Sony-CDPCE245-cd-sm 维修电路原理图.pdf

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1、SERVICE MANUALCOMPACT DISC PLAYERUS ModelCanadian ModelCDP-CE245/CE345AEP ModelUK ModelE ModelCDP-CE345Australian ModelCDP-CE245/CE345SPECIFICATIONSCDP-CE245/CE345Photo: CDP-CE345 (Silver TYPE)Model Name Using Similar MechanismNEWCD Mechanism TypeCDM59-5BD32ABase Unit NameBU-5BD32AOptical Pick-up Na

2、meKSS-213BA/F-NPRadioFans.CN 收音机爱 好者资料库2TABLE OF CONTENTS1.SERVICING NOTES.32.GENERAL.43.DISASSEMBLY.54.TEST MODE. 105.ELECTRICAL CHECKING. 146.DIAGRAMS6-1.Note for Printed Wiring Boardsand Schematic Diagrams . 176-2.Printed Wiring Board BD Board . 186-3.Schematic Diagram BD Board . 196-4.Printed Wi

3、ring Boards JUNCTION/SENSOR/LOADING MOTOR Boards . 206-5.Schematic Diagram JUNCTION/SENSOR/LOADING MOTOR Boards . 216-6.Printed Wiring Board MAIN Board . 226-7.Schematic Diagram MAIN Board . 236-8.Printed Wiring Boards PANEL Section . 246-9.Schematic Diagram PANEL Section . 256-10. IC Pin Function D

4、escription . 297.EXPLODED VIEWS. 338.ELECTRICAL PARTS LIST. 39ATTENTION 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 SON

5、Y 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

6、 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 ex

7、posed 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

8、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 r

9、esistor 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 A

10、C 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 GroundRadioFans.CN 收音机爱 好者资料库3LASER DIODE AND FOCUS SEARCH OPERATIONCHECKCarry out the “S curve check” in “CD section adjustment” andcheck that the S cu

11、rve 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

12、 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

13、 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 ele

14、ctrostatic 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

15、 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 B

16、ASE 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).tabletapering driver*To close the disc table, turn the tapering driver in the reverse direction (to IN direction).Pa

17、rt No.ModelPart No.CDP-CE245: US model4-224-877-0sCDP-CE245: Canadian model4-224-877-1sCDP-CE245: Australian model4-224-877-2sCDP-CE345: US model4-224-878-0sCDP-CE345: Canadian model4-224-878-1sCDP-CE345: AEP model4-224-878-2sCDP-CE345: UK model4-224-878-3sCDP-CE345: Australian model4-224-878-4sCDP-

18、CE345: E model4-224-878-5sCDP-CE345: Singapore model4-224-878-6sCDP-CE345: Saudi Arabia model4-224-878-7sMODEL IDENTIFICATION BACK PANEL 4SECTION 2GENERAL LOCATION OF CONTROLS Front panel 123467958qaqs0qdqfqgqhqaqjqkw;qlwswawdwf2 311POWER button2DISC1 DISC5 button3Fluorescent indicator tube display4

19、MUSIC SCAN button5FADER button6H button7X button8x button9A OPEN/CLOSE button0DISC SKIP buttonqal AMS L controlqsEX-CHANGE buttonqdCLEAR buttonqfCHECK buttonqgM buttonqhm buttonqjDisc tableqkTIME buttonqlREPEAT buttonw;PROGRAM buttonwaSHUFFLE buttonwsCONTINUE buttonwdPEAK SEARCH buttonwfEDIT/TIME FA

20、DE button1Voltage selector switch (E and Saudi Arabia models only)2DIGITAL OUT OPTICAL connector3ANALOG OUT Rear panel 5COVER (409537)FRONT PANEL SECTIONNote: Follow the disassembly procedure in the numerical order given.SECTION 3DISASSEMBLY1 two screws(case3 TP2)3 cover (409537)2 two screws(BVTP3 8

21、)1 two screws(case3 TP2)2 two connectors(CN601, 602)4 claw3 three screws(BVTP3 8)5 front panel section4 claw1 wire (flat type) (37 core)(CN301)6CD MECHANISM DECK (CDM59-5BD32A)MAIN BOARD3 three screws(BVTP3 8)2 three screws(BVTP3 8)7 wire (flat type) (21 core)(CN302)8 connector (CN311)5 screw(BVTP3

22、8)4 Slide the tray until the screwthat fixes the table assy can beseen through around hole in the table assy.1 Insert a tapering driver from the bottom of the chassis, and turn it in the direction of the arrow until the base unitgoes down to the lowest position.69 CD mechanism deck(CDM59-5BD32A)aa3

23、two screws(PTTWH3 6)2 two screws(BVTP3 8)5 MAIN board1 two screws(BVTP3 8)4 two PC board holders7BASE UNIT (BU-5BD32A)4 two screws(PTPWH M2.6)4 two screws(PTPWH M2.6)5 base unit (BU-5BD32A)1 wire (flat type) (21 core)(CN101)6 four compression springs (932)32 two screws(PTPWH M2.6)7 holder (BU) assyl

24、ever (lifter)BU sectionNote: When installing the BUon the chassis, set thelever (lifter) in freeposition, the gear (U/D)in UP position, and insert the shaft into the groove of gear (U/D).gear (U/D)bbTABLE ASSYNote: When installing the table assy on the chassis assy, engage the gear (loading C) with

25、the groove by looking into the gear through a hole in the table assy.qs table assy9 three screws(BTTP M2.6)q; clampeccddeqa bracket (guide)gear (loading C)7 two screws(BTTP M2.6)5 screw(BTTP M2.6)6 bracket (guide)2 two screws(BTTP M2.6)1 Slide the tray until the screw that fixes the bracket (guide)

26、can be seen through a roundhole , in the table assy.38 bracket (guide 2)4 wire (flat type) (6 core) (CN15)8TRAY, BELT (ROTARY), SENSOR BOARD1 screw(PTPWH M2.6)3 belt (rotary)4 two screws(BTTP M2.6)4 two screws(BTTP M2.6)5 SENSOR board2 trayBELT (LOADING ), LOADING MOTOR BOARD3 two screws(BTTP M2.6)4

27、 LOADING MOTOR board1 belt (loading)2 connector (CN13)9ADJUSTING PHASE OF SWING GEAR AND GEAR (U/D)Note: Follow the assembly procedure in the numerical order given.6 screw(PTPWH M2.6)5 stopper washer (FR)4 Push fully the shaft of shaft gear and align the hole shape of gear (loading B).3 Let the swin

28、g gear through under thechassis and engage its dowel with the groove of rotary encoder.2 Install the rotary encoder so thatits groove comes to the position shown in the figure.1 Insert the shaft gear up to the position where its shaft comesout by 5 mm.gghhfff7 gear (U/D)8 screw(PTPWH M2.6)q; screw(P

29、TPWH M2.6)circle markcircle markswing geargear (RV)Fig. Agear (U/D)9 gear (RV)Note: Align swing gear, a circle markon the gear (U/D), and the teethof gear (RV) to the position showing in the Fig. A.10SECTION 4TEST MODEADJ MODENOTE: This mode cannot be performed without a general remote com-mander.1.

30、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

31、. Prohibits high speed search during accessing Ignores even if GFS becomes “L”ADJ Mode Special Function TableButtonFunctionPROGRAMAuto gain display(Focus, Tracking and Sledding)CONTINUEServo average display 1(VC, FE and RF)SHUFFLEServo average display 2(TE and Traverse)FADERRFCK GFS Error rate displ

32、ayFLUORESCENT INDICATOR TUBE, LED ALL LIT,AND KEY 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 pre

33、ssed, the button number is counted upand displayed.When remote controller signals are received, “RM *” willbe displayed.(* 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 tu

34、rn OFF thepower.Count up displayDisplays button number10Checking Location: MAIN BOARD (Conductor Side) TP1(ADJ)TP2(AFADJ)(GND)IC301JW64JW6311Buttons and Corresponding Button NumbersButtonButton Number or DisplayCONTINUE12SHUFFLE11PROGRAM10REPEAT9DISC120DISC219DISC318DISC417DISC516H (PLAY)Partial lig

35、hting 1X (PAUSE)Partial lighting 2x (STOP)All lit (LED lighting)EX-CHANGE25DISC SKIP24A OPEN/CLOSE32AMS (button)26AMS (knob)When rotated clockwise: The music calendarnumerals light up in ascending order.When rotated counterclockwise: The musiccalendar numerals light up in descendingorder.FADER36MUSI

36、C SCAN37CLEAR27CHECK28M29m30PEAK SEARCH21TIME8TIME/TEXT22RLight altematelyr1SECSTEPMINPEAKTRACKDISC23456789 1011 12 13 14 1516 17 18 19 20ALL1DISCS PROGRAM SHUFFLEREPEAT 1EDITTIMEFADEABAll litSECMINTRACKPartial lighting 11STEPPEAKDISC2345678ALL1DISCS135791113151719Partial lighting 22468101214161820R

37、Light altematelyr12AGING 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 indicato

38、r 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.Aging method 1(When using the aging remote controller (J-2501-123-A):1.Set the remote co

39、ntroller CD1/2/3 switch to CD1.2.Press the POWER button and turn ON the power.3.Set discs on all trays.(More than two discs if five are not available.)4.Press the AGING START button of the aging remote controller.5.Aging starts, and the fluorescent indicator tube will display the following.6.To exit

40、 the mode, press the POWER button to turn OFF the power.Aging method 2(When no aging remote controller):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 CONTINUE,xand CHECK buttons at the same time.Disc table

41、 mode:Press the CONTINUE,xand DISC SKIP buttons at the same time.Loading mode:Press the CONTINUE,xand 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 mo

42、deDisc 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 CLO

43、SE (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 skipp

44、ed.13MECHANISM 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.1.Disc table mode:Press the POWER switch while pr

45、essing CHECK, OPEN/CLOSE and REPEAT buttons simultaneously.Loading mode:Press the POWER switch while pressing CHECK, 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: Me

46、asurement 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 10.214SECTION 5ELECTRICAL CHECKINGNote:1. CD Block is

47、 basically designed to operate without adjustment. There-fore, check each item in order given.2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated.3. Use an oscilloscope with more than 10 M impedance.4. Clean the object lens by an applicator with neutral detergent when thesignal level is lo

48、w than specified value with the following checks.S-Curve CheckProcedure:1.Connect oscilloscope to TP (FE) and TP (VC) on the BD board.2.Connect between TP (FE1) and TP (VC) with lead wire.3.Connect between TP (AGCCON) and TP (GND) with leadwire.4.Turned power switch (POWER button) on.5.Load a disc (

49、YEDS-18) and actuate the focus search. (In con-sequence of open and close the disc tray, actuate the focussearch)6.Cofirm that the oscilloscope waveform (S-curve) is symmetri-cal between A and B. And confirm peak to peak level within4 1 Vp-p.S-curve waveform7.After check, remove the lead wire connec

50、ted in step 2 and 3.Note: 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 the brightness toobtain best waveform.RF Level CheckProcedure:1.Connect oscilloscope to TP (RF) and TP (VC) on BD board.2.Connect