Sharp CD-C471 W Manuel de service

CD-C471WSHARP SERVICE MANUALNo. S6845CDC471 W/ciInli%DIGITAL AUDIOSURROUNDYYIPRO f LOGICManufactured under license from Dolby Laboratories Licens-in

CD-C471 WREMOVING AND REINSTALLING THE MAIN PARTSCD MECHANISM SECTIONPerform steps 1, 2, 3, 14 and 15 of the disassembly methodto remove the CD mechan

CD-C471 WADJUSTMENTMECHANISM SECTIONl Driving Force CheckTorque MeterPlay: TW-2412Specified ValueTape 1: Over 80 gTape 2: Over 80 gl Torque CheckTorqu

CD-C471 WTEST MODEl Setting the test modeAny one of test mode can be set by pressing several keys as follows.<REC. PAUSE> + <CD> + <POW

CD-C471 WEXPLANATION OF DOLBY SURROUND PRO LOGIC AND EVALUATION METHODOutlinel Namely, two speakers are connected in parallel to oneamplifier.l In the

CD-C471 WNOTES ON SCHEMATIC DIAGRAMl Resistor:To differentiate the units of resistors, such symbol as K andM are used: the symbol K means 1000 ohm and

PICKUP UNITryi.‘tFOCUS COIL*--TRACKING COIL-.SKID?&MOTORMOTORtttt.IPICKUP INSW4SLt. SL-. DRFb+BlCNP99DIGITALOUTCNPI 1FM0 SERVO/SIGNALFMINRES. CQC

---I IIllIicr-----------__-__IFigure 16 BLOCK DIAGRAM (2/3)-16-

CD-C471 Ww‘UTERlC56115621563N5M4558LlC562(1/2)Figure 17 BLOCK DIAGRAM (3/3)- 17-

CD-C471 WL-85201----TR-IT&tFOCFc-.iGNDPDVRIPICKUP UNIT---------0”0”0”2”2”25”2%25”4.7”07”------_I1WOTOR PWB3---L-.-.-.--.-...-.-.--.-.-CNKq$&l

CD-C471 WH CD SIGNALCDDIGITALOUT1 JACK PWB-A4.-.-.LH CD SIGNALi_cD SERVO PWB-C.Lj.-.-.-.__.~ ._-,~7a910Figure 19 SCHEMATIC DIAGRAM (Z/l 3)-19-1112I

CD-C471 WSAFETY PRECAUTION FORSERVICE MANUALPrecaution to be taken when replacing and servicing theLaser Pickup.The AEL (Accessible Emission Level) of

CD-C471 Wl NOTES ON SCHEMATIC DIAGRAM can be found on page 14.123456Figure 20 SCHEMATIC DIAGRAM (3/13)-20-

CD-C471 WL-MAIN PWB-A1(1/2).-.-.-.-----w FM SIGNAL_,..- PLAYBACK SIGNAL= RECORD SIGNAL,s~EH CD SIGNALcmc155133R463HEADPHONE AMP.910Figure 21 SCHEMATI

CD-C471 W------_WE MECHANISM PWB-F 7IISWM4 cRECRVS v _A1LLL--J 11L-CHTAPE1PLAYBACK HEADIIIRI36 Ic136/ 1 i.8K )470?‘106II /2SC1845 FQ10.5- 2SC1845F-

CD-C471 W,_-------------r-------------FIN PWB-A1(2/ITE1ii;5-T-,, 18+BKRC104 MSWITCHING158Q124%cFKTA1266 GR$+B SWITCHINGR166 RI67= PLAYBACK SIGNAL= REC

CD-C471 WAIIFL701El‘I1IIIlI III II L-L---I I ///II/ I‘II/I IElI IIIIII.-. -.lXOl70AWSYSTEM MICROCOMPUTER ;CDFI) FM SIGNALIGJK700HEADPHONESHl NOTES ON

CD-C471 W_--------_--------_--------6:FW701LED719.d DlSCl u,‘LED716 51,LED717 :I DISC2 :I LED716 41LED715 3r DISC3 ::I LED714 3121Y11 DISPLAY PW

CD-C471 Wr.-.-.-.P.-.-.-.-.P.-.-.-.-IC901STK40704POWER AMP.A6CDEFG~HI:901R905fI Iw:o1\I II I 1L:OFI--&8:-------c!9(KT*IIDRR GRrREARA_GNDCENTECHASS

CD-C471 Wm-.-.-.-*-.-.-.-.-.-_-.-I) FM SIGNALR969.K68M901FAN MOTOR)901‘EAKERiRMlNAL] L-W ;;;;s1] R-CH MIN.CENTER4 OHMSMIN.J,”i I: h ^0903IC951LA4450

CD-C471 Wpiicm-jVD301-1KV1236Z23FR319ANTENNA IAMGNDFM750hmsVD301-2KVI 236223FC336: X47OPR324SE-CHASSISGNDCHASSISGNDFE301FM FRONTENDIIIIIIIII) FM SIGN

CD-C471 Wp-----P---p-pP---r------TUNER PWB-t-hR354. ..3.9KtI aI 13ov ZD352R387(3~3'4 MTZJ3.9B22KKTAI 266GRCl361 -KRC107 M” MPX PHASED351 nlSS1

CD-C471 WFOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFERTO THE OPERATION MANUAL.SPECIFICATIONS0 GeneralPower source:AC 11 O/l 2

CD-C471 W( ):CD NORMAL RECOTHERCD NORMAL PLAYI2I3I456Figure 30 SCHEMATIC DIAGRAM (13/l 3)-30-

CD-C471 W1’ SWICH PWB-A3 1DISPLAY PWB-A217 89101112IFigure 31 WIRING SIDE OF P.W.BOARD (l/E)-31-

CD-C471 WFLAT CABLE(263124cCNS12FWMI ’1MECHANISMP34 1-ETO HEAD PWBP34 2-FGICNSI 1EFHTO TUNER PWBP38 2-c12/34 56Figure 32 WIRING SIDE OF P.W.BOARD (2/8

CD-C471 WTO POWER PWBP36 2-D/I:i50/9FM/AM(KHz)1100/i 0SW201SPAN SELECTOR.JK451-QSUB WOOFERJK452L-CHVIDEO/AUX 2R-CHL-CHVIDEO/AUX 1R-CH1 WH(W) 1 WHITE

TO MAIN PWBP32 1 -ErciT?bqMM1TAPE MOTORPLAYBACK HEAD(254-9)RECOADiPLAYBACWERACE HEAD(254.8)1 PICKUP UNlT(306) )FLAXIBLE PWBHEAD PWB-G ]NSlBCNSlALC

CD-C471 WCNSIATTT UP/DOWN LOADING/ CD MOTOR PWB-D 1CNSBACNSBBDISC MOTOR . .-.__-.-LCNsrli123HBTO MAIN PWBP32 1 -Gx$Ei27a91011121Figure 35 WIRING SIDE

[POWER PWB-B 1MAII(IUPWBP33 7-A123456Figure 36 WIRING SIDE OF P.W.BOARD (6/8)-36-

CD-C471 WTEOlPOWERTRANSFORMERM901FAN MOTORt ICNS804I7a9101112IFigure 37 WIRING SIDE OF P.W.BOARD (7/8)-37-

CD-C471 W1 TUNER PW,B-H 1TO pM3A:N&WBICNS303j--:.. .‘- . .CHASSIEGNDFM75 OHMSGNDiANTENNA23 45 6Figure 38 WIRING SIDE OF P.W.BOARD (8/8)-38-

WAVEFORMSOF CD CIRCUITSTOP-PLAYFOCUS- SERCH0.5msCUE1 .oo ”HFI/ I/ / ?‘! ! ! ! Iosms5.0 vHFL0.5ms5.0 vTES0.5msREVIEWl.OOVHFOSms5.0 vHFL0.5ms5.0 vTESCUE

CD-C471 WNAMES OF PARTSn Front Panel1. (CD) Disc Tray2. (CD) Disc Number Select Buttons3. (CD) Disc Skip Button4. (CD) Open/Close Button: 45. (CD) Pla

CD-C471 wTROUBLESHOOTING (CD SECTION)When the CD does not functionWhen the CD section does not operate When the objective lens of the optical pickup i

CD-C471 W.-; Wheri the CD tray fails to open .or,close.Is there following voltage input in specific state of IC701 pin 53?Open state: OVClose state: O

CD-C471 W0, Playback can only be performed when,a disc isloaded. ‘..-. .Is the Focus servo active? (Can you hear it working?)Yes1 NoCheck the laser

CD-C471 W* Checking the spin system,Play operation is performed without disc.The turntable rotates a little.The spin driver circuit is normal.The turn

CD-C471 WFUNCTION TABLE OF ICIC2 VHiLC78622K-1 Servo/Signal Control(LC78622K) (l/2)Pin No./ Terminal Name 1 Input/Output 1FunctionI1DEFIInput Input te

IC2 VHiLC78622K-1 :Servo/Signal Cotdrol(LC78622K) (l/2)CD-C471 WNote: The same potential must be supplied to the, power terminals (VDD, VVDD, LVDD, RV

CD-C471 WICl VHiLA9241 M/-l :Servo Amp.,(LA9241 M) (i/2)Pin No.Port NameFunction1FIN2Connection pin for photodiode of pickup.RF signal is generated th

CD-C471 WICl VHiLA9241 M/-l :Servo Amp.,(LA9241 M) (2/2)Pin No.Port NameFunction51CL52DAT53CE54DRF55FSS56vcc257REFI58VR59LF260PHl61BHl62LDD63LDS64VCCl

CD-C471 WIC201RH-IX0171 AWZZ:System Microcomputer (IX01 71 AW) (l/2)Pin No.1*Terminal Name Input/OutputOutRutFunctionII21 REC/PB-1 Record/Plavback sel

CD-C471 WIC201RH-ix0171 AWZZ:System Microcomputer (IX01 71 AW) (2/2)79*TAPE PB EQoutputTape circuit playback Eq selection80TAPE REC MUToutputTape circ

CD-C471 Wn Rear Panel1. CD Digital Output Socket2. AC Voltage Selector3. AC Power Input Socket4. AM Aerial Terminal5. Aerial Earth Terminal6. FM 75 Oh

CD-C471 WICI701 RH-iXO170AWZZ:System Microcomputer (IX0170AW) (l/2)Pin No.Port NameTerminal Name Input/Output Function1-5P94/FIP6-P9OlFIP2 G06-GO2Ou

CD-C471 WIC701 RH-iXO170AWZZ:System Microcomputer (IX01 70AW) (2/2)Pin No.Port NameTerminal NameInput/OutputFunction71IIVLOADVLOAD-Negative power supp

CD-C471 WIC601 VHiLC75396N-1 :Audio Processor (LC75396N)Terminal to connect capacitor of filter configuration for equalizer F5 bandLF2C3-LF2ClTerminal

CD-C471 WIC3 VHiM56748FP-I : Focus/Tracking/Spin/Slide Driver (M56748FP)Vref -in&irI 15KStandbySS.GNDStandbyGain4Gain, fl Gain1TXVM4(-) 3,VM4(-)

CD-C471 WMEMO- 54 -

CD-C471 WSHARP PARTS GUIDEMODELCD-C471 WCD-C471 W mini component system consisting ofCD-C471W mini component system, front (CP-C471), senter(GBOXS0006

CD-C471 wNO. PART CODE* PRICERANKDESCRIPTIONNO.PARTS CODE * TA;;DESCRIPTIONINTEGRATED CIRCUITSD604-611D705-709a D801,802D803-809D820D822,823D824D827D9

CD-C471PART CODE *PRICERANKDESCRIPTIONPRICERANKDESCRIPTIONNO. NO.PARTS CODE *C332VCTYMNI EF2232 Jc334VCCUMNlHJlaOJ Jc335VCCCMNlHHlBOJ JC336VCKYMNl

PRICEPARTS CODE * RANKDESCRIPTIONCD-C471 WPART CODE* PRICERANKJ AEJ ABJ ABJ ACJ ABJ ACJ ABJ ACJ AAJ AAJ AAJ AAJ AAJ AAJ AAJ AAJ AAJ AAJ AAJ AAJ AAJ A

NO.PART CODER32R33R34R35.36R37R3%R39R40R41,42R43R44R45R46R47,48R50R51R52R53R54R55R57R58,59R60-62R63R64R66R71,72R73,74R80R81R82R83R8.5R86R87R88-91R93Rl

In thts example, the clock is set for the24-hour (0:OO) system.TUNING/’ITIMEMEMORY/(,/fi)SET4\\if/I, n 1-t1-I ,-I Cl,i,!\0:OO -AM 12:OO - AM 0:OO+

CD-C471 WPART CODEJr PRICERANKDESCRIPTIONPARTS CODE*PRICERANKDESCRIPTIONNO.R701-710R711R712-722R726-729R731,732R733R734-736R737-741R742-744R746-746I37

CD-C471 WNO.RD03RD04RD06RD07RD08RD09RDIORD15RD16RD17RD18RD19RDZORD21RD22RD23RD24,RD25RD26RD27RD28RD29RD30RD31RD32RD33RD34RD35RD36RM05RM06RM07RM08RM09R

CD-C471 WNO.PART CODE* PRICERANKDESCRIPTIONSWM5QSW-FSOOSAWZZ J AG Switch,Leaf Type [F.A.S]SWM692LM-SW1676BJ AD Switch,Leaf Type [CAM]WTMIQCNCWO12NAWZ.

CD-C471 WNO. PART CODE* PRICERANKDESCRIPTIONSPEAKER BOX PARTS (CP-(2471)90092L10002C47110J BG Wood Box Cabinet Ass’v.* PRICERANKDESCRIPTIONNO.PARTS CO

CD-C471 w-1ABCDEFGH-IIIIIIIIIIIIIIIII\--c-306II306-II303-I “LI301 I12 3456CD MECHANISM EXPLODED VIEW-9-

CD-C471 WABCDEFGH,-__-----_IIIrl 604x37?IlLih^... - .-,244 --/244-2wIY '--244-5ig&,267(254-1,254-2,254-3,254-4,254-5.254-6,240254-7)TAPEMECHA

CD-C471 W620?12614x2hy2 xb16226L235&-- 234609x2611236SOLM2123456CABINET EXPLODED VIEW (2/2)-ll-

CD-C471 WI /WJ.-.901I’\903x2ICi \!III910,I 1,,’IIIJJ/%0________j__,-’,_,’E907x2ADF//-906x4.’4.,?/’\,’.,\‘a-/900GSUPERTWEETERSP5 (L-CH)rnE----l/908H123

CD-C471 WCD-C471 WBWOOFERWOOFERSPISPI112233445566SPEAKER EXPLODED VIEW (2/2)SPEAKER EXPLODED VIEW (2/2)JJ-13--13-

CD-C471 WWOOFERSPI (L-CH)SP2 (R-CH)SPI ,2 \9041I2I3I4I5I6SPEAKER EXPLODED VIEW (2/2)-14-

CD-C471 WDISASSEMBLYCaution on DisassemblyFollow the below-mentioned notes when disassemblingthe unit and reassembling it, to keep it safe and ensure

CD-C471 WMEMO

CD-C471 WSHARI=COPYRIGHT @ 1998 BY SHARP CORPORATIONALL RIGHTS RESERVED.No pat-t of this publication may be reproduced,stored in a retrieval system, o

lT?F-?lFront PanelTunerPWBm* Main PWB03 x8mm03 xl OmmFigure 8-1-w /(%) x203 x’Omm03 x8mmFigure 8-203 xl OmmSwitch PWBlolder(Left/Right)Figure 8-3Power

CD-C471 Wr/RE;pz!Ae; 1PROCEDURE1Net.......(Al) xl2. Fromt Panel....IF](A2) xl3.Screw ...... (A3) x24. Screw .