JVC KD-LH1000 Service Manual

Cd receiver

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Instructions manual (45 pages)

Instructions manual (44 pages)

Instructions manual (113 pages)

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Summary of Contents for JVC KD-LH1000

Page 1: Table Of Contents
KD-LH1000 3 7 63 1515 0 SERVICE MANUAL CD RECEIVER KD-LH1000 SOUND SOURCE L 13942296513 Area Suffix Northern America Contents Safety precaution Flow of functional Preventing static electricity operation unit TOC read 1-19 Disassembly method Maintenance of laser pickup...
Page 2: Safety Precaution
KD-LH1000 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: Preventing Static Electricity
KD-LH1000 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: Disassembly Method
KD-LH1000 3 7 63 1515 0 Disassembly method Removing the front panel unit (See Fig.1) Press the release switch and remove the front panel unit in the direction of the arrow. Front panel unit Fig.1 Removing the front chassis (See Fig.2 to 4)
Page 5 KD-LH1000 3 7 63 1515 0 Removing the bottom cover (See Fig.6) Joints d Prior to performing the following procedure, remove Bottom cover the front chassis and the heat sink. Turn the body upside down. Insert a screwdriver to the two joints d and two joints...
Page 6 KD-LH1000 3 7 63 1515 0 Removing the CD mechanism assembly CD mechanism assembly (See Fig.9) Prior to performing the following procedure, remove the front chassis, the heat sink, bottom cover and the main amplifier board assembly. Remove the three screws G attaching the cassette mechanism assembly from the top cover.
Page 7 KD-LH1000 3 7 63 1515 0 < CD mechanism section > Removing the top cover (See Fig.1 and 2) Remove the two screws A on each side of the body. Top cover Joints a Lift the front side of the top cover and move the cover backward to release the two joints a.
Page 8 KD-LH1000 3 7 63 1515 0 Removing the DET switch (See Fig.3 and 6) Extend the two tabs c of the feed sw. holder and pull out the switch. DET switch Unsolder the DET switch wire if necessary. Connector board Removing the chassis unit (See Fig.7 and 8)
Page 9 KD-LH1000 3 7 63 1515 0 Removing the clamper assembly (See Fig.9 and 10) Prior to performing the following procedure, remove Clamper arm the top cover. spring Remove the clamper arm spring. Move the clamper assembly in the direction of the arrow to release the two joints d.
Page 10 KD-LH1000 3 7 63 1515 0 Feed sw. holder Removing the pickup unit (See Fig.13 to 17) Joint f Prior to performing the following procedure, remove the top cover, the connector board and the chassis unit. Remove the screw D and pull out the pu.
Page 11 KD-LH1000 3 7 63 1515 0 Removing the trigger arm (See Fig.18 and 19) Joint k Prior to performing the following procedure, remove the top cover, the connector board and the clamper unit. Trigger arm Turn the trigger arm in the direction of the arrow to release the joint k and pull out upward.
Page 12 KD-LH1000 Joint a' Link plate Joint r 3 7 63 1515 0 Removing the select arm (L) / select lock Select arm (L) Joint z Select arm (R) arm (See Fig.21 and 22) Select lock arm Prior to performing the following procedure, remove the top plate assembly.
Page 13 KD-LH1000 Joint a' Link plate Joint r 3 7 63 1515 0 Removing the select arm (R) / link plate Select arm (L) Joint z Select arm (R) (See Fig.21 and 22) Select lock arm Prior to performing the following procedure, remove the top plate assembly.
Page 14 KD-LH1000 Roller guide 3 7 63 1515 0 Removing the loading roller assembly Washer (See Fig.27 to 29) Loading roller assembly Prior to performing the following procedure, remove the clamper assembly and the top plate assembly. Roller guide Push inward the loading roller assembly on the gear side and detach it upward from the slot of the joint d’...
Page 15 KD-LH1000 3 7 63 1515 0 Removing the loading gear (5), (6) and Loading gear bracket (7) (See Fig.31 and 32) Loading gear (6) Prior to performing the following procedure, remove the top cover, the chassis unit and the top plate assembly.
Page 16 KD-LH1000 3 7 63 1515 0 Removing the gears (See Fig.33 to 36) Prior to performing the following procedure, remove the top cover, the chassis unit, the top plate assembly and the pickup unit. Slot j' Pull out the feed gear.
Page 17 KD-LH1000 3 7 63 1515 0 Removing the turn table / spindle motor Turn table (See Fig.37 and 38) Prior to performing the following procedure, remove the top cover, the connector assembly and the chassis / clamper assembly. Remove the two screws K...
Page 18: 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 EXTSH002-22P 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 19 KD-LH1000 3 7 63 1515 0 Flow of functional operation unit TOC read Power ON When the laser diode correctly Set Function CD When the pickup correctly moves emits to the inner area of the disc Microprocessor $82 $81...
Page 20 KD-LH1000 3 7 63 1515 0 Feed section Is the voltage output at Is the wiring for IC621 Is 3.3V present at IC681 IC621 pin "40" 3.3V or 0V? (56)~(64) correct? pin "20"? Check CD 8V Check the vicinity of and 5V.
Page 21: Maintenance Of Laser Pickup
KD-LH1000 3 7 63 1515 0 Maintenance of laser pickup (1) Cleaning the pickup lens Before you replace the pickup,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.
Page 22: Description Of Major Ics
KD-LH1000 3 7 63 1515 0 Description of major ICs UPD784216AGC171 (IC701) : CPU 1. Pin layout 2. Pin function Pin NO. Name Function No connected No connected CD mecha SW2 RESET SW CD mecha Position Setting SW Loading motor control output Loading / feed motor selecting output loading motor;...
Page 23 KD-LH1000 3 7 63 1515 0 Pin NO. Name Function BUZZER Buzzer output E2PROM-DI I2C data input E2PROM-DO I2C data output E2PROM-CLK I2C clock outpu OPEN DOOR OPEN SW No connected No connected No connected No connected SD/ST Station detector or streo indicator input ; H means a station is there. L means the program is stereo.
Page 24 KD-LH1000 3 7 63 1515 0 LA6579H (IC681) : CD driver 1. Pin layout & Block diagram VIN1-A VIN1 VIN1_SW [H]: OP-AMP_A [L]: OP-AMP_B VIN1+A VIN1-B VCCP1 VIN1+B VO1+ Signal system S-GND power supply VO1- VIN1-SW All outputs ON/OFF...
Page 25 KD-LH1000 3.Pin function 3 7 63 1515 0 Pin No. Symbol Function CH1 input AMP_inverted input VIN1-A CH1 input AMP_non-inverted input VIN1+A CH1 and CH2 power stage power supply VCCP1 Output pin(+)for channel 1 VO1+ CH1 output pin (-) for channel 1...
Page 26 KD-LH1000 3 7 63 1515 0 MN102H60KCA (IC801) : CPU 1. Pin layout 2. Pin function Pin NO. Name Function LED reset input terminal Redoinabl output terminal for enhancing memory No connected No connected No connected Chip selection 0 output terminal for enhancing memory...
Page 27 KD-LH1000 3 7 63 1515 0 Pin NO. Name Function AGND Analog terminal GND KEYO KEY0 input AD terminal KEY1 KEY1 input AD terminal KEY2 KEY2 input AD terminal KEY3 KEY3 input AD terminal SWLED0 Output for SW_LED Flushing 0 (LED for [VOL] key)
Page 28 KD-LH1000 3 7 63 1515 0 TA8273H (IC951) : Power amp. 1.Block diagram 2200 F 0.022 F Vcc 1/2 Vcc 3/4 INRF OUT RF+ 0.22 F OUT RF- AC CONT1 Protective circuit OUTRR+ INRR OUTRR- 0.22 F L 13942296513...
Page 29 KD-LH1000 2.Terminal layout 3 7 63 1515 0 3.Pin function TA8273H Pin No. Symbol Function Header of IC Power GND Outpur(-) for Rear Rch OUT1- STBY Stand by input OUT1+ Output (+) for Rear Rch Power input Output (-) for Front Rch...
Page 30 KD-LH1000 3 7 63 1515 0 TA2157FN (IC601) : RF amp 1.Terminal layout 2.Block diagram PEAK 50 A L 13942296513 BOTTOM PEAK 1.75k 240k 15pF x0.5 240k 15pF x0.5 180k 40pF RFGC (APC SW) (TE BAL) (AGC Gian) (TE BAL)
Page 31 KD-LH1000 3.Pin function 3 7 63 1515 0 TA2175FN-X Pin No. Symbol Function 3.3V power supply pin Main-beam amp input pin Main-beam amp input pin Sub-beam amp input pin Sub-beam amp input pin Monitor photo diode amp input pin...
Page 32 KD-LH1000 3 7 63 1515 0 TC94A14FA (IC621) : D.SURVO & DSP 1.Terminal layout & block daiagram Clock generator 1-bit Servo control Digital equalizer Address automatic circuit adjustment circuit Data CLV servo slicer 16 k Synchronous guarantee L 13942296513...
Page 33 KD-LH1000 TC94A14FA 3 7 63 1515 0 Symbol Description EFM and PLCK phase difference signal output pin. TMAX TMAX detection result output pin. TMAX Detection Result TMAX Output Longer than fixed period "PV " Within fixed period "HiZ" Shorter than fixed period "AV...
Page 34 KD-LH1000 3 7 63 1515 0 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 EXT OUT...
Page 35 KD-LH1000 3 7 63 1515 0 M61508FP (IC111) : E. volume 1. Pin layout & Block diagram LOUDNESS (Digital) (Anarog) 3BAND TONE CONTROL (BASS/MID/TREBLE) Soft select Z E R O C RO S S D E T E C T O R...
Page 36 KD-LH1000 3 7 63 1515 0 MX23L8103-90 (IC802) : LCD Driver 1. Pin layout 2. Block diagram BYTE Q15/A-1 WRITE CONTROL PROGRAM/ERASE STATE INPUT HIGH VOLTAGE LOGIC MACHINE RESET (WSM) RESET MX29LV800T/B STATE RY/BY REGISTER ADDRESS FLASH ARRAY LATCH...
Page 37 KD-LH1000 3 7 63 1515 0 HD74HC126FP (IC781) : J-BUS buffer 1.Pin layout 3.Pin function Input Output Note) H:High level L:Low level X:Irrelevant Z:Off(High-impedance) State a 3-state input 2.Block diagram Output Input L 13942296513 Output Sample as Load Circuit 1...
Page 38 KD-LH1000 3 7 63 1515 0 IC-PST9322U (IC803) : Regulator 1.Pin layout 2.Block diagram VOUT VOUT 3.Pin function PIN No. PIN NAME FUNCTIONS INTERNAL EQUIVALENT CIRCUIT L 13942296513 Refer to 4. BLOCK DIAGRAM. GND PIN VOUT Reset Signal Output PIN...
Page 39 KD-LH1000 3 7 63 1515 0 BU4066BCFV (IC131) : Quad analog switch 1.Pin layout & Block diagram CONT1 CONT4 OUT4 OUT3 OUT1 OUT2 CONT2 CONT3 L 13942296513 IC-PST9333U (IC702) : Regulator 1. Pin layout 2. Block diagram VOUT VOUT 3.
Page 40 KD-LH1000 3 7 63 1515 0 HN58X2416FPI (IC703) : EEPROM 1.Terminal layout 2.Pin function Pin name Function A0 to A2 Device address WPIN Serial clock input Serial data input/output WPIN Write protect Power supply Ground 3.Block diagram High voltage generator...
Page 41 KD-LH1000 3 7 63 1515 0 NJM2360 (IC921) : DC-DC convertor 1. Pin layout 2. Block diagram Switch Driver 1. Cs collector collector 2. Es 3. C 4. GND Switch Ipk sense 5. INV emitter 6. Vcc 7. S Timing 8.
Page 42 KD-LH1000 3 7 63 1515 0 L 13942296513 u163 VICTOR COMPANY OF JAPAN, LIMITED MOBILE ELECTRONICS DIVISION PERSONAL & MOBILE NETWORK BUSINESS UNIT. 10-1,1Chome,Ohwatari-machi,Maebashi-city,371-8543,Japan 200205 (No.49732) http://www.xiaoyu163.com...
Page 43: U163 Co M
KD-LH1000 3 7 63 1515 0 SCHEMATIC DIAGRAMS CD RECEIVER KD-LH1000 CD-ROM No.SML200205 SOUND SOURCE L 13942296513 Area Suffix Northern America Contents Block diagram Standard schematic diagrams Printed circuit boards u163 This schematic diagrams is printed on 100% recycled paper.
Page 44 KD-LH1000 3 7 63 1515 0 < M E M O > L 13942296513 u163 http://www.xiaoyu163.com...
Page 45: Block Diagram
KD-LH1000 Block diagram 3 7 63 1515 0 FM/AM TUNER PA LOADING TRACKING PICKUP FOCUS CD.L IC681 IC771 SPINDLE CD.R CDL.P.F FEED LOADING DRIVER L-CH VREF & PLLCE R-CH FEED PLLDA VF1,VF2 MOTOR IC601 IC621 PLLCL VT2,VT1 RF AMP...
Page 46 KD-LH1000 3 7 63 1515 0 IC132 IC131 BUFFER SUB WOOFER OUT TU.L,TU.R IC131 FM/AM IC251 TUNER PACK BUFFER LINE OUTLF OUTLR IC301 IC111 MONO POWER E.VOL SD/ST OUTRF IC151 FM/AM OUTRR BUFFER LLCE LLDA LLCL LLDI L 13942296513...
Page 47 KD-LH1000 Standard schematic diagrams 3 7 63 1515 0 Receiver & System control section QAU0204-002 C216 QNB0100-002 C215 C102 4.7/25 R101 8.2k C212 4.7/25 CD-R C202 4.7/25 R201 8.2k C204 1/50 R211 VOLCK C211 4.7/25 CH-R 3.3k 2SB815 2SB815...
Page 48 KD-LH1000 3 7 63 1515 0 QNN0490-001 R121 R123 J121 R122 R124 R221 Q121 Q122 R222 2SD1048 2SD1048 C131 10/16 2SD1048 Q221 Q222 2SD1048 Q131 LPF2 R223 UN2211 R224 R145 C142 C216 4.7/25 R144 C215 4.7/25 C132 0.033 5.6k 2.2/50...
Page 49 KD-LH1000 Mecha control circuit section 3 7 63 1515 0 VREF R613 C611 R611 R610 R614 R612 C610 C614 0.01 C613 0.01 R601 R602 R603 330k R604 330k C605 R607 R608 TRACKING- C603 100/6.3 0.0068 TRACKING+ FOCUS+ VREF Q601...
Page 50 KD-LH1000 3 7 63 1515 0 R273 3.3k C275 C274 4.7/25 C273 1000P R271 R272 1.2k R-CH CD-R 22/6.3 C173 R171 C174 R172 1.2k L-CH CD-L 1000P C175 22/6.3 R173 3.3k 4.7/25 C637 0.047 C636 0.047 C632 470P X621...
Page 51 KD-LH1000 Printed circuit boards 3 7 63 1515 0 Main board(Forward side) C910 IC901 C909 C906 J121 R906 C907 D904 C908 D902 C905 C903 C181 C902 CN901 R915 D901 R181 R281 R914 R916 C914 R913 R910 C921 C912 D905...
Page 52 KD-LH1000 3 7 63 1515 0 Main board(Reverse side) IC901 J121 CN902 C910 CN901 C902 C903 C905 D901 C912 R910 R907 C908 C952 C924 C921 C914 C153 C923 C955 C137 C157 C925 C954 C152 C142 C151 C156 C953 C160...
Page 53 KD-LH1000 3 7 63 1515 0 L 13942296513 u163 VICTOR COMPANY OF JAPAN, LIMITED MOBILE ERECTRONICS DIVISION PERSONAL & MOBILE NETWORK BUSINESS UNIT. 10-1,1Chome,Ohwatari-machi,Maebashi-city,371-8543,Japan 49732 200205(V) http://www.xiaoyu163.com...
Page 54: Parts List
KD-LH1000 3 7 63 1515 0 PARTS LIST [ KD-LH1000 ] * 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- 5 CD mechanism assembly and parts list (Block No.MB)
Page 55 KD-LH1000 3 7 63 1515 0 Exploded view of general assembly and parts list Block No. L 13942296513 u163 http://www.xiaoyu163.com...
Page 56 KD-LH1000 3 7 63 1515 0 Parts list (General assembly) Block No. M1MM Item Parts number Parts name Q'ty Description Area TOP CHASSIS GE10043-001A EARTH PLATE GE40135-001A GE30568-002A HEAT SINK GE30393-001A BOTTOM COVER FSMA3005-001 INSULATOR QYSDST2604Z SCREW 3 CHASSIS+CD MECH...
Page 57 KD-LH1000 3 7 63 1515 0 Parts list (General assembly) Block No. M1MM Item Parts number Parts name Q'ty Description Area GE30547-001A DETACH BUTTON COMP.SPRING 1 FOR DETACH BUTT VKW3001-330 VKZ4777-001 MINI SCREW 4 FRONT+REAR GE10045-001A REAR COVER FSYH4036-035...
Page 58 KD-LH1000 3 7 63 1515 0 CD mechanism assembly and parts list Block No. TN-2001-1001 Grease TNG-87 L 13942296513 u163 http://www.xiaoyu163.com...
Page 59 KD-LH1000 3 7 63 1515 0 Parts list (CD mechanism) Block No. MBMM Item Parts number Parts name Q'ty Description Area FRAME 30320101T TOP COVER 30320102T 30320109T DAMPER F 30320110T DAMPER R 303205501T CHASSIS RIVET A 303205503T CHANGE P. RVT A...
Page 60 KD-LH1000 3 7 63 1515 0 Parts list (CD mechanism) Block No. MBMM Item Parts number Parts name Q'ty Description Area 30321103T LOADING GEAR 3 30321104T LOADING GEAR 4 30321105T LOADING GEAR 5 LOADING GEAR 6 30321106T LOADING GEAR 7...
Page 61 KD-LH1000 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 BZ795 QAN0002-001Z BUZZER C 194 QERF1HM-224Z E CAPACITOR .22MF 20% 50V...
Page 62 KD-LH1000 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 644 QERF1HM-105Z E CAPACITOR 1.0MF 20% 50V C 962 NCB31EK-223X...
Page 63 KD-LH1000 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 IC681 LA6579H-X R 116 NRSA63J-103X MG RESISTOR IC701 UPD784216AGC171 IC R 121...
Page 64 KD-LH1000 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 252 NRSA63J-223X MG RESISTOR R 708 NRSA63J-821X MG RESISTOR R 253...
Page 65 KD-LH1000 3 7 63 1515 0 Electrical parts list (Main board) Block No. 01 Item Parts number Parts name Remarks Area R 775 NRSA63J-222X MG RESISTOR R 776 NRSA63J-222X MG RESISTOR R 777 NRSA63J-473X MG RESISTOR R 778 NRSA63J-682X...
Page 66 KD-LH1000 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 451 NCB31EK-473X C CAPACITOR D 426 UDZS6.2B-X SI DIODE C 452...
Page 67 KD-LH1000 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 R 407 NRSA63J-471X MG RESISTOR R 814 NRSA63J-331X MG RESISTOR R 408...
Page 68 KD-LH1000 3 7 63 1515 0 Block No. 02 Electrical parts list (Front board) Item Parts number Parts name Remarks Area R 878 NRSA63J-301X MG RESISTOR R 879 NRSA63J-271X MG RESISTOR R 880 NRSA63J-391X MG RESISTOR R 881 NRSA63J-561X...
Page 69 KD-LH1000 3 7 63 1515 0 Packing materials and accessories parts list Block No. Block No. A1~A4 L 13942296513 KIT: A5~A9 A10~A14 u163 3-16 http://www.xiaoyu163.com...
Page 70 LVT0928-001A IMPORTANT SHEET LV43133-001A ERRATA SHEET LVT0717-001B TROUBLE SHEET(C BT-51018-3 WARRANTY CARD BT-52004-2 WARRANTY CARD BT-51028-1 REGIST CARD JVC CENTER LIST BT-20071B A 10 VKZ4027-202 PLUG NUT A 11 VKH4871-001SS MOUNT BOLT A 12 VKZ4328-001 LOCK NUT L 13942296513 A 13...

JVC KD-LH1000 Service Manual

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Summary of Contents for JVC KD-LH1000

Table of Contents