Sharp-CDBA150-cs-sm 维修电路原理图.pdf

SHARP CORPORATIONNo. S1003CDBA150/ CONTENTSPageIMPORTANT SERVICE NOTES (FOR U.S.A. ONLY). 2SPECIFICATIONS . 2NAMES OF PARTS . 3OPERATION MANUAL . 5QUICK GUIDE . 6DISASSEMBLY. 7REMOVING AND REINSTALLING THE MAIN PARTS. 10ADJUSTMENT . 11NOTES ON SCHEMATIC DIAGRAM . 13WAVEFORMS OF CD CIRCUIT. 14BLOCK DIAGRAM . 15SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD.18VOLTAGE . 34TROUBLESHOOTING (CD SECTION) . 35FUNCTION TABLE OF IC. 39FL DISPLAY.45REPLACEMENT PARTS LIST/EXPLODED VIEWPACKING OF THE SET (FOR U.S.A. ONLY)CD-BA150 In the interests of user-safety the set should be restored to itsoriginal condition and only parts identical to those specified beused.SERVICE MANUALThis document has been published to be usedfor after sales service only.The contents are subject to change without notice.CD-BA150 Mini Component System consisting of CD-BA150(mini unit) and CP-BA150 (speaker system).CD-BA150RadioFans.CN 收音机爱 好者资料库CD-BA150 2 FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFERTO THE OPERATION MANUAL.IMPORTANT SERVICE NOTES (FOR U.S.A. ONLY)BEFORE RETURNING THE AUDIO PRODUCT(Fire & Shock Hazard)Before returning the audio product to the user, perform thefollowing safety checks.1. Inspect all lead dress to make certain that leads are notpinched or that hardware is not lodged between the chassisand other metal parts in the audio product.2. Inspect all protective devices such as insulating materials,cabinet, terminal board, adjustment and compartment coversor shields, mechanical insulators etc.3. To be sure that no shock hazard exists, check for leakagecurrent in the following manner.* Plug the AC line cord directly into a 120 volt AC outlet.* Using two clip leads, connect a 1.5k ohm, 10 watt resistorparalleled by a 0.15F capacitor in series with all exposedmetal cabinet parts and a known earth ground, such asconduit or electrical ground connected to earth ground.* Use a VTVM or VOM with 1000 ohm per volt, or higher,sensitivity to measure the AC voltage drop across theresistor (See diagram).* Connect the resistor connection to all exposed metal partshaving a return path to the chassis (antenna, metal cabinet,screw heads, knobs and control shafts, escutcheon, etc.)and measure the AC voltage drop across the resistor.All check must be repeated with the AC line cord plug connectionreversed.Any reading of 0.3 volt RMS (this corresponds to 0.2 milliamp.AC.) or more is excessive and indicates a potential shockhazard which must be corrected before returning the audioproduct to the owner.Specifications for this model are subject to change withoutprior notice.SPECIFICATIONSCD-BA150CP-BA150G GeneralPower source:AC 120 V, 60 HzPower consumption:105 WDimensions:Width; 10-5/8 (270 mm)Height; 13 (330 mm)Depth; 14-6/8 (375 mm)Weight:13.6 lbs. (6.2 kg)G Amplifier sectionOutput power:(Except for Canada)50 watts minimum RMS perchannel into 6 ohms from 60Hz to 20 kHz, 10 % total har-monic distortionOutput terminals:Speakers; 6 ohmsHeadphones; 16-50 ohms(recommended; 32 ohms)Input terminals:Video/Auxiliary (audio signal);500 mV/47 kohmsG Compact disc player sectionType:3-disc multi-play compactdisc playerSignal readout:Non-contact, 3-beam semi-conductor laser pickupD/A converter:1-bit D/A converterFrequencyresponse:20 - 20,000 HzDynamic range:90 dB (1 kHz)G Cassette deck sectionFrequency response:50-14,000 Hz (Normal tape)Signal/noise ratio:55 dB (TAPE 1, playback)50 dB (TAPE 2, recording/playback)Wow and flutter:0.3 % (WRMS)G Speaker sectionType:3-way type 3-15/16 (10 cm) woofer,3-15/16 (10 cm) woofer and 2 (5 cm) tweeterMaximum input power: 100 WRated input power:50 WImpedance:6 ohmsDimensions:Width; 9-1/8 (231.5 mm)Height; 13 (330 mm)Depth; 8-1/4 (210 mm)Weight:6.8 lbs. (3.1 kg)/eachOutput power:( for Canada)RMS; 100 W (50 W + 50 W) (10 % T.H D )G Tuner sectionFrequency range:FM; 87.5-108 MHzAM; 530-1,720 kHzTO EXPOSEDMETAL PARTSCONNECT TOKNOWN EARTHGROUNDTEST PROBE0.15 F1.5k ohms10WVTVMAC SCALERadioFans.CN 收音机爱 好者资料库 3 CD-BA150NAMES OF PARTSCD-BA150123 458 9671012 13 14221511251718192021222326272829 30 31 32 33 3424163536I Front panel1.(CD) Disc Tray12.Spectrum Analyzer/Volume Level Indicator13.Extra Bass Indicator14.FM Stereo Indicator15.FM Stereo Mode Indicator16.(CD) Repeat Indicator17.Sleep Indicator18.(CD/TUNER) Memory Indicator19.(TAPE 2) Record Indicator10.(CD) Disc Number Indicators11.Timer Play Indicator12.(CD) Pause Indicator13.(CD) Play Indicator14.Timer Record Indicator15.(TAPE) Play Indicator16.(CD) Track Down/Review Button3(TUNER) Preset Down Button3(TAPE 2) Rewind Button17.(CD) Track Up/Cue Button3(TUNER) Preset Up Button3(TAPE 2) Fast Forward Button18.Timer Set Indicator19.Power On/Stand-by Button20.Clock Button21.Timer/Sleep Button22.Function Selector Buttons23.Dimmer Button24.Volume Up/Down Buttons25.Equalizer Mode Selector Button26.Extra Bass/Demo Mode Button 27.(CD) Open/Close Button28.Headphone Socket29.Tuning and Time Up/Down Buttons30.Memory/Set Button31.(CD/TAPE) Stop Button32.(CD) Play/Repeat Button3(TAPE) Play Button33.(TAPE 2) Record Pause Button34.(CD) Disc Skip Button35.(TAPE 1) Cassette Compartment36.(TAPE 2) Cassette CompartmentCD-BA150 4 CP-BA150312412341234891011127651413151922201817162123I Rear panel11.AC Power Input Socket12.FM/AM Loop Aerial Socket13.Video/Auxiliary (Audio Signal) Input Sockets14.Speaker TerminalsI Front speaker11.Tweeter12.Bass Reflex Duct13.Woofers14.Speaker Wire I Remote control 11.Remote Control Transmitter LEDG CD control section12.Disc Number Select Buttons13.Memory Button14.Pause Button15.Clear Button16.Track Down/Review Button17.Track Up/Cue Button18.Disc Skip Button19.Play/Repeat Button10.Stop Button11.Random ButtonG Tuner control section12.Preset Up/Down ButtonsG Tape control section13.(TAPE 1) Play Button14.(TAPE 2) Record Pause Button15.(TAPE 1/2) Stop Button16.(TAPE 2) Play Button17.(TAPE 2) Rewind Button18.(TAPE 2) Fast Forward ButtonG Common section19.Equalizer Mode Selector Button20.Function Selector Buttons21.On/Stand-by Button22.Extra Bass Button23.Volume Up/Down Buttons 5 CD-BA150OPERATION MANUALSETTING THE CLOCK POWER ON/ STAND-BYCLOCKMEMORY/SETTUNING/TIME( )In this example, the clock is set for the 12-hour (AM 12:00) sys-tem.1Press the ON/STAND-BY 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 timedisplay 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 installedor it has been reset.5Press the MEMORY/SET button.6Press the TUNING/TIME ( or ) button to adjust the hour.G Press the TUNING/TIME ( or ) button once to advancethe 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.8Press the TUNING/TIME ( or ) button to adjust theminutes.G Press the TUNING/TIME ( or ) button once to advancethe time by 1 minute. Hold it down to change the time in 5minute intervals.G The hour setting will not advance even if minutes advance from59 to 00.9Press the MEMORY/SET button.G The clock starts operating from 0 second. (Seconds are not displayed.) And then the clock display will disappear after a few seconds.To see the time display:Press the CLOCK button.G The time display will appear for about 5 seconds.Note:G The clock display will flash on and off at the push of the CLOCKbutton when the AC power supply is restored after a powerfailure occurs or after the AC power cord is disconnected.If this happens, follow the procedure below to change the clocktime.To change the clock time:xPress the CLOCK button.yWithin 5 seconds, press the MEMORY/SET button.zPerform steps 6 - 9 above.To change the time display mode:xPerform steps 1 - 2 in the section RESETTING THEMICROCOMPUTER, on page 15.yPerform steps 1 - 9 above.(Main unit operation)AM 12:00AM 0:000:0023476589RESETTING THE MICROCOMPUTERReset the microcomputer under the following conditions:G To erase all of the stored memory contents (clock and timersettings, and tuner and CD presets).G If the display is not correct.G If the operation is not correct.1Press the ON/STAND-BY button to enter the stand-by mode.2While pressing down the button and the X-BASS/DEMObutton, hold down the ON/STAND-BY button for at least 1second.G CLEAR AL will appear.Caution:G The operation explained above will erase all data stored inmemory including clock and timer settings, and tuner and CDpresets.X-BASS/DEMO POWER ON/ STAND-BYCD-BA150 6 MINI COMPONENT SYSTEMQuick Guide/Gua rpidaCD-BA150G Remote control x 1GControlador remoto x 1G 2 “AA” batteriesGDos pilas “AA”Remote SensorSensor remoto2Preparation for use / Preparacin para su uso1Check the supplied accessories / Compruebe los accesorios suministradosG FM/AM loop antenna x 1GAntena de cuadro deFM/AM x 1G Batteries are not included.GLas pilas no estn incluidas.8” - 20 (0.2m - 6m)0,2m - 6mI Speaker connectionIConexin de los altavocesI Antenna connectionIConexin de las antenasFront speaker(Right)Altavoz delantero(Derecho)Front speaker(Left)Altavoz delantero(Izquierdo)G AM Loop AntennaGAntena de cuadro de AMG FM AntennaGAntena de FMG AC 120 V, 60 HzG120 V de CA, 60 HzRedRojoI Switching between power-on and stand-by modeICambio entre la conexin de la alimentacin y elmodo de reservaI Remote controlIControlador remoto1515BlackNegroG AC power cord x 1GCable de alimentacin deCA x 13Listening to a CD / Audicin de discos CD4Listening to a tape / Audicin de una cinta5Listening to the radio / Audicin de la radio6Recording from CDs / Grabaciones de discos CD7Sound control / Control del sonidoG Label facing upGEtiqueta hacia arribaI To stop the playbackIPara detener la reproduccinI To stop the recordingIPara detener la grabacinG Load the disc to be recorded.GIntroduzca el disco que va a grabar.G CD recording starts.GLa grabacin de CD empieza.I VolumeIVolumenI Extra bass (X-BASS)IGraves extra (X-BASS)I Pre-programmed equalizerIEcualizador preprogramadoPrinted in MalaysiaImpreso en MalaysiaTINSZ0502AWZZ A9910.HKFLATROCKPOPSJAZZCLASSICVOCALI To stop the playbackIPara detener la reproduccinTAPE 1TAPE 2TAPE 2 7 CD-BA1501Top Cabinet1. Screw . (A1) x47-12Side Panel1. Screw . (B1) x87-1(Left/right)3CD Player Unit/1. Turn on the power supply,7-2CD Tray Cover open the disc tray, take out the CD cover, and close. (Note 1)2. Screw . (C1) x13. Hook. (C2) x34. Hook. (C3) x25. Socket . (C4) x24Main PWB/1. Screw . (D1) x87-2,8-2Rear Panel2. Socket . (D2) x38-23. Flat Cable. (D3) x14. Lug Wire. (D4) x15. Flat Wire. (D5) x15Front Panel1. Screw . (E1) x28-26Display PWB1. Screw .(F1) x158-32. Flat Cable. (F2) x17Tape Mechanism1. Open the cassette holder.8-32. Screw. (G1) x68Headphones PWB1. Screw . (H1) x18-39Turntable1. Hook. (J1) x28-42. Cover . (J2) x110Disc Tray1. Turn fully the lock lever in the7-3arrow direction.2.While holding the lock lever,rotate8-1the cam gear until the cam gearrib engages with the clamp lever.3. Push the slide holder backward to8-5engage the claw with the grooveand remove it in the directionof the arrow. .(K1) x611CD Servo PWB1. Screw . (L1) x18-6(Note 2)2. Hook. (L2) x23. Socket . (L3) x412CD Mechanism1. Hook. (M1) x29-12. Hook. (M2) x313Loading Motor PWB1. Hook. (N1) x59-1DISASSEMBLYCaution on DisassemblyFollow the below-mentioned notes when disassemblingthe unit and reassembling it, to keep it safe and ensureexcellent performance:1. Take cassette tape and compact disc out of the unit.2. Be sure to remove the power supply plug from the walloutlet before starting to disassemble the unit.3. Take off nylon bands or wire holders where they need beremoved when disassembling the unit. After servicingthe unit, be sure to rearrange the leads where they werebefore disassembling.4. Take suffcient care on static electricity of integratedcircuits and other circuits when servicing.Figure 7-2Figure 7-3CD-BA150STEPREMOVALPROCEDUREFIGURENote 1:How to open the changer manually. (Fig. 7-3)1. In this state, turn fully the lock lever in the arrow directionthrough the hole on the loading chassis bottom.2. While holding the lock lever, rotate the cam gear anticlockwiseuntil the cam gear rib engages with the clamp lever. (Fig. 8-1)3. After that, push forward the CD slide holder.Note 2:1. After removing the connector for the optical pickup from theconnector, wrap the conductive aluminium foil around thefront end of the connector so as to protect the optical pickupfrom electrostatic damage.Figure 7-1CD-BA150Note 3:1. Be careful not to break the claw of the CD mechanism.2. When fining back the cam gear assembly, let it lock by frontmovement.(B1)x43x12mm(B1)x23x10mmRearPanel(B1)x23x10mmSide Panel(Right)Side Panel(Left)(A1)x23x12mm(A1)x23x12mmTop Cabinet(D1)x23x10mm(C3)x1(C1)x13x10mm(D1)x43x10mmCD PlayerUnitCD Tray CoverRearPanelPull(C3) x1(C4)x2(C2) x3112Main PWBCD ServoPWBLOCK LEVERCD-BA150 8 Figure 8-2Figure 8-3Figure 8-4Figure 8-5Figure 8-6TurntableDisc Tray(J2) x1CD Player Unit(J1) x212(K1) x3(K1) x3(L3) x2(L2) x2(L3) x2CD ServoPWBCD PlayerBase(L1)x13x8mm(E1)x23x10mm(D1)x23x10mm(D3)x1(D4)x1(D2)x2(D2)x1Main PWB(D5)x1HeadphonesPWB(F1)x153x10mm(F2)x1(G1)x63x10mm(H1)x13x10mmDisplay PWBOpenCassetteHolderTapeMechanismCLAMP LEVERCAM GEAR RIBFigure 8-1 9 CD-BA150CP-BA1501Woofer1. Screw . (B1) x89-32Tweeter1. Screw . (D1) x29-3STEPREMOVALPROCEDUREFIGURECP-BA150Figure 9-2Figure 9-1Figure 9-3ScrewDriverDriver shouldbe pried awayfrom SpeakerBox.(D1)x44x16mm(D2)x23x10mm(D1)x44x16mm(M2) x3(M1) x1(N1) x5(M1) x1LoadingMotorPWBCDMechanismCam GearCD-BA150 10 REMOVING AND REINSTALLING THE MAIN PARTSTAPE MECHANISM SECTIONPerform steps 1 to 5 and 7 of the disassembly method toremove the tape mechanism.How to remove the record/playback and eraseheads (TAPE 2) (See Fig. 10-1)1. Carefully remove the record/playback head and erase headscrew (A1) x 2 pcs.How to remove the playback head (TAPE 1)(See Fig. 10-2)1. Carefully remove the playback head screw (B1) x 2 pcs.How to remove the pinch roller (TAPE 1/2)(See Fig. 10-3)1. Carefully bend the pinch roller pawl in the direction of thearrow , and remove the pinch roller (C1) upwards.Note:When installing the pinch roller, pay attention to the springmounting position.How to remove the belt (TAPE 1) (See Fig. 10-4)1. Remove the main belt (D1) x 1 pc., from the motor side.2. Remove the FF/REW belt (D2) x 1 pc.How to remove the belt (TAPE 2) (See Fig. 10-4)1. Remove the main belt (E1) x 1 pc., from the motor side.2. Remove the FF/REW belt (E2) x 1 pc.How to remove the motor (See Fig. 10-5)1. Remove the screws (F1) x 2 pcs., to remove the motor.Figure 10-1Figure 10-2Figure 10-3Figure 10-4Figure 10-5TAPE2TAPE1Main Belt(D1)x1TAPE2Main Belt(E1)x1TAPE1Main BeltFF/REWBelt(E2)x1FF/REWBelt(D2)x1MotorMotor(A1)x22 x 9mmTAPE2Record/PlaybackHeadErase Head(B1)x22 x 9mmTAPE1PlaybackHeadPinch Roller(C1)x1(F1) x2 2.6 x 5mmMotor 11 CD-BA