Sony-CDPCE275-cd-sm 维修电路原理图.pdf

SERVICE MANUALCOMPACT DISC PLAYERUS ModelCanadian ModelAustralian ModelCDP-CE275/CE375AEP ModelUK ModelE ModelCDP-CE375SPECIFICATIONSCDP-CE275/CE375Photo: CDP-CE375Model Name Using Similar MechanismCDP-CE345CD Mechanism TypeCDM59-5BD27Base Unit NameBU-5BD27Optical Pick-up NamePXR-104XVer 1.1 2001.07Compact disc playerLaserSemiconductor laser ( = 780 nm)Emission duration : continuousFrequency response2 Hz to 20 kHz 0.5 dBDynamic rangeMore than 93 dBHarmonic distortionLess than 0.0045%OutputsJackMaximumLoadtypeoutput levelimpedanceANALOGPhono2 VOver 10OUTjacks(at 50 kilohms)kilohmsDIGITALOptical18 dBmWaveOUToutputlength:(OPTICAL)connector660 nmPHONESStereo10 mW32 ohms(CDP-CE375phoneonly)jackGeneralPower requirements120 V AC, 60 HzPower consumption11 WDimensions (approx.)430 x 110 x 400 mm(w/h/d)(17 x 4 3/8 x 15 3/4 in.)incl. projecting partsMass (approx.)5 kg (11 lbs 1 oz)Supplied accessoriesAudio cord (2 phono plugs 2 phono plugs) (1)Remote commander (remote) (1) (CDP-CE375 only)R6 (size AA) batteries (2) (CDP-CE375 only)Design and specifications are subject to change without notice.9-873-822-12Sony Corporation2001G0500-1Home Audio CompanyC 2001.7Shinagawa Tec Service Manual Production GroupRadioFans.CN 收音机爱 好者资料库2CDP-CE275/CE375TABLE OF CONTENTS1.SERVICING NOTES.32.GENERAL.43.DISASSEMBLY.54.TEST MODE. 105.ELECTRICAL ADJUSTMENTS. 136.DIAGRAMS6-1.Note for Printed Wiring Boardsand Schematic Diagrams . 156-2.Printed Wiring Board BD Board . 166-3.Schematic Diagram BD Board . 176-4.Printed Wiring Boards JUNCTION/SENSOR/LOADING MOTOR Boards . 186-5.Schematic Diagram JUNCTION/SENSOR/LOADING MOTOR Boards . 196-6.Printed Wiring Board MAIN Board . 206-7.Schematic Diagram MAIN Board . 216-8.Printed Wiring Boards PANEL Section . 226-9.Schematic Diagram PANEL Section . 236-10. IC Pin Function Description . 267.EXPLODED VIEWS. 308.ELECTRICAL PARTS LIST. 35ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT!LES COMPOSANTS IDENTIFIS PAR UNE MARQUE 0SUR LES DIAGRAMMES SCHMATIQUES ET LA LISTEDES PICES SONT CRITIQUES POUR LA SCURITDE FONCTIONNEMENT. NE REMPLACER CES COM-POSANTS QUE PAR DES PICES SONY DONT LESNUMROS SONT DONNS DANS CE MANUEL OUDANS LES SUPPLMENTS PUBLIS PAR SONY.SAFETY-RELATED COMPONENT WARNING!COMPONENTS IDENTIFIED BY MARK 0 OR DOTTEDLINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMSAND IN THE PARTS LIST ARE CRITICAL TO SAFEOPERATION. REPLACE THESE COMPONENTS WITHSONY PARTS WHOSE PART NUMBERS APPEAR ASSHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-LISHED BY SONY.SAFETY CHECK-OUTAfter correcting the original service problem, perform the follow-ing safety check before releasing the set to the customer:Check the antenna terminals, metal trim, “metallized” knobs,screws, and all other exposed metal parts for AC leakage.Check leakage as described below.LEAKAGE TESTThe AC leakage from any exposed metal part to earth ground andfrom all exposed metal parts to any exposed metal part having areturn to chassis, must not exceed 0.5 mA (500 microamperes.).Leakage current can be measured by any one of three methods.1.A commercial leakage tester, such as the Simpson 229 or RCAWT-540A. Follow the manufacturers instructions to use theseinstruments.2.A battery-operated AC milliammeter. The Data Precision 245digital multimeter is suitable for this job.3.Measuring the voltage drop across a resistor by means of aVOM or battery-operated AC voltmeter. The “limit” indica-tion is 0.75 V, so analog meters must have an accurate low-voltage scale. The Simpson 250 and Sanwa SH-63Trd are ex-amples of a passive VOM that is suitable. Nearly all batteryoperated digital multimeters that have a 2 V AC range are suit-able. (See Fig. A)Fig. A.Using an AC voltmeter to check AC leakage.1.5 k0.15 FACvoltmeter(0.75 V)To Exposed MetalParts on SetEarth GroundVer 1.1 2001.07RadioFans.CN 收音机爱 好者资料库3CDP-CE275/CE375LASER DIODE AND FOCUS SEARCH OPERATIONCHECKCarry out the “S curve check” in “CD section adjustment” andcheck that the S curve waveforms is output three times.Notes on chip component replacement Never reuse a disconnected chip component. Notice that the minus side of a tantalum capacitor may be dam-aged by heat.Flexible Circuit Board Repairing Keep the temperature of the soldering iron around 270 C dur-ing repairing. Do not touch the soldering iron on the same conductor of thecircuit board (within 3 times). Be careful not to apply force on the conductor when solderingor unsoldering.SECTION 1SERVICING NOTESCAUTIONUse of controls or adjustments or performance of proceduresother than those specified herein may result in hazardous ra-diation exposure.This appliance is classified as a CLASS 1 LASER product.The CLASS 1 LASER PRODUCT MARKING is located onthe rear exterior.The laser diode in the optical pick-up block may suffer electro-static break-down because of the potential difference generatedby the charged electrostatic load, etc. on clothing and the humanbody.During repair, pay attention to electrostatic break-down and alsouse the procedure in the printed matter which is included in therepair parts.The flexible board is easily damaged and should be handled withcare.NOTES ON LASER DIODE EMISSION CHECKThe laser beam on this model is concentrated so as to be focusedon the disc reflective surface by the objective lens in the opticalpick-up block. Therefore, when checking the laser diode emis-sion, observe from more than 30 cm away from the objective lens.NOTES ON HANDLING THE OPTICAL PICK-UPBLOCK OR BASE UNITHOW TO OPEN THE DISC TABLE WHEN POWERSWITCH TURNS OFFInsert a tapering driver into the aperture of the unit bottom, andturn it in the direction of the arrow (to OUT direction).Part No.ModelPart No.CDP-CE275: US model4-233-719-0sCDP-CE275: Canadian model4-233-719-1sCDP-CE275: Australian model4-233-719-2sCDP-CE375: US model4-233-718-0sCDP-CE375: Canadian model4-233-718-1sCDP-CE375: AEP model4-233-718-2sCDP-CE375: UK model4-233-718-3sCDP-CE375: Australian model4-233-718-4sCDP-CE375: E model4-233-718-5sCDP-CE375: Singapore model4-233-718-6sMODEL IDENTIFICATION BACK PANEL tabletapering driver*To close the disc table, turn the tapering driver in the reverse direction (to IN direction).gear (U/D)gear (RV)gear, swingNOTE FOR MAIN GEAR INSTALLATION4CDP-CE275/CE375SECTION 2GENERAL LOCATION OF CONTROLS Front panel 1POWER button2DISC1 DISC5 button3Fluorescent indicator tube display4H button5X button6x button7EX-CHANGE button8DISC SKIP button9l AMS L control0A OPEN/CLOSE buttonqaPHONES jack Rear panel 1DIGITAL OUT OPTICAL connector2ANALOG OUT1212346 7958qsqd0qfqgqhqjqaqkw;qlwawsqsCLEAR buttonqdCHECK buttonqfEDIT buttonqgM buttonqhm buttonqjDisc tableqkTIME buttonqlREPEAT buttonw;FADER buttonwaPEAK SEARCH buttonwsPLAY MODE button5CDP-CE275/CE3753-1. CASENote: Follow the disassembly procedure in the numerical order given.SECTION 3DISASSEMBLY The equipment can be removed using the following procedure.SetCaseFront Panel AssyBase Unit (BU-5BD27)Optical Pick-upTray, Table Assy CD Mechanism BlockSensor BoardJnuction Board, Loading Motor Board3two screws (BVTP 3x8)4case562two screws (case 3TP2)1two screws (case 3TP2)7panel, loading6CDP-CE275/CE3753-3. CD MECHANISM BLOCK (CDM59-5BD27)3-2. FRONT PANEL ASSY5 three screws (BVTP 3x8)6 claw8 front panel assy7 claw1 CN6014 CN3513 CN3012 CN6023 three screws (BVTP 3x8)4 two screws (BVTP 3x8)5 tray6 two screws (BVTP 3x8)7 CDM59-5BD271 CN3022 CN3117CDP-CE275/CE3753-4. BASE UNIT (BU-5BD27)3-5. TRAY, TABLE ASSY1 two screws (+PTPWHM 2.6), floating3 two screws (+PTPWHM 2.6), floating2 two screws (+PTPWHM 2.6), floating7 base unit (BU-5BD27)4 holder (BU) assy5 spring (932), compression6 spring (932), compression1 two screws (M 2.6), +BTTP2 bracket (guide)7 table assy54 bracket (guide)3 three screws (M 2.6), +BTTP6 CN158 screw(+PTPWHM 2.6), floating9 tray8CDP-CE275/CE3753-7. JUNCTION BOARD, LOADING MOTOR BOARD3-6. SENSOR BOARD2 two screws (M 2.6), +BTTP4 SENSOR board3 two screws (M 2.6), +BTTP1 belt (rotary)table assy3 three screws (M 2.6), +BTTP6 two screws (M 2.6), +BTTP4 JUNCTION board7 LOADING MOTOR board5 belt (loading)1 CN142 CN139CDP-CE275/CE3753-8. OPTICAL PICK-UP12 shaft, sled3 optical pick-up4 connector10CDP-CE275/CE375SECTION 4TEST MODEADJ MODENOTE: This mode cannot be performed without a general remote com-mander.1.Chuck the CD first, and then turn OFF the power.2.Short-circuit the test point TP1 (ADJ) of the MAIN board andground with a lead wire.3.Press the POWER button to turn ON the power.The CD is playback automatically and the ADJ mode is set.4.To exit the mode, press the POWER button to turn OFF thepower. Prohibits high speed search during accessing Ignores even if GFS becomes “L”ADJ Mode Special Function TableButtonFunctionPLAY MODEAuto gain display(Focus, Tracking and Sledding)EDITRFCK GFS Error rate displayFLUORESCENT INDICATOR TUBE ALL LIT, ANDKEY CHECK MODE1.Short-circuit the test TP2 (AFADJ) of the MAIN board andground with a lead wire.2.Press the POWER button to turn ON the power.The whole fluorescent indicator tube lights up.3.All buttons have individual button numbers.When a button is pressed, the button number is counted upand displayed.When remote controller signals are received, “RM *” will bedisplayed.(* are the numbers corresponding to the remote controllerbuttons.)When using the remote controller, switch the CD1/2/3 switchto CD1.4.To exit the mode, press the POWER button to turn OFF thepower.Count up displayDisplays button number10Connecting Location: MAIN BOARD (Component Side) TP1 (ADJ)TP2 (AFADJ)CN301JW68JW66Ver 1.1 2001.0711CDP-CE275/CE375Buttons and Corresponding Button NumbersButtonButton Number or DisplayDISC112DISC211DISC310DISC49DISC58PLAY MODE20PEAK SEARCH19FADER18REPEAT17TIME16H (PLAY)Partial lighting 1X (PAUSE)Partial lighting 2x (STOP)All litEX-CHANGE35DISC SKIP36m24M25EDIT26CHECK27CLEAR28AMS (push)37AMS (turn)When rotated clockwise: The music calendarnumerals light up in ascending order.When rotated counterclockwise: The musiccalendar numerals light up in descendingorder.RLight altematelyr1SECSTEPMINPEAKTRACKDISC23456789 1011 12 13 14 1516 17 18 19 20ALL1DISCS PROGRAM SHUFFLEREPEAT 1EDITTIMEFADEABAll litSECMINTRACKPartial lighting 11STEPPEAKDISC2345678ALL1DISCS135791113151820Partial lighting 2246810121416 1719RLight altematelyrVer 1.1 2001.0712CDP-CE275/CE375AGING MODEFor the aging mode, three modes of all mode, disc table mode, and loading mode are available.This set has the Aging mode for operation check of the mechanism deck. If a failure occurredThe aging operation stops and a faulty status is displayed on the fluorescent indicator tube. If no failure occursThe aging operation continues repeatedly.Note: Do not use the test disc when performing aging.Aging will not be performed properly if discs with tracks shorter than 4 seconds are used.Procedure:1.Press the POWER button and turn ON the power.2.Set discs on all trays.(More than two discs if five are not available)3.All mode:Press the CHECK, PLAY MODE andxbuttons at the same time.Disc table mode:Press the CHECK, PLAY MODE and SKIP buttons at the same time.Loading mode:Press the CHECK, PLAY MODE and EX-CHANGE buttons at the same time.4.Aging starts, and the fluorescent indicator tube will display the following.5.To exit the mode, press the POWER button to turn OFF the power.Code No.StatusAll modeDisc tableLoadingDisplay inDisplay inmodemodeNormal operationcase of failure0CLOSE (Tray closed)aaA-0Err 01TOC readingaaaA-1Err 12Access to last trackaA-2Err 23Play of last track (3 sec)aCounter displayErr 34EX OPEN (Tray opened while chucking)aaA-4Err 45EX SKIP (Disc tray rotated)aA-5Err 56EX CLOSE (Tray closed)aaA-6Err 67Access to first trackaA-7Err 78Play of first track (3 sec)aCounter displayErr 89OPEN (tray opened)aaA-9Err 9ADISC SKIP (Disc tray rotated,aaA-AErr Aand next disc was selected)The discs are selectie in the order of DISC1 DISC2 DISC3 DISC4 DISC5 DISC1 . Empty trays are skipped.But the order is random in the disc table mode.MECHANISM DECK CHECK MODEFor the mechanism deck check mode, two modes of disc table mode and loading mode are available.In the mechanism deck check mode, the disc table turning time and the loading time in each section are measured and displayed.Procedure:Disc table mode:Press the POWER switch while pressingH, OPEN/CLOSE and REPEAT buttons simultaneously.Loading mode:Press the POWER switch while pressingH, OPEN/CLOSE and TIME buttons simultaneously.AADisplay contentsModeCheck commandDisplayDisc table mode0: Right one turnr 12.5Table turning1: Left one TurnL 10.2( time measurement )2: Measurement endr 12.53: Undefined4: Star positionSta .5: Open CloseCLo 10.26: Close BU upUP0.7Table mode7: BU up EX openEoP6.2Loading time8: EX open EX closeECL 10.3( measurement )9: EX close BU downdon1.2A: BU down OpenoPn9.3FF: Measurement endCLo 10.2Ver 1.1 2001.0713CDP-CE275/CE375Ver 1.1 2001.07Note:1. CD Block is basically designed to operate without adjustment. There-fore, check each item in order given.2. Use PATD-012 disc (4-225-203-01) unless otherwise indicated.3. Use an oscilloscope with more than 10M impedance.4. Clean the object lens by an applicator with neutral detergent when thesignal level is low than specified value with the following checks.S Curve CheckConnection:Procedure:1.Set the test disc (PATD-012). Disc chucking operation iscomplete, then press the POWER button to turn the poweroff.2.Connect an oscilloscope to test point TP (FE1) and TP (VC)on the BD board.3.Connect between test point TP (ADJ) on the MAIN board andGND by lead wire.4.Press the POWER button to turn the power on and enter theADJ mode.Then playback the number two track automatically, press thexbutton to stop the playback.5.Press the CHECK button actuate the focus search. (actuatethe focus search when disc table is moving in and out)6.Check the oscilloscope waveform (S-curve) is symmetricalbetween A and B. And confirm peak to peak level within 2 1Vp-p.S-curve waveformNote: Try to measure several times to make sure than the ratio of A : Bor B : A is more than 10 : 7. Take sweep time as long as possible and light up thebrightness to obtain best waveform.Checking Location: BD boardRFDC Level CheckConnection:+BD boardTP (FE1)TP (VC)oscilloscopeABsymmetrywithin 2 1 Vp-p+BD boardTP (RFDC)TP (VC)oscilloscopeVOLT/DIV: 200 mVTIME/DIV: 500 ns level: 1.15 0.35 Vp-pVCProcedure:1.Set the test disc (PATD-012). Disc chucking operation iscomplete, then press the POWER button to turn the poweroff.2.Connect an oscilloscope to test point TP (RFDC) and TP (VC)on the BD board.3.Connect between test point TP (ADJ) on the MAIN board andGND by lead wire.4.Press the POWER button to turn the power on and enter theADJ mode, then playback the number two track automatically.5.Confirm that oscilloscope waveform is clear and check the levelof between RFDC top and VC is correct or not.Note: A clear RFDC signal waveform means that the shape “” can beclearly distinguished at the center of the waveform. RFDC signal waveformChecking Location: BD boardRFAC Level CheckConnection:Procedure:1.Set the te