Sharp Actius PC-RD20 Instrukcja Obsługi

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– 1 –
CD-PC1881V
No. S0961CDPC1881
CD-PC1881V
• In the interests of user-safety the set should be restored to its
original condition and only parts identical to those specified be
used.
SERVICE MANUAL
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
SHARP CORPORATION
CD-PC1881V Video CD Mini System consisting of CD-PC1881V
(main unit), CP-C881 (front speakers), CP-SW881 (sub woofer),
GBOXS0026AWM1 (center speaker) and GBOXS0027AWM1
(surround speakers).
CONTENTS
Page
SAFETY PRECAUTION FOR SERVICE MANUAL ........................................................................................................... 2
VOLTAGE SELECTION..................................................................................................................................................... 2
AC POWER SUPPLY CORD AND AC PLUG ADAPTOR ................................................................................................. 2
SPECIFICATIONS ..............................................................................................................................................................3
NAMES OF PARTS ........................................................................................................................................................... 4
OPERATION MANUAL ...................................................................................................................................................... 7
DISASSEMBLY .................................................................................................................................................................. 8
REMOVING AND REINSTALLING THE MAIN PARTS ................................................................................................... 11
ADJUSTMENT ................................................................................................................................................................. 12
BLOCK DIAGRAM ........................................................................................................................................................... 15
SCHEMATIC DIAGRAM .................................................................................................................................................. 18
VOLTAGE ........................................................................................................................................................................ 30
WIRING SIDE OF P.W.BOARD ....................................................................................................................................... 31
NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 38
TYPES OF TRANSISTOR AND LED............................................................................................................................... 38
WAVEFORMS OF CD CIRCUIT ...................................................................................................................................... 39
TROUBLESHOOTING (CD SECTION) ........................................................................................................................... 40
FUNCTION TABLE OF IC................................................................................................................................................ 44
FL SEGMENT ...................................................................................................................................................................56
PARTS GUIDE/EXPLODED VIEW
NTSC/PAL
Manufactured under license from Dolby Laboratories Licensing
Corporation.
DOLBY, the double-D symbol
and “PRO LOGIC” are
trademarks of Dolb
y
Laboratories Licensin
g
Corporation.
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Podsumowanie treści

Strona 1 - CD-PC1881V

– 1 –CD-PC1881VNo. S0961CDPC1881CD-PC1881V• In the interests of user-safety the set should be restored to itsoriginal condition and only parts identic

Strona 2 - VOLTAGE SELECTION

CD-PC1881V– 10 –Figure 10-2CP-C8811 Front Speaker 1. Front Panel ... (A1) x1 10-12. Tip ... (A2) x23. Screw ...

Strona 3 - SPECIFICATIONS

– 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

Strona 4 - NAMES OF PARTS

CD-PC1881V– 12 –• AM IF/RFSignal generator: 400 Hz, 30%, AM modulated*1. Input: Antenna, Output: TP302*2. Input: Antenna, Output: TP301TUNER SECTIONfL

Strona 5 - ■ Sub woofer

– 13 –CD-PC1881VTEST MODEFigure 13-2Figure 13-3Since this CD system incorporates the following automatic adjustment function, when the pickup is repla

Strona 6 - ■ Remote control

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

Strona 7 - OPERATION MANUAL

– 15 –CD-PC1881V Figure 15 BLOCK DIAGRAM (1/3)123418671824402045152316 2627172252029351421223839284142 37 36PU-IN SWX116.93MHzXINLDOFIN2JP–CV+SLCSL1FI

Strona 8 - DISASSEMBLY

CD-PC1881V– 16 – Figure 16 BLOCK DIAGRAM (2/3)IC951LA4451POWER AMX5018MHzVOLUMEJOGVR702X351456kHzFM DETCF351+B4+B4+B4VOLTAGEREGURATER+5VFM +BVTT306T30

Strona 9

– 17 –CD-PC1881V Figure 17 BLOCK DIAGRAM (3/3)Q704IC951LA4451POWER AMP.IC803IC806IC805IC804IC650IC651Q601,Q602Q603, Q604KIA4558POPE AMP.IC601NJM4560DO

Strona 10

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

Strona 11 - CD MECHANISM SECTION

– 19 –CD-PC1881VFigure 19 SCHEMATIC DIAGRAM (2/12)78 9 10 11 12L601100µH C62722/50 R449330 R450330 R62522R613100KR445330 C4420.001 C60747/25 C4410.001

Strona 12 - ADJUSTMENT

CD-PC1881V– 2 –SAFETY PRECAUTION FOR SERVICE MANUALPrecaution to be taken when replacing and servicing the Laser Pickup.The AEL (Accessible Emission L

Strona 13 - CD SECTION

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

Strona 14

– 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

Strona 15

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

Strona 16

– 23 –CD-PC1881VFigure 23 SCHEMATIC DIAGRAM (6/12)78 9 10 11 12RD1812KSW718AUDIOMODERD176.8KRD1922KSW720ON SCREENDISPLAY SW721DIGESTRD2068KSW719PLAYBA

Strona 17

CD-PC1881V– 24 –Figure 24 SCHEMATIC DIAGRAM (7/12)ABCDEFGH123456• NOTES ON SCHEMATIC DIAGRAM can be found on page 38.R9791KR9801KD9021SS133R98147KQ908

Strona 18

– 25 –CD-PC1881VFigure 25 SCHEMATIC DIAGRAM (8/12)78 9 10 11 12SW801VOLTAGE SELECTORQ906KRC107 MRL902 Q907KRC107 MR9644.7K65KC9370.1(ML) C9360.1(ML)

Strona 19

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

Strona 20

– 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

Strona 21 - 8 9 10 11 12

CD-PC1881V– 28 –ABCDEFGH123456Figure 28 SCHEMATIC DIAGRAM (11/12)• NOTES ON SCHEMATIC DIAGRAM can be found on page 38.CV147/6.3CV30.22QV1UPC29M33 TXV1

Strona 22

– 29 –CD-PC1881VFigure 29 SCHEMATIC DIAGRAM (12/12)78 9 10 11 12DV11SS133DV21SS133RV62150RV63150CV414.7/25RV9633K RV956.8KCV154.7/25CV18100/10RV61100K

Strona 23

– 3 –CD-PC1881VSpecifications for this model are subject to change withoutprior notice.SPECIFICATIONSCD-PC1881VCP-C881FOR A COMPLETE DESCRIPTION OF TH

Strona 24

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

Strona 25

– 31 –CD-PC1881VFigure 31 WIRING SIDE OF P.W.BOARD (1/7)ABCDEFGH123456C338C323C346R369C347C345R345R380R379R381C397R344C341C330C337C332C392C334R323C343

Strona 26

CD-PC1881V– 32 –Figure 32 WIRING SIDE OF P.W.BOARD (2/7)ABCDEFGH123456IC651 C465C471C472R476C475C479C474IC471 C473C480C481C482C476C478C477C611R615C605

Strona 27

– 33 –CD-PC1881VFigure 33 WIRING SIDE OF P.W.BOARD (3/7)78 9 10 11 12CNP701SW715VIDEOLED721LED720SW716 TAPESW717 CDD720D719RD14R784LED718R785C722SW718

Strona 28

CD-PC1881V– 34 –ABCDEFGH123456Figure 34 WIRING SIDE OF P.W.BOARD (4/7)RL902 D803D806D807D804D805C806D808C805C812D809C811C813D802Q801R806C804R812ZD802

Strona 29

– 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

Strona 30

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

Strona 31 - TUNER PWB-G

– 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

Strona 32

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

Strona 33

– 39 –CD-PC1881VWAVEFORMS OF CD CIRCUIT35ms0.50 VIC1 20 F.E15ms5.0 VIC1 54 DRFSTOP PLAYFOCUS SERCH1354267891011345678967810111296789120.5ms1.00

Strona 34

CD-PC1881V– 4 –NAMES OF PARTSCD-PC1881V Front panel1. Disc Number Selector Buttons2. Disc Tray3. Multi Indicator4. Disc Skip Button5. Open/Close Butt

Strona 35

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

Strona 36

– 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

Strona 37

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

Strona 38 - NOTES ON SCHEMATIC DIAGRAM

– 43 –CD-PC1881V• Checking the spin system.YesNoPlay operation is performed without disc.The turntable rotates a little.The turntable fails to rotate

Strona 39 - WAVEFORMS OF CD CIRCUIT

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

Strona 40 - When the CD does not function

– 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

Strona 41

CD-PC1881V– 46 –IC2 VHiLC78631E-1: Servo/Signal Control (LC78631E) (1/2)PinNo.FunctionTerminal Name Input/OutputIn this unit, the terminal with aster

Strona 42

– 47 –CD-PC1881VIC2 VHiLC78631E-1: Servo/Signal Control (LC78631E) (2/2)Figure 47 BLOCK DIAGRAM OF ICPinNo.FunctionTerminal Name Input/Output51 XVSS

Strona 43

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

Strona 44 - FUNCTION TABLE OF IC

– 49 –CD-PC1881VIC701 RH-iX0340AWZZ:System Control Microcomputer (IX0340AW) (1/2)1 VDD VDD — (+) Power supply2 P37 ENA Output Dolby prologic enable t

Strona 45

– 5 –CD-PC1881VCP-C881GBOXS0026AWM1GBOXS0027AWM17891011123456123456789101112CP-SW881 Rear panel1. Video Output Socket2. AC Power Lead3. AM Aerial Ter

Strona 46

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

Strona 47

– 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

Strona 48

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

Strona 49

– 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

Strona 50

CD-PC1881V– 54 –Figure 54 BLOCK DIAGRAM OF ICCBP3-CBP1VOUT3-VOUT1VCLKHSYNCVSYNCCSYNCAUDOAUBCKAULRCKAUEMPHAUCLKMWEMCASMRASMA8-0MD15-0X1,X2RESETINTHSELA

Strona 51

– 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

Strona 52

CD-PC1881V– 56 –FL701 VVKBJ685GNK-1: FL DisplayFigure 56 FL SEGMENTS IC OS5S4S2S3DpS1B1 B2B3 B4 B5B6 B7B1B2B3B4B5B6B79G10G11G1G 2G 3G 4G 5G 6G 7G 8GB2

Strona 53

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

Strona 54

PRICERANKDESCRIPTIONNO.PARTS CODE NO. PARTS CODEPRICERANKDESCRIPTIONCD-PC1881V– 1 –CD-PC1881VINTEGRATED CIRCUITSIC1 VHILA9241M/-1 J AS Servo Amp.,LA92

Strona 55 - Row and column address buffer

NO.PRICERANKDESCRIPTIONPARTS CODENO. PARTS CODEPRICERANKDESCRIPTIONCD-PC1881V– 2 –VIBRATORSX1 92LCRSTL1746AT J AH Crystal,16.93 MHzX351 92LCRSTL1425A

Strona 56 - Figure 56 FL SEGMENT

CD-PC1881V– 6 – Remote control1. Remote Control Transmitter LED2. On/Stand-by Button3. Surround Level Buttons4. Centre Level Buttons5. Dolby Pro Logi

Strona 57

PRICERANKDESCRIPTIONNO.PARTS CODE NO. PARTS CODEPRICERANKDESCRIPTIONCD-PC1881V– 3 –C460 VCTYMN1EF223Z J AA 0.022 µF,25VC461~464 VCKYMN1HB391K J AA 390

Strona 58

NO.PRICERANKDESCRIPTIONPARTS CODENO. PARTS CODEPRICERANKDESCRIPTIONCD-PC1881V– 4 –CV16 VCKYTV1EB104K J AA 0.1 µF,25VCV17 VCKYTV1HB103K J AA 0.01 µF,50

Strona 59

PRICERANKDESCRIPTIONNO.PARTS CODE NO. PARTS CODEPRICERANKDESCRIPTIONCD-PC1881V– 5 –R425 VRD-MN2BD224J J AA 220 kohms,1/8WR426~428 VRD-ST2CD102J J AA 1

Strona 60

NO.PRICERANKDESCRIPTIONPARTS CODENO. PARTS CODEPRICERANKDESCRIPTIONCD-PC1881V– 6 –R957 VRD-ST2CD102J J AA 1 kohm,1/6WR959 VRD-ST2CD392J J AA 3.9 kohms

Strona 61

PRICERANKDESCRIPTIONNO.PARTS CODE NO. PARTS CODEPRICERANKDESCRIPTIONCD-PC1881V– 7 –SW710 92LSWICH1401AT J AC Switch,Key Type [Rewind]SW711 92LSWICH140

Strona 62

NO.PRICERANKDESCRIPTIONPARTS CODENO. PARTS CODEPRICERANKDESCRIPTIONCD-PC1881V– 8 –250 PRDAR0145AWFW J Heat Sink,Main! 251 92LLUG1746A J AA Lug Termina

Strona 63 - OTHER CIRCUITRY PARTS

PRICERANKDESCRIPTIONNO.PARTS CODE NO. PARTS CODEPRICERANKDESCRIPTIONCD-PC1881V– 9 –CP-C881GBOXS0026AWM1GBOXS0027AWM1CP-SW881SPEAKER BOX PARTS (Front S

Strona 64 - CABINET PARTS

CD-PC1881VABCDEFGH123456Figure 10 CD MECHANISM EXPLODED VIEW– 10 –CD-PC1881V306-1701304701302301702303M1703x4305x2SW4M2305PWB-D306-2306-3306704

Strona 65 - ! 277 QLUGP0001AWZZ J AC Lug

CD-PC1881VFigure 11 CABINET EXPLODED VIEW (1/2)ABCDEFGH123456– 11 –CD-PC1881VNote: Only the unit and consumale parts are supplied as parts supply for

Strona 66

CD-PC1881VABCDEFGH123456Figure 12 CABINET EXPLODED VIEW (2/2)– 12 –CD-PC1881VPWB-ECDMECHANISMPWB-B613229225228209224232604229613225616x4229214210SOLM

Strona 67

– 7 –CD-PC1881VOPERATION MANUALNotes concerning use:Replace the batteries if the operating distance is reduced orif the operation becomes erratic.Peri

Strona 68

CD-PC1881VABCDEFGH123456CP-C881Figure 13 SPEAKER EXPLODED VIEW (1/2)– 13 –SP3(L-CH)SP4(R-CH)910x2907911x4909C1,2Capacitor(N.P.)912901SUPERTWEETERSP5(L

Strona 69

CD-PC1881VABCDEFGH123456GBOXS0027AWM1GBOXS0026AWM1– 14 –CP-SW881Figure 14 SPEAKER EXPLODED VIEW (2/2)Center Speaker Section904x4902903905906x4901904x4

Strona 70

CD-PC1881VNo part of this publication may be reproduced,stored in a retrieval system, or transmitted inany form or by any means, electronic, mechanica

Strona 71 - CP-SW881

CD-PC1881V– 8 –DISASSEMBLYCaution on DisassemblyFollow the below-mentioned notes when disassemblingthe unit and reassembling it, to keep it safe and e

Strona 72 - ALL RIGHTS RESERVED

– 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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