JVC CH-X550 Service Manual
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JVC CH-X550 Service Manual

JVC CH-X550 Service Manual

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QQ
3 7 63 1515 0
SERVICE MANUAL
1
2004
49787B
TE
L 13942296513
1
PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
3
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
4
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22
5
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23
www
.
CD CHANGER
CH-X550,CH-X500
CH-X550
CH-X500

TABLE OF CONTENTS

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COPYRIGHT © 2004 VICTOR COMPANY OF JAPAN, LIMITED
http://www.xiaoyu163.com
2 9
8
E ----------- Continental Europe
Q Q
3
6 7
1 3
1 5
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9 4
2 8
Area suffix
0 5
8
2 9
9 4
2 8
m
No.49787B
9 9
9 9
2004/1

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  • Page 1: Table Of Contents

    3 7 63 1515 0 SERVICE MANUAL CD CHANGER 49787B 2004 CH-X550,CH-X500 Area suffix E ----------- Continental Europe L 13942296513 CH-X550 CH-X500 TABLE OF CONTENTS PRECAUTION............... . . 1-3 SPECIFIC SERVICE INSTRUCTIONS .
  • Page 2 http://www.xiaoyu163.com 3 7 63 1515 0 SPECIFICATION CD CHANGER SECTION Frequency response 5 Hz - 20000Hz Dynamic range 93dB S/N ratio 96dB Distortion 0.01% Wow & Flutter Less than measurable limit Analog ( 8 pin × 1 ), 1.5V ( full scale )/less than 1k Ω Output terminal GENERAL Power requirement Operating voltage...

  • Page 3: Precaution

    http://www.xiaoyu163.com 3 7 63 1515 0 SECTION 1 PRECAUTION 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 3 7 63 1515 0 Preventing 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. 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

    3 7 63 1515 0 SECTION 2 SPECIFIC SERVICE INSTRUCTIONS How to recognize CD CHANGER 020268 MODEL NO. CH-X550 DC 12 V NEGATIVE GROUND VICTOR COMPANY OF JAPAN. LIMITED MADE IN INDONESIA SERIAL NO. for CAR USE A new board has the display of "N3" in a nameplate.

  • Page 6: Disassembly

    http://www.xiaoyu163.com 3 7 63 1515 0 SECTION 3 DISASSEMBLY • Perform operations according to the items to be disassembled. Replacement of the pickup (1) After removing the exterior (top and bottom). (2) Proceed to the pickup replacement section. Bottom cover (3) When applying grease, refer to the exploded view.
  • Page 7 http://www.xiaoyu163.com 3 7 63 1515 0 3.1.2 Removing the top cover Turn to the top position (at a right angle), (See Fig.5 to 9) then push down to lift off. (1) Remove the four damper bracket fixing screws C to re- move the damper brackets.

  • Page 8: No.49787B)1

    http://www.xiaoyu163.com 3 7 63 1515 0 3.1.3 Removing the fittings Catches a (See Fig.10) (1) Remove the fixing screw F. (2) Unhook the two catches a on the top edge of the fitting, then unhook the two catches b at the left / right bottom edges. Catches b Fitting Fig.10...
  • Page 9 http://www.xiaoyu163.com 3 7 63 1515 0 CD mechanism assembly Sensor assembly 3.2.1 Sensor assembly unit (See Fig.1) (1) Remove the two screws I securing the sensor assembly unit. (2) Unhook the spring on the back of the sensor assembly unit from the holes on the chassis.
  • Page 10 http://www.xiaoyu163.com 3 7 63 1515 0 3.2.4 Rear slider Can be removed at the stud position Rear slider (See Fig.4) (at the widest hole) (1) Position the unit with the front section facing down. Rotate Remove Shift the third gear located on the back of the main unit in the di- rection of the arrow (clockwise).
  • Page 11 http://www.xiaoyu163.com 3 7 63 1515 0 3.2.7 Lifter unit 3.2.8 Lifter bracket (See Fig.8 and 9) (See Fig.10) (1) Unhook the elevator spring located on the front side of the (1) Remove the two lifter bracket fixing screws L located on unit.
  • Page 12 http://www.xiaoyu163.com 3 7 63 1515 0 3.2.10 Removing the mechanism board / pickup assembly Pickup assembly (See Fig.12 to 15) (1) Remove the three screws N fixing the mechanism board Grounding point on the back of the traverse mechanism. (2) Disconnect the two feed motor wires (blue and white), two spindle motor wires (red and black) and two tray motor wires (brown and black) that are soldered to the mecha- Shaft holder...

  • Page 13: Http://Www.xiaoyu163.Com

    http://www.xiaoyu163.com 3 7 63 1515 0 3.2.11 Tray motor (See Fig.16 and 17 ) (1) Remove the two screws S securing the tray motor. (2) Remove the two screws T to remove the tray motor as- sembly from the tray motor holder. Tray motor assembly Fig.16 Tray motor holder...

  • Page 14: Precaution 2

    http://www.xiaoyu163.com 3 7 63 1515 0 3.2.13 Precautions on reassembling CAUTION: When reassembling, also refer to the disassembling proce- Rack arm dures. 3.2.13.1 Mounting the traverse mechanism (See Fig.19 to 23) (1) When mounting the pickup assembly, attach the feed slide shaft assembly to the traverse chassis.Apply E-JC-525 grease to the shaft.
  • Page 15 http://www.xiaoyu163.com 3 7 63 1515 0 3.2.13.2 Mounting the lifter unit (See Fig.24 to 26) (1) Insert the shafts f of the traverse mechanism assembly into the slide grooves g on the lifter unit. (2) Shift the hook of the lifter unit to the edge, and shift the slid- ing lever inside the side bracket unit to the edge as well.
  • Page 16 http://www.xiaoyu163.com 3 7 63 1515 0 3.2.13.3 Connection of the chassis (L) assembly and chassis (R) assembly (See Fig.27 to 29) (1) Attach the lower rod to the chassis (R) assembly. While Lifter unit shifting the rod toward the front side, mount the rod on the lifter unit.With the rod mounted, place the lifter unit on the chassis (R) assembly.
  • Page 17 http://www.xiaoyu163.com 3 7 63 1515 0 3.2.13.4 Mounting the top plate (See Fig.30 to 33) (1) Mount the upper rod on the lifter side l and set it on the rear of the top plate, then mount the other end of the upper rod to m.
  • Page 18 http://www.xiaoyu163.com 3 7 63 1515 0 3.2.13.5 Mounting the front slider and rear slider Stud (See Fig.34 and 35) E-Washer Position so (1) Position the unit with the rear side facing down, then rotate that the stud Front slider the third gear in the direction of the arrow (clockwise) until and right hole are lined up the lift arm comes to the position at which the holes are ex-...
  • Page 19 http://www.xiaoyu163.com 3 7 63 1515 0 3.2.13.6 Mounting the sensor board assembly (See Fig.36) (1) Attach the longer spring to the white resin, and attach the Sensor assembly fixing screws shorter spring temporarily to the sensor assembly bracket. (2) Mount the sensor assembly so that the shaft of the lift arm is inserted into the longer hole on the white resin located on the back of the sensor board assembly.
  • Page 20 http://www.xiaoyu163.com 3 7 63 1515 0 3.2.13.8 Pickup replacement procedure Main PCB assembly Third gear (See Fig.38 to 44) (1) Remove the bottom cover, front panel and top cover from the exterior section. (2) Unplug the flexible ribbon wire from connector CN502 the traverse mechanism PC board assembly.
  • Page 21 http://www.xiaoyu163.com 3 7 63 1515 0 Pickup Feed slide shaft Rack arm Fig.42 Pickup Shaft Holder Middle gear Middle gear L 13942296513 Chassis Fig.43 Enlarged diagram u163 Lifter unit lever Fig.44 (No.49787B)1-21 http://www.xiaoyu163.com...

  • Page 22: Adjustment

    http://www.xiaoyu163.com 3 7 63 1515 0 SECTION 4 ADJUSTMENT This service manual does not describe ADJUSTMENT. L 13942296513 u163 1-22 (No.49787B) http://www.xiaoyu163.com...

  • Page 23: Troubleshooting

    http://www.xiaoyu163.com 3 7 63 1515 0 SECTION 5 TROUBLESHOOTING Forced eject procedures (new circuit board) Magazine eject does not function. Completed RESET (Press EJECT for 3 sec.) Check that the trays remain no more than 10 mm inside the magazine. Are trays stored in the magazine? Check visually.
  • Page 24 http://www.xiaoyu163.com 3 7 63 1515 0 Troubleshooting (new circuit board) 5.2.1 Servicing procedures for error displays Error display Servicing procedure E1: Eject error The magazine cannot be ejected until S601 (magazine switch) turns off. Can the magazine be ejected? YES 1, NO 1 The magazine switch (S601) does not turn off even though the magazine is completely ejected.
  • Page 25 http://www.xiaoyu163.com 3 7 63 1515 0 5.2.2 Error code (new circuit board) The following error codes can be displayed and stored in up to 3 memories when the KD-SH909 or KD-LH2000 are used with the controller. Refer to the KD-SH909 or KD-LH2000 service manual regarding error code indication. 12CD changer models. Error code table Generating condition Description...

  • Page 26: No.49787B)1

    http://www.xiaoyu163.com 3 7 63 1515 0 Flow of functional operation until TOC read (new circuit board) Power ON • When the laser diode correctly Set Function to CD • When the pickup correctly moves emits to the inner area of the disc Disc inserted 2.1V TC94A14...
  • Page 27 http://www.xiaoyu163.com 3 7 63 1515 0 General section (new circuit board) Turn the power on with no magazine loaded. Reset Move the lifter until it The lifter moves up or Check the linear position comes to the STOP down and stops. sensor (VR601).
  • Page 28 http://www.xiaoyu163.com 3 7 63 1515 0 Feed section (new circuit board) Is the voltage output at Is the wiring for IC521 Is 5V present at IC581 Check CD 9V IC521 pin 40 3.3V or 0V? (57) (63) correct? pin 33? and 5V.
  • Page 29 http://www.xiaoyu163.com 3 7 63 1515 0 Signal processing section (new circuit board) Is the sound output from No sound from either Compare the L-ch and both channels (L, R)? channel. R-ch to locate the defective point. Normal Is 9V present at IC101 pin Check the vicinity of the (8)? Q981 audio power...
  • Page 30 http://www.xiaoyu163.com 3 7 63 1515 0 Forced eject procedures Magazine eject does not function. Completed RESET (Press EJECT for 3 sec.) Check that the trays remain no more than 10 mm inside the magazine. Are trays stored in the magazine? Check visually.
  • Page 31 http://www.xiaoyu163.com 3 7 63 1515 0 Troubleshooting 5.5.1 Servicing procedures for error displays Error display Servicing procedure E1: Eject error The magazine cannot be ejected until S601 (magazine switch) turns off. Can the magazine be ejected? YES 1, NO 1 The magazine switch (S601) does not turn off even though the magazine is completely ejected. 2 Check that the magazine is not engaged with the mechanism assembly.
  • Page 32 http://www.xiaoyu163.com 3 7 63 1515 0 5.5.2 Error code The following error codes can be displayed and stored in up to 3 memories when the KD-MX3000 is used with the controller. Refer to the KD-MX3000 service manual regarding error code indication. Error code table Generating condition Description...
  • Page 33 http://www.xiaoyu163.com 3 7 63 1515 0 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 $ 84 Microprocessor Disc inserted...
  • Page 34 http://www.xiaoyu163.com 3 7 63 1515 0 General section Turn the power on with no magazine loaded. Reset Move the lifter until it The lifter moves up or Check the linear position comes to the STOP down and stops. sensor (VR601). position (shipping position).
  • Page 35 http://www.xiaoyu163.com 3 7 63 1515 0 Feed section Is the voltage output at Is the wiring for IC521 Is 5V present at IC581 Check CD 9V IC521 pin u 5V or 0V? (90) (100) correct? pin 6? and 5V. Check the vicinity of IC521.
  • Page 36 http://www.xiaoyu163.com 3 7 63 1515 0 Signal processing section Is the sound output from No sound from either Compare the L-ch and both channels (L, R)? channel. R-ch to locate the defective point. Normal Is 9V present at IC101 pin Check the vicinity of the (8)? Q981 audio power...
  • Page 37 http://www.xiaoyu163.com 3 7 63 1515 0 L 13942296513 u163 (No.49787B)1-37 http://www.xiaoyu163.com...
  • Page 38 http://www.xiaoyu163.com 3 7 63 1515 0 L 13942296513 u163 VICTOR COMPANY OF JAPAN, LIMITED AV & MULTIMEDIA COMPANY MOBILE ENTERTAINMENT CATEGORY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan (No.49787B) Printed in Japan http://www.xiaoyu163.com...
  • Page 39 3 7 63 1515 0 SCHEMATIC DIAGRAMS CD CHANGER CH-X550,CH-X500 CD-ROM No.SML200401 Area suffix E ----------- Continental Europe L 13942296513 CH-X550 CH-X500 Contents Block diagram (New Circuit Board) Standard schematic diagrams (New Circuit Board) Printed circuit boards (New Circuit Board)
  • Page 40 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 41 http://www.xiaoyu163.com 3 7 6 3 1 5 1 5 0 Block diagram (New Circuit Board) IC521 DSP & DAC Synchronous Data signal Correction IC101 IC501 Mute Audio output slicer converter CD LPF circuit RF AMP demodulator RF amp. AGC amp. TMAX servo Servo...
  • Page 42 http://www.xiaoyu163.com Standard schematic diagrams (New Circuit Board) 3 7 6 3 1 5 1 5 0 System control / Audio output section CN902 R105 3.9k QNZ0095-001 C108 C101 C104 R101 R110 L-CH R103 2.2k 2.2k 470P 10/6.3 10/16 C102 R102 R104 R656 R657...
  • Page 43 http://www.xiaoyu163.com 3 7 6 3 1 5 1 5 0 CD servo control section IC581 C538 0.047 BD7961FM C537 0.047 C534 470P C533 470P D581 POS- TRAY+ POS+ TRAY- 1A3G-T1 X521 POSMO+ POSMO- R539 TRAYMO+ RFGC L521 TRAYMO- QQL244K-4R7Z R543 R581 4.3k C553...
  • Page 44 http://www.xiaoyu163.com Printed circuit boards (New Circuit Board) 3 7 6 3 1 5 1 5 0 Main board Main board Forward side Reverse side R941 C944 Q942 C945 R601 R603 R604 R605 R625 L601 X601 Q944 R943 Q901 Q943 CN902 Q902 C604 C603...
  • Page 45 http://www.xiaoyu163.com 3 7 6 3 1 5 1 5 0 Block diagram IC521 DSP & DAC Synchronous Data signal Correction IC101 IC501 Mute Audio output slicer converter CD LPF circuit RF AMP demodulator RF amp. AGC amp. TMAX servo Servo signal interface Sub code...
  • Page 46 http://www.xiaoyu163.com Standard schematic diagrams 3 7 6 3 1 5 1 5 0 System control / Audio output section CN902 QNZ0095-001 R103 C103 120P R102 R107 C105 R656 R657 330K C101 10/16 R101 L-CH 10/16 Q101 2SD1048/6-7/-X R660 AGND Q201 2SD1048/6-7/-X C201 R201...
  • Page 47 http://www.xiaoyu163.com CD servo control section 3 7 6 3 1 5 1 5 0 D585 D583 D584 DSK10C-T1 DSK10C-T1 DSK10C-T1 C538 0.047 IC581 C537 0.047 FAN8037 R598 C534 470P C533 470P QRT017J-R47 C585 TRACKING+ 100/10 X521 C584 0.047 FOCUS+ C582 R539 RFGC FOCUS-...
  • Page 48 http://www.xiaoyu163.com Printed circuit boards 3 7 6 3 1 5 1 5 0 Main board Main board Forward side Reverse side F941 C605 R601 C942 IC602 R943 D941 Q942 C606 CN902 C604 F901 C952 C941 R604 C603 C943 S601 L601 R605 R653 R661...
  • Page 49 http://www.xiaoyu163.com 3 7 63 1515 0 < M E M O > L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 50 http://www.xiaoyu163.com 3 7 63 1515 0 L 13942296513 u163 VICTOR COMPANY OF JAPAN, LIMITED AV & MULTIMEDIA COMPANY MOBILE ENTERTAINMENT CATEGORY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan Printed in Japan (No.49787BSCH) http://www.xiaoyu163.com...
  • Page 51 3 7 63 1515 0 PARTS LIST [ CH-X550,CH-X500 ] * All printed circuit boards and its assemblies are not available as service parts. Area suffix E ----------- Continental Europe L 13942296513 - Contents - 3- 2 Exploded view of general assembly and parts list (Block No.M1) 3- 4 CD changer mechanism assembly and parts list (Block No.MA)
  • Page 52 http://www.xiaoyu163.com 3 7 63 1515 0 Exploded view of general assmbly and parts list Block No. To mechanism assembly "a" L 13942296513 Silver u163 http://www.xiaoyu163.com...
  • Page 53 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 LV41843-001A LASER CAUTION LV20065-004B FITTING LV40706-003A CAUTION LABEL QYSDST2004Z SCREW 2mm x 4mm LV41266-001A SPACER LV10407-006A TOP COVER QYSSST2005M SCREW 2mm x 5mm(x2) VYSH101-031 SPACER...
  • Page 54 http://www.xiaoyu163.com 3 7 63 1515 0 CD changer mechanism assembly and parts list Block No. CH-X1100J2 Grease = JC-525 = MOBIL-1 = CFD-931 = JC-803B The edge part on the back side 41-3 41-5 41-4 41-5 41-2 41-1 41-4 42-2 42-3 42-1 L 13942296513...

  • Page 55: Ao Co

    http://www.xiaoyu163.com 3 7 63 1515 0 CD changer mechanism  Symbol No. Part No. Part Name Description Local Block No. [M][A][M][M] LV30123-002A RACK ARM  Symbol No. Part No. Part Name Description Local 1.7mm x QYSPSPT1722M MINI SCREW 2.2mm(x2) LV32438-001A P.S.SPRING QYSPSGT1425M TAP SCREW...
  • Page 56 http://www.xiaoyu163.com 3 7 63 1515 0 Electrical parts list Main board (New)  Symbol No. Part No. Part Name Description Local Block No. [0][1][0][0] C513 NCB31HK-103X C CAPACITOR 0.01uF 50V K  Symbol No. Part No. Part Name Description Local C514 NDC31HJ-5R0X C CAPACITOR...
  • 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 R106 NRSA63J-392X MG RESISTOR 3.9kΩ 1/16W J R628 NRSA63J-473X MG RESISTOR 47kΩ 1/16W J R107 NRSA63J-103X MG RESISTOR 10kΩ...
  • 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 Q583 DTC114EKA-X TRANSISTOR C551 QERF0JM-107Z E CAPACITOR 100uF 6.3V M Q602 2SC2412K/R/-X TRANSISTOR C552 NCB31HK-103X C CAPACITOR 0.01uF 50V K Q901 2SA1037AK/R/-X...
  • 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 R544 NRSA63J-225X MG RESISTOR 2.2MΩ 1/16W J CN902 QNZ0095-001 CONNECTOR R581 NRSA63J-122X MG RESISTOR 1.2kΩ 1/16W J CN903 QGF1013F1-10X CONNECTOR...
  • Page 60 http://www.xiaoyu163.com 3 7 63 1515 0 Packing materials and accessories parts list Block No. A1,A2,A3, A4,A5 KIT: A9, A10 L 13942296513 u163 3-10 http://www.xiaoyu163.com...
  • Page 61 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 LVT0848-001A INST BOOK ENG GER FRE X500 LVT0975-002B INST BOOK ENG GER FRE X550 LVT0848-002A INST BOOK SPA ITA DUT X500 LVT0975-003B INST BOOK...

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Ch-x500

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