Sharp CD-C492 Manuel de service

– 1 –CD-C471HSERVICE MANUALNo. S5830CDC471H/ CONTENTSPageSAFETY PRECAUTION FOR SERVICE MANUAL ...

CD-C471H– 10 –Figure 10-2How to remove the pickup (See Fig. 10-2)1. Remove the screws (B1) x 2 pcs., to remove the shaft (B2)x 1 pcs.2. Remove the sto

– 11 –CD-C471HMECHANISM SECTION• Driving Force CheckTorque Meter Specified ValuePlay: TW-2412 Tape 1: Over 80 gTape 2: Over 80 g• Torque CheckTorque M

CD-C471H– 12 –TEST MODEFigure 12-2Figure 12-3Since this CD system incorporates the following automatic adjustment function, when the pickup is replace

– 13 –CD-C471HSP out L-ch Input signal is output.(SO901) R-ch Input signal is output.(SO901) SP out C-ch SP cut, no output(SO901) SP out S-chAlmost no

CD-C471H– 14 –Note: When the unit is in the EON stand-by mode and a pro-gramme is selected, the unit will display "TI" instead of "TP

– 15 –CD-C471HNoASPM, summary operationHold down the ASPM button for 3 more second.“ASPM” blinks in the display.Preset CH memory full over?No operate.

CD-C471H– 16 –4. No adjust type (None adjusting circuit.)5. Added EON button.6. Need to change RDS logo due to add EON feature.7. Added EON—TI, EON—PT

– 17 –CD-C471HEON summary notice for reference1. EON-TI/PTY EON stand-by can be set, only when EON ind. lights up.While EON ind. goes out (NO EON STAT

CD-C471H– 18 –SW723 REC PAUSE ON—OFFSW724 TUNING UP/TIME ON—OFFSW725 VOLUME UP ON—OFFSW726 X-BASS ON—OFFSW728 STOP ON—OFFSW729 FWD ON—OFFSW730 FF/PRES

– 19 –CD-C471H Figure 19 BLOCK DIAGRAM (1/3)12345986720121324253031322234353610 1127262829PU-IN SWXL1XINLD0FIN2JP–CV+SLCSL1FIN1EFTOFDSPONCSLDSL–SL+DRF

CD-C471H– 2 –SAFETY PRECAUTION FORSERVICE MANUALPrecaution to be taken when replacing and servicing theLaser Pickup.The AEL (Accessible Emission Level

CD-C471H– 20 – Figure 20 BLOCK DIAGRAM (2/3)CNS11123143443227756566141516378654041332048718293052 4037383945414243222233149505167686970727680562524236

– 21 –CD-C471H Figure 21 BLOCK DIAGRAM (3/3)CNS12SO80147186263 616465662328131618171432363837461735344243 479XL7011011123121921 2218161514131415161718

CD-C471H– 22 –• The numbers 1 to 12 are waveform numbers shown in page 43.Figure 22 SCHEMATIC DIAGRAM (1/13)ABCDEFGH123456• NOTES ON SCHEMATIC D

– 23 –CD-C471HFigure 23 SCHEMATIC DIAGRAM (2/13)78 9 10 11 12P12CNP11D11SS133C44100PC45100PC47100PC22220PC230.00273870R531.2KC74220PC73220PR73390R7439

CD-C471H– 24 –ABCDEFGH123456• NOTES ON SCHEMATIC DIAGRAM can be found on page 18.Figure 24 SCHEMATIC DIAGRAM (3/13)R2531KR2541KR27647K C6320.015 (

– 25 –CD-C471HFigure 25 SCHEMATIC DIAGRAM (4/13)78 9 10 11 12FM SIGNALRECORD SIGNALPLAYBACK SIGNALCD SIGNALC4850.0033D5411SS133D5401SS133C6171/50C

CD-C471H– 26 –Figure 26 SCHEMATIC DIAGRAM (5/13)ABCDEFGH123456• NOTES ON SCHEMATIC DIAGRAM can be found on page 18.7654321654321+B321M1312111098765432

– 27 –CD-C471HFigure 27 SCHEMATIC DIAGRAM (6/13)78 9 10 11 12229154528272625171213182111201914241072386+B+B+B+B+B+B+B81716 15 14 1312111098RECORD SIG

CD-C471H– 28 –Figure 28 SCHEMATIC DIAGRAM (7/13)ABCDEFGH123456• NOTES ON SCHEMATIC DIAGRAM can be found on page 18.MAIN_SCKMAIN_STB41 40 37 36 35 34 3

– 29 –CD-C471HFigure 29 SCHEMATIC DIAGRAM (8/13)78 9 10 11 12+B+B+B+B+B+B+B18 17 16 15 14 13 12 11 10987654321+B321+B+B+B+B+B+B+B+B+B45 44 43 41424039

– 3 –CD-C471H Cassette deck sectionType: Compact cassette tapeFrequency response: 50 - 14,000 Hz (Normal tape)Motor: DC motor with electronic gover

CD-C471H– 30 –ABCDEFGH123456• NOTES ON SCHEMATIC DIAGRAM can be found on page 18.Figure 30 SCHEMATIC DIAGRAM (9/13)C9630.022CHASSISGNDC8012200/50C8

– 31 –CD-C471H78 9 10 11 12Figure 31 SCHEMATIC DIAGRAM (10/13)CNS801CNP801C9670.001C9650.022C9660.022R9514.7C9590.1(ML)C9600.1(ML)R9494.7R969

CD-C471H– 32 –ABCDEFGH123456• NOTES ON SCHEMATIC DIAGRAM can be found on page 18.Figure 32 SCHEMATIC DIAGRAM (11/13)(UJ)(UJ)21876543212221201918171615

– 33 –CD-C471H78 9 10 11 12Figure 33 SCHEMATIC DIAGRAM (12/13)12111098765432124232221201918171615141312111097654321812111817161514131211109876+B+B+B+B

CD-C471H– 34 –ABCDEFGH123456Figure 34 SCHEMATIC DIAGRAM (13/13)29.2V14.9V26.2V14.9V0V0V26.2V1.2V0V28.1V0V2.3V9876543211211100V1.2V1413PINNO.VOLTAGEIC

– 35 –CD-C471HFigure 35 WIRING SIDE OF P.W.BOARD (1/8)78 9 10 11 12BRCOLOR TABLERD(R)ORYLGRBLVLGYWH(W)BKPKBROWNREDORANGEYELLOWGREENBLUEVIOLETGRAYWHIT

CD-C471H– 36 –ABCDEFGH123456Figure 36 WIRING SIDE OF P.W.BOARD (2/8)R167R166R115R114R113R106R104R192C106R108C108RM16RM19RM20RM08RM07R147C155C101R107R1

– 37 –CD-C471HFigure 37 WIRING SIDE OF P.W.BOARD (3/8)78 9 10 11 12BRCOLOR TABLERD(R)ORYLGRBLVLGYWH(W)BKPKBROWNREDORANGEYELLOWGREENBLUEVIOLETGRAYWHIT

CD-C471H– 38 –Figure 38 WIRING SIDE OF P.W.BOARD (4/8)ABCDEFGH123456CNPM2SWM5F. A. SSWM4REC RVSSWM3REC FWDVRM1TAPESPEED1FWM243421PHM1SWM6CAMCNS1BCNS1A

– 39 –CD-C471HFigure 39 WIRING SIDE OF P.W.BOARD (5/8)78 9 10 11 12+-+-PICK UP INSLED MOTORDISC MOTORM2CNP3ASW4M1+-123456CNPM2SWM5F. A. STAPESPEEDCNS5

CD-C471H– 4 –NAMES OF PARTS Front Panel1. (CD) Disc Tray2. (CD) Disc Number Selector Buttons3. (CD) Disc Skip Button4. (CD) Open/Close Button: 5. (

CD-C471H– 40 –Figure 40 WIRING SIDE OF P.W.BOARD (6/8)ABCDEFGH123456POWER PWB-BCNS803TOMAIN PWBP37 7-AQ801C811ZD822ZD820D820D823D822C828C804C812C813

– 41 –CD-C471HFigure 41 WIRING SIDE OF P.W.BOARD (7/8)78 9 10 11 12123456789RDCNS801BL21RDBLRDORORBRBRYLYLBRCOLOR TABLERD(R)ORYLGRBLVLGYWH(W)BKPKBROW

CD-C471H– 42 –Figure 42 WIRING SIDE OF P.W.BOARD (8/8)ABCDEFGH123456R362C341R348R347C330C333C321R349C339R346L342C346R369C347R344C3451R345R301C384R324T

– 43 –CD-C471HWAVEFORMS OF CD CIRCUIT35ms0.50 VIC1 20 F.E15ms5.0 VIC1 54 DRFSTOP PLAYFOCUS SERCH1354267891011345678967810111296789120.5ms1.00 V

CD-C471H– 44 –TROUBLESHOOTING (CD SECTION)When the CD does not functionWhen the CD section does not operate When the objective lens of the optical pic

– 45 –CD-C471H• When the CD tray fails to open or close.Is there following voltage input in specific state of IC701 pin 53? Open state: 0V Cl

CD-C471H– 46 –• Playback can only be performed when a disc isloaded.Is HF waveform normal (see the Fig. 46-1, 2)?Check the tracking system. Is the Fo

– 47 –CD-C471H• Checking the spin system.YesNoPlay operation is performed without disc.The turntable rotates a little.The turntable fails to rotate o

CD-C471H– 48 –1 DEFI Input Input terminal of defect detection signal (DEF). (Connected to OV when not used.)2 TAI Input For PLL Input terminal for tes

– 49 –CD-C471HFunctionTerminal NameInput/Output49* PW Output Output terminal of subcodes P, A, R, S, T, U and W.50* SFSY Output Output terminal of syn

– 5 –CD-C471H Rear Panel1. CD Digital Output Socket2. AC Power Input Socket3. MW/LW Loop Aerial Input Socket4. FM 75 ohms Aerial Socket5. Video/Aux

CD-C471H– 50 –IC1 VHiLA9241M/-1:Servo Amp.,(LA9241M) (1/2)1 FIN2 Connection pin for photodiode of pickup.RF signal is generated through addition with

– 51 –CD-C471HIC1 VHiLA9241M/-1:Servo Amp.,(LA9241M) (2/2)Pin No.Port NameFunction51 CL Micro computer command clock input pin.52 DAT Micro computer c

CD-C471H– 52 –IC201 RH-iX0171AWZZ:System Microcomputer (IX0171AW) (1/2)1* ———— Output —————2 REC/PB — Record/Playback selection signal3* ———— Output

– 53 –CD-C471HIC201 RH-iX0171AWZZ:System Microcomputer (IX0171AW) (2/2)52 VDD — Positive power supply53 CD O/C SW Input CD open-close switch input54

CD-C471H– 54 –IC701 RH-iX0170AWZZ:System Microcomputer (IX0170AW) (1/2)1-5 P94/FIP6-P90/FIP2 G06-G02 Output FL display tube grid drive6,7 P81/FIP1,P8

– 55 –CD-C471HIC701 RH-iX0170AWZZ:System Microcomputer (IX0170AW) (2/2)71 VLOAD VLOAD — Negative power supply for FL drive To be connected to -30V72

CD-C471H– 56 –IC601 VHiLC75396N-1:Audio Processor (LC75396N)1-3* RF1C1-RF1C3 Terminal to connect capacitor of filter configuration for equalizer F1 ba

– 57 –CD-C471H1 VREF Output Reference voltage output (Vdda/2)2 MPXIN Input Base band (multiplex) signal input3 Vdda — Analog system power supply (+5V)

CD-C471H– 58 –FL701 : VVKBJ549GK/-1 FL DisplayFigure 58 FL DISPLAY123X-BASSkHzMHzRDSEONTAPTYTP33 250 1k 4k 16kSLEEPST 4-SPSRSMEMORYPRO LOGICRECTIIC

Date :No. :SHARP CORPORATIONAug. 3, 1998EAA -883CD Stereo : CD-451H/C471H/C471W/C492/C492CModelMODEL SERIAL No. (NEW)QUANTITY (OLD)ITEMCD-C451H--

CD-C471H– 6 –OPERATION MANUALON/STAND-BYCLOCKMEMORY/SETTUNING/TIME( / )AM 12:00 AM 0:000:0023476589SETTING THE CLOCK 1Press the ON/STAND-BY b

Date :No. :SHARP CORPORATIONMar. 19, 1999EAA-915CD Stereo : CD-C471H/C471WModelMODEL SERIAL No. (NEW)QUANTITY (OLD)ITEMCD-C471H -----------------

C9590.1(ML)C9600.1(ML)R9494.7MIC951LA4450POWER AMP.C9410.022C93847/35R942270(1/2W)C9441000/25C94347/50C94247/50R941270(1/2W)C9452200/25C9490.1(ML)C950

Date :No. :SHARP CORPORATIONMar. 26, 1999EAA-921CD Stereo :CD-C440/C470/C471 SeriesCD-C451H/C445WModelMODEL SERIAL No. (NEW)QUANTITY (OLD)ITEMCD-

– 7 –CD-C471HDISASSEMBLYCaution on DisassemblyFollow the below-mentioned notes when disassemblingthe unit and reassembling it, to keep it safe and ens

CD-C471H– 8 –( D1 ) x2ø3 x10mm( E1 ) x1ø3 x10mm( D1 ) x1ø3 x10mmMain PWBTuner PWBFront Panel( D1 ) x9ø3 x8mm( D2 ) x1( E2 ) x1Back Board( F2 ) x2( F

– 9 –CD-C471HCP-C471H1 Front Speaker 1. Net....... (A1) x1 9-12. Fromt Panel .... (A2) x13. Screw ...... (A3)