JVC KD-SHX751 Service Manual

Cd/sd receiver

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Instruction manual (62 pages)

Manual de instrucciones (171 pages)

Installation & connection manual (4 pages)

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Page 1: Table Of Contents
SERVICE MANUAL CD/SD RECEIVER MA163 2005 KD-SHX751 Area suffix E ------------- Southern Europe EX ------------ Northern Europe EY ------------- Eastern Europe EU ------------------------- Turkey SOURCE KD-SHX751 DISP BACK BAND MENU PICT TABLE OF CONTENTS PRECAUTIONS ............... 1-3 SPECIFIC SERVICE INSTRUCTIONS .
Page 2 SPECIFICATION AUDIO AMPLIFIER SECTION Maximum Power Output Front 52 W per channel Rear 52 W per channel 22 W per channel into 4 Ω, 40 Hz to 20 000 Hz at no more than 0.8% total Continuous Power Output (RMS) Front harmonic distortion.
Page 3: Precautions
SECTION 1 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 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 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. Avoid direct exposure to beam. procedures other than those specified here in may result in 3.CAUTION : There are no serviceable parts inside the hazardous radiation exposure.
Page 6: Specific Service Instructions
SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS. 1-6 (No.MA163)
Page 7: Disassembly
SECTION 3 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 Front panel assembly panel assembly. (2) Remove the front panel assembly. Detach button Fig.1 3.1.2 Removing the heat sink (See Fig.2)
Page 8 3.1.3 Removing the top chassis assembly (See Figs.3 to 6) • Prior to performing the following procedures, remove the heat Bottom chassis assembly sink. Reference: Remove the front panel assembly as required. (1) From the bottom side of the main body, remove the two screws C attaching the top chassis assembly to the bottom chassis assembly.
Page 9 3.1.4 Removing the front chassis assembly (See Figs.7 and 8) • Prior to performing the following procedure, remove the front Top chassis assembly panel assembly, heat sink and top chassis assembly. (1) From the both sides of the top chassis assembly, remove the two screws F attaching the front chassis assembly.
Page 10 3.1.6 Removing the main board (See Figs.10 and 11) • Prior to performing the following procedures, remove the front Rear bracket panel assembly, heat sink and top chassis assembly. (1) From the rear side of the bottom chassis assembly, remove the two screws H attaching the rear bracket to the bottom chassis assembly.
Page 11 3.1.8 Removing the front door mechanism assembly (See Fig.13) • Prior to performing the following procedures, remove the front Front door mechanism assembly Bottom chassis panel assembly, heat sink, top chassis assembly and main board. (1) From the top side of the bottom chassis assembly, remove the screw N attaching the FPC guide to the bottom chassis.
Page 12 CD mechanism assembly section • Remove the CD mechanism assembly from the main body. (See "3.1.5 Removing the CD mechanism assembly".) 3.2.1 Removing the mechanism control board (See Fig.1) (1) From the bottom side of the CD mechanism assembly, sol- CD mechanism assembly der the short sections on the flexible wire.
Page 13 3.2.2 Removing the top cover (See Fig.2) (1) From the back side of the CD mechanism assembly, re- move the two screws B attaching the top cover. (2) Take out the top cover in an upward direction. Reference: When attaching the top cover, set the sections c of the top cov- er under the bending sections d of the chassis base 2.
Page 14 3.2.4 Removing the clamper unit (See Figs.5 and 6) • Remove the mechanism control board, top cover and mecha- Clamper unit 2 nism section. (1) From the bottom side of the mechanism section, remove the clamper 2 spring. (See Fig.5.) (2) Release section e of the clamper spring from the bending section of the CD chassis assembly.
Page 15 Clamper 2 spring CD chassis assembly Clamper unit 2 Fig.7 Notch Clamper unit 2 Fig.8 Clamper unit 2 Clamper spring Fig.9 (No.MA163)1-15...
Page 16: Cd Chassis Assembly Fig
3.2.6 Removing the front unit (See Figs10 to 12) • Remove the mechanism control board, top cover and mecha- nism section. Flexible wire (1) From the bottom side of the mechanism section, remove the double-stick tape fixing the flexible wire. (See Fig.10.) (2) From the top side of the mechanism section, remove the screw D attaching the front unit 2.
Page 17: Cd Chassis Assembly Fig
3.2.7 Removing the loading arm assembly (See Figs.13 and 14) • Remove the mechanism control board, top cover, mechanism Loading arm assembly section and front unit 2. (1) From top side of the mechanism section, move the loading arm assembly in the direction of the arrow. (See Fig.13.) (2) Release the projections from the right and left joints (m, n) of the CD chassis assembly.
Page 18 3.2.8 Removing the rod (L), rod (R) and roller assembly (See Figs.15 and 16) • Remove the mechanism control board, top cover, mechanism Collar Collar section, front unit and loading arm assembly. (1) From the bottom side of the loading arm assembly, release the rod (L) and (R) from the joints r.
Page 19 3.2.9 Removing the CD pickup (See Figs.17 to 19) • Remove the mechanism control board. CD mechanism assembly (1) From the bottom side of the CD mechanism assembly, turn the feed gear in the direction of the arrow to move the CD pickup assembly outwards.
Page 20: Clamper Unit
3.2.10 Removing the spindle motor (See Fig.20) • Remove the mechanism control board, top cover, mechanism T. table assembly section and clamper unit. (1) From the top side of the mechanism section, remove the T.table assembly and washer from the spindle motor. Washer (2) Remove the two screws H attaching the spindle motor.
Page 21 3.2.12 Removing the SW board and rest SW board (See Fig.23) • Remove the mechanism control board. CD mechanism assembly (1) From the bottom side of the CD mechanism assembly, re- move the screw L attaching the SW board. (2) Remove the screw M attaching the rest SW board. SW board Rest SW board Fig.23...
Page 22: 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 EXTDV001-20P × 1...
Page 23 (2) Pressing both the DISP button and BAND button. (3) Set to service mode CURSOR button : BACK CURSOR button : NEXT OK button : SET CURSOR SOURCE KD-SHX751 SERVICE MODE (MENU) SERVICE MODE RUNNING MODE DISP DISP BACK DATA CLEAR BAND...
Page 24 CD DATA READ ADJ NOW ADJ INT OTHERS ADJ NOW ADJ NOW FEB ** FEO ** TEB ** RFG** The auto adjustment value of FGA ** TEO ** TGA ** survo at now ADJ INT ADJ INT FEB ** FEO ** TEB ** RFG** The auto adjustment value of FGA ** TEO ** TGA ** survo at initial...
Page 25 PICTURE CLEAR NOW... PICTURE CLEAR A.DSP ERROR CLEAR NOW... A.DSP ERROR CLEAR T.DSP ERROR CLEAR NOW... T.DSP ERROR CLEAR ROM COLLECTION MAIN DATA CLEAR MAIN DATA CLEAR NOW... MAIN DATA CLEAR DSP TUNER S MODE VER=V*** SPI=** PI=**** ***.** SMI=***% PTY=** ******* MP=***% TP/TA=*/* EON ADJ=***% MS/DI=*/* STERO BW=*...
Page 26 SMTH1=****** SMTH1=****** DEFAULT * BACK Select the value with ENTER : OK "CURSOR" button. SMTH2=****** SMTH2=****** DEFAULT * BACK Select the value with ENTER : OK "CURSOR" button. MP=****** MP=****** DEFAULT * BACK Select the value with ENTER : OK "CURSOR"...
Page 27 7.FM IF COUNTER 7.FM COUNTER 97.9MHz 70dBuV 0% 97.9MHz 70dBuV 0% Adjustment NG or No Signal 8.AM S.METER 8.AM S.METER 999kHz 26dBuV 0% 999kHz 26dBuV 0% High or Low or No Signal 9.AM S.METER 9.AM S.METER 999kHz 56dBuV 0% 999kHz 56dBuV 0% High or Low or No Signal 10.AM IF COUNTER 10.AM IF COUNTER...
Page 28 4.2.2 Error codes of panel mechanism PANEL ANGLE PANEL CLOSE MAIN BODY 10 degrees 20 degrees 30 degrees OPEN OPEN ERROR CODE ERROR CODE Details (SERVICE MODE) (NORMAL) OPEN error 0A01 1.Time out error by OPEN position cannot detect. CLOSE error (ANGLE 1 error) 0B06 1.Time out error by ANGLE 1 position cannot detect.
Page 29: Troubleshooting
SECTION 5 TROUBLESHOOTING Feed section Is the wiring for IC601 Is 8V present at IC681 Is 2V at IC601 pin 63? Check CD8V. pin 63 correct? pins 3 and 12? Check the vicinity of IC601. Is 4V present at both Is 2V present at IC681 Check the feed motor sides of the feed motor?
Page 30 Signal processing section 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 IC165 Is 9V present at IC901 Check IC901 and its /IC265 pin 16? pin 10? peripheral circuits.
Page 31 Maintenance of laser pickup 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. power cord.
Page 32 16 PIN CORD DIAGRAM 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 16 YL MEMORY YL 4 15 OR/WH 8 BK REMOTE 6 BL/WH 13 BR 3 GN 11 GN/BK 2 VI 10 VI/BK...
Page 33 (No.MA163)1-33...
Page 34 Victor Company of Japan, Limited AV & MULTIMEDIA COMPANY CAR ELECTRONICS CATEGORY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan (No.MA163) Printed in Japan...
Page 35: Parts List
PARTS LIST [ KD-SHX751 ] * All printed circuit boards and its assemblies are not available as service parts. KD-SHX751 Area suffix E ------------- Southern Europe EX ------------ Northern Europe EY ------------- Eastern Europe EU ------------------------- Turkey - Contents - 3- 2 Exploded view of general assembly and parts list (Block No.M1)
Page 36 Exploded view of general assembly and parts list Block No. Switch board 69 32...
Page 37 Main board...
Page 38 General Assembly Block No. [M][1][M][M] Symbol No. Part No. Part Name Description Local  GE20156-001A GEAR BKT UNIT LV40847-002A SPACER FSYH4036-100 SHEET GE30968-002A LEVER BKT UNIT GE30964-003A LOWER LEVER ASS LV35330-002A FRONT BKT ASSY QNZ0664-003 CAR CONNECTOR QAL0587-001 FSYH4036-100 SHEET LV35484-001A DETACH LEVER GE30973-001A...
Page 39  Symbol No. Part No. Part Name Description Local LV41843-002A LASER CAUTION GE40218-011A SHEET (x2) VYTA500-001 PIN CAP (x4) QJJ010-040904-E SIN CR C-C WIR QUQ105-3003AB-E FFC WIRE 30pin 3cm LV43349-002A POWE IC BKT LV43373-002A REG IC BKT QMFZ047-150-T FUSE  QAM0548-001 PIN CORD ASSY QAM0547-001...
Page 40 CD mechanism assembly and parts list Block No. Grease FMU-JC3-2D = JVS-1003 = MOBIL-1 = JVG-31N = JC-803B 61 38 11.10mm 0.10mm 82 82 Inside 1.2 0.1mm After set pick up apply grease The parts without symbol number are not service.
Page 41 CD mechanism Block No. [M][B][M][M] Symbol No. Part No. Part Name Description Local  VKZ4539-056 MINI SCREW (x5) LV10857-002A CHASSIS FRAME 2 LV30225-0J6A SPACER (x2) LV35272-001A DAMPER(F) (x2) LV35273-001A DAMPER(R) QYSPSTU2045MA TAP SCREW M2 x 4.5mm(x3) LV43039-001A DAMPER SP.(R) LV43849-001A DAMPER SP(F2) (x2) LV43041-001A...
Page 42: Clamper Unit
 Symbol No. Part No. Part Name Description Local LV43011-001A THRUST SPRING QYSPSFT2040ZA TAP SCREW M2 x 4mm LV21604-004A L.S.HOLDER 1 VKZ4539-056 MINI SCREW (x2) LV34582-002A L.S.HOLDER 2 VKZ4539-056 MINI SCREW (x2) LV34581-002A SUB GUIDE VKZ4539-056 MINI SCREW (x3) LV34915-001A SW LEVER LV43898-001A S.L.SPRING...
Page 43: Electrical Parts List
Electrical parts list Main board  Symbol No. Part No. Part Name Description Local Block No. [0][1] D713 MA8056/M/-X Z DIODE  Symbol No. Part No. Part Name Description Local D714 MA8056/M/-X Z DIODE D715 MA8056/M/-X Z DIODE D716 MA8056/M/-X Z DIODE IC10 SAF7730HV/N224A...
Page 44  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local NCB31EK-223X C CAPACITOR 0.022uF 25V K C978 QEKJ0JM-107Z E CAPACITOR 100uF 6.3V M NCB31HK-103X C CAPACITOR 0.01uF 50V K C983 QEKJ1CM-107Z E CAPACITOR 100uF 16V M NCB31HK-103X C CAPACITOR...
Page 45  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local C2705 QEKJ1HM-225Z E CAPACITOR 2.2uF 50V M NRSA63J-331X MG RESISTOR 330Ω 1/16W J C2720 QTE1C55-226Z E CAPACITOR 22uF 16V NRSA63J-101X MG RESISTOR 100Ω...
Page 46  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local R748 NRSA63J-682X MG RESISTOR 6.8kΩ 1/16W J R976 NRSA63J-153X MG RESISTOR 15kΩ 1/16W J R749 NRSA63J-102X MG RESISTOR 1kΩ 1/16W J R977 NRSA63J-333X MG RESISTOR 33kΩ...
Page 47  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local R2608 NRSA63J-102X MG RESISTOR 1kΩ 1/16W J R4112 NRSA63J-470X MG RESISTOR 47Ω 1/16W J R2621 NRSA63J-0R0X MG RESISTOR 0Ω 1/16W J R4113 NRSA63J-331X MG RESISTOR 330Ω...
Page 48  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local K722 NQR0022-005X FERRITE BEADS C801 NCB31CK-473X C CAPACITOR 0.047uF 16V K K723 NQR0022-005X FERRITE BEADS C802 NBE20JM-106X TA E CAPACITOR 10uF 6.3V M QZW0010-001 STYLE PIN C804...
Page 49 Mechanism control board  Symbol No. Part No. Part Name Description Local Block No. [0][3] R819 NRSA63J-473X MG RESISTOR 47kΩ 1/16W J R820 NRSA63J-473X MG RESISTOR 47kΩ 1/16W J  Symbol No. Part No. Part Name Description Local R821 NRSA63J-102X MG RESISTOR 1kΩ...
Page 50  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local C630 NCB31EK-333X C CAPACITOR 0.033uF 25V K R514 NRSA63J-473X MG RESISTOR 47kΩ 1/16W J C631 NCS31HJ-471X C CAPACITOR 470pF 50V J R515 NRSA63J-473X MG RESISTOR 47kΩ...
Page 51  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local R606 NRSA63J-220X MG RESISTOR 22Ω 1/16W J R609 NRSA63J-473X MG RESISTOR 47kΩ 1/16W J CN502 QGF0501F1-08X CONNECTOR FFC/FPC (1-8) R611 NRSA63J-473X MG RESISTOR 47kΩ...
Page 52 Packing materials and accessories parts list Block No. No additional / supplemental order of WARRANTY CARDs are available. A2 A3 A4 A5 A6 A7 KIT: A8 A9 A10 A11 A12 3-18...
Page 53 Packing and Accessories Block No. [M][3][M][M] Symbol No. Part No. Part Name Description Local  LVT1311-002A INST BOOK SPA GRE POR SHX751E LVT1311-007A INST BOOK SPA TUR PER SHX751EU LVT1311-004A INST BOOK DUT SWE DAN FIN SHX751EX LVT1311-006A INST BOOK POL CZE HUN SHX751EY LVT1311-001A...
Page 54: No.ma163)1
SCHEMATIC DIAGRAMS CD/SD RECEIVER KD-SHX751 CD-ROM No.SML200504 Area suffix E ------------- Southern Europe EX ------------ Northern Europe EY ------------- Eastern Europe EU ------------------------- Turkey SOURCE KD-SHX751 DISP BACK BAND PICT MENU Block diagram Standard schematic diagrams Printed circuit boards 2-7 to 9 No.MA163SCH...
Page 55: Safety Precaution
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 56: Block Diagram
Block diagram CD servo control section DSP section FOCUS+ FOCUS- PANEL TRACKING+ CODE1, CODE2, CODE3 TRACKING- BUS0 to BUS3 VF1, VF2 SWITCH BUCK IC573 VT1, VT2 VF1,VF2, VT1,VT2 MD, LD MDI,LDO, VREF X571 PICK UP IC601 DSPRST CLOCK GEN. CD RF Q991 PMKICK &...
Page 57 Standard schematic diagrams DSP section TP17 TP18 0.022 10/6.3 DIRNLRCLK DIRNBCK DIRNSDINA TP19 TP20 10/16 IC10 220p SAF7730HV/N224A QAX0781-001Z QAM0556-001 R9000 10/16 CDDATA CDLRCK R9004 CDSCK 0.01 MA111-X MA111-X NQR0129-003X LINE.IN-L LINE.IN-R 47/16 SUBWFER 4.7/6.3 390p 100/6.3 CODE1 0.001 CODE2 0.001 CODE3 4.7/6.3...
Page 58 Main section 100p C1403 100p C2403 R3810 C3403 0.047 CN341 IC381 IC382 R3805 QGA2006C1-04 NJM4565V-X NJM2160BV-X LINE.IN-L LINE.IN-GND LINE.IN-R R3814 SUBWFER C3803 R3801 R3802 4.7/25 C3817 R1604 100/10 3.9k R1601 R3811 R1801 F-LCH- 4.7k R3815 C1603 C1651 R1651 390p R1605 C1720 C1801 C1802...
Page 59 Sound mix section IC401 AK7740VT IC411 C4134 JCV8009-W 100/10 L4130 R4130 C4130 R4100 IC412 R4101 AK4385ET-X BK-LCH R4102 C4131 47/6.3 BK-RCH R4115 R4131 C4100 R4114 10/6.3 R4113 C4034 0.001 C4012 0.001 C4132 100p R4018 C4035 10/6.3 AK_IRST CCC_RST R4103 R4112 DAC_PDN R4132 F-LCH+...
Page 60 LCD & Key control section EN401 QSW1025-001 R442 R443 R444 R445 R446 Q441 2SB709A/QR/-X R454 EN401 IC461 GP1UX511RK D441 EN401 MA152WK-X R449 R450 R451 R452 R453 R455 R463 CN802 R464 Q442 2SB709A/QR/-X IC471 HY57V161610ET-8 X801 TP802 NAX0663-001X R480 K471 R481 R470 1.2k R471...
Page 61 CD servo control section L431 Q430 L432 R435 2SB624/4/-X L430 C603 R415 C417 C419 4.7/6.3 100/6.3 R411 C415 4.7/6.3 R413 8.2k 150p R439 C604 Q601 0.01 2SB1132/QR/-W Q431 UN2211-X C637 0.047 PVREF C636 0.047 R431 CD.L-CH 2.2M R643 3.3k CD.R-CH C420 R412 C416...
Page 62 Printed circuit boards Main board Forward side Reverse side C901 CN901 C901 CN345 D3802 D952 D3801 CN345 L901 CN901 D901 C950 CN341 CN341 C950 C3818 D901 D905 R910 R910 Q954 D916 C3818 Q953 K723 D917 D904 CN351 C1703 CN351 R911 D705 C1725 C1705...
Page 63 CD mechanism control board Forward side Reverse side (Switch board) (Reset SW board) (Reset SW board) (Switch board) R682 R689 IC681 R681 IC655 R570 (CD mechanism control board) (CD mechanism control board) R665 C601 C687 C693 R572 C649 C689 C683 L622 CN601 VREF...
Page 64 Switch board Forward side IC461 S445 TP112 RA809 RA808 S444 RA806 TP93 RA805 RA807 Q880 R880 TP94 TP104 R870 TP117 EN401 TP105 TP115 TP116 R896 D420 R895 C806 R882 C897 R858 R811 R883 R829 R828 R827 TP110 C822 TP109 TP118 TP108 S442 C812...
Page 65 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.MA163SCH)

JVC KD-SHX751 Service Manual

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