JVC CH-X400 Service Manual

Compact disc automatic chnager

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Service manual (48 pages)

Instructions manual (6 pages)

Instructions manual (6 pages)

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Summary of Contents for JVC CH-X400

Page 1 CH-X400 / CH-X450 3 7 63 1515 0 SERVICE MANUAL COMPACT DISC AUTOMATIC CHANGER CH-X400 / CH-X450 L 13942296513 Area Suffix CH-X400 Northern America Continental Europe CH-X450 Other areas Contents Safety precaution Troubleshooting 1-20 Important for laser products Wiring connections...
Page 2: Safety Precaution
CH-X400/CH-X450 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: Important For Laser Products
CH-X400/CH-X450 3 7 63 1515 0 Important for laser products 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 4: Location Of Main Parts
CH-X400/CH-X450 3 7 63 1515 0 Location of main parts Main board ass'y Mechanism ass'y wire Bottom view Positioning motor ass'y Jack board ass'y Sensor board ass'y Mechanism board ass'y Top side view L 13942296513 Mechanism & lifter unit...
Page 5: Removal Of Main Parts
CH-X400/CH-X450 3 7 63 1515 0 Removal of main parts Disassembling procedures 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.
Page 6: Removing The Top Cover
CH-X400/CH-X450 3 7 63 1515 0 Removing the top cover 1. Pull out the dampers, being careful not to damage. When reattaching a damper, insert your finger to push out the center of the damper to mount it on the damper shaft, as shown in Fig.
Page 7: Removing The Main Pcb Assembly
CH-X400/CH-X450 3 7 63 1515 0 Removing the fittings 1. Remove the fixing screw (5). 2. Unhook the two catches (a) on the top edge of the fitting, then unhook the catches (b) at the left/right bottom edges. Catches (a)
Page 8 CH-X400/CH-X450 3 7 63 1515 0 Changer mechanism section Sensor assembly unit 1. Remove the two screws (1) securing the sensor assembly Sensor unit. assembly 2. Unhook the springs on the back of the sensor assembly unit from the holes on the chassis.
Page 9: Top Plate
CH-X400/CH-X450 3 7 63 1515 0 Rear slider Can be removed at the stud position 1. Position the unit with the front section facing down. Rotate (at the widest hole) the third gear located on the back of the main unit in the Remove direction of the arrow (clockwise).
Page 10 CH-X400/CH-X450 3 7 63 1515 0 Lifter unit 1. Unhook the elevator spring located on the front side of the unit. (Be sure to first unhook the spring from the lifter side as shown in the upper part of the diagram.) 2.
Page 11: Pickup Assembly
CH-X400/CH-X450 3 7 63 1515 0 Pickup assembly 1. Remove the three mechanism PCB fixing screws (6) located on the back of the traverse mechanism. 2. Disconnect the two feed motor wires (blue and white), two Pickup flexible PCB...
Page 12: Tray Motor
CH-X400/CH-X450 3 7 63 1515 0 Tray motor 1. Remove the two screws (11) securing the tray motor. 2. Remove the two screws (12) to remove the tray motor assembly from the tray motor holder. Separation of the chassis L assembly and ahassis R assembly 1.
Page 13 CH-X400/CH-X450 3 7 63 1515 0 Precautions on reassembling When reassembling, also refer to the disassembling procedures. Pickup assembly Attached to chassis Mounting the traverse mechanism 1. When mounting the pickup assembly, attach the feed slide shaft assembly to the traverse chassis.
Page 14 CH-X400/CH-X450 3 7 63 1515 0 Mounting the lifter unit 1. Insert the shafts (B) of the traverse mechanism assembly into the slide grooves (F) on the lifter unit. 2. Shift the hook of the lifter unit to the edge, and shift the sliding lever inside the side bracket unit to the edge as well.
Page 15 CH-X400/CH-X450 3 7 63 1515 0 Connection of the chassis "L" assembly and chassis "R" assembly 1. Attach the lower rod to the chassis "R" assembly. While shifting the rod toward the front side, mount the rod on the lifter unit.
Page 16 CH-X400/CH-X450 3 7 63 1515 0 Mounting the top plate 1. Mount the upper rod on the lifter side (j) and set it on the rear of the top plate, then mount the other end of the upper rod to (k).
Page 17 CH-X400/CH-X450 3 7 63 1515 0 Mounting the front slider and rear slider 1. Position the unit with the rear side facing down, then rotate the third gear in the direction of the arrow (clockwise) until the lift arm comes to the position at which the holes are exposed, as shown in Fig.
Page 18 CH-X400/CH-X450 3 7 63 1515 0 Mounting the sensor PCB assembly 1. Attach the longer spring to the white resin, and attach the 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 PCB assembly.
Page 19: Jc12 Forced Eject Procedures
CH-X400/CH-X450 3 7 63 1515 0 JC12 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 20: Troubleshooting
CH-X400/CH-X450 3 7 63 1515 0 Troubleshooting Servicing procedures for CH-X400 & CH-X450 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 21 CH-X400/CH-X450 3 7 63 1515 0 CH-X400 & CX-H450 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.
Page 22 CH-X400/CH-X450 3 7 63 1515 0 Flow chart for reading TOC (Table of contents) Power ON • When the laser diode correctly Set Function to CD • When the pickup correctly moves emits to the inner area of the disc...
Page 23: General Section
CH-X400/CH-X450 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).
Page 24: Feed Section
CH-X400/CH-X450 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.
Page 25 CH-X400/CH-X450 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...
Page 26: Wiring Connections
CH-X400/CH-X450 Wiring connections 3 7 63 1515 0 Sensor Ass'y CN503 CN904 CN601 WJM0017-002A Connect Board CN903 Spindol Motor Ass'y Feed Motor Ass'y Tray Motor Ass'y Mechanism Board Ass'y (SURFACE SIDE) L 13942296513 CN501 CN502 Pick Up Ass'y LV30450-003A...
Page 27: Pickup Replacement Procedure
CH-X400/CH-X450 3 7 63 1515 0 Pickup replacement procedure Third gear 1. Remove the bottom cover, front panel and top cover from the exterior section. Main PCB 2. Unplug the flexible ribbon wire from connector CN502 assembly on the traverse mechanism PC board assembly.
Page 28 CH-X400/CH-X450 3 7 63 1515 0 10. Remove the two rack arm fixing screws (4). Grounding point Pull out the feed slide shaft. Remove the shaft holder fixing screw (5). Pickup 11. When mounting the lifter bracket after replacing the pickup, shift the lifter unit lever approx.
Page 29: Descriprion Of Major Ics
CH-X400/CH-X450 3 7 63 1515 0 Descriprion of major ICs BA5926S(IC581):CD/POSITION/TRAY DRIVER 1.Terminal layout & Block diagram BIAS 13.3K x3/8 x3/8 13.3K LEVEL SHIFT LEVEL SHIFT LEVEL SHIFT T.S.D LEVEL SHIFT LEVEL SHIFT 13.3K LEVEL SHIFT x3/8 x3/8 13.3K L 13942296513 T.S.D: Thermal shut down circuit...
Page 30 CH-X400/CH-X450 3 7 63 1515 0 UPD780058GC-067(IC601):CPU 1.Terminal layout 2.Block diagram TO0/P30 TI00/INTP0/P00 16-bit TIMER/ PORT0 P01-P06 EVENT COUNTER1 TI01/INTP1/P01 PORT1 TO1/P31 P10-P17 8-bit TIMER/ TI1/P33 EVENT COUNTER1 TO2/P32 PORT2 P20-P27 8-bit TIMER/ TI2/P34 EVENT COUNTER2 P30-P37 PORT3 WATCDOG TIMER...
Page 31 L 13942296513 Unused output port PWR SW CRTL+B detect input BUSOUT JVC bus output BUS INT JVC bus com start interrupt input CD ON CD power control Hi:on EJECT Eject key input PWR CONT Power supply control output Hi:on Unused output port...
Page 32: Pin Function
CH-X400/CH-X450 3 7 63 1515 0 TC9462F(IC521): DSP&DAC 1.Pin layout & Block Diagram 50 V Servo 1bit 49 TRO control Clock 48 FOO generator TEZI 46 TEI 45 TSIN TEST1 44 SBAD Digital equalizer TEST2 43 FEI Address circuit...
Page 33 CH-X400/CH-X450 3 7 63 1515 0 2.Pin Function TC9462F(2/2) Symbol Function Pin No. RFRP signal center level input terminal RFCT RFRP zero cross input terminal RFZI RF ripple signal input terminal RFRP Focus error signal input terminal Sub-beam adder signal input terminal SBAD Test input terminal Normally, keep at "vref"...
Page 34: Block Diagram
CH-X400/CH-X450 3 7 63 1515 0 TA2109F-X (IC501) : RF amp. 1. Pin layout 2. Block diagram 15k ohm 30k ohm 7.67k ohm 15k ohm 10k ohm SBAD 10k ohm 20uA 50k ohm 30k ohm 20pF 36pF 10k ohm...
Page 35 CH-X400/CH-X450 3 7 63 1515 0 BA15218F-XE (IC101) : CD LPF 1. Pin layout OUT1 1 8 Vcc -IN1 2 7 OUT2 +IN1 3 6 -IN2 VEE 4 5 +IN2 2. Block diagram OTHER L 13942296513 Q114 OUTPUT u163 1-35 http://www.xiaoyu163.com...
Page 36 CH-X400/CH-X450 3 7 63 1515 0 BR24CO1AF(IC604):EP ROM 1.Terminal Layout 2.Block Diagrram VCC TEST SCL SDA 1,024bit EEPROM Array 8 VCC BR24C01AF 8bit 7bit Slave Word Data Address 7 TEST 7bit Decoder Address Register Register START STOP 6 SCL Control logic High Voltage Gen.
Page 37 CH-X400/CH-X450 3 7 63 1515 0 HD74HC126FP-X (IC651) : Buffer 1.Terminal layout 3.Pin function Input Outout 2.Block diagram Output Input Output L 13942296513 Sample as Load Circuit 1 Output Sample as Load Circuit 1 Output Sample as Load Circuit 1 IC-PST600M/G/-W1197(IC602):Reset 1.Terminal layout...
Page 38 CH-X400 / CH-X450 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,Japan Printed in Japan (No.49585) 200012(V) http://www.xiaoyu163.com...
Page 39 NEGATIVE • When replacing the fuse, use one with the specified rating for !"#$%&'()*+,-./&0123!"#45 • • this unit. If the fuse blows frequently, consult your nearest JVC !"#$%&'()' JVC !"#$%&'( car audio dealer. PRECAUTIONS !"#$ • Car’s Internal Temperature •...
Page 40 http://www.xiaoyu163.com !"#$%& When installing the unit horizontally WOI « …—uBÐ “UN'« VOÂdð bMŽ WOI « …—uBÐ “UN'« VOÂdð bMŽ WOI « …—uBÐ “UN'« VOÂdð bMŽ WOI « …—uBÐ “UN'« VOÂdð bMŽ WOI « …—uBÐ “UN'« VOÂdð bMŽ !"#$%&'()*+,-( .a) 3 7 6 3 1 5 1 5 0 1.
Page 41: Location Of Controls
* Are the units connected correctly? After checking, press and !"#$%&'()*+,-./0123456789 hold the 0 EJECT button for a few seconds to reset this unit. 0 EJECT !"#$%&'()*+,-./0123 (0 EJECT) If the problem still persists, consult the JVC authorized dealer. !"#$%&'( Indication Meaning RESET1 RESET1...
Page 42: Electrical Connections
U? Ð d? N ? Â ÂU? E ? ½ p? K ? ² ? 9 ô pð—UOÝ Ê« WÃUŠ w ÆVÃUÝ i¹—Qð ¨XÃu a voltage inverter which can be bought from a JVC car audio dealer. !" JVC !"#$%&'...
Page 43 http://www.xiaoyu163.com !"# ! HANDLING MAGAZINES AND COMPACT DISCS !"#$ How to handle the magazines 3 7 6 3 1 5 1 5 0 • Care in handling the magazines • • – Do not carry the magazine with its inserting slot facing down !"#$%&'()*+,-!"./0 –...
Page 44 The compulsory eject hole and protective seal. qJý qJý qJý qJý qJý !"#$%&' qJý qJý qJý qJý qJý ÆwÁ«uÃ« r²)« lÄ Í—U³łô« Ã«dšô« VIŁ !"#$%&'( JVC !"#$%&'( Should the problem still persist, consult the JVC authorized dealer. Æhšd*« qOÂË dA²Ý« ¨WLzUÁ WKJA*« XOIÐ «–« http://www.xiaoyu163.com...
Page 45 http://www.xiaoyu163.com 3 7 6 3 1 5 1 5 0 TC9462F Synchronous Data Correction signal Mute Audio output slicer circuit converter TA2109F demodulator RF amp. AGC amp. TMAX servo servo signal interface Sub code decording Focus Focus eror servo Micon amp.
Page 46 CH-X400/CH-X450 3 7 63 1515 0 < M E M O > L 13942296513 u163 http://www.xiaoyu163.com...
Page 47 CH-X400/CH-X450 3 7 6 3 1 5 1 5 0 Standard schematic diagram D583 DSK10C-T1 D585 D584 DSK10C-T1 DSK10C-T1 R584 C549 0.047 C547 0.047 C552 0.01 C551 C546 0.047 47/6.3 R543 RFGC 3.3K C573 100/6.3 POS+ AGND TRAY- POS-...
Page 48 CH-X400/CH-X450 CH-X400/CH-X450 3 7 6 3 1 5 1 5 0 CN902 QNZ0095-001 R103 C103 120P R102 R107 C105 R656 R657 330K C101 10/10 R101 L-CH 10/16 Q101 KTC3265/Y/-X R660 AGND Q201 KTC3265/Y/-X C201 R201 R-CH R202 10/16 R207...
Page 49: Printed Circuit Board
CH-X400/CH-X450 Printed circuit board 3 7 63 1515 0 VR601 8Pin connector board Volume board WHITE BLACK B691 B993 B992 R112 C112 B991 PICK CN501 CN502 Mechanism board R618 R620 C509 R511 C508 R512 C507 R583 R510 IC501 C510...
Page 50: Parts List
3 7 63 1515 0 PARTS LIST [ CH-X400 ] [ CH-X450 ] * All printed circuit boards and its assemblies are not available as service parts. Areas suffix CH-X400 E ----------- Continental Europe L 13942296513 J ------------- Northern America...
Page 51: Exploded View Of General Assembly And Parts List
CH-X400/CH-X450 Exploded view of general assembly and parts list 3 7 63 1515 0 Block No. Jack board L 13942296513 Silver u163 http://www.xiaoyu163.com...
Page 52 CH-X400/CH-X450 3 7 63 1515 0 Parts list (General assembly) Block No. M1MM Item Parts number Parts name Q'ty Description Area --------------- CD CHANGER MECHA LV41843-001A LASER CAUTION CH-X400E,X450U LV20065-002B-SK FITTING LV40706-003A CAUTION LABEL QYSDST2004Z SCREW LV10407-004A TOP COVER...
Page 53: Cd Changer Mechanism Assembly And Parts List
CH-X400/CH-X450 CD changer mechanism assembly and parts list 3 7 63 1515 0 Block No. LEN-320M Grease No.: JC-525 CFD-931 Bottom side Bottom side Bottom side CFD-931 The edge part on the back side Both CFD-9 31 side LEN- 320M...
Page 54 CH-X400/CH-X450 3 7 63 1515 0 Parts list (CD changer mechanism) Block No. M2MM Item Parts number Parts name Q'ty Description Area LV30928-201A TRA MECHA UNIT LV30096-002A CHASSIS(L) ASSY LV30097-001A CHASSIS(R) ASSY QYSDST2004Z SCREW QYSDST2004Z SCREW LV40129-003A MOTOR BKT ASS'Y...
Page 55 CH-X400/CH-X450 3 7 63 1515 0 Parts list (CD changer mechanism) Block No. M2MM Item Parts number Parts name Q'ty Description Area LV40474-002A ELEVATOR SPRING OPTIMA-720L1 C.D PICK (CAR) FF050SK11170SA2 DC MOTOR QUB456-04A2A2 WIRE(F.MOTOR) QUB459-05A2A2 WIRE(F.MOTOR) LV40155-001A MIDDLE GEAR LV40156-001A S.S.
Page 56 CH-X400/CH-X450 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 QERF1CM-106Z E CAPACITOR 10MF 20% 16V C 605 QERF0JM-476Z E CAPACITOR 47MF 20% 6.3V...
Page 57 CH-X400/CH-X450 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 Q 921 2SC2412K/R/-X TRANSISTOR R 602 NRS181J-103X MG RESISTOR Q 922...
Page 58: Packing Materials And Accessories Parts List
CH-X400/CH-X450 3 7 63 1515 0 Packing materials and accessories parts list Block No. A1 A7 Block No. KIT: A11,A12 L 13942296513 P5 1/2 P5 1/2 u163 http://www.xiaoyu163.com...
Page 59: Parts List (Accessories)
CH-X400/CH-X450 3 7 63 1515 0 Parts list (Packing) Block No. M3MM Item Parts number Parts name Q'ty Description Area QPA01703505P POLY BAG INSTRUCTIONS QPA00801205 POLY BAG SCREW KIT QPC03005120P POLY BAG LV32482-001A CARTON CH-X450U LV32480-001A CARTON CH-X400E/J LV10504-001A...

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JVC CH-X400 Service Manual

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