Sharp CD-C492C Service Manual

– 1 –CD-C492/492CNo.S5829CDC492// CONTENTSPageIMPORTANT SERVICE NOTES (For U.S.A. Only) ...

CD-C492/492C– 10 –RedRojo123AM Loop AntennaAntena de cuadro de AMFM AntennaAntena de FMSUB WOOFERALTAVOZ DE SUBGRAVESRedRojoBlackNegroRIGHTDERECHOLEFT

– 11 –CD-C492/492C6Listening to a tape / Audición de una cinta7Listening to the radio / Audición de la radioLoad a cassette into the cassette compartm

CD-C492/492C– 12 –1 Top Cabinet 1. Screw ... (A1) x4 12-12 Side Panel 1. Screw ... (B1) x4 12-1(Left/right)3 CD Pl

– 13 –CD-C492/492CFigure 13-1Figure 13-2Figure 13-3Figure 13-4Figure 13-5Figure 13-6(E2) x4ø3 x10mm(D3) x4ø3x10mm(G4) x1ø3 x10mm(D3) x6ø3x10mm(E2)

CD-C492/492C– 14 –CP-C4921 Front Speaker 1. Net... (A1) x1 14-22. Baffle Board ... (A2) x13. Screw ...

– 15 –CD-C492/492CHow to remove the pickup (See Fig. 15-2)1. Remove the screws (B1) x 2 pcs., to remove the shaft (B2).2. Remove the stop washer (B3)

CD-C492/492C– 16 –TUNER PWBIC302AM IFT351TP301T352VR351VCOFM BANDCOVERAGE fLL303T301FM IFT304 T302L302IC301SO301ANTENNATERMINALAMGNDFM 75 ohmsFM RFFMD

– 17 –CD-C492/492CTEST MODE21TOTE200 ms1V/diVIC 1 15200 ms1V/diVIC 1 7TRACKING/ERRORBARANCEADJUSTFigure 17-2Figure 17-32110ms0.50 VIC1 20 FE10

CD-C492/492C– 18 –EXPLANATION OF DOLBY DIGITALDVD 1/VCR 1DVD 2/VCR 2DVD 1/VCR 1DVD 2/VCR 2When you connect this unit to a DVD player which is playinga

– 19 –CD-C492/492CSW1 OPEN/CLOSE ON—OFFSW2 MECHA UP ON—OFFSW3 DISC NUMBER ON—OFFSW4 PICKUP IN ON—OFFSWD1 VOLUME ON—OFFSWD2 JOG ON—OFFSWD3 X-BASS ON—OF

CD-C492/492C– 2 –FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFERTO THE OPERATION MANUAL.IMPORTANT SERVICE NOTES (For U.S.A.Only

CD-C492/492C– 20 –WAVEFORMS OF CD CIRCUIT35ms0.50 VIC1 20 F.E15ms5.0 VIC1 54 DRFSTOP PLAYFOCUS SERCH1354267891011345678967810111296789120.5ms1.0

– 21 –CD-C492/492C Figure 21 BLOCK DIAGRAM (1/5)82712345986720121324253031322234353610 1127262829PU-IN SWXL1XINLD0FIN2JP–CV+SLCSL1FIN1EFTOFDSPONCSLDSL

CD-C492/492C– 22 – Figure 22 BLOCK DIAGRAM (2/5)138 101 4 6 7 14TOS ICA14GP1F38RDVD2DIGITALINICA15TC74HCU04INVERTERININDVD2DIGITALINFROM CD

– 23 –CD-C492/492C Figure 23 BLOCK DIAGRAM (3/5)7 9 12135 DEM0DEM1XT1 BICKLRCK6 PD1620222 1415248 1817+B91 3 101121A-GND D3-GNDCENTERSUB WOOFERCENTER

CD-C492/492C– 24 – Figure 24 BLOCK DIAGRAM (4/5)ANTENNA TERMINALSO301 FMAMLR7SPE INH/NT1/T2ERASEHEADR-CHL-CHPB HEADL-CHR-CHREC/PBHEADP.BAC BIASP.BR

– 25 –CD-C492/492C Figure 25 BLOCK DIAGRAM (5/5)RLINOUTLR84 SYSTEM MICROCOMPUTERICF011735SPE1~5IX0233AW~~~VSS ~ ~FL DRIVER u CONTROLLERFL DIPLAY R

CD-C492/492C– 26 –Figure 26 SCHEMATIC DIAGRAM (1/20)ABCDEFGH123456• NOTES ON SCHEMATIC DIAGRAM can be found on page 19.R46560FSSLDODEFCLKCLDATCEDRFVCC

– 27 –CD-C492/492CFigure 27 SCHEMATIC DIAGRAM (2/20)78 9 10 11 12• The numbers 1 to 12 are waveform numbers shown in page 20.11C560.022 Q52KTC32

CD-C492/492C– 28 –ABCDEFGH123456• NOTES ON SCHEMATIC DIAGRAM can be found on page 19.Figure 28 SCHEMATIC DIAGRAM (3/20)RP12100RP11100 QP11KTC3199

– 29 –CD-C492/492CFigure 29 SCHEMATIC DIAGRAM (4/20)78 9 10 11 12CP5722/25RP7322KQP11KTC3199 GRRP295.6KCP250.001CP260.001RP305.6KQP12KTC3199

– 3 –CD-C492/492CSPECIFICATIONSGeneralPower source: AC 120 V, 60 HzPower consumption: 200 WDimensions: Width; 10-5/8" (270 mm)Height; 12-1/2"

CD-C492/492C– 30 –Figure 30 SCHEMATIC DIAGRAM (5/20)ABCDEFGH123456• NOTES ON SCHEMATIC DIAGRAM can be found on page 19.RF66 1KRF78 1KRF77 22K RF76 1KR

– 31 –CD-C492/492CFigure 31 SCHEMATIC DIAGRAM (6/20)78 9 10 11 12RF37 1KRF38 1KRF39 1KRF40 1KRF41 1KRF42 1KRF43 1KRF44 1KRF46 1KRF49 1KRF50 1KRF36 1KR

CD-C492/492C– 32 –Figure 32 SCHEMATIC DIAGRAM (7/20)ABCDEFGH123456• NOTES ON SCHEMATIC DIAGRAM can be found on page 19.QK09KTA1266 GRRK1310KCK090.022

– 33 –CD-C492/492CFigure 33 SCHEMATIC DIAGRAM (8/20)78 9 10 11 12RK574.7KQK19KRC104 MCK4147/25CK46220/10CK4522/25RK5010KRK58470ICK01 AN7345K QK15KRC1

CD-C492/492C– 34 –ABCDEFGH123456• NOTES ON SCHEMATIC DIAGRAM can be found on page 19.Figure 34 SCHEMATIC DIAGRAM (9/20)12 14151115247 81610963131 1 8

– 35 –CD-C492/492C78 9 10 11 12Figure 35 SCHEMATIC DIAGRAM (10/20)CZ611/50CZ601/50CZ591/50CZ571/50CZ581/50CZ561/50DZ011SS133DZ021SS133ICZ10M62446FP ZD

CD-C492/492C– 36 –ABCDEFGH123456Figure 36 SCHEMATIC DIAGRAM (11/20)• NOTES ON SCHEMATIC DIAGRAM can be found on page 19.ICQ01QS7777PFQ-SOUND DECORDER

– 37 –CD-C492/492C78 9 10 11 12Figure 37 SCHEMATIC DIAGRAM (12/20)1415C3573.3/501C3600.022C3590.02224C36122/165367820R3473.9K1918C3530.0181716C3563.3/

CD-C492/492C– 38 –ABCDEFGH123456Figure 38 SCHEMATIC DIAGRAM (13/20)• NOTES ON SCHEMATIC DIAGRAM can be found on page 19.CD050.001CD30 1/50CD29 1/50CD2

– 39 –CD-C492/492C78 9 10 11 12Figure 39 SCHEMATIC DIAGRAM (14/20)XD010031LD012.2µHCD060.001CD050.001CD070.001CD080.001SWD02JOG CD02100/10CD010.022RD3

CD-C492/492C– 4 –Front panel1. Disc Tray2. Disc Number Selector Buttons3. Disc Skip Button4. Open/Close Button: 5. LFE Indicator6. Left Surround Speak

CD-C492/492C– 40 –Figure 40 SCHEMATIC DIAGRAM (15/20)• NOTES ON SCHEMATIC DIAGRAM can be found on page 19.ABCDEFGH123456IZRDOLBY MPEGDECCA460.1CA390

– 41 –CD-C492/492C78 9 10 11 12Figure 41 SCHEMATIC DIAGRAM (16/20)ICA19AK432120 BIT 2 CHD/A CONVERTERCA590.01CA60 0.1CA61 0.1CA62 100/16CA6410/16

CD-C492/492C– 42 –ABCDEFGH123456Figure 42 SCHEMATIC DIAGRAM (17/20)• NOTES ON SCHEMATIC DIAGRAM can be found on page 19.RV2156KRV19270CV19100/50RV1356

– 43 –CD-C492/492C78 9 10 11 12Figure 43 SCHEMATIC DIAGRAM (18/20)RV4156KCV330.047(ML)RV444.7(1/2W) CV340.047(ML) RV4256KRV51330(1/2W)RV52330(1/2W)RLY

CD-C492/492C– 44 –ABCDEFGH123456Figure 44 SCHEMATIC DIAGRAM (19/20)• NOTES ON SCHEMATIC DIAGRAM can be found on page 19.D991KBU1003Q908KTC3199 GRQ9

– 45 –CD-C492/492C78 9 10 11 12Figure 45 SCHEMATIC DIAGRAM (20/20)03Q910KTC3199 GRQ9112SD2012C914100/25R913560ZD905MTZJ6.8CD9061SS133C9540.22(

CD-C492/492C– 46 –Figure 44 WIRING SIDE OF P.W.BOARD (1/9)ABCDEFGH123456BRCOLOR TABLERD(R)ORYLGRBLVLGYWH(W)BKPKBROWNREDORANGEYELLOWGREENBLUEVIOLETGRA

– 47 –CD-C492/492CFigure 45 WIRING SIDE OF P.W.BOARD (2/9)78 9 10 11 121231234567QK16QK19QK22RK67CK52LK04RK10RK09QK08QK07CK16RK11QK06CK06RK06QK04RK04Q

CD-C492/492C– 48 –Figure 48 WIRING SIDE OF P.W.BOARD (3/9)ABCDEFGH123456ICA21ICA22ICB01ICA20ICA19ICA17ICA16ICA15ICA13ICA12ICA11ICH51CA86RA76CA85CA82RA

– 49 –CD-C492/492CFigure 49 WIRING SIDE OF P.W.BOARD (4/9)78 9 10 11 12• The numbers 1 to 12 are waveform numbers shown in page 20.BRCOLOR TABL

– 5 –CD-C492/492C39. Clock Button40. Sleep Button41. Reverse Mode Button: ( )42. CD Pause Button: 43. Jog Dial44. (CD/TAPE) Stop Button: 45. Record Pa

CD-C492/492C– 50 –Figure 50 WIRING SIDE OF P.W.BOARD (5/9)ABCDEFGH123456QD01QD02QD03QD04QD06QD05LEDD28LEDD10LEDD05LEDD12LEDD13LEDD11LEDD06LEDD07LEDDLE

– 51 –CD-C492/492CFigure 51 WIRING SIDE OF P.W.BOARD (6/9)78 9 10 11 12QD12QD10QD11QD07QD08LEDD28LEDD10D13LEDD11LEDD18LEDD17LEDD19LEDD14LEDD16LEDD15LE

CD-C492/492C– 52 –Figure 52 WIRING SIDE OF P.W.BOARD (7/9)ABCDEFGH123456Q910C903Q901C958Q914C914C91514C966123456789101111C908C920Q905C904C907C902C901C

– 53 –CD-C492/492CFigure 53 WIRING SIDE OF P.W.BOARD (8/9)78 9 10 11 12R373R371R372R374C384C381C328R324R319C336C332R312R311C316C338R356C307C308C311C31

CD-C492/492C– 54 –Figure 54 WIRING SIDE OF P.W.BOARD (9/9)ABCDEFGH1234561FFFFSSSSSSSSSSCNPX12CX30DX15RX41CX34RX44CX33QX15QX16CX29CX28CY59RX42RLYX11DX1

– 55 –CD-C492/492CTROUBLESHOOTINGWhen the CD does not functionWhen the CD section does not operate When the objective lens of the optical pickup is di

CD-C492/492C– 56 –• When the CD tray fails to open or close.Is there following voltage input in specific state of ICF01 pin 86? Open state: 0V

– 57 –CD-C492/492C• Playback can only be performed when a disc isloaded.Is HF waveform normal (see the Fig.57-1, 2)?Check the tracking system. Is the

CD-C492/492C– 58 –• Checking the spin system.YesNoPlay operation is performed without disc.The turntable rotates a little.The turntable fails to rota

– 59 –CD-C492/492C1 DEFI Input Input terminal of defect detection signal (DEF). (Connected to OV when not used.)2 TAI Input For PLL Input terminal for

CD-C492/492C– 6 –RATED SPEAKER IMPEDANCE : 8 OHMS MIN.IMPEDANCE NOMINALE DU HAUT-PARLEUR :RATED SPEAKER IMPEDANCE : 8 OHMS MIN.IMPEDANCE NOMINALE DUHA

CD-C492/492C– 60 –IC2 VHiLC78623D-1: Servo/Signal Control (LC78623D) (2/2)FunctionTerminal NameInput/Output49* PW Output Output terminal of subcodes

– 61 –CD-C492/492CIC1 VHiLA9241M/-1: Servo Amp. (LA9241M) (1/2)1 FIN2 Connection pin for photodiode of pickup.RF signal is generated through addition

CD-C492/492C– 62 –IC1 VHiLA9241M/-1: Servo Amp. (LA9241M) (2/2)Pin No.Port NameFunction51 CL Micro computer command clock input pin.52 DAT Micro compu

– 63 –CD-C492/492C1 VREFOUT Output Buffered reference voltage output (VANA/2)2 VREFIN Input Reference voltage input (Biased to VANA/2 internally)3 MS

CD-C492/492C– 64 –ICF1 RH-iX0233AWZZ:System Microcomputer (IX0233AW)1-2 P00-P01 Input/Output 8-Bit input/output port. Input/output can be specified i

– 65 –CD-C492/492CICD1 RH-iX0234AWZZ:System Microcomputer (IX0234AW) (1/2)1-2 P16-P17 Input/Output 8-Bit input/output port. Input/output can be speci

CD-C492/492C– 66 –ICD1 RH-iX0234AWZZ:System Microcomputer (IX0234AW) (2/2)In this unit, the terminal with asterisk mark (*) is (open) terminal which

– 67 –CD-C492/492C1* A0 Output Address bus. The address bus is always active.2 GND — Ground pin3 SS_ Input Serial host interfase: Slave select input (

CD-C492/492C– 68 –54 SDD Output Data output for serial ports B, C and D55 VCC — Used to connect a power supply of +3.3V ±5%56* GPIO2 Input/Output Gene

– 69 –CD-C492/492CICA18 VHiZR38600/-1: DOLBY AC-3/5.1CH MPEG2 AUDIO DECORDER (ZR38600 )Serial In123S/PDIFInputControlDataBus1620AddressBusSeiralAudio

– 7 –CD-C492/492C123Centre speaker1. Tweeter2. Woofer3. Speaker Terminals213456789101112131415 161718 192021222324252627GBOXS0010AWM1Remote control1.

CD-C492/492C– 70 –FLD1 : VVKBJ613GK/-1 FL DisplayFigure 70 FL DISPLAYPIN No.CONNECTIONPIN No.CONNECTION1234567891011121314151G 2G 3G 4G 5G 6G 7G 8G

– 71 –CD-C492/492CPARTS GUIDENOTE:Parts marked with “ ” are important for maintaining the safety of the set.Be sure to replace parts with specified on

PRICERANKDESCRIPTIONNO.PART CODE NO. PARTS CODEPRICERANKDESCRIPTIONCD-C492/492C– 1 –INTEGRATED CIRCUITSIC1 VHILA9241M/-1 J AS Servo Amp.,LA9241MIC2 VH

NO.PRICERANKDESCRIPTIONPARTS CODENO. PART CODEPRICERANKDESCRIPTIONCD-C492/492CLEDD13 VHPSLR325VR-1 J AE LED,Red,SLR325VRLEDD14,15 VHPSLR325MG-1 J AE L

PRICERANKDESCRIPTIONNO.PART CODE NO. PARTS CODEPRICERANKDESCRIPTIONCD-C492/492CC382 VCCCMN1HH150J J AA 15 pF (CH),50VC383 VCTYMN1EF223Z J AA 0.022 µF,

NO.PRICERANKDESCRIPTIONPARTS CODENO. PART CODEPRICERANKDESCRIPTIONCD-C492/492CCK62 VCQYKA1HM473K J AB 0.047 µF,50V,MylarCL12 VCEAZA1CW476M J AB 47 µF,

PRICERANKDESCRIPTIONNO.PART CODE NO. PARTS CODEPRICERANKDESCRIPTIONCD-C492/492CR30 VRD-MN2BD682J J AA 6.8 kohms,1/8WR31 VRD-MN2BD122J J AA 1.2 kohms,1

NO.PRICERANKDESCRIPTIONPARTS CODENO. PART CODEPRICERANKDESCRIPTIONCD-C492/492CRD55 VRD-ST2CD821J J AA 820 ohms,1/6WRD57 VRD-ST2EE390J J AA 39 ohms,1/4

PRICERANKDESCRIPTIONNO.PART CODE NO. PARTS CODEPRICERANKDESCRIPTIONCD-C492/492CRK41,42 VRD-MN2BD820J J AA 82 ohms,1/8WRK43 VRD-MN2BD103J J AA 10 kohm,

NO.PRICERANKDESCRIPTIONPARTS CODENO. PART CODEPRICERANKDESCRIPTIONCD-C492/492CRZ47 VRD-MN2BD102J J AA 1 kohm,1/8WRZ48,49 VRD-ST2CD102J J AA 1 kohm,1/6

CD-C492/492C– 8 –OPERATION MANUALSETTING THE CLOCK1Press the POWER button to enter the stand-by mode.2Press the CLOCK button.3Within 5 seconds, press

PRICERANKDESCRIPTIONNO.PART CODE NO. PARTS CODEPRICERANKDESCRIPTIONCD-C492/492C302 NGERH0012AWZZ J AC Gear,Drive303 MLEVP0010AWZZ J AC Rail,Guide304 N

NO.PRICERANKDESCRIPTIONPARTS CODENO. PART CODEPRICERANKDESCRIPTIONCD-C492/492CSPAKC0662AWZZ J BA Packing CaseSPAKP0032AWZZ J AF Polyethylene BagTLABRF

CD-C492/492C– 80 –– 11 –ABCDEFGH123456Figure 11 CD MECHANISM EXPLODED VIEWCD-C492/492C306-1701304701302301702702303M1703305x2SW4M2305PWB-K306-2306-33

CD-C492/492C– 81 –Figure 12 CABINET EXPLODED VIEW (1/2)ABCDEFGH123456CD-C492/492CNote: Only the unit and consumale parts are supplied as aprts supply

CD-C492/492C– 82 –ABCDEFGH123456Figure 13 CABINET EXPLODED VIEW (2/2)CD-C492/492CPWB-KCDMECHANISMPWB-B604281262272267258283281604262620x4281271259SOL

CD-C492/492C– 83 –ABCDEFGH123456Figure 14 SPEAKER EXPLODED VIEW (1/3)CP-C492– 14 –903905x2905x2SP3,4909x2911SP1,2908x4910CapacitorCapacitor912909x2906

CD-C492/492C– 84 –ABCDEFGH123456CP-SW492Figure 15 SPEAKER EXPLODED VIEW (2/3)– 15 –RED BLACK901900SP1SP1905x4902906907903

CD-C492/492C– 85 –Figure 16 SPEAKER EXPLODED VIEW (3/3)ABCDEFGH123456GBOXS0011AWM1GBOXS0010AWM1Center SpeakerRear Speaker– 16 –C12.7µF, 100V FilmCapac

CD-C492/492C– 86 –BOTTOMTOPFRONTTOPBOTTOMFRONTFRONTFRONTFRONTFRONTFRONTPolyethylene BagSPAKP0032AWZZSPAKA0191AWZZPolyethylene Bag92L3191PC4921092L7102

– 9 –CD-C492/492CMINI COMPONENT SYSTEMQuick Guide/Guía rápidaCD-C492Remote control x 1Controlador remoto x 12 “AA” batteriesDos pilas “AA”Remote senso