
– 1 –CD-PC1881VNo. S0961CDPC1881CD-PC1881V• In the interests of user-safety the set should be restored to itsoriginal condition and only parts identic
CD-PC1881V– 10 –Figure 10-2CP-C8811 Front Speaker 1. Front Panel ... (A1) x1 10-12. Tip ... (A2) x23. Screw ...
– 11 –CD-PC1881VHow to remove the pickup (See Fig. 11-2)1. Remove the screws (B1) x 2 pcs., to remove the shaft (B2)x1 pc.2. Remove the stop washer (B
CD-PC1881V– 12 –• AM IF/RFSignal generator: 400 Hz, 30%, AM modulated*1. Input: Antenna, Output: TP302*2. Input: Antenna, Output: TP301TUNER SECTIONfL
– 13 –CD-PC1881VTEST MODEFigure 13-2Figure 13-3Since this CD system incorporates the following automatic adjustment function, when the pickup is repla
CD-PC1881V– 14 –SP 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
– 15 –CD-PC1881V Figure 15 BLOCK DIAGRAM (1/3)123418671824402045152316 2627172252029351421223839284142 37 36PU-IN SWX116.93MHzXINLDOFIN2JP–CV+SLCSL1FI
CD-PC1881V– 16 – Figure 16 BLOCK DIAGRAM (2/3)IC951LA4451POWER AMX5018MHzVOLUMEJOGVR702X351456kHzFM DETCF351+B4+B4+B4VOLTAGEREGURATER+5VFM +BVTT306T30
– 17 –CD-PC1881V Figure 17 BLOCK DIAGRAM (3/3)Q704IC951LA4451POWER AMP.IC803IC806IC805IC804IC650IC651Q601,Q602Q603, Q604KIA4558POPE AMP.IC601NJM4560DO
CD-PC1881V– 18 –Figure 18 SCHEMATIC DIAGRAM (1/12)ABCDEFGH123456• NOTES ON SCHEMATIC DIAGRAM can be found on page 38.CNS303R521 1KR522 1KC563 0.02
– 19 –CD-PC1881VFigure 19 SCHEMATIC DIAGRAM (2/12)78 9 10 11 12L601100µH C62722/50 R449330 R450330 R62522R613100KR445330 C4420.001 C60747/25 C4410.001
CD-PC1881V– 2 –SAFETY PRECAUTION FOR SERVICE MANUALPrecaution to be taken when replacing and servicing the Laser Pickup.The AEL (Accessible Emission L
CD-PC1881V– 20 –ABCDEFGH123456• NOTES ON SCHEMATIC DIAGRAM can be found on page 38.Figure 20 SCHEMATIC DIAGRAM (3/12)REC_MUTEA_12VBIASREC_RREC_LD_GNDT
– 21 –CD-PC1881VFigure 21 SCHEMATIC DIAGRAM (4/12)78 9 10 11 12CNS303P18 12 - ATO MAIN PWBC350 0.022 C352 10/16 R3515.6KC351 0.022 FE301FM
CD-PC1881V– 22 –Figure 22 SCHEMATIC DIAGRAM (5/12)ABCDEFGH123456• NOTES ON SCHEMATIC DIAGRAM can be found on page 38.R70010K R71910K R7111KC72147/50 R
– 23 –CD-PC1881VFigure 23 SCHEMATIC DIAGRAM (6/12)78 9 10 11 12RD1812KSW718AUDIOMODERD176.8KRD1922KSW720ON SCREENDISPLAY SW721DIGESTRD2068KSW719PLAYBA
CD-PC1881V– 24 –Figure 24 SCHEMATIC DIAGRAM (7/12)ABCDEFGH123456• NOTES ON SCHEMATIC DIAGRAM can be found on page 38.R9791KR9801KD9021SS133R98147KQ908
– 25 –CD-PC1881VFigure 25 SCHEMATIC DIAGRAM (8/12)78 9 10 11 12SW801VOLTAGE SELECTORQ906KRC107 MRL902 Q907KRC107 MR9644.7K65KC9370.1(ML) C9360.1(ML)
CD-PC1881V– 26 –ABCDEFGH123456• NOTES ON SCHEMATIC DIAGRAM can be found on page 38.Figure 26 SCHEMATIC DIAGRAM (9/12)• The numbers 1 to 12 are w
– 27 –CD-PC1881V78 9 10 11 12Figure 27 SCHEMATIC DIAGRAM (10/12)CV33330/6.3 R5410K C414.7/25Q54KTC3876 YR50680 X116.93MHzC500.022 C750.001C59100/10C51
CD-PC1881V– 28 –ABCDEFGH123456Figure 28 SCHEMATIC DIAGRAM (11/12)• NOTES ON SCHEMATIC DIAGRAM can be found on page 38.CV147/6.3CV30.22QV1UPC29M33 TXV1
– 29 –CD-PC1881VFigure 29 SCHEMATIC DIAGRAM (12/12)78 9 10 11 12DV11SS133DV21SS133RV62150RV63150CV414.7/25RV9633K RV956.8KCV154.7/25CV18100/10RV61100K
– 3 –CD-PC1881VSpecifications for this model are subject to change withoutprior notice.SPECIFICATIONSCD-PC1881VCP-C881FOR A COMPLETE DESCRIPTION OF TH
CD-PC1881V– 30 –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.V
– 31 –CD-PC1881VFigure 31 WIRING SIDE OF P.W.BOARD (1/7)ABCDEFGH123456C338C323C346R369C347C345R345R380R379R381C397R344C341C330C337C332C392C334R323C343
CD-PC1881V– 32 –Figure 32 WIRING SIDE OF P.W.BOARD (2/7)ABCDEFGH123456IC651 C465C471C472R476C475C479C474IC471 C473C480C481C482C476C478C477C611R615C605
– 33 –CD-PC1881VFigure 33 WIRING SIDE OF P.W.BOARD (3/7)78 9 10 11 12CNP701SW715VIDEOLED721LED720SW716 TAPESW717 CDD720D719RD14R784LED718R785C722SW718
CD-PC1881V– 34 –ABCDEFGH123456Figure 34 WIRING SIDE OF P.W.BOARD (4/7)RL902 D803D806D807D804D805C806D808C805C812D809C811C813D802Q801R806C804R812ZD802
– 35 –CD-PC1881VFigure 35 WIRING SIDE OF P.W.BOARD (5/7)78 9 10 11 12RCNPM1CNPM21212FWM1FWM2SWM3FOOL PROFF(260-9)SWM4F. A. S(260-10)123456789101112342
CD-PC1881V– 36 –ABCDEFGH123456Figure 36 WIRING SIDE OF P.W.BOARD (6/7)C77 C59 C52 C51 ICV1IC4 C29 C20 C18 C82 C36 CV39CV40CV41R91 Q51 D93 R81 R80 R83
– 37 –CD-PC1881VFigure 37 WIRING SIDE OF P.W.BOARD (7/7)78 9 10 11 12• The numbers 1 to 12 are waveform numbers shown in page 39.ICV4IC3IC1IC2R7
CD-PC1881V– 38 –SW1 OPEN/CLOSE ON—OFFSW2 MECHA UP ON—OFFSW3 DISC NUMBER ON—OFFSW4 PICKUP IN ON—OFFSW701 ON/STAND-BY ON—OFFSW702 BOOK MARK ON—OFFSW703
– 39 –CD-PC1881VWAVEFORMS OF CD CIRCUIT35ms0.50 VIC1 20 F.E15ms5.0 VIC1 54 DRFSTOP PLAYFOCUS SERCH1354267891011345678967810111296789120.5ms1.00
CD-PC1881V– 4 –NAMES OF PARTSCD-PC1881V Front panel1. Disc Number Selector Buttons2. Disc Tray3. Multi Indicator4. Disc Skip Button5. Open/Close Butt
CD-PC1881V– 40 –• 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 pi
– 41 –CD-PC1881V• When the CD tray fails to open or close.Is there following voltage input in specific state of IC701 pin 19? Open state: 0V
CD-PC1881V– 42 –• Playback can only be performed when a disc isloaded.Is HF waveform normal (see the Fig. 42-2, 3)?Check the tracking system. Is the
– 43 –CD-PC1881V• Checking the spin system.YesNoPlay operation is performed without disc.The turntable rotates a little.The turntable fails to rotate
CD-PC1881V– 44 –FUNCTION TABLE OF ICIC1 VHiLA9241M/-1: Servo Amp. (LA9241M) (1/2)1 FIN2 Connection pin for photodiode of pickup.RF signal is generated
– 45 –CD-PC1881VIC1 VHiLA9241M/-1:Servo Amp.(LA9241M) (2/2)Pin No.Port NameFunction51 CL Micro computer command clock input pin.52 DAT Micro computer
CD-PC1881V– 46 –IC2 VHiLC78631E-1: Servo/Signal Control (LC78631E) (1/2)PinNo.FunctionTerminal Name Input/OutputIn this unit, the terminal with aster
– 47 –CD-PC1881VIC2 VHiLC78631E-1: Servo/Signal Control (LC78631E) (2/2)Figure 47 BLOCK DIAGRAM OF ICPinNo.FunctionTerminal Name Input/Output51 XVSS
CD-PC1881V– 48 –1 IN2- CH2 inverted input.2 IN1A- CH1 inverted input.3 IN1B- CH1 output offset control.4 OUT1- CH1 inverted output.5 OUT1+ CH1 non-inv
– 49 –CD-PC1881VIC701 RH-iX0340AWZZ:System Control Microcomputer (IX0340AW) (1/2)1 VDD VDD — (+) Power supply2 P37 ENA Output Dolby prologic enable t
– 5 –CD-PC1881VCP-C881GBOXS0026AWM1GBOXS0027AWM17891011123456123456789101112CP-SW881 Rear panel1. Video Output Socket2. AC Power Lead3. AM Aerial Ter
CD-PC1881V– 50 –IC701 RH-iX0340AWZZ:System Control Microcomputer (IX0340AW) (2/2)56 P116 KEY JOG A Input Key jog input A57 P115 KEY JOG B Input Key j
– 51 –CD-PC1881VICV1 RH-iX0313AWZZ: MPEG Controller (IX0313AW)1 P50 VOCAL CANCEL Output Vocal cancel2 P51 K_C_DATA Output Key control IC data3 P52 K_C
CD-PC1881V– 52 –1 VDD — Digital supply.2-5 HD7-HD4 Input/Output Host data bus.HD7 = MSB, HDO = LSB.Internally pulled down. Pull down resistance = appr
– 53 –CD-PC1881V52 MWE Output DRAM write enable signal.53 MCAS Output DRAM column address strobe signal.54-56 MD7-MD5 Input/Output DRAM data bus.MD15
CD-PC1881V– 54 –Figure 54 BLOCK DIAGRAM OF ICCBP3-CBP1VOUT3-VOUT1VCLKHSYNCVSYNCCSYNCAUDOAUBCKAULRCKAUEMPHAUCLKMWEMCASMRASMA8-0MD15-0X1,X2RESETINTHSELA
– 55 –CD-PC1881VPin No.Port NameFunction1 VDD Power supply2-10 DQ0-DQ7 Data input/output11*,12* NC Not used13 WE Read/write enable14 RAS Row address s
CD-PC1881V– 56 –FL701 VVKBJ685GNK-1: FL DisplayFigure 56 FL SEGMENTS IC OS5S4S2S3DpS1B1 B2B3 B4 B5B6 B7B1B2B3B4B5B6B79G10G11G1G 2G 3G 4G 5G 6G 7G 8GB2
CD-PC1881VPARTS GUIDENOTE:Parts marked with “ ” are important for maintaining the safety of the set.Be sure to replace parts with specified ones for m
PRICERANKDESCRIPTIONNO.PARTS CODE NO. PARTS CODEPRICERANKDESCRIPTIONCD-PC1881V– 1 –CD-PC1881VINTEGRATED CIRCUITSIC1 VHILA9241M/-1 J AS Servo Amp.,LA92
NO.PRICERANKDESCRIPTIONPARTS CODENO. PARTS CODEPRICERANKDESCRIPTIONCD-PC1881V– 2 –VIBRATORSX1 92LCRSTL1746AT J AH Crystal,16.93 MHzX351 92LCRSTL1425A
CD-PC1881V– 6 – Remote control1. Remote Control Transmitter LED2. On/Stand-by Button3. Surround Level Buttons4. Centre Level Buttons5. Dolby Pro Logi
PRICERANKDESCRIPTIONNO.PARTS CODE NO. PARTS CODEPRICERANKDESCRIPTIONCD-PC1881V– 3 –C460 VCTYMN1EF223Z J AA 0.022 µF,25VC461~464 VCKYMN1HB391K J AA 390
NO.PRICERANKDESCRIPTIONPARTS CODENO. PARTS CODEPRICERANKDESCRIPTIONCD-PC1881V– 4 –CV16 VCKYTV1EB104K J AA 0.1 µF,25VCV17 VCKYTV1HB103K J AA 0.01 µF,50
PRICERANKDESCRIPTIONNO.PARTS CODE NO. PARTS CODEPRICERANKDESCRIPTIONCD-PC1881V– 5 –R425 VRD-MN2BD224J J AA 220 kohms,1/8WR426~428 VRD-ST2CD102J J AA 1
NO.PRICERANKDESCRIPTIONPARTS CODENO. PARTS CODEPRICERANKDESCRIPTIONCD-PC1881V– 6 –R957 VRD-ST2CD102J J AA 1 kohm,1/6WR959 VRD-ST2CD392J J AA 3.9 kohms
PRICERANKDESCRIPTIONNO.PARTS CODE NO. PARTS CODEPRICERANKDESCRIPTIONCD-PC1881V– 7 –SW710 92LSWICH1401AT J AC Switch,Key Type [Rewind]SW711 92LSWICH140
NO.PRICERANKDESCRIPTIONPARTS CODENO. PARTS CODEPRICERANKDESCRIPTIONCD-PC1881V– 8 –250 PRDAR0145AWFW J Heat Sink,Main! 251 92LLUG1746A J AA Lug Termina
PRICERANKDESCRIPTIONNO.PARTS CODE NO. PARTS CODEPRICERANKDESCRIPTIONCD-PC1881V– 9 –CP-C881GBOXS0026AWM1GBOXS0027AWM1CP-SW881SPEAKER BOX PARTS (Front S
CD-PC1881VABCDEFGH123456Figure 10 CD MECHANISM EXPLODED VIEW– 10 –CD-PC1881V306-1701304701302301702303M1703x4305x2SW4M2305PWB-D306-2306-3306704
CD-PC1881VFigure 11 CABINET EXPLODED VIEW (1/2)ABCDEFGH123456– 11 –CD-PC1881VNote: Only the unit and consumale parts are supplied as parts supply for
CD-PC1881VABCDEFGH123456Figure 12 CABINET EXPLODED VIEW (2/2)– 12 –CD-PC1881VPWB-ECDMECHANISMPWB-B613229225228209224232604229613225616x4229214210SOLM
– 7 –CD-PC1881VOPERATION MANUALNotes concerning use:Replace the batteries if the operating distance is reduced orif the operation becomes erratic.Peri
CD-PC1881VABCDEFGH123456CP-C881Figure 13 SPEAKER EXPLODED VIEW (1/2)– 13 –SP3(L-CH)SP4(R-CH)910x2907911x4909C1,2Capacitor(N.P.)912901SUPERTWEETERSP5(L
CD-PC1881VABCDEFGH123456GBOXS0027AWM1GBOXS0026AWM1– 14 –CP-SW881Figure 14 SPEAKER EXPLODED VIEW (2/2)Center Speaker Section904x4902903905906x4901904x4
CD-PC1881VNo part of this publication may be reproduced,stored in a retrieval system, or transmitted inany form or by any means, electronic, mechanica
CD-PC1881V– 8 –DISASSEMBLYCaution on DisassemblyFollow the below-mentioned notes when disassemblingthe unit and reassembling it, to keep it safe and e
– 9 –CD-PC1881VFigure 9-1Figure 9-2Figure 9-3Be careful when installing the CD changer mechanism.Install the CD changer mechanism on the CD player bas
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