Sharp CDC2900 - 3-CD Compact Stereo System Service Manual

– 1 –CD-C622/C2900No. S3908CDC622// CONTENTSPageIMPORTANT SERVICE NOTES (For U.S.A. Only) ...

CD-C622/C2900– 10 –Figure 10-1Figure 10-2Figure 10-3Care when installing the CD changer mechanism.Install the CD changer mechanism on the CD player ba

– 11 –CD-C622/C2900CP-C6221 Front Speaker 1. Front Panel ... (A1) x1 11-12. Tip ... (A2) x23. Screw ...

CD-C622/C2900– 12 –How to remove the pickup (See Fig. 12-2)1. Remove the screws (B1) x 2 pcs., to remove the shaft (B2).2. Remove the stop washer (B3)

– 13 –CD-C622/C2900MECHANISM SECTION• Driving Force CheckTorque MeterSpecified ValuePlay: TW-2412 Tape 1: Over 80 gTape 2: Over 80 g• Torque CheckTorq

CD-C622/C2900– 14 –TEST MODEFigure 14-2Figure 14-3Since this CD system incorporates the following automatic adjustment function, when the pickup is re

– 15 –CD-C622/C2900• The indicated voltage in each section is the one measuredby Digital Multimeter between such a section and the chas-sis with no si

CD-C622/C2900– 16 –WAVEFORMS OF CD CIRCUIT35ms0.50 VIC1 20 F.E15ms5.0 VIC1 54 DRFSTOP PLAYFOCUS SERCH1354267891011345678967810111296789120.5ms1.

– 17 –CD-C622/C2900 Figure 17 BLOCK DIAGRAM (1/3)2712341867182440204515231626277225202921 22351438392841423736PU-IN SWXL1XINLD0FIN2JP–CV+SLCSL1FIN1EFT

CD-C622/C2900– 18 – Figure 18 BLOCK DIAGRAM (2/3)5 6 21162213201621171 3 242315201 22159 10117 113 4 5 6 10GND AM IF FM DET FM DETFM IN IC302LC721

– 19 –CD-C622/C2900 Figure 19 BLOCK DIAGRAM (3/3)Q7043159 1011R351VCO ADJL R Q343+B4AGEATER SWM3PROOFSWM4F.A.S SOLM1ENOID SWM5CAM 1 2 3 4 15 2516262

CD-C622/C2900– 2 –FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFERTO THE OPERATION MANUAL.IMPORTANT SERVICE NOTES (For U.S.A. On

CD-C622/C2900– 20 –Figure 20 SCHEMATIC DIAGRAM (1/10)ABCDEFGH123456• NOTES ON SCHEMATIC DIAGRAM can be found on page 15.D11SS133C77100/16R36220KC57 0.

– 21 –CD-C622/C2900Figure 21 SCHEMATIC DIAGRAM (2/10)78 9 10 11 12• The numbers 1 to 12 are waveform numbers shown in page 16.R54330R842.2K33IC2

CD-C622/C2900– 22 –ABCDEFGH123456• NOTES ON SCHEMATIC DIAGRAM can be found on page 15.Figure 22 SCHEMATIC DIAGRAM (3/10)C335560PC3308.2P(UJ)R32010KR32

– 23 –CD-C622/C2900Figure 23 SCHEMATIC DIAGRAM (4/10)78 9 10 11 12R365680C335560PC3308.2P(UJ)C33422P(UJ)C3310.047T331R321120R35047KC3580.0015R360220KR

CD-C622/C2900– 24 –Figure 24 SCHEMATIC DIAGRAM (5/10)ABCDEFGH123456• NOTES ON SCHEMATIC DIAGRAM can be found on page 15.R602 1.5KC64.7R604 1.5KC

– 25 –CD-C622/C2900Figure 25 SCHEMATIC DIAGRAM (6/10)78 9 10 11 12R640 47K R64247K R602 1.5KC6044.7/50R604 1.5KC6064.7/50R606 1.5KR608 1.

CD-C622/C2900– 26 –Figure 26 SCHEMATIC DIAGRAM (7/10)ABCDEFGH123456• NOTES ON SCHEMATIC DIAGRAM can be found on page 15.D8211SS133D8201SS133C9092200/5

– 27 –CD-C622/C2900Figure 27 SCHEMATIC DIAGRAM (8/10)78 9 10 11 122900ONLYC956100/50C954100/50Q908KRC107 MC9370.1(ML)C9360.1(ML)D8021SS133JK970HEADPH

CD-C622/C2900– 28 –ABCDEFGH123456• NOTES ON SCHEMATIC DIAGRAM can be found on page 15.Figure 28 SCHEMATIC DIAGRAM (9/10)MC72047/50 R7071KR7081KQ7072SC

– 29 –CD-C622/C290078 9 10 11 12Figure 29 SCHEMATIC DIAGRAM (10/10)D7231SS133R7954.7K C7230.1/50C710220/10R7114.7KR7513.3KR75010K R74910K R74810K 10K

– 3 –CD-C622/C2900 Compact disc player sectionType: 3-disc multi-play compact discplayerSignal readout: Non-contact, 3-beam semi-conductor laser pick

CD-C622/C2900– 30 –Figure 30 WIRING SIDE OF P.W.BOARD (1/11)ABCDEFGH123456CD-C6221 2 3 4 5 6 7

– 31 –CD-C622/C2900Figure 31 WIRING SIDE OF P.W.BOARD (2/11)78 9 10 11 12B C E12 13141512345678910111320 19 18 17 161514 121234567891011122423222120

CD-C622/C2900– 32 –Figure 32 WIRING SIDE OF P.W.BOARD (3/11)ABCDEFGH123456CD-C29001 2 3 41 2 3B C E12345678910 11 12 131

– 33 –CD-C622/C2900Figure 33 WIRING SIDE OF P.W.BOARD (4/11)78 9 10 11 12B C E1213141512345678910111320 19 18 17 161514 1212345678910111224232221201

CD-C622/C2900– 34 –Figure 34 WIRING SIDE OF P.W.BOARD (5/11)ABCDEFGH123456CD-C62211581ECBBCEECB321ECBECB12314CNS806CNS121234CNP806P38 1 - DTO POWER P

– 35 –CD-C622/C2900Figure 35 WIRING SIDE OF P.W.BOARD (6/11)78 9 10 11 121818ECB135791113151719212468101214161820B121CNP701P31 8 - ATO MAIN PWB1RDIC7

CD-C622/C2900– 36 –Figure 36 WIRING SIDE OF P.W.BOARD (7/11)ABCDEFGH123456CD-C290011581ECBBCEECB321ECBECB12314CNS806CNS121234CNP806P40 1 - DTO POWER

– 37 –CD-C622/C2900Figure 37 WIRING SIDE OF P.W.BOARD (8/11)78 9 10 11 121818ECB135791113151719212468101214161820B121CNP701P33 8 - ATO MAIN PWB1RDIC7

CD-C622/C2900– 38 –Figure 38 WIRING SIDE OF P.W.BOARD (9/11)ABCDEFGH123456RCNPM1CNPM21212FWM1FWM2SWM3SWM4F. A. SF. P.1234567891011123421PHM1TAPE MECHA

– 39 –CD-C622/C2900Figure 39 WIRING SIDE OF P.W.BOARD (10/11)78 9 10 11 12• The numbers 1 to 12 are waveform numbers shown in page 16.1234658765

CD-C622/C2900– 4 –NAMES OF PARTS Rear Panel1. CD Digital Output Socket2. AC Power Input Socket3. FM/AM Loop Aerial Socket4. Video/Auxiliary (Audio

CD-C622/C2900– 40 –Figure 40 WIRING SIDE OF P.W.BOARD (11/11)ABCDEFGH123456CD-C29001234T802POWER TRANSFORMERRL801 C801SO801 C809D813D812D811D810C810D8

– 41 –CD-C622/C2900VOLTAGE0V0V0V0V4.7V4.7V0V4.7V4.7V2.3V2.3V5.0V0V0V0V0V4.7V4.7V4.7V0V0V0V0V4.7V0V0V0V0V0V0V0V4.9V4.9V4.9V4.7V5.0V0V0V4.9V4.8V98765432

CD-C622/C2900– 42 –TROUBLESHOOTING (CD SECTION)When the CD does not functionWhen the CD section does not operate When the objective lens of the optica

– 43 –CD-C622/C2900• 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

CD-C622/C2900– 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

– 45 –CD-C622/C2900• Playback can only be performed when a disc isloaded.Is HF waveform normal (see the Fig.45-1, 2)?Check the tracking system. Is th

CD-C622/C2900– 46 –• Checking the spin system.YesNoPlay operation is performed without disc.The turntable rotates a little.The turntable fails to rot

– 47 –CD-C622/C2900FUNCTION TABLE OF ICIC1 VHiLA9241M/-1: Servo Amp. (LA9241M) (1/2)1 FIN2 Connection pin for photodiode of pickup.RF signal is genera

CD-C622/C2900– 48 –IC1 VHiLA9241M/-1:Servo Amp.(LA9241M) (2/2)Pin No.Port NameFunction51 CL Micro computer command clock input pin.52 DAT Micro comput

– 49 –CD-C622/C29001 DEFI Input Defect detection signal (DFF) input terminal. (When this terminal is not used, connect it to 0V.)2 TAI Input For PLL I

– 5 –CD-C622/C2900CP-C622 Front Speaker1. Super Tweeter2. Woofer3. Bass Reflex Ducts4. Speaker Wire1. Super Tweeter2. Tweeter 3. Woofer 4. Bass Refl

CD-C622/C2900– 50 –IC2 VHiLC78622N-1: Servo/Signal Control (LC78622NE) (2/2)47* SBSY Output Sub-code clock sync signal output terminal.48* EFLG Outpu

– 51 –CD-C622/C29001 IN2- CH2 inverted input.2 IN1A- CH1 inverted input.3 IN1B- CH1 output offset control.4 OUT1- CH1 inverted output.5 OUT1+ CH1 non-

CD-C622/C2900– 52 –IC701 RH-iX0280AWZZ:System Microcomputer (IX0280AW) (1/2)1 VDD VDD — (+) POWER SUPPLY2* P37 ENA Output DOLBY PROLOGIC ENABLE TERMI

– 53 –CD-C622/C2900IC701 RH-iX0280AWZZ:System Microcomputer (IX0280AW) (2/2)56 P116 KEY JOG A Input KEY JOG INPUT A57 P115 KEY JOG B Input KEY JOG IN

CD-C622/C2900– 54 –FL701 VVKBJ685GNK-1: FL DisplayFigure 54 FL DISPLAYS IC OS5S4S2S3DpS1B1 B2B3 B4 B5B6 B7B1B2B3B4B5B6B79G10G11G1G 2G 3G 4G 5G 6G 7G 8

– 55 –CD-C622/C2900PARTS GUIDENOTE:Parts marked with “ ” are important for maintaining the safety of the set.Be sure to replace parts with specified o

PRICERANKDESCRIPTIONNO.PARTS CODE NO. PARTS CODEPRICERANKDESCRIPTIONCD-C622/C2900– 1 –INTEGRATED CIRCUITSIC1 VHILA9241M/-1 J AS Servo Amp.,LA9241MIC2

NO.PRICERANKDESCRIPTIONPARTS CODENO. PARTS CODEPRICERANKDESCRIPTIONCD-C622/C2900C29 VCEAZA1HW475M J AB 4.7 µF,50V,ElectrolyticC30 VCEAZA1HW104M J AB 0

PRICERANKDESCRIPTIONNO.PARTS CODE NO. PARTS CODEPRICERANKDESCRIPTIONCD-C622/C2900C902 VCCSPA1HL221J J AA 220 pF,50VC903 VCEAZA1HW105M J AB 1 µF,50V,El

NO.PRICERANKDESCRIPTIONPARTS CODENO. PARTS CODEPRICERANKDESCRIPTIONCD-C622/C2900R562 VRD-MN2BD394J J AA 390 kohms,1/8WR564 VRD-MN2BD394J J AA 390 kohm

CD-C622/C2900– 6 –OPERATION MANUALCLOCKPOWERMEMORY/SETTUNING/TIME( )SETTING THE CLOCK 1Press the POWER button to enter the stand-by mode.2Press

PRICERANKDESCRIPTIONNO.PARTS CODE NO. PARTS CODEPRICERANKDESCRIPTIONCD-C622/C2900CNPM1 QCNCM932MAFZZ J AE Plug,12PinCNPM2 QCNCM030BAWZZ J AB Pin Holde

NO.PRICERANKDESCRIPTIONPARTS CODENO. PARTS CODEPRICERANKDESCRIPTIONCD-C622/C2900244- 2 HDECQ0465AWSA J AB Panel,AMP. [2900]244- 3 HDECQ0411AWSA J AE V

PRICERANKDESCRIPTIONNO.PARTS CODE NO. PARTS CODEPRICERANKDESCRIPTIONCD-C622/C2900SPEAKER BOX PARTS901 92L10002290010 J BD Cabinet Ass’y902 92L200L0290

CD-C622/C2900– 63 –ABCDEFGH123456Figure 8 CD MECHANISM EXPLODED VIEW– 8 –CD-C622/C2900306-1701304701302301702702303M1703x2703x2305x2SW4M2305PWB-C306-

CD-C622/C2900– 64 –Figure 9 CABINET EXPLODED VIEW (1/2)ABCDEFGH123456– 9 –CD-C622/C2900257205M901203604x2602x102036222900PWB-A6PWB-A1PWB-A3PWB-A5240x

CD-C622/C2900– 65 –Figure 10 CABINET EXPLODED VIEW (2/2)ABCDEFGH123456– 10 –CD-C622/C2900PWB-DCDMECHANISMPWB-B254611236213223217210238236611213612x42

CD-C622/C2900– 66 –ABCDEFGH123456Figure 11 SPEAKER EXPLODED VIEW (1/3)– 11 –CP-C622903SP3,4SP1,2907x4909904902908908905906901BKBKRDRDPIEZOSP3,4WOOFERS

CD-C622/C2900– 67 –– 12 –CP-C2900Figure 12 SPEAKER EXPLODED VIEW (2/3)ABCDEFGH123456904,905908x2908x2SP3,4909x2907SP1,2911x4910(withCapacitor C1,2)C1,

CD-C622/C2900– 68 –Figure 13 SPEAKER EXPLODED VIEW (3/3)– 13 –GBOXS0021AWM1 (CD-C622 ONLY)ABCDEFGH123456901SP1,2SP1,2902904x6905903

CD-C622/C2900– 69 –– 14 –PACKING OFF THE SET (For U.S.A. Only)Setting position of switches and knobsTape Mechanism STOP– 14 –Not Replacement ItemCP-C6

– 7 –CD-C622/C2900MINI COMPONENT SYSTEMQuick Guide/Guía rápidaCD-C622Remote control x 1Controlador remoto x 12 “AA” batteriesDos pilas “AA”Remote Sens

CD-C622/C2900– 70 –– 15 –Setting position of switches and knobsTape Mechanism STOPCP-C2900Not Replacement ItemUNITSPAKP0013AWZZ1Polyethylene bagSPAKA0

CD-C622/C2900– 71 –– 16 –— M E M O —

CD-C622/C2900– 72 –No part of this publication may be reproduced,stored in a retrieval system, or transmitted inany form or by any means, electronic,

CD-C622/C2900– 8 –MINI COMPONENT SYSTEMQuick Guide/Guía rápidaCD-C2900Remote control x 1Controlador remoto x 12 “AA” batteriesDos pilas “AA”Remote Sen

– 9 –CD-C622/C2900DISASSEMBLYCaution on DisassemblyFollow the below-mentioned notes when disassemblingthe unit and reassembling it, to keep it safe an