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JVC KD-S21 Service Manual

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3 7 63 1515 0
SERVICE MANUAL
1
2005
MA118
TE
L 13942296513
1
PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
3
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
4
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24
5
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25
www
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http://www.xiaoyu163.com
CD RECEIVER
KD-S21

TABLE OF CONTENTS

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COPYRIGHT © 2005 Victor Company of Japan, Limited
http://www.xiaoyu163.com
2 9
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1 3
1 5
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9 4
2 8
Area suffix
J --------------- Northern America
0 5
8
2 9
9 4
2 8
m
No.MA118
9 9
9 9
2005/1

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  • Page 1: Table Of Contents

    3 7 63 1515 0 SERVICE MANUAL CD RECEIVER MA118 2005 KD-S21 Area suffix J --------------- Northern America L 13942296513 TABLE OF CONTENTS PRECAUTIONS ............... 1-3 SPECIFIC SERVICE INSTRUCTIONS .
  • Page 2 http://www.xiaoyu163.com 3 7 63 1515 0 SPECIFICATION AUDIO AMPLIFIER SECTION 17 W RMS × 4 Channels at 4 Ω and [< or =] 1% THD+N Power Output 80 dBA (reference: 1 W into 4 Ω) Signal to Noise Ratio 4 Ω (4 Ω to 8 Ω allowance) Load Impedance Tone Control Range Bass...

  • Page 3: Precautions

    http://www.xiaoyu163.com SECTION 1 3 7 63 1515 0 PRECAUTIONS Safety Precautions 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 4 http://www.xiaoyu163.com Preventing static electricity 3 7 63 1515 0 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. 1.2.1 Grounding to prevent damage by static electricity Static electricity in the work area can destroy the optical pickup (laser diode) in devices such as CD players.

  • Page 5: Specific Service Instructions

    http://www.xiaoyu163.com SECTION 2 3 7 63 1515 0 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS. L 13942296513 u163 (No.MA118)1-5 http://www.xiaoyu163.com...

  • Page 6: Disassembly

    http://www.xiaoyu163.com SECTION 3 3 7 63 1515 0 DISASSEMBLY Main body section 3.1.1 Removing the front panel assembly (See Fig.1) (1) Push the detach button in the lower right part of the front panel assembly and remove the front panel assembly. Front panel assembly Detach button Fig.1...
  • Page 7 http://www.xiaoyu163.com 3.1.4 Removing the side panel 3 7 63 1515 0 (See Fig.4) Reference: Remove the front panel assembly as required. (1) Remove the screw B and two screws C attaching the side panel on the left side of the main body. (2) Remove the side panel from the main body.
  • Page 8 http://www.xiaoyu163.com 3.1.7 Removing the CD mechanism assembly 3 7 63 1515 0 (See Fig. 7) • Remove the front panel assembly, bottom cover, side panel, rear bracket and main board. Reference: Remove the front chassis assembly as required. (1) Remove the three screws H attaching the CD mechanism assembly on the top chassis.
  • Page 9 http://www.xiaoyu163.com CD Mechanism Assembly 3 7 63 1515 0 3.2.1 Removing the top cover (See Figs.1 and 2) (1) Remove the two screws A on the both side of the body. (2) Lift the front side of the top cover and move the top cover backward to release the two joints a.
  • Page 10 http://www.xiaoyu163.com 3.2.2 Removing the connector board 3 7 63 1515 0 Wires (See Figs.3 to 5) CAUTION: Before disconnecting the flexible wire from the pickup, solder the short-circuit point on the pickup. No observance of this in- struction may cause damage of the pickup. (1) Remove the screw B fixing the connector board.
  • Page 11 http://www.xiaoyu163.com 3.2.3 Removing the DET switch 3 7 63 1515 0 (See Figs.6 and 7) (1) Extend the two tabs c of the feed sw. holder and pull out the switch. (2) Unsolder the DET switch wire if necessary. DET switch Connector board Pickup...
  • Page 12 http://www.xiaoyu163.com 3.2.4 Removing the chassis unit 3 7 63 1515 0 (See Figs.8 and 9) • Prior to performing the following procedure, remove the top Chassis unit cover and connector board. Suspension spring (L) Suspension spring (R) (1) Remove the two suspension springs (L) and (R) attaching the chassis unit to the frame.
  • Page 13 http://www.xiaoyu163.com 3.2.5 Removing the clamper assembly 3 7 63 1515 0 (See Figs.10 and 11) • Prior to performing the following procedure, remove the top cover. (1) Remove the clamper arm spring. Clamper arm (2) Move the clamper assembly in the direction of the arrow to spring release the two joints d.
  • Page 14 http://www.xiaoyu163.com 3.2.6 Removing the loading / feed motor assembly 3 7 63 1515 0 (See Figs.12 and 13) • Prior to performing the following procedure, remove the top cover, connector board and chassis unit. (1) Remove the screw C and move the loading / feed motor assembly in the direction of the arrow to remove it from the chassis rivet assembly.
  • Page 15 http://www.xiaoyu163.com 3.2.7 Removing the pickup unit 3 7 63 1515 0 Pickup unit (See Figs.14 to 18) • Prior to performing the following procedure, remove the top cover, connector board and chassis unit. (1) Remove the screw D and pull out the pu. shaft holder from the pu.
  • Page 16 http://www.xiaoyu163.com 3.2.9 Removing the trigger arm 3 7 63 1515 0 Joint k (See Figs.19 and 20) • Prior to performing the following procedure, remove the top cover, connector board and clamper unit. (1) Turn the trigger arm in the direction of the arrow to release Trigger arm the joint k and pull out upward.
  • Page 17 http://www.xiaoyu163.com 3.2.11 Removing the mode sw. / select lock arm 3 7 63 1515 0 Link plate Joint t (See Figs.22 and 23) Mode sw. • Prior to performing the following procedure, remove the top plate assembly. Select lock arm (1) Bring up the mode sw.
  • Page 18 http://www.xiaoyu163.com 3.2.12 Reassembling the mode sw. / select lock arm 3 7 63 1515 0 Select lock arm spring (See Figs.24 to 26) REFERENCE: Hook w Reverse the above removing procedure. Joint v (1) Reattach the select lock arm spring to the top plate and set Joint v the shorter end of the select lock arm spring to the hook w on the top plate.
  • Page 19 http://www.xiaoyu163.com 3.2.13 Removing the select arm R / link plate 3 7 63 1515 0 Joint c' Link plate Joint r (See Figs.27 and 28) Select arm R Joint b' • Prior to performing the following procedure, remove the top plate assembly.
  • Page 20 http://www.xiaoyu163.com 3.2.15 Removing the loading roller assembly 3 7 63 1515 0 (See Figs.31 to 33) Loading roller assembly • Prior to performing the following procedure, remove the Roller guide clamper assembly and top plate assembly. spring (1) Push inward the loading roller assembly on the gear side and detach it upward from the slot of the joint g' of the lock arm rivet assembly.
  • Page 21 http://www.xiaoyu163.com 3.2.16 Removing the loading gear 5, 6 and 7 3 7 63 1515 0 Loading gear bracket (See Figs.35 and 36) • Prior to performing the following procedure, remove the top Loading gear 6 cover, chassis unit, pickup unit and top plate assembly. (1) Remove the screw K attaching the loading gear bracket.
  • Page 22 http://www.xiaoyu163.com 3.2.17 Removing the gears 3 7 63 1515 0 Joint p' (See Figs.37 to 40) • Prior to performing the following procedure, remove the top Change plate cover, chassis unit, top plate assembly and pickup unit. rivet assembly • Pull out the loading gear 3. (See Fig.35.) (1) Pull out the feed gear.
  • Page 23 http://www.xiaoyu163.com 3.2.18 Removing the turn table / spindle motor 3 7 63 1515 0 Turn table (See Figs.41 and 42) • Prior to performing the following procedure, remove the top cover, connector board, chassis unit and clamper assembly. (1) Remove the two screws L attaching the spindle motor as- sembly through the slot of the turn table on top of the body.

  • Page 24: Adjustment

    (3) Digital tester Output Level Line out 2.5V (Vol. MAX) (4) Tracking offset meter (5) Test Disc JVC :CTS-1000 Dummy load (6) Extension cable for check Exclusive dummy load should be used for AM,and FM. For FM EXTSH002-22P × 1 dummy load,there is a loss of 6dB between SSG output and antenna input.The loss of 6dB need not be considered since...

  • Page 25: Troubleshooting

    http://www.xiaoyu163.com SECTION 5 3 7 63 1515 0 TROUBLESHOOTING Feed section Is the voltage output at Is the wiring for IC561 Is 5V present at IC541 Check CD 8V. IC561 pin 22 5V or 0V pin 22 correct? pin 27? Check the vicinity of IC561.
  • Page 26 http://www.xiaoyu163.com Signal processing section 3 7 63 1515 0 No sound from either Is the sound output from Compare the L-ch and channel. both channels (L, R)? R-ch to locate the defective point. Normal Is 9V present at IC301 pin Check the vicinity of the Q321 audio power supply.
  • Page 27 http://www.xiaoyu163.com Maintenance of laser pickup 3 7 63 1515 0 Replacement of laser pickup (1) Cleaning the pick up lens Before you replace the pick up, please try to clean the lens Turn off the power switch and, disconnect the with a alcohol soaked cotton swab.
  • Page 28 http://www.xiaoyu163.com 16 PIN CORD DIAGRAM 3 7 63 1515 0 Black Green BL/WH Violet Blue Gray WH/BK Yellow White GN/BK VI/BK GY/BK 16 YL MEMORY 8 BK 7 RD 5 BL/WH REMOTE 4 WH 12 WH/BK 3 GN 11 GN/BK L 13942296513 2 VI 10 VI/BK...
  • Page 29 http://www.xiaoyu163.com 3 7 63 1515 0 L 13942296513 u163 (No.MA118)1-29 http://www.xiaoyu163.com...
  • Page 30 http://www.xiaoyu163.com 3 7 63 1515 0 L 13942296513 u163 Victor Company of Japan, Limited AV & MULTIMEDIA COMPANY CAR ELECTRONICS CATEGORY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan (No.MA118) Printed in Japan http://www.xiaoyu163.com...
  • Page 31 3 7 63 1515 0 SCHEMATIC DIAGRAMS CD RECEIVER KD-S21 CD-ROM No.SML200501 Area suffix J --------------- Northern America L 13942296513 Contents Block diagram Standard schematic diagrams Printed circuit boards 2-9,10 u163 No.MA118SCH COPYRIGHT 2005 Victor Company of Japan, Limited.

  • Page 32: Tel 13942296513

    http://www.xiaoyu163.com 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 33 http://www.xiaoyu163.com 3 7 63 1515 0 < M E M O > L 13942296513 u163 http://www.xiaoyu163.com...

  • Page 34: Block Diagram

    http://www.xiaoyu163.com 3 7 63 1515 0 Block diagram Main amplifier & CD servo control section FM/AM TUNER PACK SD/ST,MONO S.METER,FM/AM SEEK/STOP FEED+ IFC,EO LOAD&FEED FEED- FM OSC MOTOR POSITION SET SW1,SW2,PSW SWITCH SPINDLE+ SPINDLE+ LM,MSW SPINDLE SPINDLE- SPINDLE- MOTOR FEED+ FEED- TRACKING+ SW1, SW2...
  • Page 35 http://www.xiaoyu163.com 3 7 63 1515 0 OUTLF OUTLR TU.LCH OUTRF TU.RCH OUTRR LINE OUT IC301 OUTLF E.VOL OUTLR OUTRF OUTRR CD.LCH IC321 CD.RCH POWER AMP. LF+,LF- RF+,RF- LR+,LR- RR+,RR- IC801 MICON CD.RESET STATUS SUBQ,SQCK TLOCK,FLOCK CD.SENSE L 13942296513 MLD,MDATA MCLK,BLKCK &DAC OUTL OUTR...

  • Page 36: Standard Schematic Diagrams

    http://www.xiaoyu163.com 3 7 63 1515 0 Standard schematic diagrams Main amplifier section TU701 QAU0394-001 CJ701 QNB0190-001 L701 4.7u R201 2.2k R703 2.2k R101 R701 Q791 2SB624/4/-X R735 Q861 R791 1.5k Q792 UN2111-X 2SB709A/QR/-x C731 R736 R733 2.2/50 Q701 C732 0.001 Q731 Q793 2SD601A/QR/-X...
  • Page 37 http://www.xiaoyu163.com 3 7 63 1515 0 Q861 UN2111-X R333 R334 MUTE CJ321 D332 QNN0519-001 R336 2.2k Q332 KTD1304-X MA111-X D333 R436 2.2k Q432 KTD1304-X MA111-X R433 R434 IC321 LA47515 C339 IC301 1/50 TEA6320T-X L 13942296513 C334 C332 R307 0.47 R301 C333 C304 C305...
  • Page 38 http://www.xiaoyu163.com 3 7 63 1515 0 CD servo control section C541 C545 47/6.3 0.01 C543 0.033 C540 R558 Q541 2SA2093/QR/-T D551 1A3G-T1 C546 270k R547 R550 R548 5.6k R553 R554 CN501 QGB2027M4-22S FEED- FEED- FEED- FEED+ FEED+ FEED+ L 13942296513 SPINDLE- SPINDLE+ SPINDLE-...
  • Page 39 http://www.xiaoyu163.com 3 7 63 1515 0 IC561 MN6627482WA CD8V CD.RESET STATUS SUBQ SQCK TLOCK FLOCK CD.SENSE C152 R151 KICK MDATA 2.2/50 MCLK R560 BLKCK C570 270k C153 FBAL R155 C574 5.6k CD.RCH TBAL 0.022 1.5k 150p CD.LCH R582 0.01 C573 RFENV C578 VDET...
  • Page 40 http://www.xiaoyu163.com 3 7 63 1515 0 LCD & Key control section LCD1 QLD0323-001 R604 R603 R602 R601 R605 KEY2 1.2K L 13942296513 S601 S602 S603 S604 S605 S606 D635 D632 D636 D640 D643 D644 D649 D650 D648 D631 D633 D637 R609 R608 R607...
  • Page 41 http://www.xiaoyu163.com 3 7 63 1515 0 JS686 IC681 QSW0793-001 RPM7338-V4 C682 0.012 R687 C681 4.7/6.3 R688 C687 0.022 R681 CJ601 QGZ1601K1-15S ILL_10V REMOCON ENC1 TO CN801 ENC2 DIMOUT (SHEET 1) LCD.SCK LCD.SO LCD.CE KEY0 KEY1 KEY2 R661 2.2K R662 2.2K COM1 L 13942296513 COM2...

  • Page 42: Printed Circuit Boards

    http://www.xiaoyu163.com 3 7 63 1515 0 Printed circuit boards Main board D904 C915 C901 R911 R903 R434 C914 D869 IC901 C906 C861 D867 R862 R861 C996 B366 R904 B851 C905 C902 Q332 Q903 D901 B902 C910 R902 Q432 CJ701 C331 R336 C302 B898...
  • Page 43 http://www.xiaoyu163.com 3 7 63 1515 0 Switch board Forward side R626 D651 JS686 D636 S611 D649 R608 R607 R612 D637 R611 D648 R651 R652 S614 LCD1 D647 R603 R605 D644 D645 D638 D639 D641 D646 D640 D642 D643 S605 S604 S608 R610 S603...
  • Page 44 http://www.xiaoyu163.com 3 7 63 1515 0 L 13942296513 u163 Victor Company of Japan, Limited AV & MULTIMEDIA COMPANY CAR ELECTRONICS CATEGORY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan Printed in Japan (No.MA118SCH) http://www.xiaoyu163.com...

  • Page 45: Parts List

    3 7 63 1515 0 PARTS LIST [ KD-S21 ] * All printed circuit boards and its assemblies are not available as service parts. Area suffix L 13942296513 J -------------- Northern America - Contents - Exploded view of general assembly and parts list (Block No.M1) CD mechanism assembly and parts list (Block No.MB)
  • Page 46 http://www.xiaoyu163.com 3 7 63 1515 0 Exploded view of general assembly and parts list Block No. L 13942296513 Front board u163 http://www.xiaoyu163.com...
  • Page 47 http://www.xiaoyu163.com 3 7 63 1515 0 Block No. Main board Main board L 13942296513 LCD1 u163 http://www.xiaoyu163.com...
  • Page 48 http://www.xiaoyu163.com 3 7 63 1515 0 General Assembly Block No. [M][1][M][M]  Symbol No. Part No. Part Name Description Local GE10043-210A TOP CHASSIS GE40135-001A EARTH PLATE GE30938-003A SIDE PANEL QYSDST2604ZA TAP SCREW M2.6 x 4mm(x3) GE40235-001A SCREW (x2) QYSDST2604ZA TAP SCREW M2.6 x 4mm(x3) GE40235-004A SCREW...
  • Page 49 http://www.xiaoyu163.com 3 7 63 1515 0 CD mechanism assembly and parts list Block No. Grease TN-2001-1011 TNG-87 GP-501MK CFD-005Z GP-305T L 13942296513 u163 The parts without symbol number are not service. http://www.xiaoyu163.com...
  • Page 50 http://www.xiaoyu163.com 3 7 63 1515 0 CD mechanism Block No. [M][B][M][M]  Symbol No. Part No. Part Name Description Local 30320101T FRAME 30320102T TOP COVER 30320115T DANPER F 30320116T DANPER R 303205505T CHASSIS RIVET 303205503T CHANGE P. RVT A 303205301T CLAMPER ASS'Y 303205302T SPINDLE MOTOR A...
  • Page 51 http://www.xiaoyu163.com 3 7 63 1515 0 Electrical parts list Main board Symbol  Part No. Part Name Description Local Block No. [0][1] C309 QEKJ1AM-107Z E CAPACITOR 100uF 10V M  Symbol Part No. Part Name Description Local C310 NCB31HK-103X C CAPACITOR 0.01uF 50V K C311 QEKJ1AM-107Z...
  • Page 52 http://www.xiaoyu163.com 3 7 63 1515 0 Symbol Symbol   Part No. Part Name Description Local Part No. Part Name Description Local C571 NCB31EK-104X C CAPACITOR 0.1uF 25V K R333 NRSA63J-102X MG RESISTOR 1kΩ 1/16W J C572 QEKJ1AM-107Z E CAPACITOR 100uF 10V M R334 NRSA63J-101X...
  • Page 53 http://www.xiaoyu163.com 3 7 63 1515 0 Symbol  Part No. Part Name Description Local R795 NRS181J-150X MG RESISTOR 15Ω 1/8W J R796 NRS181J-150X MG RESISTOR 15Ω 1/8W J R797 NRS181J-100X MG RESISTOR 10Ω 1/8W J R798 NRSA63J-223X MG RESISTOR 22kΩ 1/16W J R801 NRS181J-103X MG RESISTOR...
  • Page 54 http://www.xiaoyu163.com 3 7 63 1515 0 Switch board Symbol  Part No. Part Name Description Local Block No. [0][2] R666 NRSA63J-103X MG RESISTOR 10kΩ 1/16W J Symbol  Part No. Part Name Description Local R667 NRSA63J-103X MG RESISTOR 10kΩ 1/16W J R668 NRSA63J-103X MG RESISTOR...
  • Page 55 http://www.xiaoyu163.com 3 7 63 1515 0 <MEMO> L 13942296513 u163 3-11 http://www.xiaoyu163.com...
  • Page 56 http://www.xiaoyu163.com 3 7 63 1515 0 Packing materials and accessories parts list Block No. No additional / supplemental order of WARRANTY CARDs are available. A3 A4 A5 A6 A7 A8 A9 L 13942296513 KIT : A10 A11 A12 A13 A14 u163 3-12 http://www.xiaoyu163.com...
  • Page 57 http://www.xiaoyu163.com 3 7 63 1515 0 Packing and Accessories Block No. [M][3][M][M]  Symbol No. Part No. Part Name Description Local GE20137-003A MOUNTING SLEEVE GE20135-004A TRIM PLATE GET0245-001A INST BOOK ENG SPA FRE GET0245-002A INSTALL MANUAL LVT0717-001B TROUBLE SHEET(C ------------ WARRANTY CARD BT-51018-4 ------------...

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