Sony-CDPX5000-cd-sm 维修电路原理图.pdf

1 Model Name Using Similar MechanismNEWBase Unit TypeBU-12AOptical Pick-up TypeKSS-274A/J-NSPECIFICATIONSMICROFILMCOMPACT DISC PLAYERCDP-X5000AEP ModelUK ModelE ModelChinese ModelSERVICE MANUALGeneralRadioFans.CN 收音机爱 好者资料库 2 SAFETY-RELATED COMPONENT WARNING !COMPONENTS IDENTIFIED BY MARK ! ORDOTTED LINE WITH MARK ! ON THE SCHEMATICDIAGRAMS AND IN THE PARTS LIST ARE CRITICALTO SAFE OPERATION. REPLACE THESE COMPO-NENTS WITH SONY PARTS WHOSE PART NUM-BERS APPEAR AS SHOWN IN THIS MANUAL OR INSUPPLEMENTS PUBLISHED BY SONY.This appliance is classified asa CLASS 1 LASER product.The CLASS 1 LASERPRODUCT MARKING islocated on the rear exterior.CAUTIONUse of controls or adjustments or performance of proceduresother than those specified herein may result in hazardous ra-diation exposure.This cautionlabel is locatedinside the unit.TABLE OF CONTENTS1. SERVICING NOTE. 32. GENERAL. 43. DISASSEMBLY3-1.Top Plate Assembly . 83-2.Front Panel Assembly. 83-3.Base Unit . 93-4.Back Panel . 94. ELECTRICAL BLOCK ADJUSTMENTS .105. DIAGRAMS5-1.Circuit Boards Location . 125-2.IC Pin Function IC101 Focus/Tracking/Sled/EFM Comparator (CXD2515AQ ). 13 IC201 System Control (CXP84124-043Q) . 165-3.Printed Wiring Board Servo, Panel Section . 205-4.Schematic Diagram Servo, Panel Section . 235-5.Schematic Diagram Audio, Power Section . 285-6.Printed Wiring Board Audio, Power Section . 316. EXPLODED VIEWS6-1.Top Plate Assembly Seciton . 376-2.Front Panel Section . 386-3.Back Panel Section . 396-4.Base Unit Section (BU-12A). 407. ELECTRICAL PARTS LIST .41The laser component in this productis capable of emitting radiationexceeding the limit for Class 1.Notes on chip component replacement Never reuse a disconnected chip component. Notice that the minus side of a tantalum capacitor may bedamaged by heat.Flexible Circuit Board Repairing Keep the temperature of soldering iron around 270Cduring 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.ADVARSEL : USYNLIG LASERSTRLING VED BNING NR SIKKERHEDSAFBRYDERE ER UDE AF FUNKTION. UNDG UDSAETTELSE FOR STRLING.CAUTION : INVISIBLE LASER RADIATION WHEN OPEN AND INTERLOCKS DEFEATED. AVOID EXPOSURE TO BEAM.VARO! : AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALT-TIINA NKYMTTMLLE LASERSTEILYLLE. L KATSO STEESEEN.VARNING : OSYNLIG LASERSTRLING NR DENNA DEL R PP-NAD OCH SPRREN R URKOPPLAD. BETRAKTA EJ STRLEN.VORSICHT : UNSICHTBARE LASERSTRAHLUNG, WENN ABDECKUNG GEFFNET UND SICHEREITSVERRIEGELUNG BERBRCKT. NICHT DEM STRAHL AUSSETZEN.ADVARSEL : USYNLIG LASERSTRLING NR DEKSEL PNES OG SIKKERHEDSLS BRYTES. UNNG EKSPONERING FOR STRLEN.RadioFans.CN 收音机爱 好者资料库 3 SECTION 1SERVICING NOTENOTES ON HANDLING THE OPTICAL PICK-UP BLOCKOR BASE UNITThe laser diode in the optical pick-up block may suffer electrostaticbreak-down because of the potential difference generated by thecharged electrostatic load, etc. on clothing and the human body.During repair, pay attention to electrostatic break-down 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 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 FOCUS SEARCH OPERATION CHECKCarry out the “S curve check” in “CD section adjustment” and checkthat the S curve waveform is output three times.WRITING OF FOCUS/TRACKING AUTO GAIN DATAGeneral CD palyers using digital servo ICs automatically adjust thefocus/tracking gain each time the disc is changed.In this unit, the gain of the standard disc (YEDS-18) is written in thenon-volatile memory (IC203:X24C01S) of the servo board so thatthe gain need not be re-adjusted when changing discs.Therefore, if the servo board, IC203 of the servo board, or opticalpick-up has been replaced, be sure to write the auto gain data.1. Connect TP (ADJ: Pin 3 of CN515) to GND (Ground), and turnON the POWER switch.2. Insert the test disc (YEDS-18). (The TOC data of the disc will beread.)This memorizes the auto gain data of the test disc.Note: If the disc is replaced without turning OFF the power, the auto gaindata of the last disc inserted will be memorized. If the POWER switch is turned ON without connecting TP (ADJ)to GND, the auto gain data will not be memorized when the disc isinserted, and the data memorized the last time will be taken as thefocus/tracking data.FLUORESCENT INDICATOR TUBE FULL LIGHTING MODE1. Connect TP (AFJ:Pin 2 of CN515) to GND (Ground), and turnON the POWER switch.2. The bridge check (check for short-circut between pins of the SRAM (IC202 of the servo board) is performed, and all the FLtubes light up if there is no bridge.3. When a key other than the p(stop) key is pressed, the correspond-ing FL tubes lights up.Each time the p(stop) key is pressed, all the FL tubes light up.SERVO BOARD Conductor Side CN514CN513CN515IC104IC105IC102IC202ADJ321AFJ 4 SECTION 2GENERALLOCATION OF PARTS AND CONTROLSUNIT OPERATION BLOCK45 6 7 8123REMOTE COMMANDER (RM-DX5000)REAR PANEL142356871 LINE OUT2 DIGITAL OUT OPTICAL switch3 DIGITAL OUT COAXIAL switch4 DIGITAL OUT BALANCED switch5 AC IN (230V)6 DIGITAL OUT BALANCED7 DIGITAL OUT COAXIAL8 DIGITAL OUT OPTICAL65431278!9!1 DISPLAY MODE button2 PLAY MODE buttonsCONTINUE buttonSHUFFLE buttonPROGRAM buttonC.INDEX button3 Number buttons (1-20)4 CLEAR button5 20 button6 CHECK button7 REPEAT button8 AB button9 (play) button! =/+ (*AMS) buttons! C/c(index search) buttons! TIME button! MUSIC SCAN button! SPACE button! FADER button! PEAK SEARCH button! ERASE button! FILE button! p (stop) button P (pause) button 0/) (fast forward/fast rewind) buttons 0/) SLOW buttons1 POWER switch2 Disc lid3 0/) (fast forward/fast rewind) buttons4 =/+ buttons (*AMS)This section is extracted frominstruction manual.5 (play) button/lamp6 P (pause)button/lamp7 p (stop)button8 Display window*AMS is the abbreviation of Automatic Music Sensor. 5 6 7 8 SECTION 3DISASSEMBLYNote : Follow the disassembly procedure in the numerical order given.3-1. TOP PLATE ASSEMBLY1Connectors (CN207, CN208: SERVO board)2Two bolts (M3)3Two bolts (M3)4Front panel assembly1Four ornamental screws2Top plate assembly3Connector(CN805: Display board)3-2. FRONT PANEL ASSEMBLY 9 3-3. BASE UNIT1Connectors(CN201, CN210: SERVO board)2Screw (B 3X8)3Ground wire4Four screws (B 2.6X6)5Boss (M) (Four pieces)6Base unitSpring3-4. BACK PANEL1Connectors(CN305: A OUT board)(CN502: CN508, CN509, CN512: AUDIO board)2Screw (B 3X8)3Ground wire4Two screws (B 3X6)6Back panel assembly5Three screws (BV 3X8) 10 SECTION 4ELECTRICAL BLOCK ADJUSTMENTSNote:1. CD Block is basically designed to operate 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 object lens by an applicator with neutral detergent whenthe signal level is low than specified value with the followingchecks.S Curve CheckProcedure :1. Connect oscilloscope to test point TP (FE: CN210 !pin).2. Connect between test point TP (FEI: IC101 pin) and TP (VC:CN210 !pin) by lead wire.3. Put disc (YEDS-18) in and turn Power switch on and actuate thefocus search.4. Check the oscilloscope waveform (S-curve) is symmetrical be-tween A and B. And confirm peak to peak level within 31 Vp-p.S-curve waveform5. After check, remove the lead wire connected in step 2.Note : Try to measure several times to make sure than the ratio ofA : B or B : A is more than 10 : 7. Take sweep time as long as possible and light up the bright-ness to obtain best waveform.RF Level CheckProcedure :1. Connect oscilloscope to test point TP (RF:CN215 1pin).2. Turn Power switch on.3. Put disc (YEDS-18) in and playback.4. Confirm that oscilloscope waveform is clear and check RF signallevel 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 CheckProcedure :1. Connect test point TP (ADJ: CN515 3pin) to Ground and TP(TEI: IC101 pin) to TP (VC: CN210 !pin) with a lead wire.2. Connect oscillscope to test point TP (TE: CN210 !pin)3. Turn Power switch on.4. Put disc (YEDS-18) in and playback.5. Confirm that the oscilloscope waveform is symmetrical on thetop and bottom in relation to 0Vdc, and check this level.Traverse waveform6. Remove the lead wire connected in step 1.oscilloscopeoscilloscopelevel : 1.2 Vp-pVOLT/DIV : 200mVTIME/DIV : 500ns+0.250.20oscilloscopeSERVO boardsymmetryABlevel: 3 1 Vp-pSERVO boardSERVO board2. Turn Power switch on.3. Put the disc (YEDS-18) in and playback.Confirm that reading on frequency counter is 4.3218 MHz.Setting of Focus/Tracking Auto Gain DataRefer to “Writing of Focus/Tracking Auto gain data” on page 3.RF PLL Free-run Frequency CheckProcedure :1. Connect frequency counter to test point TP (PLK: CN513 4pin)with lead wire.frequency counterTP (PLK)TP (FE)TP (VC)TP (RF)TP (VC)TP (TE)TP (VC)symmetry0Vdclevel : 2 1 Vp-pSERVO board 11 Skew Adjustment(Be sure to perform this adjustment when the optical pick-up or amechanical part of the optical pick-up has been replaced.)1. Remove the top plate. (See 3. Disassembly/Top Plate Assembly)2. Remove the eight screw (+B3X8) of the top plate and remove theKEY board.3. Connect the KEY board connector and the DISPLAY board con-nector.4. Remove the base unit. (Do not disconnect the connectors.)(Refer to 3. Disassembly/Base Unit.)5. Adjust with the unit placed sideways as shown in the figure.6. Connect and oscilloscope to TP (RF: 1Pin of CN215).7. While pressing the and buttons, press the POWER but-ton. (The discrete open/close detection is turned OFF.)8. Set a disk (YEDS-18) and press the button.9. Rotate the adjustment screw with a Phillips screwdriver and ad-just so that the oscilloscope waveform becomes clear.Note: A clear RF signal waveform means that the shape “” can beclearly distinguished at the center of the waveform.RF signal waveformlevel : 1.2 Vp-pVOLT/DIV : 200mVTIME/DIV : 500ns+0.250.20AdjustmentscrewBase unitKEY BOARD10.After the adjustment, lock the adjustment screw. SERVO BOARD Conductor Side CN514CN513(ADJ)(PLK)CN515IC101CN215CN2106 4 13 1(RF)(FE)(VC)(TE)29 (FEI)27 (TEI)112102111Note: Hold the baseunit horizontally. 12 SECTION 5DIAGRAMS5-1. CIRCUIT BOARDS LOCATIONAC IN boardB OUT boardBSL boardAC SW boardDISPLAY boardAUDIO boardKEY boardS POWER boardOUT SW boardOPTICAL boardFLEXIBLE boardSERVO boardA OUT boardU OUT board 13 5-2. IC PIN FUNCTIONS IC101 FOCUS/TRACKING/SLED SERVO/EFM COMPARATOR (CXD2515AQ)Pin NameSRONSRDRSFONTFDRTRONTRDRTFONFFDRFRONFRDRFFONVCOOVCOITESTDVssTES2TES3PDOVPCOVCKIAVD2IGENAVS2ADIIADIORFDCTESEFEVCFILOFILIPCOCLTVAVS1RFACBIASASYIASYOAVD1Pin No.12345678910111213141516171819202122232425262728293031323334353637383940I/OOOOOOOOOOOOOIIIIOOIIIOIIIIIOIOIIIIOFunctionSled drive output (Open)Sled drive outputSled drive output (Open)Tracking drive outputTracking drive output (Open)Tracking drive outputTracking drive output (Not used)Focus drive outputFocus drive output (Open)Focus drive outputFocus drive output (Open)VCO output for analog EFM PLL (Open)VCO output for analog EFM PLL (Connected to Ground)TEST pin connected normally to Ground (Connected to Ground)Digital GroundTEST pin connected normally to GroundTEST pin connected normally to GroundCharge-pump output for analog EFM PLL (Open)Charge-pump output for variable pitch PLL (Open)Clock input from variable pitch external VCO (Connected to Ground)Analog power supplyPower supply pin for operational amplifiersAnalog GroundA/D converter input pinOP amplifier output pinRF signal inputTracking error signal inputSled error signal inputFocus error signal inputCenter voltage input pinFilter output for master PLLFilter input for master PLLCharge-pump output for master PLLControl voltage input for master VCOAnalog GroundEFM signal inputAsymmetry circuit constant current inputAsymmetry comparate voltage inputEFM full swing outputAnalog power supply AbbreviationEFM: Eight to Fourteen ModulationPLL: Phase Locked Loop 14 Pin NameDVDDASYEPSSLWDCKLRCKDATABCLK64DATA64BCLK64LRCKGTOPXUGFXPLCKGFSPFCKC2POXRAOFMNT3MNT2MNT1MNT0XTAIXTAOXTSLDVssFSTIFSTOC4MC16MMD2DOUTEMPHWFCKSCORSBSOEXCKSUBQSQCKMUTESENSPin No.41424344454647484950515253545556575859606162636465666768697071727374757677787980I/OIIOOOOOOOOOOOOOOOOOOIOIIOOOIOOOOOIOIIOFunctionDigital power supplyAsymmetry circuit ON/OFF (Connected to +5V)Audio data output mode selection input (Connected to Ground)48-bit slot D/A interface. Word clock. (Open)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 (Open)DA 13 output when PSSL=1.64-bit slot data when PSSL=0 (Open)DA 12 output when PSSL=1.64-bit slot data when PSSL=0 (Open)DA 11 output when PSSL=1.GTOP output when PSSL=0 (Open)DA 10 output when PSSL=1.XUGF output when PSSL=0 (Open)DA 09 output when PSSL=1.XPLCK output when PSSL=0DA 08 output when PSSL=1.GFS output when PSSL=0DA 07 output when PSSL=1.RFCK output when PSSL=0DA 06 output when PSSL=1.C2PO output when PSSL=0 (Open)DA 05 output when PSSL=1.XRA0F output when PSSL=0 (Open)DA 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 PSSL=1.MNT0 output when PSSL=0Xtal oscillator circuit inputXtal oscillator circuit output (Open)Xtal selection input pin (Connected to Ground)Digital Ground2/3 divider output of pins 62, 632/3 divider output of pins 62, 634.2336 MHz output (Open)16.9344 MHz output (Open)Digital-out ON/OFF control pinDigital-out output pinPlayback disc output in emphasis mode (Open)WFCK outputSub-code sync outputSub-P through Sub-W serial output (Open)Clock input for SBSO read-out (Ground)Sub-Q 80-bit outputClock input for SQSO read-outMuting selection pinSENS output AbbreviationWFCK: Wirte Frame Clock 15 Pin NameXRSTDIRCSCLKDFSWATSKDATAXLATCLOKCOUTDVDDMIRRDFCTFOKFSWMONMDPMDSLOCKSSTPSFDRPin No.81828384858687888990919293949596979899100I/OIIIIIIIIOOOOOOOOOIO AbbreviationGFS: Guard Frame SyncFunctionSystem resetUsed in 1-track jump mode (Connected to +5v)SENS serial data read-out clockDefect selection pin (Connected to Ground)Input pin for anti-shock (Connected to Ground)Serial data input, supplied from CPULatch input, supplied from CPUSerial data transfer clock input, supplied from CPUNumbers of track counted signal output (Open)Digital power supplyMirror signal output (Open)Defect signal output (Open)Focus OK output (Open)Output to select spindle motor output filter (Open)Output to control ON/OFF of spindle motor (Open)Output to control