Sharp-CDPC672-cs-sm 电路图 维修手册.pdf

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1、 1 CD-PC672 No. S4915CDPC672/ CONTENTS Page IMPORTANT SERVICE NOTES (For U.S.A. Only) . 2 SPECIFICATIONS .3 NAMES OF PARTS . 4 OPERATION MANUAL . 7 QUICK GUIDE . 8 DISASSEMBLY. 9 REMOVING AND REINSTALLING THE MAIN PARTS. 12 ADJUSTMENT . 13 NOTES ON SCHEMATIC DIAGRAM . 16 BLOCK DIAGRAM . 17 SCHEMATIC

2、 DIAGRAM / WIRING SIDE OF P.W.BOARD.20 VOLTAGE . 40 WAVEFORMS OF CD CIRCUIT. 41 TROUBLESHOOTING (CD SECTION) . 42 FUNCTION TABLE OF IC. 47 FL DISPLAY.54 REPLACEMENT PARTS LIST/EXPLODED VIEW PACKING OF THE SET (For U.S.A. Only) CD-PC672 In the interests of user-safety the set should be restored to it

3、s 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-PC672 mini component system consisting of CD-PC672 (main unit), C

4、P-C672 (front speakers), CP-SW672 (sub woofer), GBOXS0022AWM1 (center speaker) and GBOXS0023AWM1 (rear speaker). Manufactured under license from Dolby Laboratories Licens- ing Corporation. DOLBY, the double-D symbol and PRO LOGIC are trademarks of Dolby Laboratories Licensing Corporation. RadioFans.

5、CN 收音机爱 好者资料库 CD-PC672 2 FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER TO THE OPERATION MANUAL. IMPORTANT SERVICE NOTES (For U.S.A. Only) BEFORE RETURNING THE AUDIO PRODUCT (Fire 7-7/8 (200 mm) Height; 11-13/16 (300 mm) Depth; 9-7/16 (240 mm) Weight:6.3 lbs. (2.9 kg)/each Ce

6、nter speaker section Type:4 (10 cm) full-range speaker Maximum input power:40 W Rated input power:20 W Impedance:4 ohms Dimensions:Width; 10-1/4 (260 mm) Height; 5-1/2 (140 mm) Depth; 6-1/8 (155 mm) Weight:2.0 lbs. (0.9 kg)/each Rear speaker section Type:4 (10 cm) full-range speaker Maximum input po

7、wer:20 W Rated input power:10 W Impedance:8 ohms Dimensions:Width; 6-3/4 (170 mm) Height; 3-1/2 (88 mm) Depth; 6-3/4 (170 mm) Weight:1.0 lbs. (0.5 kg)/each Sub woofer section Type:5-1/4 (13 cm) full-range speaker Maximum input power:80 W Rated input power:40 W Impedance:6 ohms Dimensions:Width; 7-7/

8、8 (200 mm) Height; 11-13/16 (300 mm) Depth; 11-5/8 (295 mm) Weight:7.5 lbs. (3.4 kg)/each CP-C672 CP-SW672 GBOXS0022AWM1 General Power source:AC 120 V, 60 Hz Power consumption:Stand-by; 0.3 W Power on; 150 W Dimensions:Width; 10-5/8 (270 mm) Height; 11-13/16 (300 mm) Depth; 14-1/4 (362 mm) Weight:17

9、.7 lbs. (8.1 kg) Amplifier section Output power:Front speakers; 40 W minimum (Except for Canada)RMS into 6 ohms from 60 Hz to 20 kHz with no more than 10 % total harmonic distortion. Output power:Front speakers; (For Canada)RMS; 80 W (40 W + 40 W) (10 % T.H.D.) Center speaker; RMS; 20 W (10 % T.H.D.

10、) Rear speaker; RMS; 20 W (total) (10 % T.H.D.) Sub woofer; RMS; 40 W (80 Hz 10 % T.H.D.) Output terminals:Front speakers; 6 ohms Center speaker; 4 ohms Rear speaker; 8 ohms Sub woofer; 6 ohms Headphones; 16-50 ohms (recommended; 32 ohms) CD digital output (optical) Input terminal:Video/Auxiliary (a

11、udio signal); 2; 500 mV/47 kohms Tuner section Frequency range:FM; 87.5 - 108 MHz AM; 530 - 1,720 kHz Cassette deck section Frequency response:50 - 14,000 Hz (Normal tape) Signal/noise ratio:55 dB (TAPE 1, playback) 50 dB (TAPE 2, recording/ playback) Wow and flutter:0.15 % (WRMS) Compact disc playe

12、r section Type:3-disc multi-play compact disc player Signal readout:Non-contact, 3-beam semi- conductor laser pickup D/A Converter:1-bit D/A converter Frequency response:20 - 20,000 Hz Dynamic range:90 dB (1 kHz) Specifications for this model are subject to change without prior notice. SPECIFICATION

13、S CD-PC672 GBOXS0023AWM1 RadioFans.CN 收音机爱 好者资料库 CD-PC672 4 NAMES OF PARTS CD-PC672 I Front panel 11.Disc Number Selector Buttons 12.Disc Tray 13.Multi Indicator 14.Disc Skip Button 15.Open/Close Button 16.Extra Bass Indicator 17.FM Stereo Mode Indicator 18.FM Stereo Indicator 19.(CD) Repeat Indicat

14、or 10.(CD) Play Indicator 11.(CD) Pause Indicator 12.Spectrum Analyzer/Volume Level Indicator 13.(TAPE 2) Record Indicator 14.(CD) Disc Number Indicators 15.(CD/TUNER) Memory Indicator 16.Timer Play Indicator 17.Timer Record Indicator 18.Sleep Indicator 19.(TAPE 2) Record Pause Button 20.(CD) Track

15、Down/Review Button 3(TUNER) Preset Down Button 3(TAPE 2) Rewind Button 21.(CD) Track Up/Cue Button 3(TUNER) Preset Up Button 3(TAPE 2) Fast Forward Button 22.Bypass Button 23.Normal Button 24.Timer Set Indicator 25.Timer/Sleep Button 26.Clock Button 27.Power Button 28.Headphone Socket 29.Equalizer M

16、ode Selector Button 30.Dimmer Button 31.Phantom Button 32.Extra Bass/Demo Mode Button 33.Volume Control 34.Function Selector Buttons 35.Memory/Set Button 36.(CD/TAPE) Stop Button 37.(TAPE) Play Button 3(CD) Play/Repeat Button 38.Tuning and Time Up/Down Buttons 39.Sub Woofer Volume Control 40.(TAPE 1

17、) Cassette Compartment 41.(TAPE 2) Cassette Compartment 13425 6 7 8 9 10 11 1213 16 17 14 15 18 19 2021 35 22 25 27 29 26 30 37 31 32 33 343638 39 23 24 28 4140 5 CD-PC672 I Rear panel 11.CD Digital Output Socket 12.AC Power Lead 13.FM/AM Loop Aerial Socket 14.Video/Auxiliary (Audio Signal) Input So

18、ckets 15.Rear Speaker Terminals 16.Centre Speaker Terminals 17.Front Speaker Terminals 18.Sub Woofer Terminals I Front speakers 11.Tweeter 12.Woofer 13.Bass Reflex Duct 14.Speaker Wire I Centre speaker 15.Full-Range Speaker 16.Speaker Wire I Rear speaker 17.Full-Range Speaker 18.Speaker Wire I Sub w

19、oofer 19.Woofer 10.Bass Reflex Duct 11.Speaker Wire CP-C672 CP-SW672 GBOXS0022AWM1 3 2 1 4 5 6 7 8 1 2 3 4 9 10 11 5 6 7 8 GBOXS0023AWM1 CD-PC672 6 CD-PC672 I Remote control 11.Remote Control Transmitter LED 12.Surround Level Buttons 13.Centre Level Buttons 14.Dolby Pro Logic Button 15.Centre Mode B

20、utton 16.Test Tone Button 17.Balance Control Buttons G Tuner control section 18.Preset Up/Down Buttons G CD control section 19.Memory Button 10.Pause Button 11.Stop Button 12.Play/Repeat Button 13.Clear Button 14.Track Down/Review Button 15.Random Button 16.Track Up/Cue Button 17.Disc Skip Button G

21、Tape control section 18.(TAPE 1) Play Button 19.(TAPE 1/2) Stop Button 20.(TAPE 2) Record Pause Button 21.(TAPE 2) Rewind Button 22.(TAPE 2) Play Button 23.(TAPE 2) Fast Forward Button 24.Equalizer Mode Button 25.Function Selector Buttons 26.Power Button 27.Extra Bass Button 28.Volume Up/Down Button

22、s 1 7 4 5 109 6 8 1112 13 14 24 19 202221 15 17 2 18 16 23 25 26 27 28 3 7 CD-PC672 OPERATION MANUAL SETTING THE CLOCK 1Press the POWER button to enter the stand-by mode. 2Press the CLOCK button. 3Within 5 seconds, press the MEMORY/SET button. 4Press the TUNING/TIME ( or ) button to select the time

23、display mode. AM 12:00 The 12-hour display will appear. (AM 12:00 - PM 11:59) AM 0:00 The 12-hour display will appear. (AM 0:00 - PM 11:59) 0:00 The 24-hour display will appear. (0:00 - 23:59) G Note that this can only be set when the unit is first installed or it has been reset (see page 18). 5Pres

24、s the MEMORY/SET button. 6Press the TUNING/TIME ( or ) button to adjust the hour. G Press the TUNING/TIME ( or ) button once to advance the time by 1 hour. Hold it down to advance continuously. G When the 12-hour display is selected, AM will change auto- matically to PM. 7Press the MEMORY/SET button

25、. 8Press the TUNING/TIME ( or ) button to adjust the minutes. G Press the TUNING/TIME ( or ) button once to advance the time by 1 minute. Hold it down to change the time in 5 minute intervals. G The hour setting will not advance even if minutes advance from 59 to 00. 9Press the MEMORY/SET button. G

26、The clock starts operating from 0 seconds. (Seconds are not displayed.) Note: G In the event of a power failure or when the AC power cord is disconnected, the clock display will go out. When the AC power supply is restored, the clock display will flash on and off to indicate the time when the power

27、failure occurred or when the AC power cord was disconnected. CLOCK POWER MEMORY/ SET TUNING/ TIME ( ) AM 12:00AM 0:000:00 2 3 4 7 6 5 8 9 If this happens, follow the procedure below to change the clock time. To change the clock time: xPress the CLOCK button. yWithin 5 seconds, press the MEMORY/SET b

28、utton. zPerform steps 6 - 9 above. To see the time display: Press the CLOCK button. G The time display will appear for about 5 seconds. To change the time display mode: xPerform steps 1 - 2 in the section RESETTING THE MICRO- COMPUTER, on page 18. yPerform steps 1 - 9 above. (Main unit operation) In

29、 this example, the clock is set for the 12-hour (AM 12:00) system. RESETTING THE MICROCOMPUTER Reset the microcomputer under the following conditions: G To erase all of the stored memory contents (clock and timer settings, and tuner and CD presets). G If the display is not correct. G If the operatio

30、n is not correct. 1Press the POWER button to enter the stand-by mode. 2While pressing down the button and the button, hold down the POWER button for at least 1 second. Caution: G The operation explained above will erase all data stored in memory including clock and timer settings, and tuner and CD p

31、resets. 2 1,2 CD-PC672 8 MINI COMPONENT SYSTEM Quick Guide/Gua rpidaCD-PC672 G Remote control x 1 GControlador remoto x 1 G 2 “AA” batteries GDos pilas “AA” Remote Sensor Sensor remoto 2Preparation for use / Preparacin para su uso 1Check the supplied accessories / Compruebe los accesorios suministra

32、dos G FM/AM loop antenna x 1 GAntena de cuadro de FM/AM x 1 G Batteries are not included. GLas pilas no estn incluidas. 8” - 20 (0.2m - 6m) 0,2m - 6m I Speaker connection IConexin de los altavoces I Antenna connection IConexin de las antenas Rear speaker (Right) Altavoz trasero (Derecho) Rear speake

33、r (Left) Altavoz trasero (Izquierdo) Front speaker (Right) Altavoz delantero (Derecho) Front speaker (Left) Altavoz delantero (Izquierdo) G AM Loop Antenna GAntena de cuadro de AM G FM Antenna GAntena de FM G AC 120 V, 60 Hz G120 V de CA, 60 Hz White line Lnea blanca Red Rojo Center speaker Altavoz

34、central I Turning the power on and off IConexin y desconexin de la alimentacin I Remote control IControlador remoto POWER POWER 15 15 Black Negro Sub woofer Altavoz de subgraves 3Listening to a CD / Audicin de discos CD 4Listening to a tape / Audicin de una cinta 5Listening to the radio / Audicin de

35、 la radio 6Recording from CDs / Grabaciones de discos CD 7Sound control / Control del sonldo G Label facing up GEtiqueta hacia arriba I To stop the playback IPara detener la reproduccin I To stop the playback IPara detener la reproduccin G Load the disc to be recorded. GIntroduzca el disco que va a

36、grabar. G CD recording starts. GLa grabacin de CD empieza. I Volume IVolumen I Extra bass (X-BASS) IGraves extra (X-BASS) I Pre-programmed equalizer IEcualizador preprogramado VOLUME FLATHEAVY-1HEAVY-2 SOFT-2SOFT-1VOCAL I To stop the playback IPara detener la reproduccin TAPE 1TAPE 2 TAPE 2 I Sub wo

37、ofer volume IVolumen de subgraves 9 CD-PC672 DISASSEMBLY Caution on Disassembly Follow the below-mentioned notes when disassembling the unit and reassembling it, to keep it safe and ensure excellent performance: 1. Take cassette tape and compact disc out of the unit. 2. Be sure to remove the power s

38、upply plug from the wall outlet before starting to disassemble the unit. 3. Take off nylon bands or wire holders where they need to be removed when disassembling the unit. After servicing the unit, be sure to rearrange the leads where they were before disassembling. 4. Take sufficient care on static

39、 electricity of integrated circuits and other circuits when servicing. Figure 9-2 Figure 9-3 CD-PC672 1Top Cabinet1. Screw . (A1) x49-1 2Side Panel1. Screw . (B1) x89-1 (Left/right) 3CD Player Unit/1. Turn on the power supply,9-2 CD Tray Cover open the disc tray, take out the CD cover, and close. (N

40、ote 1) 2. Hook. (C1) x3 3. Hook. (C2) x2 4. Socket . (C3) x3 5. Screw . (C4) x2 4Back Board1. Screw . (D1) x69-2 (with Digital2. Socket . (D2) x1 Output PWB) 5Main PWB1. Socket . (E1) x210-1 2. Flat Cable. (E2) x1 3. Flat Wire. (E3) x1 6Power PWB1. Screw . (F1) x410-1 2. Socket . (F2) x4 3. Holder PWB . (F3) x5 7Front Panel1. Screw . (G1) x210-1 8Display PWB/1. Screw . (H1) x1310-2 Switch PWB2. Support Bracket . (H2) x1 Headphones PWB 9Tape Mechanism1. Open the cassette holder.10-2 2. Screw. (J1) x6 3. Socket . (J2) x1 10Turntable1. Screw . (K1) x110-3 2. Cover . (K2) x