Sony-CDPCE250Z-cd-sm 维修电路原理图.pdf

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1、 US ModelCDP-C250Z/C350Z/CE305/CE405Canadian ModelAEP ModelCDP-CE305/CE405UK ModelCDP-CE405Australian ModelE ModelChinese ModelCDP-CE305/CE405SERVICE MANUALCOMPACT DISC PLAYERModel Name Using Similar MechanismCDP-C265/C365CD Mechanism TypeCDM27A2-5BD20Base Unit TypeBU-5BD20Optical Pick-up TypeKSS-21

2、3B/K-NSPECIFICATIONSCompact Disc PlayerLaserSemiconductor laser ( = 780 nm)Emission duration: continuousLaser outputMax 44.6 W*This output is the value measured at adistance of 200 mm from the objectivelens surface on the Optical Pick-upblock with 7 mm aperture.Frequency response2 Hz to 20 kHz 0.5 d

3、BSignal-to-noise ratioMore than 102 dBDynamic rangeMore the 98 dBHarmonic distortionLess than 0.0045%Channel separationMore than 100 dBOutputJackMaximumLoadtypeoutputimpedancelevelLINE OUTPhono2VOver 10 kilohmsjacks(at 50 kilohms)GeneralPower requirementsWhere purchasedPower requirementsUS, Canadian

4、120V AC, 60 HzAEP, UK, German,220-230V AC, 50/60 HzItalian, East EuropeanAustralian240V AC, 50/60 HzE110-120V, 220-240Vadjustable, 50/60 HzChinese220-240V AC, 50 HzPower consumption14WDimensions (approx.) 430 120 385 mm(w/h/d)(17 4 3/4 15 1/4 in.) incl. projectingpartsMass (approx.)5.6 kg (12 lbs 6

5、oz)Supplied accessoriesAudio cord (2 phono plugs2 phono plugs) (1)Remote commander (remote) (CDP-C350Z/CE405 only)Sony SUM-3 (NS) batteries (CDP-C350Z/CE405 only)AC plug adaptor (1) (E model only)Design and specifications are subject to change without notice.CDP-C250Z/C350Z/CE305/CE405Photo : CDP-CE

6、405MICROFILMRadioFans.CN 收音机爱 好者资料库 2 TABLE OF CONTENTSSection Title PageSECTION 1. GENERAL.5SECTION 2. DISASSEMBLY2-1.Case, Bottom Plate and Front Panel. 62-2.Back Panel and Disc Table.62-3.Optical Pick-up Block Assembly. 72-4.Bracket (Gear) Assembly. 7SECTION 3. ELECTRICAL BLOCK CHECKING.8SECTION

7、4. DIAGRAMS4-1.Circuit Boards Location . 104-2.Printed Wiring Board BD Section . 114-3.Schematic Diagram BD Section . 134-4.IC Block Diagrams . 154-5.Printed Wiring Board Main Section . 174-6.Schematic Diagram Main Section . 214-7.IC Pin Functions IC101 Digital Signal Processor (CXD2545Q). 24 IC303

8、System Control (CXP82320-064Q) . 27SECTION 5. EXPLODED VIEWS5-1.Front Panel and Case Section . 285-2.Back Panel and Disk Table Section . 295-3.Chassis Section. 305-4.Base Unit Section (BU-5BD20) . 31SECTION 6. ELECTRICAL PARTS LIST .32SAFETY-RELATED COMPONENT WARNING !COMPONENTS IDENTIFIED BY MARK !

9、 OR DOTTEDLINE WITH MARK ! 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 SUPPLEMENTSPUBLISHED BY SONY.ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT!LES COMPOSANTS IDENTIFIS

10、 PAR UNE MARQUE !SUR LES DIAGRAMMES SCHMATIQUES ET LALISTE DES PICES SONT CRITIQUES POUR LASCURIT DE FONCTIONNEMENT. NE REMPLACERCES COMPOSANTS QUE PAR DES PICES SONYDONT LES NUMROS SONT DONNS DANS CEMANUEL OU DANS LES SUPPLMENTS PUBLISPAR SONY.The following caution label is located inside of the un

11、it.This appliance is classifiedas a CLASS 1 LASERproduct.The CLASS 1 LASERPRODUCT MARKING islocated on the rear exterior.CAUTIONUse of controls or adjustments or performance ofprocedures other than those specified herein may result inhazardous radiation exposure.RadioFans.CN 收音机爱 好者资料库 3 MODEL IDENT

12、IFICATION BACK PANEL 4-978-CDP-C250ZUS Model: 490-7CDP-C350ZUS Model: 490-8CDP-CE305US Model: 490-0Canadian Model: 490-1AEP Model: 767-2German Model: 490-3Australian Model: 490-4E Model: 490-5Chinese Model: 490-6CDP-CE405US Model: 767-0Canadian Model: 767-1AEP, East Europian,Chinese Model: 767-2UK M

13、odel: 767-4German Model: 767-3E Model: 767-6Australian Model: 767-5SAFETY CHECK-OUT(US model only)After correcting the original service problem, perform thefollowing safety checks before releasing the set to the customer:Check the antenna terminals, metal trim, “metallized” knobs,screws, and all oth

14、er exposed metal parts for AC leakage. Checkleakage as described below.LEAKAGEThe AC leakage from any exposed metal part to earth groundand from all exposed metal parts to any exposed metal parthaving a return to chassis, must not exceed 0.5 mA (500microampers). Leakage current can be measured by an

15、y one ofthree methods.1.A commercial leakage tester, such as the Simpson 229 orRCA WT-540A. Follow the manufacturers instructions touse these instruments.2.A battery-operated AC milliammeter. The Data Precision 245digital multimeter is suitable for this job.3.Measuring the voltage drop across a resi

16、stor by means of aVOM or battery-operated AC voltmeter. The “limit”indication is 0.75 V, so analog meters must have an accuratelow-voltage scale. The Simpson 250 and Sanwa SH-63Trdare examples of a passive VOM that is suitable. Nearly allbattery operated digital multimeters that have a 2V AC rangear

17、e suitable. (See Fig. A)To Exposed MetalParts on Set0.15F1.5kACvoltmeter(0.75V)Earth GroundFig. A. Using an AC voltmeter to check AC leakage.NOTES ON HANDLING THE OPTICAL PICK-UPBLOCK OR BASE UNITThe laser diode in the optical pick-up block may sufferelectrostatic breakdown because of the potential

18、differencegenerated by the charged electrostatic load, etc. on clothing andthe human body.During repair, pay attention to electrostatic breakdown 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.N

19、OTES 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 diodeemission, observe from more than 30 cm away from the objectivelens. 4 HOW TO OPE

20、N THE DISC TRAY WHEN POWERSWITCH TURNS OFFInsert a tapering driver into the aperture of the unit bottom, and turn inthe direction of arrow (to OUT direction).*To close the disc tray, turn the driver in the reverse direction(to IN direction).Tray5Stopper washer (5)NOTE FOR MAIN GAER INSTALLATION4Inst

21、all the MAIN GEARas show in the drawing.2Slide the SET LEVER to thearrow B direction.B1Set the mark ofROTARY ENCODER.A3Rotate the GEAR (U/D)to the arrow Adirection. 5 SECTION 1GENERALIdentifying the PartsFront Panel1POWER switch2CONTINUE button3SHUFFLE button4PROGRAM button5CHECK button6CLEAR button

22、7REPEAT button8DISC 1-5 buttons9Display window0Disc tray!=/+ (AMS*) buttons!0/) (manual search) buttons!” (play) button!P (pause) button!p (stop) button!6 OPEN/CLOSE button!DISC SKIP button!EX-CHANGE button!DISC CHECK button (CDP-CE305/CE405 only)Remote sensorPEAK SEARCH button (CDP-CE305/CE405 only

23、)EDIT/TIME FADE button (CDP-CE305/CE405 only)10 (over 10) buttonNumeric (1-10) buttonsTIME buttonFADER buttonMUSIC SCAN button12 34567 890!* AMS is the abbreviation for Automatic Music Sensor. 6 SECTION 2DISASSEMBLYNote : Follow the disassembly procedure in the numerical order given.2-1. CASE, BOTTO

24、M PLATE AND FRONT PANEL1Two screws(M38)9Flat type wire (9 core)(MAIN board, to CN402)!Two screws(BVTT38)!Front panel4Case3Two screws(BV38)2Two screws(M38)8Flat type wire (35 core)(MAIN board, to CN402)7Bottom plate5Four screws(BVTP310)2-2. BACK PANEL AND DISC TABLE!Three screws(BVTP310)!Disc table (

25、B)!Disc table (A)!Screw(BVTP38)!Bracket(guideB1)9Screw(BVTP38)0Bracket (guide F1)8Bracket (guide F1)7Screw (BVTP38)5Screw(BVTP38)6Bracket (guide B1)4Flat type wire (6 core)(MAIN board, to CN404)1Connector2Five screws(BVTP310)3Back panel!Screw(PTPWH312)6Three screws(BVTT38) 7 2-3. OPTICAL PICK-UP BLO

26、CK ASSEMBLY2-4. BRACKET (GEAR) ASSEMBLY2Screw(PTPWH312)4Two screws(PTPWH2.66)8Optical pick-up block assembly1Flat type wire (16 core)(BD board, to CN101)3Two screws(PTPWH2.66)6Compression spring (BU)7Compression spring (BU)5Holder (BU)1Stopper washer (5)2Gear (REV)7Stopper washer (5)8Gear (U/D)9Five

27、 screws(BVTP38)0Bracket (GEAR)assembly3Stopper washer (5)4Gear (MAIN)5Screw(BVTP38)6Rotary encoderNote : As for the installation of the main gear, refer to “Note for MAINGAER installation” on page 4. 8 Note :1.CD Block is basically designed to operate without adjustment.Therefore, check each item in

28、 order given.2.Use YEDS-18 disc (3-702-101-01) unless otherwise indicated.3.Use an oscilloscope with more than 10M impedance.4.Clean the object lens using an applicator with neutral detergent whenthe signal level is low than specified value with the followingchecks.S Curve CheckProcedure :1.Connect

29、oscilloscope to test point TP (FE) on BD board.2.Connect between test point TP (FEI) and TP (VC) by leadwire.3.Turn Power switch on.4.Put disc (YEDS-18) in and turn Power switch on again andactuate the focus search. (actuate the focus search when disctable is moving in and out.)5.Check if the oscill

30、oscope waveform (S-curve) is symmetricalbetween A and B. And confirm peak to peak level within 31Vp-p.S-curve waveform6.After check, remove the lead wire connected in step 2.Note : Try to measure several times to make sure than the ratio of A: B or B : A is more than 10 : 7. Take sweep time as long

31、as possible and light up thebrightness to obtain best waveform.RF Level CheckProcedure :1.Connect oscilloscope to test point TP (RF) on BD board.2.Turned Power switch on.3.Put disc (YEDS-18) in to play the number five track.4.Confirm that oscilloscope waveform is clear and check if RFsignal level is

32、 correct or not.BD boardTP (FE)TP (VC)oscilloscopesymmetryABwithin 3 1 Vp-pBD boardTP (RF)TP (VC)oscilloscopeNote :A clear RF signal waveform means that the shape “ ” can beclearly distinguished at the center of the waveform.RF signal waveformE-F Balance CheckProcedure :1.Connect test point TP (ADJ)

33、 to ground with a lead wire.2.Connect oscilloscpe to test point TP (TE) on BD board.3.Turned Power switch on.4.Put disc (YEDS-18) in to play the number five track.5.Press the “3” button. (The tracking servo and the sleddingservo are turned OFF.)6.Check the level B of the oscilliscopes waveform and t

34、he A(DC voltage) of the center of the Traverse waveform.Confirm the following :A/B 100 = less than 22%Traverse waveform7.Press the “8” button. (The tracking servo and sledding servoare turned ON.) Confirm the C (DC voltage) is almost equalto the A (DC voltage) is step 6.Traverse waveform8.Disconnect

35、 the lead wire of TP (ADJ) connected in step 1.VOLT/DIV : 200mVTIME/DIV : 500nslevel :1.2Vp-p+0.250.20BD boardTP (TE)TP (VC)oscilloscope0VCenter of the waveformBlevel : 1.3 0.6 Vp-pA (DC voltage)0VC (DCvoltage)Tracking servoSledding servoONTracking servoSledding servoOFFSECTION 3ELECTRICAL BLOCK CHE

36、CKING 9 RF PLL Free-run Frequency CheckProcedure :1.Connect frequency counter to test point (PLCK) with leadwire.2.Turned Power switch on.3.Put the disc (YEDS-18) in to play the number five track.Confirm that reading on frequency counter is 4.3218MHz.Adjustment Location : BD BOARD Conductor Side (PL

37、CK)(RF)(VC)(TE)(FE)(FEI)IC1031201110IC101 MAIN BOARD Conductor Side 404125241806564IC401TP2(ADJ)frequency counterBD boardTP (PLCK) 10 4-1. CIRCUIT BOARDS LOCATIONSECTION 4DIAGRAMSBD BOARDSENSOR BOARDMAIN BOARDDISPLAY BOARD10 KEY BOARDLOADING BOARDTABLE MOTOR BOARD 24 4-7. IC PIN FUNCTIONS IC101 DIGI

38、TAL SIGNAL PROCESSOR (CXD2545Q)Pin NameSRONSRDRSFONTFDRTRONTRDRTFONFFDRFRONFRDRFFONVCOOVCOITESTDVssTES2TES3PDOVPCOVCKIAVD2IGENAVS2ADIORFCRFDCTESEFEVCFILOFILIPCOCLTVAVS1RFACBIASASYIASYOAVD1Pin No.12345678910111213141516171819202122232425262728293031323334353637383940I/OOOOOOOOOOOOOIIIIOOIIIOIIIIIOIOI

39、IIIOFunctionSled drive output (Not used)Sled drive outputSled drive output (Not used)Tracking drive outputTracking drive output (Not used)Tracking drive outputTracking drive output (Not used)Focus drive outputFocus drive output (Not used)Focus drive outputFocus drive output (Not used)VCO output for

40、analog EFM PLL (Not used)VCO output for analog EFM PLL (GND)TEST pin connected normally to GNDDigital GNDTEST pin connected normally to GNDTEST pin connected normally to GNDCharge-pump output for analog EFM PLL (Not used)Charge-pump output for variable pitch PLL (Not used)Clock input from variable p

41、itch external VCO (GND)Analog power supplyPower supply pin for operational amplifiersAnalog GND(Not used)(Not used)RF signal inputTracking error signal inputSled error signal inputFocus error signal inputCenter voltage input pinFilter output for master PLLFilter input for master PLLCharge-pump outpu

42、t for master PLLControl voltage input for master VCOAnalog GNDEFM signal inputAsymmetry circuit constant current inputAsymmetry comparate voltage inputEFM full swing outputAnalog power supply 25 Pin NameDVDDASYEPSSLWDCKLRCKDATABCLK64DATA64BCLK64LRCKGTOPXUGFXPLCKGFSPFCKC2POXRAOFMNT3MNT2MNT1MNT0XTAIXT

43、AOXTSLDVssFSTIFSTOFSOFC16MMD2DOUTEMPHWFCKSCORSBSOEXCKSUBQSQCKMUTESENSPin No.41424344454647484950515253545556575859606162636465666768697071727374757677787980I/OIIOOOOOOOOOOOOOOOOOOIOIIOOOIOOOOOIOIIOFunctionDigital power supplyAsymmetry circuit ON/OFFAudio data output mode selection input48-bit slot D

44、/A interface. Word clock.48-bit slot D/A interface. LR clock.DA 16 output when PSSL=1.48-bit slot serial data when PSSL=0DA 15 output when PSSL=1.48-bit slot data when PSSL=0DA 14 output when PSSL=1.64-bit slot data when PSSL=0 (Not used)DA 13 output when PSSL=1.64-bit slot data when PSSL=0 (Not use

45、d)DA 12 output when PSSL=1.64-bit slot data when PSSL=0 (Not used)DA 11 output when PSSL=1.GTOP output when PSSL=0 (Not used)DA 10 output when PSSL=1.XUGF output when PSSL=0 (Not used)DA 09 output when PSSL=1.XPLCK output when PSSL=0DA 08 output when PSSL=1.GFS output when PSSL=0DA 07 output when PS

46、SL=1.RFCK output when PSSL=0DA 06 output when PSSL=1.C2PO output when PSSL=0 (Not used)DA 05 output when PSSL=1.XRA0F output when PSSL=0DA 04 output when PSSL=1.MNT3 output when PSSL=0DA 03 output when PSSL=1.MNT2 output when PSSL=0DA 02 output when PSSL=1.MNT1 output when PSSL=0DA 01 output when PS

47、SL=1.MNT0 output when PSSL=0Xtal oscillator circuit inputXtal oscillator circuit output (Not used)Xtal selection input pin (GND)Digital GND2/3 divider output of pins 62, 632/3 divider output of pins 62, 63(Not used)16.9344 MHz output (Not used)Digital-out ON/OFF control pin (+5V)Digital-out output p

48、inPlayback disc output in emphasis mode (Not used)WFCK outputSub-code sync outputSub-P through Sub-W serial output (Not used)Clock input for SBS0 read-out (GND)Sub-Q 80-bit outputMuting selection pinSENS outputSystem reset 26 Pin NameXRSTDIRCSCLKDFSWATSKDATAXLATCLOKCOUTDVDDMIRRDFCTFOKFSWMONNDPMDSLOC

49、KSSTPSFDRPin No.81828384858687888990919293949596979899100I/OIIIIIIIIOOOOOOOOOIOFunctionSystem resetUsed in 1-track jump mode (+5v)SENS serial data read-out clockDFCT selection pin (GND)Input pin for anti-shock (GND)Serial data input, supplied from CPULatch input, supplied from CPUSerial data transfe

50、r clock input, supplied from CPUNumbers of track counted signal output (Not used)Digital power supplyMirror signal outputDefect signal outputFocus OK outputOutput to select spindle motor output filter (Not used)Output to control ON/OFF of spindle motor (Not used)Output to control spindle motor servo