Sharp CD-C482 Manual de Serviço

– 1 –CD-PC672No. S4915CDPC672/ CONTENTSPageIMPORTANT SERVICE NOTES (For U.S.A. Only) ...

CD-PC672– 10 –Figure 10-1Figure 10-2Figure 10-3Be careful when installing the CD changer mechanism.Install the CD changer mechanism on the CD player b

– 11 –CD-PC672CP-C6721 Front Speaker 1. Net... (A1) x1 11-12. Front Panel ... (A2) x13. Screw ... (A

CD-PC672– 12 –MECHANISM SECTION• Driving Force CheckTorque MeterSpecified ValuePlay: TW-2412 Tape 1: Over 80 gTape 2: Over 80 g• Torque CheckTorque Me

CD-PC672– 16 –• The indicated voltage in each section is the one measuredby Digital Multimeter between such a section and the chas-sis with no signal

– 17 –CD-PC672 Figure 17 BLOCK DIAGRAM (1/3)27123418671824402045152316 262772252029212235143839284142 37 36PU-IN SWXL1XINLD0FIN2JP–CV+SLCSL1FIN1EFTOFD

CD-PC672– 18 – Figure 18 BLOCK DIAGRAM (2/3)IC9LA4POX501VOLUMEJOBVR7025 6 21162213201621171 3 242315201 22159 10117 113 4 5 6 10GND AM IF FM DET FM

– 19 –CD-PC672 Figure 19 BLOCK DIAGRAM (3/3)Q704IC951LA4551POWER AMP.IC803IC806IC805IC804IC650IC651Q601,Q602Q603, Q604KIA4558POPE AMP.IC601NJM4560DOPE

CD-PC672– 20 –Figure 20 SCHEMATIC DIAGRAM (1/12)ABCDEFGH123456• NOTES ON SCHEMATIC DIAGRAM can be found on page 16.D11SS133C77100/16R36220KC570.001R12

– 21 –CD-PC672Figure 21 SCHEMATIC DIAGRAM (2/12)78 9 10 11 12• The numbers 1 to 12 are waveform numbers shown in page 41.R54330R842.2KIC2LC78622

CD-PC672– 22 –ABCDEFGH123456• NOTES ON SCHEMATIC DIAGRAM can be found on page 16.Figure 22 SCHEMATIC DIAGRAM (3/12)R521 1KR522 1KC563 0.022 C532

CD-PC672– 2 –FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFERTO THE OPERATION MANUAL.IMPORTANT SERVICE NOTES (For U.S.A. Only)BE

– 23 –CD-PC672Figure 23 SCHEMATIC DIAGRAM (4/12)78 9 10 11 12C62722/25 R449470 R450470 R62522R613100KR445330 C4420.001 R614 100KC60747/25 C609100PR6

CD-PC672– 24 –Figure 24 SCHEMATIC DIAGRAM (5/12)ABCDEFGH123456• NOTES ON SCHEMATIC DIAGRAM can be found on page 16.0V0V0V0.7V0V0V0V0.7V0V0V0.7V0V0.7V0

– 25 –CD-PC672Figure 25 SCHEMATIC DIAGRAM (6/12)78 9 10 11 12REC_MUTEA_12VBIASREC_RREC_LD_GNDTAPE_LM_GNDA_GNDTAPE_RT1/T20V0V0V0V0V11.6V 11.6V 11.7V 0V

CD-PC672– 26 –Figure 26 SCHEMATIC DIAGRAM (7/12)ABCDEFGH123456• NOTES ON SCHEMATIC DIAGRAM can be found on page 16.R32447C3160.022C3170.001C3328.2P(UJ

– 27 –CD-PC672Figure 27 SCHEMATIC DIAGRAM (8/12)78 9 10 11 12C3190.0047C3930.027(ML) C3560.022R35210KZD351DZ5.1BSB C35747/255C3541/50R3511.5KR386390CF

CD-PC672– 28 –ABCDEFGH123456• NOTES ON SCHEMATIC DIAGRAM can be found on page 16.Figure 28 SCHEMATIC DIAGRAM (9/12)R700 10K R719 10K R711 1KC

– 29 –CD-PC67278 9 10 11 12Figure 29 SCHEMATIC DIAGRAM (10/12)C710220/10C72210/50 C7230.1/50C7110.01D717DS1SS133L702100µH D715DS1SS133R78010K C7061/50

CD-PC672– 30 –ABCDEFGH123456Figure 30 SCHEMATIC DIAGRAM (11/12)R91122K R91022K R92122KR96139KIC901STK4084B POWER AMP. R8133.3(1/2W)C92547/50C91847/50

– 31 –CD-PC672Figure 31 SCHEMATIC DIAGRAM (12/12)78 9 10 11 1296139KQ906KRC107 MRL902 Q907KRC107 MR9644.7KR9654.7KC9370.047(ML) C9350.047(ML) C9400.

CD-PC672– 32 –Figure 32 WIRING SIDE OF P.W.BOARD (1/8)ABCDEFGH123456R614IC401 C305C320C304R316C314C308C312R301C311C324R322R323C310C306R315C351C352C350

– 3 –CD-PC672 Front speaker sectionType: 2-way 5-1/4" (13 cm) wooferand 2" (5 cm) tweeter typeMaximum input power: 80 WRated input power: 40

– 33 –CD-PC672Figure 33 WIRING SIDE OF P.W.BOARD (2/8)78 9 10 11 12IC501 R515R514R519R142R140R146C140R145R141R423C563R513C546R510R433R429R472R471C440C

CD-PC672– 34 –ABCDEFGH123456Figure 34 WIRING SIDE OF P.W.BOARD (3/8)IC70R782R783RD15RD16RD01R799RD10RD11R723RD06RD05C711RD03RD04R795R797C713C714RS701

– 35 –CD-PC672Figure 35 WIRING SIDE OF P.W.BOARD (4/8)78 9 10 11 12IC701 IC702 IC703 3 R742R743R744R760R759R758R751R763R764R762R765R766R767R768R778R77

CD-PC672– 36 –ABCDEFGH123456Figure 36 WIRING SIDE OF P.W.BOARD (5/8)D803D806D807D804D8057654321D809C813R806C825C803R933C801R932R969IC804D821CNP8067654

– 37 –CD-PC672Figure 37 WIRING SIDE OF P.W.BOARD (6/8)78 9 10 11 12SO901R96312345678910111213141516178R905C935D908R913C912R911C959C910IC803Q802D812D81

CD-PC672– 38 –Figure 38 WIRING SIDE OF P.W.BOARD (7/8)ABCDEFGH123456RCNPM1CNPM21212FWM1FWM2SWM3SWM4F. A. S(260-10)F. P. (260-9)1234567891011123421PHM1

– 39 –CD-PC672Figure 39 WIRING SIDE OF P.W.BOARD (8/8)78 9 10 11 12• The numbers 1 to 12 are waveform numbers shown in page 41.IC99L99C99C98BI99

CD-PC672– 40 –VOLTAGE0V-27.5V0V0V-27.5V-27.5V0V 0V0V-25.8V26.0V-0.15V987654321121110-0.1V-0.15V-24.6V -0.1V-0.1V-0.1V-27.5V0V1716151413201918PINNO.VOL

– 41 –CD-PC672WAVEFORMS OF CD CIRCUIT35ms0.50 VIC1 20 F.E15ms5.0 VIC1 54 DRFSTOP PLAYFOCUS SERCH1354267891011345678967810111296789120.5ms1.00 V

CD-PC672– 42 –TROUBLESHOOTING (CD SECTION)When the CD does not functionWhen the CD section does not operate when the objective lens of the optical pic

CD-PC672– 4 –NAMES OF PARTSCD-PC672 Front panel11. Disc Number Selector Buttons12. Disc Tray13. Multi Indicator 14. Disc Skip Button15. Open/Close Bu

– 43 –CD-PC672• When the turntable fails to stop.Is from 5 V till 2.5V down pulse (approx. 300 ms)Check the SWM3 and the wiring from the IC701 pin

CD-PC672– 44 –• When the CD tray fails to open or close.Is there following voltage input in specific state of IC701 pin 19? Open state: 0V Cl

– 45 –CD-PC672• Playback can only be performed when a disc isloaded.Is HF waveform normal (see the Fig.45-1, 2)?Check the tracking system. Is the Foc

CD-PC672– 46 –• Checking the spin system.YesNoPlay operation is performed without disc.The turntable rotates a little.The turntable fails to rotate o

– 47 –CD-PC672FUNCTION TABLE OF ICIC1 VHiLA9241M/-1: Servo Amp. (LA9241M) (1/2)1 FIN2 Connection pin for photodiode of pickup.RF signal is generated t

CD-PC672– 48 –IC1 VHiLA9241M/-1:Servo Amp.(LA9241M) (2/2)Pin No.Port NameFunction51 CL Micro computer command clock input pin.52 DAT Micro computer co

– 49 –CD-PC6721 DEFI Input Defect detection signal (DFF) input terminal. (When this terminal is not used, connect it to 0V.)2 TAI Input For PLL Input

CD-PC672– 50 –IC2 VHiLC78622N-1: Servo/Signal Control (LC78622NE) (2/2)47* SBSY Output Sub-code clock sync signal output terminal.48* EFLG Output C1,

– 51 –CD-PC6721 IN2- CH2 inverted input.2 IN1A- CH1 inverted input.3 IN1B- CH1 output offset control.4 OUT1- CH1 inverted output.5 OUT1+ CH1 non-inver

CD-PC672– 52 –IC701 RH-iX0301AWZZ:System Control Microcomputer (IX0301AW) (1/2)1 VDD VDD — (+) POWER SUPPLY2 P37 ENA Output DOLBY PROLOGIC ENABLE TER

– 5 –CD-PC672 Rear panel11.CD Digital Output Socket12.AC Power Lead13.FM/AM Loop Aerial Socket14.Video/Auxiliary (Audio Signal) Input Sockets15.Rear

– 53 –CD-PC672IC701 RH-iX0301AWZZ:System Control Microcomputer (IX0301AW) (2/2)56 P116 KEY JOG A Input KEY JOG INPUT A57 P115 KEY JOG B Input KEY JOG

CD-PC672– 54 –FL701 VVKBJ685GNK-1: FL DisplayFigure 54 FL DISPLAYS IC OS5S4S2S3DpS1B1 B2B3 B4 B5B6 B7B1B2B3B4B5B6B79G10G11G1G 2G 3G 4G 5G 6G 7G 8GB21B

– 55 –CD-PC672PARTS GUIDENOTE:Parts marked with “ ” are important for maintaining the safety of the set.Be sure to replace parts with specified ones f

PRICERANKDESCRIPTIONNO.PARTS CODENO. PARTS CODEPRICERANKDESCRIPTIONCD-PC672– 1 –INTEGRATED CIRCUITSIC1 VHILA9241M/-1 J AS Servo Amp.,LA9241MIC2 VHILC7

NO.PRICERANKDESCRIPTIONPARTS CODENO. PARTS CODEPRICERANKDESCRIPTIONCD-PC672C18 VCEAZA1HW474M J AB 0.47 µF,50V,ElectrolyticC19 VCEAZA1HW105M J AB 1 µF,

PRICERANKDESCRIPTIONNO.PARTS CODENO. PARTS CODEPRICERANKDESCRIPTIONCD-PC672C510,511 VCEAEA1HW474M J AB 0.47 µF,50V,ElectrolyticC512,513 VCEAEA1HW475M

NO.PRICERANKDESCRIPTIONPARTS CODENO. PARTS CODEPRICERANKDESCRIPTIONCD-PC672R40 VRS-TV2AB562J J AA 5.6 kohms,1/10WR41,42 VRS-TV2AB473J J AA 47 kohms,1/

PRICERANKDESCRIPTIONNO.PARTS CODENO. PARTS CODEPRICERANKDESCRIPTIONCD-PC672R620 VRD-ST2CD270J J AA 27 ohms,1/6WR621,622 VRD-MN2BD272J J AA 2.7 kohms,1

NO.PRICERANKDESCRIPTIONPARTS CODENO. PARTS CODEPRICERANKDESCRIPTIONCD-PC672CNP10 QCNCM705KAWZZ J AC Plug,10PinCNP11 QCNCM704FAWZZ J AC Plug,6PinCNP12

PRICERANKDESCRIPTIONNO.PARTS CODENO. PARTS CODEPRICERANKDESCRIPTIONCD-PC672209 MLEVP0067AWZZ J AC Lever,Lock210 LCHSZ0011AWZZ J AG Chassis,CD Mechanis

CD-PC672– 6 –CD-PC672 Remote control 11.Remote Control Transmitter LED12.Surround Level Buttons13.Centre Level Buttons14.Dolby Pro Logic Button15.Cen

NO.PRICERANKDESCRIPTIONPARTS CODENO. PARTS CODEPRICERANKDESCRIPTIONCD-PC672906 92L372-0106 J AB Screw,ø4×12mm907 92L372-0108 J AC Screw,ø3×10mm908 92L

CD-PC672– 64 –ABCDEFGH123456Figure 9 CD MECHANISM EXPLODED VIEW– 9 –CD-PC672306-1701304701302301702702303M1703x2703x2305x2SW4M2305PWB-D306-2306-33067

CD-PC672– 65 –Figure 10 CABINET EXPLODED VIEW (1/2)ABCDEFGH123456– 10 –CD-PC672247PWB-C2PWB-A1PWB-A2PWB-A4Silicongrease241-1245236606261x5207241-2202

CD-PC672– 66 –Figure 11 CABINET EXPLODED VIEW (2/2)ABCDEFGH123456– 11 –CD-PC672PWB-DCDMECHANISMPWB-B613229225228209224232604604229613225616x422921421

CD-PC672– 67 –ABCDEFGH123456Figure 12 SPEAKER EXPLODED VIEW (1/3)– 12 –CP-C672(withCapacitor C1,2)C1,2CapacitorTWEETERSP3(L-CH)SP4(R-CH)WOOFERSP1(L-CH

CD-PC672– 68 –– 13 –CP-SW672Figure 13 SPEAKER EXPLODED VIEW (2/3)ABCDEFGH123456RED BLACK901902SP1SP1905x4904906907903

CD-PC672– 69 –ABCDEFGH123456Figure 14 SPEAKER EXPLODED VIEW (3/3)– 14 –GBOXS0023AWM1901SP1,2SP1,2902904x6905903GBOXS0022AWM1904x4902904x4SP1901903905

CD-PC672– 70 –– 14 –PACKING OFF THE SET (For U.S.A. Only)Setting position of switches and knobsTape Mechanism STOP– 15 – Not Replacement ItemUNITSPAKP

– 7 –CD-PC672OPERATION MANUALSETTING THE CLOCK 1Press the POWER button to enter the stand-by mode.2Press the CLOCK button.3Within 5 seconds, press the

CD-PC672– 8 –MINI COMPONENT SYSTEMQuick Guide/Guía rápidaCD-PC672● Remote control x 1●Controlador remoto x 1● 2 “AA” batteries●Dos pilas “AA”Remote Se

– 9 –CD-PC672DISASSEMBLYCaution on DisassemblyFollow the below-mentioned notes when disassemblingthe unit and reassembling it, to keep it safe and ens