Sony-CDPXA555ES-cd-sm 维修电路原理图.pdf

MICROFILMSERVICE MANUALCOMPACT DISC PLAYERAEP ModelE ModelSPECIFICATIONSCDP-XA555ESPhoto: BlackModel Name Using Similar MechanismCDP-XA50ESCD Mechanism TypeCDM32EB-12C (BLACK)CDM32EN-12C (GOLD)Base Unit TypeBU-12COptical Pick-up TypeKSS-273B/J1N Continued on next page RadioFans.CN 收音机爱 好者资料库2TABLE OF CONTENTS1.SERVICING NOTES.32.GENERAL.63.DISASSEMBLY.84.TEST MODE. 115.ELECTRICAL ADJUSTMENTS. 136.DIAGRAMS6-1.Block Diagram SERVO Section . 156-2.Block Diagram MAIN Section . 166-3.Notes for Printed Wiring Boardand Schematic Diagram . 176-4.Printed Wiring Board SERVO Board (Component Side) . 186-5.Printed Wiring Board SERVO Board (Conductor Side) . 196-6.Schematic Diagram SERVO Board (1/2) . 206-7.Schematic Diagram SERVO Board (2/2) . 216-8.Printed Wiring Boards BSL/FL RELAY/FLEX RELAY/LOADING MOTOR/LOADING SW Boards . 226-9.Schematic Diagram BSL/FL RELAY/FLEX RELAY/LOADING MOTOR/LOADING SW Boards . 236-10. Printed Wiring Board AUDIO Board (Component Side) . 246-11. Printed Wiring Board AUDIO Board (Conductor Side) . 256-12. Schematic Diagram AUDIO Board (1/2) . 266-13. Schematic Diagram AUDIO Board (2/2) . 276-14. Printed Wiring Boards COAX OUT/D/O SW/LINE/OPT OUT/VR Boards . 286-15. Schematic Diagram COAX OUT/D/O SW/LINE/OPT OUT/VR Boards . 296-16. Printed Wiring Boards KEY-L/KEY-R Boards . 306-17. Schematic Diagram KEY-L/KEY-R Boards . 316-18. Printed Wiring Board DISPLAY Board . 326-19. Schematic Diagram DISPLAY Board . 336-20. Printed Wiring Boards AC/POWER (Component Side)/SW Boards . 346-21. Printed Wiring Board POWER Board (Conductor Side) . 356-22. Schematic Diagram AC/POWER/SW Boards . 366-23. IC Pin Function Description . 427.EXPLODED VIEWS. 488.ELECTRICAL PARTS LIST. 55SAFETY-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.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.CAUTIONUse 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.Laser component in this product is capable of emitting radiationexceeding the limit for Class 1.The following caution label is located inside the unit.RadioFans.CN 收音机爱 好者资料库3SECTION 1SERVICING NOTESThe 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 UNIT4-221-269-AEP Model: 0 s?Singapore Model: 1 sMODEL IDENTIFICATION BACK PANEL HOW TO PLAY CD WITH THE DISC TRAYOPENEDTo play a CD by this method, the screws that secure the SERVOboard to the chassis must be removed in advance.Procedure:1.Press!button to turn the power ON.2.Set a CD on the disc tray.3.With the disc tray opened, connect pin 1 and pin 2 of CN272on the LOADING MOTOR board using tweezers, etc.4.As the disc starts to move toward direction A, intercept thesensor in B section with your finger immediately. (See “HOWTO OPERATE THE SET WITHOUT USING STABILIZER”on page 5)5.You can release your hand when TOC is read.6.Hence, the operation equivalent to normal operation can beperformed.short hereAB4DISC PULLEY INSTALLING POSITIONNote: The shaft on which the disc pulley is installed has a groove to determine the position (height).Install the disc pulley so that a setscrew can settle in this groove.set screw(M2.6 4)set screwgroovegroovedisc pulleydisc pulleyHOW TO OPEN DISC TRAY WHEN POWER IS OFFInsert a flat-blade screwdriver into a hole at the bottom of the set, and rotate the pulley in the arrow direction to open the disc tray.INdisc trayflat-bladescrewdriverOUT5SERVICE POSITION OF SERVO BOARDIn servicing the SERVO board, erect the board as shown below.In this case, the CN201 and CN202 connectors are disconnected respectively, and accordingly the buttons on the front panel do notfunction.Therefore, use the Remote Commander for fundamental operations such as PLAY and STOP.Also, in performing the service under this condition, the stabilizer is not detected, so refer to “How to Operate the Set without UsingStabilizer”.disconnect CN201disconnect CN202SERVO boardHOW TO OPERATE THE SET WITHOUT USING STABILIZERAs this set detects the stabilizer, if servicing the set in other than normal operating way, disable the stabilizer detecting function by thefollowing method.The stabilizer is detected before TOC is read, and after that, this function does not operate.That is, the stabilizer detection is executed after power on or immediately after disc loading, and you can release your finger after the discwas recognized.Intercept the D202 on SERVO board with your finger.6SECTION 2GENERAL123450qaqs7689qkqlqdqfqgqhqjw;wa1! (power) switch2PLAY MODE button3REPEAT button4TIME button5Fluorescent indicator tube display6m/M (forward/backward) button7CHECK button8CLEAR button9FILTER button and indicator0AMS controlqax (stop) buttonX (pause) button and indicatorN (play) button and indicatorA OPEN/CLOSE buttonqsDisc tableqdERASE buttonqfFILE buttonqgEDIT/TIME FADE buttonqhLINE OUT/PHONE LEVEL volumeqjPHONES jackqkANALOG OUT (FIXED/VARIABLE) connectorqlDIGITAL OUT ON/OFF switchw;DIGITAL OUT (OPTICAL) connectorwaDIGITAL OUT (COAXIAL) connectorLOCATION OF CONTROLSFront viewRear view7Remote commander123456789102570qaqsqdqfqgwg614ql93qk8wfwswaw;qhqjwd1SHUFFLE button2CONTINUE button3C.INDEX button4A.SPACE button5TIME button6Number button710 button8FILE button9ERASE button0REPEAT buttonqaH (play) buttonqsX (pause) buttonqd./ (AMS) buttonqfm/M (forward/backward) buttonqgINDEX /. buttonqhPROGRAM buttonqjPEAK SEARCH buttonqkDIGITAL FILTER buttonqlDISPLAY MODE buttonw;CLEAR buttonwaCHECK buttonwsFADER buttonwdA T t B buttonwfx (stop) buttonwgLINE OUT LEVEL button8LOADING PANELNote: Follow the disassembly procedure in the numerical order given.SECTION 3DISASSEMBLYINOUT2tray BOTTOM VIEW 1Open the tray turningthe tapering screw driverto the arrow direction.5loading panel4two screws(KTP3 8)6connector (CN292)3two hexagon holebolt (LID)9FRONT PANELPANEL (L) , (M) , (R)2bottom plate1five screws(BVTT3 8)1five screws(BVTT3 8)qffour screws(BVTT3 8)6screw(3 8)6screw(3 8)5spacer3screw(BVTT3 6)0connector(CN202)4harness8connector(CN351)qaconnector(CN901)qsconnector(CN201)qdconnector(CN203)9connector(CN461)7bracket5spacer7bracketqgfront panel7panel (L)6two claws5panel (MD)3panel (R)4three claws1three screws(BVTT3 8)1three screws(BVTT3 8)2two claws10MECHANISM DECK (CDM32BN-12C)0mechanism deck9two screws(BVTP3 6)9two screws(BVTP3 6)1connector(CN251)2connector (CN91)3connector (CN105)4connector (CN104)6connector (CN953)7connector (CN935)8connector (CN914)5connector (CN103)11SECTION 4TEST MODE SERVO board (Conductor Side) IC101TP (AFJ)IC204CN101FLUORESCENT DISPLAY TUBE FULL ON ANDKEY CHECK MODEProcedure:1.Connect TP(AFJ) and GND on the SERVO board with a leadwire.2.Press!button to turn the power ON.3.The fluorescent display tube will fully turn on.4.Pressing any button causes the set to enter the Key Check mode.In the Key Check mode, each time a button is pressed, nu-meric value displayed on the tube is counted up. (However,once the button is pressed, the value is not counted up even ifpressing the same button again.) Also, while a button is pressed,its button number is displayed.5.To exit from the Test mode, press!button to turn the powerOFF.Count-up display7-segment displayButton number displayButton NameButton Number Display(Display while a button is pressed)PLAY MODEPartial onREPEATPartial onTIME000EDIT/TIME FADE12FILE13ERASE00CHECKPartial onCLEARPartial onFILTER20mPartial onMPartial onA OPEN/CLOSEFull onNXx888PUSH ENTER23SIDE-ACUSTOM INDEXFADEC.SECDELETESIDE-B (TIME)(1)MINC.FILEINDEX135791113152468101214N1B(JUST)PROGRAMINDEXPEAKSHUFFLEREPEATA-AUTOSPACEEDITSTEP _Partial on andnearby LED onPartial on andnearby LED on12AGING MODEThis 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 display tube. If no failure occursThe aging operation continues repeatedly.Note: To enter the Aging mode, the Aging Remote Commander (J-2501-123-A) is required.1.Press!button to turn the power ON.2.Set a disc on the tray.3.Press AGING START button on the Aging Remote Commander.4.The aging starts, and the fluorescent display tube will display the following.5.At the completion of aging, press!button.Code No.StatusDisplay inDisplay innormal operationcase of failure0Load INA-0Err-01Access to TOCA-1Err-12Access to last trackA-2Err-23Play of last track (3sec)Counter displayErr-34Access to first trackA-4Err-45Play of first track (3sec)Counter displayErr-56Load OUTA-6Err-613SECTION 5ELECTRICAL ADJUSTMENTSNotes:1. CD block basically constructed to operate without adjustment. There-fore, check each item in order given.2. Use YEDS-18 disc (Part No.: 3-702-101-01) unless otherwise indicated.3. Use the oscilloscope with more than 10 M impedance.4. Clean an object lens by an applicator with neutral detergent when thesignal level is low than specified value with the following checks.S-Curve CheckNote: Operate with remote commander.Connection:Procedure:1.Connect the oscilloscope to TP (FE) and TP (VC) on SERVOboard.2.Connect the TP (ADJ) and GND with lead wire.3.Turned power switch(!button) on.4.Put disc (YEDS-18) in and press the N button. Press the qabutton on remote commander. (actuate the focus search)5.Confirm that the oscilloscope waveform (S-curve) is symmetri-cal between A and B. And confirm peak to peak level within3.0 1.0 Vp-p.S-curve waveform6.After check, remove the lead wire connected in step 2.Note: Try to measure several times to make sure that the ratio of A : Bor B : A is more than 10 : 7. Take sweep time as long as possible and light up the brightnessto obtain best waveform.RF Level CheckConnection:Procedure:1.Connect the oscilloscope to TP (RFO) and TP (VC) on SERVOboard.2.Turned power switch (!button) on.3.Put disc (YEDS-18) in and press the N button.4.Confirm that the oscilloscope waveform is clear and check RFsignal level is correct or not.Note: Clear RF signal waveform means that the shape “” can be clearlydistinguished at the center of the waveform.+SERVO boardTP (FE)TP (VC)oscilloscopeABsymmetrywithin 3.0 1.0 Vp-p+SERVO boardTP (RFO)TP (VC)oscilloscope(AC range)RF signal waveformWhen observing the eye pattern, set the oscilloscope for AC rangeand raise vertical sensitivity.E-F Balance (Traverse) Check(Operate with remote commander)Connection:Procedure:1.Connect the TP (ADJ) to ground with lead wire.2.Connect the oscilloscope to TP (TE) and TP (VC) on SERVOboard.3.Turned power switch (!button) on.4.Put disc (YEDS-18) in and press the N button.5.Press the 3 button on remote commander. (Tracking servoon)6.Confirm that the oscilloscope waveform is symmetrical on thetop and bottom in relation to 0 Vdc, and check this level.Traverse waveform7.After check, remove the lead wire connected in step 1.E-F Balance (Traverse) Check(No remote commander)Connection:Procedure:1.Connect the TP (TEI: IC101 pin wj) to TP (VC) with leadwire.2.Connect the oscilloscope to TP (TE) and TP (VC) on SERVOboard.3.Turned power switch (!button) on.4.Put disc (YEDS-18) in and press the N button.VOLT/DIV: 200 mVTIME/DIV: 500 ns(with the 10 : 1 prove in use)level: 1.2 Vp-p+ 0.25 0.20+SERVO boardTP (TE)TP (VC)oscilloscope(DC range)ABlevel: 1.5 Vp-p+ 1.5 0.5+SERVO boardTP (TE)TP (VC)oscilloscope(DC range)145.Confirm that the oscilloscope waveform is symmetrical on thetop and bottom in relation to 0 Vdc, and check this level.Traverse waveform6.After check, remove the lead wire connected in step 1.Skew AdjustmentNote: Do not perform the skew adjustment when not using attached sta-bilizer to a set.Connection:Procedure:1.Remove the bottom plate, put one third of the unit out fromthe desk.2.Connect the osiclloscope to TP (RFO) and TP (VC) on SERVOboard.3.Turned power switch (!button) on.4.Put disc (YEDS-18) in and press the N button.5.Adjust to be clear the waveform of the oscilloscope turningthe adjsutment screw with a 3 screwdriver.Note: Clear RF signal waveform means that the shap “”can be clearlydistinguished at the center of the waveform.6.After the adjustment, lock the adjustment screw.RF signal waveformABlevel: 1.5 Vp-p+ 1.5 0.5+oscilloscope(AC range)SERVO boardTP (RFO)TP (VC)VOLT/DIV: 200 mVTIME/DIV: 500 ns(with the 10 : 1 prove in use)level: 1.2 Vp-p+ 0.25 0.20adjustment screw3 screwdriver SERVO BOARD (Conductor Side) IC101TP (VC)TP (TEI)TP (RFO)TP (AFJ)TP (ADJ)IC204CN101TP (TE)TP (FE)1515DETECTOREFACBDTRACKINGERRORAMPAUTOMATICPOWERCONTROLRFAMPFETELDONRFOFOCUSERRORAMPLDPDINTEGRATORQ101ASYMMETRYCORRECTIONMUXEFMDEMODULATORCLOCKGENERATORREGISTERD/ADATAPROCESSORSUBCODEQPROCESSORCPUINTERFACESERVOAUTOSEQUENCERSUBCODEP-WPROCESSOR32KRAMADDRESSGENERATORPEAKDETECTORDIGITALOUTSERIAL/PARALLELPROCESSORPRIORITYENCODERSYNCPROTECTORTIMINGGENERATOR 1CLV SERVOPROCESSORERRORCORRECTORTIMINGGENERATOR 2SERVOINTERFACEDIGITALPLLRESET SWITCHQ151,152MUTING CONTROLSWITCHQ153,154CONSTANT CURRENTQ172CONSTANT CURRENTQ171ASY1RFACDATA BLISXTALDOUTSUBQSQCKSCLKDATALRCKBCLKSCORDATAXLATCLKSENSFOKDFCTMIRRXRSTCLV SERVOPROCESSORSERVO DSPIB TIMSOVERSAMPLINGFILTERS STOPGFSMUTEFOCUSSERVOTRACKINGSERVOSLEDSERVOPWMGENERATORTRACKINGPWMGENERATORFOCUSPWMGENERATORSLEDPWMGENERATORM IRRDFCTFOKDETECTORA/DCONVERTERRFDCFOKDFCTMIRRTESEEFTRDRTRDRFFDRFRDRSRDRSFDRLOCKMDP46810210098962627282979 54999392918187888086744678837745477162383639MM21(SLED)(FOCUS)(TRACKING)T+TF+F1716272613123910451520192324MUTEFOCUS/TRACKING COIL DRIVESLED MOTOR DRIVEIC102124155MUTESPINDLE MOTOR DRIVEIC104L11L12CONSTANT CURRENTQ182CONSTANT CURRENTQ181124155MUTESPINDLE MOTOR DRIVEIC105L14L13HHH12H11D+5VQ190S21(LIMIT OUT)S22(LIMIT IN)+5VL1113BSL(SPINDLE)+5VDIGITAL SIGNAL PROCESSOR,FOCUS/TRACKING/SLEDSER