TOC read 1-13 Disassembly method...

  • Page 2: Safety Precaution

    KD-S50 3 7 63 1515 0 Safety precaution Burrs formed during molding may be left over on some parts of the chassis. Therefore, pay attention to such burrs in the case of preforming repair of this system. Please use enough caution not to see the beam directly or touch it in case of an adjustment or operation check.
  • Page 3 KD-S50 3 7 63 1515 0 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 KD-S50 3 7 63 1515 0 < M E M O > L 13942296513 u163 http://www.xiaoyu163.com...

  • Page 5: Disassembly Method

    KD-S50 3 7 63 1515 0 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...
  • Page 6 KD-S50 3 7 63 1515 0 Removing the heat sink (See Fig.4) Remove the three screws A1, A2 and A on the left side of the body. ATTENTION: Stop the screw in the order of A1, A2 and A.
  • Page 7 KD-S50 3 7 63 1515 0 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 four screws B and the three screws C attaching the rear bracket on the back of the body.
  • Page 8 KD-S50 3 7 63 1515 0 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 F attaching the rear cover on the back of the front panel assembly.

  • Page 9: Cd Mechanism Section

    KD-S50 3 7 63 1515 0 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 10 KD-S50 3 7 63 1515 0 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).
  • Page 11 KD-S50 3 7 63 1515 0 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.

  • Page 12: Adjustment Method

    FM 87.5MHz ~ 107.9MHz 6. Digital tester MW 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 13 KD-S50 3 7 63 1515 0 Flow of Functional Operation Until TOC Read Check Point Slider turns REST Power Key Power ON Check that the voltage at the pin22 SW ON. of CN501 is 0V (a moment)? Automatic tuning...
  • Page 14 KD-S50 3 7 63 1515 0 Maintenance of laser pickup (1) Cleaning the pick up lens Befor you replace the pick up, please try to clean the lens with a alcohol soaked cotton swab. (2) Life of the laser diode (Fig.1) When the life of the laser diode has expired, the following symptoms wil appear.

  • Page 15: Description Of Major Ics

    KD-S50 3 7 63 1515 0 Description of major ICs HA13164A (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...
  • Page 16 KD-S50 3 7 63 1515 0 LC72366-9A64(IC801) : System CPU 1. Pin terminal 2. Pin function Function Symbol Pin No. 4.5MHz crystal oscillation TEST2 Connect to ground Non connected Non connected Non connected Non connected SUBQ CD LSI subcode data input...
  • Page 17 KD-S50 3 7 63 1515 0 LC72366-9A64 Function Symbol Pin No. CD ON CD 8V supply on ("H"*8V,"_":0V) RELAY 5V power control BLKCK Output (L) BEEP Output (L) CD mechanism switch 4 CD mechanism switch 1 CD mechanism switch 3...
  • Page 18 KD-S50 3 7 63 1515 0 MN6627482WA (IC561) : Digital servo & Digital signal processer D/A converter 1. Pin layout 20 ~ 41 ~ 2.Block diagram AVSS1 LRCKIN(MSEL) 8TIMES AVDD1 BCLK(SSEL) DIGITAL OVER SAMPUNC OUTR SRDATAIN DEEMPHSIS 1BIT DIGITAL FILTER...
  • Page 19 KD-S50 3 7 63 1515 0 3. Pin function MN6627482WA 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 DVDD1 Power supply (Digital)
  • Page 20 KD-S50 3 7 63 1515 0 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 L 13942296513 V02+ VREF-IN 5VREG(PNPTr...
  • Page 21 KD-S50 3 7 63 1515 0 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+...
  • Page 22 KD-S50 3 7 63 1515 0 AN8806SB-W (IC501) : RF&Servo amp. 1.Pin layout PDAC PDBD LDON PDER PDFR TBAL RF OUT FBAL RF IN C.AGC EF OUT C.ENV TE OUT C.EA CROSS CS BDO TE BPF VDET CS BRT...
  • Page 23 KD-S50 3 7 63 1515 0 3. Pin function AN8806SB-W Pin No. Symbol Description APC amp input terminal APC amp output terminal LD ON APC ON/OFF control terminal Connect to ground Power supply Inverse input pin for RF amp...
  • Page 24 KD-S50 3 7 63 1515 0 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 25 KD-S50 3 7 63 1515 0 TEA6320T-X(IC301) : E.volume 1.Terminal Layout 2.Block Diagram VOLUME 2 MUTE 0 to 55 dB FUNCTION OUTRR BALANCE OUTLR ZERO CROSS FENDER REAR POWER DETECTOR OUTRF OUTLF SUPPLY VOLUME 1 BASS TREBLE +20 to -31 dB...
  • Page 26 KD-S50 3 7 63 1515 0 HA13158A (IC321) : Power amp 1. Pin layout 2. Block diagram PVCC2 PVCC1 INVCC STBY INPUTBUFFER1 AMP1 INPUTBUFFER2 AMP2 INPUTBUFFER3 AMP3 L 13942296513 INPUTBUFFER4 AMP4 MUTE PROTECTOR (ASO SURGE, TSD) NJM4565M-WE (IC151) : Ope. amp...
  • Page 27 KD-S50 3 7 63 1515 0 L 13942296513 u163 VICTOR COMPANY OF JAPAN, LIMITED MOBILE ERECTRONICS DIVISIOIN PERSONAL & MOBILE NETWORK BUSINESS UNIT. 10-1,1Chome,Ohwatari-machi,Maebashi-city,Japan (No.49657 200111 http://www.xiaoyu163.com...
  • Page 28 KD-S50 3 7 6 3 1 5 1 5 0 TU701 REAR LCH FRONT LCH FM/AM ANT. TUNER FRONT LCH IC321 REAR LCH IC301 POWER AMP E.VOLUME MONO FRONT RCH REAR RCH SD/ST S.METER REAR RCH FRONT RCH SDL,SCL...
  • Page 29 KD-S50 3 7 63 1515 0 < M E M O > L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 30 KD-S50 3 7 6 3 1 5 1 5 0 Standard schematic diagrams Main amp. section TU701 QAU0257-001 CJ701 QNB0100-002 L701 Q861 DTA114EKA-X 4.7u MUTE R201 2.7k R703 R101 2.7k R701 R333 R334 MUTE.CONT D332 R336 Q332 2SD1048/6-7/-X 2.2k...
  • Page 31 KD-S50 KD-S50 3 7 6 3 1 5 1 5 0 CD servo & control section D551 DSK10C-T1 REST IC561 C543 C541 MN6627482WA 0.033 22/16 Q541 2SA1706/ST/-T CD8V CD.RESET STATUS SUBQ IC541 KICK LA6567H-X SQCK TLOCK FLOCK FBAL C574 CD.SENSE...
  • Page 32 KD-S50 3 7 6 3 1 5 1 5 0 LCD & key control section C611 C612 0.012 4.7/6.3 R661 CJ601 VMC0335-001 IC602 LCD1 RPM6938-SV4 ILL10V REMOCON LCD_CLK LCD_SO LCD_CE KEY0 KEY1 1 3 9 4 2 2 9 6 5 1 3...
  • Page 33 KD-S50 Printed circuit boards 3 7 63 1515 0 Main board C901 L901 D869 R862 D904 CJ321 D867 R861 IC901 D861 R907 C915 D903 C328 R911 C902 D901 Q903 C913 B353 D902 C914 C905 C906 C910 B352 C303 C909...
  • Page 34 KD-S50 3 7 63 1515 0 LCD & key control board (Reverse side) (Forward side) S603 S602 R641 S607 R606 R601 R631 R604 R605 L 13942296513 S618 R652 R633 R632 u163 http://www.xiaoyu163.com...
  • Page 35 KD-S50 3 7 63 1515 0 PARTS LIST [ KD-S50 ] * All printed circuit boards and its assemblies are not available as service parts. Area suffix J -------------- Northern America L 13942296513 - Contents - 3- 2 Exploded view of general assembly and parts list (Block No.M1) 3- 4 CD mechanism assembly and parts list (Block No.MB)
  • Page 36 KD-S50 3 7 63 1515 0 Exploded view of general assembly and parts list Block No. L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 37 KD-S50 3 7 63 1515 0 Parts list (General) Block No. M1MM Item Description Parts number Parts name Q'ty Area --------------- CD MECHA FSJC1029-021 TOP CHASSIS FSMH3001-002 HEAT SINK FSKM3011-002 BOTTOM COVER FSMA3004-003 INSULATOR QYSDST2604Z SCREW 3 CHASSIS+MECHA BKT...
  • Page 38 KD-S50 3 7 63 1515 0 CD mechanism assembly and parts list Block No. Grease TN-CCD1001Z-136J G-31SA G-31SA(Bottom side) RX-405 L 13942296513 u163 106 29 http://www.xiaoyu163.com...
  • Page 39 KD-S50 3 7 63 1515 0 Parts list (CD mechanism) Block No. MBMM Item Description Parts number Parts name Q'ty Area 30310101T FRAME 30310103T DANPER PIN 30310107T UPPER PLATE 30310108T SEL STOP PLATE 30310142T SEL ARM (L)L SEL ARM (R)L...
  • Page 40 KD-S50 3 7 63 1515 0 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 30311105T SOPPORT PLATE 30311138T GR MT BLK(N) 30311109T LDG GEAR (2)
  • Page 41 KD-S50 3 7 63 1515 0 Electrical parts list (Main board) Block No. 01 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area C 101 QERF1HM-105Z E CAPACITOR 1.0MF 20% 50V C 518 NCB31AK-224X...
  • Page 42 KD-S50 3 7 63 1515 0 Electrical parts list (Main board) Block No. 01 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area C 907 NCB31HK-103X C CAPACITOR R 102 NRSA63J-512X MG RESISTOR C 908...
  • Page 43 KD-S50 3 7 63 1515 0 Electrical parts list (Main board) Block No. 01 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area R 563 NRSA63J-102X MG RESISTOR R 835 NRS181J-472X MG RESISTOR R 564...
  • Page 44 KD-S50 3 7 63 1515 0 Electrical parts list (Front board) Block No. 02 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area C 601 NCB21HK-223X C CAPACITOR R 655 NRSA63J-103X MG RESISTOR C 602...
  • Page 45 KD-S50 3 7 63 1515 0 < M E M O > L 13942296513 u163 3-11 http://www.xiaoyu163.com...
  • Page 46 KD-S50 3 7 63 1515 0 Packing materials and accessories parts list Block No. Block No. A1~A9 L 13942296513 A10~A14 u163 3-12 http://www.xiaoyu163.com...
  • Page 47 KD-S50 3 7 63 1515 0 Parts list (Packing) Block No. M3MM Item Description Parts number Parts name Q'ty Area FSPG4002-001 POLY BAG 1 INST.BOOK QPA00801205 POLY BAG 1 KIT QPC03004315P POLY BAG 1 SET VPE4005-007 POLY BAG GE30406-036A...