Sony-CDPXE300-cd-sm 维修电路原理图.pdf

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1、 CDP-XE200/XE300SERVICE MANUALCanadian ModelAEP ModelUK ModelAustralian ModelCDP-XE200/XE300E ModelChinese ModelCDP-XE200Photo: CDP-XE300Model Name Using Similar MechanismCDP-XE500CD Mechanism TypeCDM14-5BD20Base Unit NameBU-5BD20SPECIFICATIONSMICROFILMCOMPACT DISC PLAYERRadioFans.CN 收音机爱 好者资料库 2 Th

2、e laser component in this productis capable of emitting radiationexceeding the limit for Class 1.The following caution label is located inside of the unit.To Exposed MetalParts on Set0.15F1.5kACvoltmeter(0.75V)Earth GroundFig. A. Using an AC voltmeter to check AC leakage.SAFETY CHECK-OUTAfter correc

3、ting the original service problem, perform the followingsafety 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 asdescribed below.LEAKAGE TESTThe AC leakage from any expo

4、sed metal part to earth ground andfrom all exposed metal parts to any exposed metal part having a re-turn to chassis, must not exceed 0.5 mA (500 microampers).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

5、 manufacturers instructions to use theseinstruments.2. A battery-operated AC milliammeter. The Data Precision 245 digi-tal multimeter is suitable for this job.3. Measuring the voltage drop across a resistor by means of a VOMor battery-operated AC voltmeter. The “limit” indication is 0.75V, so analog

6、 meters must have an accurate low-voltage scale. TheSimpson 250 and Sanwa SH-63Trd are examples of a passive VOMthat is suitable. Nearly all battery operated digital multimeters thathave a 2V AC range are suitable. (See Fig. A)This appliance is classifiedas a CLASS 1 LASERproduct.The CLASS 1 LASERPR

7、ODUCT MARKING islocated on the rear exterior.CAUTIONUse of controls or adjustments or performance of proce-dures other than those specified herein may result in haz-ardous radiation exposure.Notes on Chip Component Replacement Never reuse a disconnected chip component. Notice that the minus side of

8、a tantalum capacitor may be dam-aged by heat.MODEL IDENTIFICATION Back Panel CDP-XE200 :Canadian Model: 4-978-388-4Australian Model: 4-978-388-5E Model: 4-978-388-9Chinese Model: 4-979-971-0UK Model: 4-979-971-1AEP, German, East European Model: 4-979-971-2CDP-XE300 :AEP, German, East European Model:

9、 4-978-388-2UK Model: 4-978-388-3Australian Model: 4-978-388-6Canadian Model: 4-978-388-8RadioFans.CN 收音机爱 好者资料库 3 ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT!LES COMPOSANTS IDENTIFIS PAR UNE MARQUE ! SUR LESDIAGRAMMES SCHMATIQUES ET LA LISTE DES PICES SONTCRITIQUES POUR LA SCURIT DE FONCTIONNEME

10、NT. NEREMPLACER CES COMPOSANTS QUE PAR DES PICES SONYDONT LES NUMROS SONT DONNS DANS CE MANUEL OUDANS LES SUPPLMENTS PUBLIS PAR SONY.NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK ORBASE UNITThe laser diode in the optical pick-up block may suffer electrostaticbreakdown because of the potential differen

11、ce generated by thecharged electrostatic load, etc. on clothing and the human body.During repair, pay attention to electrostatic breakdown and also usethe procedure in the printed matter which is included in the repairparts.The flexible board is easily damaged and should be handled withcare.NOTES ON

12、 LASER DIODE EMISSION CHECKThe laser beam on this model is concentrated so as to be focused onthe disc reflective surface by the objective lens in the optical pick-upblock. Therefore, when checking the laser diode emission, observefrom more than 30 cm away from the objective lens.LASER DIODE AND FOC

13、US SEARCH OPERATION CHECK1. Make POWER switch on with no disc inserted and disc tableclosed.2. Confirm that the following operation is performed whileobserving the objective lens.SAFETY-RELATED COMPONENT WARNING!COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINEWITH MARK ! ON THE SCHEMATIC DIAGRAMS AND

14、IN THEPARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACETHESE COMPONENTS WITH SONY PARTS WHOSE PARTNUMBERS APPEAR AS SHOWN IN THIS MANUAL OR INSUPPLEMENTS PUBLISHED BY SONY.TABLE OF CONTENTS1. GENERAL Identifying the Parts . 4 Playing a CD. 52. DISASSEMBLY2-1. Front Panel . 62-2. Base Unit Block . 6

15、3. ELECTRICAL BLOCK CHECKING. 74. DIAGRAMS4-1. IC Pin Functions. 94-2. Printed Wiring Board BD Section . 134-3. Schematic Diagram BD Section . 154-4. Printed Wiring Boards Main Section . 174-5. Schematic Diagram Main Section . 195. EXPLODED VIEWS5-1. Case Section . 265-2. Back Panel Section. 275-3.

16、CD Mechanism Section. 285-4. Base Unit Section. 296. ELECTRICAL PARTS LIST. 30 4 SECTION 1GENERALIDENTIFYING THE PARTSRM-D420 (CDP-XE300 only)Front Panel/RemoteCommander1 POWER switch2 Disc tray3 OPEN/CLOSE button4 0/) (manual search) button5 CHECK (program check) button6 CLEAR (program clear) butto

17、n7 ENTER button8 AMS (AMS*) control9 p (Stop) button0 P (Pause) button! (Play) button! Display! TIME button! REPEAT button! PLAY MODE button! Play Mode buttonsCONTINUE buttonSHUFFLE buttonPROGRAM button! Numeric buttons! 10 (over 10) button! TIME button =/+ (AMS*) button FADER button*AMS is the abbr

18、eviation of Automatic Music Sensor.12345 67 8! !0 9!46590 5 6 SECTION 2DISASSEMBLYNote : Follow the disassembly procedure in the numerical order given.2-1. FRONT PANEL When removing the front panel assembly on electric power failure,first open the loading block by turning cam with a screwdriver assh

19、own in the figure, next pull out the loading block with hand, andremove the loading panel as shown in the figure, then remove thefront panel assembly.3 Remove loading panel in the arrow direction2-2. BASE UNIT BLOCK1 Turn the cam to direction of arrow (Counter clockwise) by minus screw driver.2 Take

20、 off the disc table.3 Remove the yoke bracket.4 Remove the MD (BU-5BD20) to the direction of arrow.1Turn in the direction of the arrow.2 Pull out disc table.bottom of chassis1 cam2 disc table4 BU-5BD203 yoke bracket 7 SECTION 3ELECTRICAL BLOCK CHECKINGNote :1. CD Block is basically designed to opera

21、te without adjustment. Therefore, 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 10M impedance.4. Clean the objective lens using an applicator with neutral detergent when the signal level is low than specified value

22、with the following checks.S Curve CheckProcedure :1.Connect oscilloscope to test point TP (FE) on BD board.2.Connect between test point TP (FEI) and TP (VC) by lead wire.3.Turn Power switch on.4.Put disc (YEDS-18) in and turn Power switch on again and actuatethe focus search. (Actuate the focus sear

23、ch when disc table is movingin and out.)5. Check if the oscilloscope waveform (S-curve) is symmetricalbetween A and B. And confirm peak to peak level within 31 Vp-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 rati

24、o ofA : B or B : A is more than 10 : 7.Set sweep time as long as possible and set the brightness toobtain best waveform.RF Level CheckProcedure :1. Connect oscilloscope to test point TP (RF) on BD board.2. Turn Power switch on.3.Put disc (YEDS-18) in and playback.4.Confirm that oscilloscope waveform

25、 is clear and check if RFsignal level is correct or not.Note :A clear RF signal waveform means that the shape “ ” can beclearly distinguished at the center of the waveform.RF signal waveformE-F Balance (1 Track Jump) CheckProcedure :1.Connect oscilloscope to test point TP (TE) on BD board .2.Turn Po

26、wer switch on.3.Put disc (YEDS-18) in to play the number five track.4.Press the “P (pause)” button. (Becomes the 1 track jump mode.)5.Check the level B of the oscilloscopes waveform and the A (DCvoltage) of the following :A/B100 = less than 20%.1 track jump waveformRF PLL Free-run Frequency CheckPro

27、cedure :1. Connect frequency counter to test point (PLCK) with lead wire.2. Turn Power switch on.3. Confirm that reading on frequency counter is 4.3218MHz.BD boardoscilloscopeTP (FE)TP (VC)symmetrywithin 31 Vp-pABBD boardoscilloscopeTP (RF)TP (VC)VOLT/DIV : 200mVTIME/DIV : 500nSlevel : 1.2 +0.25 Vp-

28、p0.20BD boardTP (TE)TP (VC)oscilloscope(DC range)Center of the waveformA (DC voltage)level : 1.50.7Vp-psymmetryBfrequency counterMAIN boardTP (PLCK) 8 Adjustment Location : BD boardBD board (conductor side) (FE)(FEI)(RF)(TE)(VC)1201011IC103 (PLCK)IC101 9 SECTION 4DIAGRAMS4-1. IC PIN FUNCTIONS IC101

29、CXD2545Q (DIGITAL SERVO & DIGITAL SIGNAL PROCESSOR)Pin No.Pin NameI/OFunction1SRONOSled drive output (Not used.)2SRDROSled drive output3SFONOSled drive output (Not used.)4TFDROTracking drive output5TRONOTracking drive output (Not used.)6TRDROTracking drive output7TFONOTracking drive output (Not used

30、.)8FFDROFocus drive output9FRONOFocus drive output (Not used.)10FRDROFocus drive output11FFONOFocus drive output (Not used.)12VCOOOVCO output for analog EFM PLL. (Not used.)13VCOIIVCO input for analog EFM PLL. (Ground)14TESTITEST pin connected normally to Ground.15DVSSDigital Ground16TES2ITEST pin c

31、onnected normally to Ground.17TES3ITEST pin connected normally to Ground.18PDOOCharge-pump output for analog EFM PLL. (Not used.)19VPCOOCharge-pump output for variable pitch PLL. (Not used.)20VCKIIClock input from variable pitch external VCO. (Ground)21AVD2Analog power supply22IGENIPower supply pin

32、for operational amplifiers.23AVS2Analog Ground24ADIOI(Not used.)25RFCO(Not used.)26RFDCIRF signal input27TEITracking error signal input28SEISled error signal input29FEIFocus error signal input30VCICenter voltage input pin31FILOOFilter output for master PLL.32FILIIFilter input for master PLL.33PCOOCh

33、arge-pump output for master PLL.34CLTVIControl voltage input for master VCO.35AVS1Analog Ground36RFACIEFM signal input37BIASIAsymmetry circuit constant current input38ASYIIAsymmetry comparate voltage input39ASYOOEFM full swing output40AVD1Analog power supply41DVDDDigital power supply42ASYEIAsymmetry

34、 circuit ON/OFF43PSSLIAudio data output mode selection input. (Ground)44WDCKO48-bit slot D/A interface. Word clock45LRCKO48-bit slot D/A interface. LR clock46DATAODA 16 output when PSSL=1. 48-bit slot serial data when PSSL=0.47BCLKODA 15 output when PSSL=1. 48-bit slot data when PSSL=0. 10 Pin No.Pi

35、n NameI/OFunction4864DATAODA 14 output when PSSL=1. 64-bit slot data when PSSL=0. (Not used.)4964BCLKODA 13 output when PSSL=1. 64-bit slot data when PSSL=0. (Not used.)5064LRCKODA 12 output when PSSL=1. 64-bit slot data when PSSL=0. (Not used.)51GTOPODA 11 output when PSSL=1. GTOP output when PSSL=

36、0. (Not used.)52XUGFODA 10 output when PSSL=1. XUGF output when PSSL=0. (Not used.)53XPLCKODA 09 output when PSSL=1. XPLCK output when PSSL=0.54GFSODA 08 output when PSSL=1. GFS output when PSSL=0.55PFCKODA 07 output when PSSL=1. RFCK output when PSSL=0.56C2POODA 06 output when PSSL=1. C2PO output w

37、hen PSSL=0. (Not used.)57XRAOFODA 05 output when PSSL=1. XRAOF output when PSSL=0. (Not used.)58MNT3ODA 04 output when PSSL=1. MNT3 output when PSSL=0.59MNT2ODA 03 output when PSSL=1. MNT2 output when PSSL=0.60MNT1ODA 02 output when PSSL=1. MNT1 output when PSSL=0.61MNT0ODA 01 output when PSSL=1. MN

38、T0 output when PSSL=0.62XTAIIXtal oscillator circuit input63XTAOOXtal oscillator circuit output (Not used.)64XTSLIXtal selection input pin (Ground)65DVSSDigital Ground66FSTII2/3 divider input of pins 62 and 63.67FSTOO2/3 divider output of pins 62 and 63.68FSOFO(Not used.)69C16MO16.9344MHz output (No

39、t used.)70MD2IDigital-out ON/OFF control pin (+5V)71DOUTODigital-out output pin72EMPHOPlayback disc output in emphasis mode. (Not used.)73WFCKOWFCK output74SCOROSub-code sync output75SBSOOSub-P through Sub-W serial output (Not used.)76EXCKIClock input for SBSO read-out. (Ground)77SUBQOSub-Q 80-bit o

40、utput78SQCKIClock input for SQSO read-out.79MUTEIMuting selection pin80SENSOSENS output81XRSTISystem reset82DIRCIUsed in 1-track jump mode (+5V)83SCLKISENS serial data read-out clock84DFSWIDFCT selection pin (Ground)85ATSKIInput pin for anti-shock. (Ground)86DATAISerial data input, supplied from CPU

41、.87XLATILatch input, supplied from CPU.88CLOKISerial data transfer clock input, supplied from CPU.89COUTONumbers of track counted signal output. (Not used.)90DVDDDigital power supply91MIRROMirror signal output92DFCTODefect signal output93FOKOFocus OK output94FSWOOutput to select spindle motor output

42、 filter. (Not used.)95MONOOutput to control ON/OFF of spindle motor. (Not used.)96MDPOOutput to control spindle motor servo 11 Pin No.Pin NameI/OFunction97MDSOOutput to control spindle motor servo. (Not used.)98LOCKOGFS is sampled by 460Hz. H when GFS is H. (Not used.)99SSTPIInput signal to detect d

43、isc innermost track.100SFDROSled drive output 12 IC501 CXP82612-021Q (MASTER CONTROL)Pin No.Pin NameI/OFunction1TIMERConnected to +5V.2RMIAudio bus input3+5VConnected to +5V.4-6Not used. (Open)7PGMLOLatch signal output to digital filter (IC201).8CLKOSerial clock output9SENSEISENSE signal input10DATA

44、OSerial data output11SQCKORead out clock output for subcode Q data.12SUBQISubcode Q data input13Not used. (Open)14AMUTEOAnalog muting control signal output15LDONOOptical pick-up laser diode control output16XLTOSerial data latch signal output17Not used. (Open)18RV+Not used. (Open)19RV-Not used. (Open

45、)20LDOUTOLoading motor control signal output21LDINILoading motor control signal input22KEY0IKey input (S530)23KEY1IKey input (S520-S527)24KEY2IKey input (S501-S506)25KEY3Connected to +5V.26,27KEY4,KEY5IKey input (S531)28ADJ/AFADJADJ/AFJ test pin29IN/OUTSWILoading IN/OUT switch input30RSTIReset signa

46、l input31EXTALIClock input (4MHz)32XTALOClock output (4MHz)33VSSGround34-41Not used. (Open)42-62S1-S21OFL segment output63-701G-7GOFL grid output71VFDP(-30V)-30V pin for FL display tube.72VDD(+5V)+5V pin73+5V+5V pin74SEL1Connected to Ground.75-77Connected to Ground.78SCORIRead out timing signal inpu

47、t for subcode Q data.79,80SEL2,SEL3Connected to +5V. 26 NOTE: The mechanical parts with no referencenumber in the exploded views are not supplied. Items marked “*” are not stocked sincethey are seldom required for routine service.Some delay should be anticipatedwhen ordering these items. Abbreviatio

48、nCND : Canadian modelAUS : Australian modelCH: Chinese modelG: German modelEE: East European model -XX and -X mean standardized parts, sothey may have some difference from theoriginal one. Color Indication of Appearance PartsExample :KNOB, BALANCE (WHITE) . (RED)Parts Color Cabinets Color Hardware (

49、# mark) list and accessoriesand packing materials are given in thelast of this parts list.NN#1#1CDM14-5BD20155517181312111098732624Ref. No.Part No.DescriptionRemarkRef. No.Part No.DescriptionRemark* 14-977-585-11CASE (CND,E,AUS,CH)* 14-978-901-21CASE (408226) (AEP,UK,G,EE)23-363-099-01SCREW (CASE 3

50、TP2) (AEP,UK,G,EE)23-704-366-31SCREW (CASE) (M3X6) (CND,E,AUS,CH)34-956-370-02BAND, PLUG FIXED (UK,AUS)41-776-100-11WIRE (FLAT TYPE) (23 CORE)54-951-620-01SCREW (2.6X8), +BVTP61-776-099-11WIRE (FLAT TYPE) (21 CORE)* 7A-4673-760-A PANEL BOARD, COMPLETE* 81-658-840-11POWER SW BOARD94-977-589-01BUTTON