JVC KD-LH811 Service Manual
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JVC KD-LH811 Service Manual

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3 7 63 1515 0
SERVICE MANUAL
3
2005
MA155
TE
L 13942296513
1
PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
3
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
4
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-28
5
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-32
www
.
http://www.xiaoyu163.com
CD RECEIVER
KD-LH811

TABLE OF CONTENTS

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ao
u163
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i
COPYRIGHT © 2005 Victor Company of Japan, Limited
http://www.xiaoyu163.com
2 9
8
Q Q
3
6 7
1 3
1 5
co
.
9 4
2 8
Area suffix
E ------------- Southern Europe
EX ----------- Northern Europe
EY -------------- Eastan Europe
EU ------------------------ Turkey
0 5
8
2 9
9 4
2 8
m
No.MA155
9 9
9 9
2005/3

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  • Page 1: Table Of Contents

    3 7 63 1515 0 SERVICE MANUAL CD RECEIVER MA155 2005 KD-LH811 Area suffix E ------------- Southern Europe EX ----------- Northern Europe EY -------------- Eastan Europe EU ------------------------ Turkey 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 Maximum Power Output Front 50 W per channel Rear 50 W per channel 19 W per channel into 4 Ω 40 Hz to 20 000 Hz at no more Continuous Power Output (RMS) Front than 0.8% total harmonic distortion.

  • 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: No.ma155)1

    http://www.xiaoyu163.com Important for laser products 3 7 63 1515 0 5.CAUTION : If safety switches malfunction, the laser is able 1.CLASS 1 LASER PRODUCT to function. 2.DANGER : Invisible laser radiation when open and inter 6.CAUTION : Use of controls, adjustments or performance of lock failed or defeated.

  • Page 6: 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 1-6 (No.MA155) http://www.xiaoyu163.com...

  • Page 7: 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. Front panel assembly (2) Take out the front panel assembly. Detach button Fig.1 3.1.2 Removing the heat sink...
  • Page 8 http://www.xiaoyu163.com 3.1.3 Removing the top chassis assembly 3 7 63 1515 0 (See Figs.3 to 6) • Prior to performing the following procedures, remove the heat sink. Bottom chassis assembly Reference: Remove the front panel assembly as required. (Refer to "3.1.1 Removing the front panel assembly") (1) From the bottom side of the main body, remove the two screws C attaching the top chassis assembly to the bottom...
  • Page 9 http://www.xiaoyu163.com 3.1.4 Removing the front chassis 3 7 63 1515 0 (See Figs.7 and 8) • Prior to performing the following procedure, remove the front panel assembly, heat sink and top chassis assembly. Top chassis assembly (1) From the both sides of the top chassis assembly, remove the two screws F attaching the front chassis.

  • Page 10: Fig.16

    http://www.xiaoyu163.com 3.1.6 Removing the CD mechanism assembly 3 7 63 1515 0 (See Fig.10) • Prior to performing the following procedures, remove the front panel assembly, heat sink and top chassis assembly. Top chassis Reference: Remove the front chassis and mechanism control board as re- quired.(Refer to "3.1.4 Removing the front chassis"...
  • Page 11 http://www.xiaoyu163.com 3.1.8 Removing the rear bracket 3 7 63 1515 0 (See Fig.13) • Prior to performing the following procedures, remove the front panel assembly, heat sink, top chassis assembly and main Main board Wire holder board. Wire (1) From the rear side of the main board, remove the wires from the rear bracket in the direction of the arrow.
  • Page 12 http://www.xiaoyu163.com 3.1.10 Removing the switch board 3 7 63 1515 0 (See Figs.15 to 17) • Prior to performing the following procedures, remove the front panel assembly. (1) From the rear side of the front panel assembly, remove the Rear cover four screws R attaching the rear cover to the front panel as- sembly.
  • Page 13 http://www.xiaoyu163.com CD Mechanism section 3 7 63 1515 0 3.2.1 Removing the top cover (See Figs.1 and 2) (1) Remove the four 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 14 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 15: No.ma155)1

    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. switch Connector board Pickup...
  • Page 16 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) (1) Remove the two suspension springs (L) and (R) attaching Suspension spring (R) the chassis unit to the frame.
  • Page 17 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 18 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 as- sembly in the direction of the arrow to remove it from the chassis rivet assembly.
  • Page 19 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 20 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 21 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 22 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. (1) Reattach the select lock arm spring to the top plate and set Joint v Joint v the shorter end of the select lock arm spring to the hook w...
  • Page 23 http://www.xiaoyu163.com 3.2.13 Removing the select arm R / link plate 3 7 63 1515 0 Link plate Joint c' Joint r (See Figs.27 and 28) Select arm R Joint b' • Prior to performing the following procedure, remove the top plate assembly.
  • Page 24 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 25 http://www.xiaoyu163.com 3.2.16 Removing the loading gear 5, 6 and 7 3 7 63 1515 0 (See Figs.35 and 36) Loading gear bracket • Prior to performing the following procedure, remove the top cover, chassis unit, pickup unit and top plate assembly. Loading gear 6 (1) Remove the screw K attaching the loading gear bracket.
  • Page 26 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 27 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 28: Adjustment

    (3) Digital tester Output Level Line out 5.0V (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 29 http://www.xiaoyu163.com Service mode 3 7 63 1515 0 4.2.1 Service mode setting (1) Push POWER BOTTON (Power ON) (2) Set to service mode By pushing and holding "DISP" button and "VOLUME +" button sequentially. (3) Select the menu with "CURSOR" button, and decide it with "OK" button. (4) When the "BACK"...
  • Page 30 http://www.xiaoyu163.com 3 7 63 1515 0 CD Data Read CD Data Read OK:Read ADJ NOW ADJ NOW The auto adjustment value of survo at now ADJ INT ADJ INT The auto adjustment value of survo at initial OTHERS IOP TEMP TEMP MIX TOTAL Running Mode...
  • Page 31 http://www.xiaoyu163.com 3 7 63 1515 0 CD Error Clear CD ERROR CLEAR CH Error Clear CH ERROR CLEAR Panel Mecha Error Clear PANEL MECHA ERROR CLEAR Picture Clear PICTURE CLEAR ONLY USED WITH RDS MODEL RDS Service Mode VER= PI = SPI = TP/TA= PTY=...

  • Page 32: Troubleshooting

    http://www.xiaoyu163.com SECTION 5 3 7 63 1515 0 TROUBLESHOOTING Feed section Is 5V or 0V at IC621 Is the wiring for IC621 Is 5V present at IC681 Check CD8V. pin 40? pin 40 correct? pin 6? Check the vicinity of IC621.
  • Page 33 http://www.xiaoyu163.com Signal processing section 3 7 63 1515 0 Compare the L-ch and Is the sound output from No sound from either R-ch to locate the both channels (L, R)? channel. defective point. Normal Is 9V present at IC161 Is 9V present at IC901 Check IC901 and its pin 40? pin 10?
  • Page 34 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 of the power switch and, disconnect the with a alcohol soaked cotton swab.
  • Page 35 http://www.xiaoyu163.com 16 PIN CORD DIAGRAM 3 7 63 1515 0 Black Green OR/WH Violet Gray Blue BL/WH White Yellow Orange Brown WH/BK GN/BK VI/BK GY/BK BL/WH OR/WH 7 RD RD 7 MEMORY 16 YL YL 4 15 OR/WH 8 BK REMOTE 6 BL/WH 13 BR...
  • Page 36 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.MA155) Printed in Japan http://www.xiaoyu163.com...
  • Page 37 3 7 63 1515 0 SCHEMATIC DIAGRAMS CD RECEIVER KD-LH811 CD-ROM No.SML200503 Area suffix E ------------- Southern Europe EX ----------- Northern Europe EY -------------- Eastan Europe EU ------------------------ Turkey L 13942296513 Contents Block diagram Standard schematic diagrams Printed circuit boards...

  • Page 38: 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 39: Block Diagram

    KEY0, KEY1 REMOCON PICTCLK LOAD&FEED IC801 LOAD/FEED+, LOAD/FEED- BUSCLK KEY2 LEVEL PICTDI MICON MOTOR JVC BUS STEERING CS1, CS2 RES, WE REMOTE RE/RD A0 to A20, D0 to D15 A0, D0 to D7 RY/BY, RE/RD, CS1 WE, ROMRST EFD-OUT1 OUT1...

  • Page 40: Standard Schematic Diagrams

    http://www.xiaoyu163.com 3 7 6 3 1 5 1 5 0 Standard schematic diagrams Main amplifier section CN141 QGA2006C1-04 J321 QNN0490-001 R331 R332 R142 R321 R322 C144 0.47 R351 Q331 R141 R151 R341 KTD1304-X Q321 KTD1304-X C189 C141 C151 10/16 Q341 Q351 0.0047 0.0047...
  • Page 41 http://www.xiaoyu163.com 3 7 6 3 1 5 1 5 0 CD servo control section R585 C585 C587 C589 R613 R581 R583 C611 CD.L-CH 8.2K 150p 4.7/35 R589 C577 4.7/35 R614 R612 R611 R610 C610 R572 C586 C588 C590 R582 R584 2.2M Q573 L571...
  • Page 42 http://www.xiaoyu163.com 3 7 6 3 1 5 1 5 0 LCD & Key control section D453 D452 D451 NSCM315C/Z/-W NSCM315C/Z/-W NSCM315C/Z/-W R458 R459 R426 R425 R424 R423 R422 R421 R460 1.5k 1.5K R461 1.5k C412 4.7/6.3 KEY0 R462 1.5k C411 4.7/6.3 S407 S406...

  • Page 43: Printed Circuit Boards

    http://www.xiaoyu163.com 3 7 6 3 1 5 1 5 0 Printed circuit boards Main board Forward side Reverse side C961 C262 B105 C261 CN901 L961 CN141 C961 J321 J801 C321 J321 C322 CN901 D961 L961 B305 B304 Q301 D301 CN141 C323 C324 C325...
  • Page 44 http://www.xiaoyu163.com 3 7 6 3 1 5 1 5 0 CD mechanism control board Forward side Reverse side C587 C588 R583 R584 R585 R586 Q502 C596 C595 C539 R593 R587 R589 R588 BUSCK C536 C694 PDET TH501 C535 C598 R572 R615 C597 1 3 9 4 2 2 9 6 5 1 3...

  • Page 45: Ao Y U163

    http://www.xiaoyu163.com 3 7 63 1515 0 Switch board Forward side S412 S405 R403 R424 R404 D400 R402 R430 R425 R431 D401 D404 R401 S413 S406 D409 D407 S401 S408 D414 D402 R426 R414 R421 R410 R419 R432 D406 R427 D411 D410 D405 R420...
  • Page 46 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.MA155SCH) http://www.xiaoyu163.com...

  • Page 47: Parts List

    3 7 63 1515 0 PARTS LIST [ KD-LH811 ] * All printed circuit boards and its assemblies are not available as service parts. KD-LH811 Area suffix E ------------- Southern Europe EX ------------ Northern Europe EY ------------- Eastern Europe...
  • Page 48 http://www.xiaoyu163.com 3 7 63 1515 0 Exploded view of general assembly and parts list Block No. 39 35 L 13942296513 Mechanism control board Switch board u163 http://www.xiaoyu163.com...
  • Page 49 http://www.xiaoyu163.com 3 7 63 1515 0 39 35 Main board L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 50 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  GE20156-001A GEAR BKT UNIT FSYH4036-100 SHEET GE30968-002A LEVER BKT UNIT GE30964-003A LOWER LEVER ASS WDL215025 WASHER (x2) GE40218-017A SHEET (x2) GE10073-006A TOP CHASSIS GE40135-001A...
  • Page 51 http://www.xiaoyu163.com 3 7 63 1515 0 Symbol No. Part No. Part Name Description Local  VYSH101-009 SPACER QAL0587-001 FPC CABLE QNZ0664-003 FRONT CONNECTOR QAM0686-001 STEERING REMOTE QAM0547-001 SUBWOOFER CABEL VYTA500-001 PIN CAP (x2) QMFZ047-150-T FUSE  GE31205-013A REAR BRACKET GE40207-001A POWER IC BKT GE40124-002A REG BRACKET...
  • Page 52 http://www.xiaoyu163.com 3 7 63 1515 0 CD mechanism assembly and parts list Block No. Grease TN-2001-1013 TNG-87 GP-501MK CFD-005Z GP-305T L 13942296513 u163 The parts without symbol number are not service. http://www.xiaoyu163.com...
  • Page 53 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 (x2) 30320116T DANPER R 303205505T CHASSIS RIVET 303205503T CHANGE P. RVT A 303205301T CLAMPER ASSY 303205302T...

  • Page 54: Electrical Parts List

    http://www.xiaoyu163.com 3 7 63 1515 0 Electrical parts list Main board  Symbol No. Part No. Part Name Description Local Block No. [0][1] D781 MA111-X SI DIODE  Symbol No. Part No. Part Name Description Local D782 UDZS11B-X Z DIODE D853 RB160M-30-X SB DIODE...
  • Page 55 http://www.xiaoyu163.com 3 7 63 1515 0  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local C304 NDC31HJ-101X C CAPACITOR 100pF 50V J C909 QERF1CM-226Z E CAPACITOR 22uF 16V M C305 NCB31HK-472X C CAPACITOR 4700pF 50V K C910...
  • Page 56 http://www.xiaoyu163.com 3 7 63 1515 0  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local R261 NRSA63J-821X MG RESISTOR 820Ω 1/16W J R748 NRSA63J-0R0X MG RESISTOR 0Ω 1/16W J R262 NRSA63J-181X MG RESISTOR 180Ω...
  • Page 57 http://www.xiaoyu163.com 3 7 63 1515 0  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local CN952 QJB005-040909 SIN ID C-B WIRE D433 MA8062/M/-X Z DIODE CN981 QGA2006F1-02 CONNECTOR W-B (1-2) D434 MA8062/M/-X Z DIODE QAM0556-001...
  • Page 58 http://www.xiaoyu163.com 3 7 63 1515 0  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local R422 NRSA63J-271X MG RESISTOR 270Ω 1/16W J RA401 NRZ0065-331X NET RESISTOR 330Ω R423 NRSA63J-391X MG RESISTOR 390Ω...
  • Page 59 http://www.xiaoyu163.com 3 7 63 1515 0  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local C509 NCB31HK-103X C CAPACITOR 0.01uF 50V K C654 NCB31CK-104X C CAPACITOR 0.1uF 16V K C510 NCB31HK-103X C CAPACITOR 0.01uF 50V K C655...
  • Page 60 http://www.xiaoyu163.com 3 7 63 1515 0  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local R562 NRSA63J-392X MG RESISTOR 3.9kΩ 1/16W J R684 NRSA63J-822X MG RESISTOR 8.2kΩ 1/16W J R563 NRSA63J-682X MG RESISTOR 6.8kΩ...
  • Page 61 http://www.xiaoyu163.com XXXXX 3 7 63 1515 0 <MEMO> L 13942296513 u163 3-15 http://www.xiaoyu163.com...
  • Page 62 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. A2 A3 A6 A7 A8 A2 A6 A7 A9 A10 A11 A8 A11 KD-LH811_E,EX,EY KD-LH811_EU L 13942296513 KIT: A12 A13 A14 A15 A16 u163...
  • Page 63 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  GET0274-001A INST BOOK GER FRE ITA LH811E GET0274-003A INST BOOK ENG FRE LH811EU,LH811EX GET0274-006A INST BOOK ENG GER RUS LH811EY GET0274-002A INST BOOK...

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