Sony-TXDRE210-cd-sm 维修电路原理图.pdf

MICROFILMTXD-RE210AEP ModelSERVICE MANUALCOMPACT DISC CASSETTE DECKModel Name Using Similar MachanismNEWCDCD Machanism TypeCDM28-5BD23SectionBase Unit NameBU-5BD23Optical Pick-up TypeKSS-213B/S-NTape deck Model Name Using Similar MachanismTXD-R11SectionTape Transport Mechanism TypeTCM-190RB52CDolby noise reduction manufactured under license fromDolby Laboratories Licensing Corporation.“DOLBY” and the double-D symbol a are trademarks ofDolby Laboratories Licensing Corporation.SPECIFICATIONSRadioFans.CN 收音机爱 好者资料库 2 TABLE OF CONTENTSSpecifications . 11.SERVICING NOTE. 32.GENERALLocation and Function of Controls . 43.DISASSEMBLY3-1. Front Panel Removal . 53-2. CD Mechanism Removal . 53-3. Mechanism Deck Removal. 64.ADJUSTMENTS4-1. Mechanical Adjustments . 74-2. Electrical Adjustments. 75.EXPLANATION OF IC TERMINALS .116.DIAGRAMS6-1. Printed Wiring Boards BD Section . 146-2. Schematic Diagram BD Section . 176-3. Schematic Diagram Main Section . 226-4. Printed Wiring Boards Main Section . 277.EXPLODED VIEWS7-1. Chassis Section . 307-2. Panel Section . 317-3. Mechanism Section -1 . 327-4. Mechanism Section -2 . 337-5. CD Mechanism Section -1. 347-6. CD Mechanism Section -2. 358.ELECTRICAL PARTS LIST . 36Laser component in this product is capable of emitting radiationexceeding the limit for Class 1.This appliance is classified as aCLASS 1 LASER product.The CLASS 1 LASERPRODUCT MARKING is lo-cated on the rear exterior.CAUTIONUse of controls or adjustments or performance of procedures otherthan those specified herein may result in hazardous radiation ex-posure.This caution labelis located insidethe unit.SAFETY-RELATED COMPONENT WARNING!COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINEWITH MARK ! ON THE SCHEMATIC DIAGRAMS AND IN THEPARTS LIST ARE CRITICAL TO SAFE OPERATION.REPLACE THESE COMPONENTS WITH SONY PARTS WHOSEPART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR INSUPPLEMENTS PUBLISHED BY SONY.RadioFans.CN 收音机爱 好者资料库 3 SECTION 1SERVICING NOTENOTES ON HANDLING THE OPTICAL PICK-UPBLOCK OR BASE UNITThe laser diode in the optical pick-up block may suffer electrostaticbreakdown because of the potential difference 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 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-up block. Therefore, when checking the laser diode emission, ob-serve more than 30 cm away from the objective lens. CHUCK PLATE JIG ON REPAIRINGOn repairing CD section, playing a disc without the CD lid, useChuck Plate Jig.r Code number of Chuck Plate Jig : X-4918-255-1r Disc table getting out procedure on the power supply is OFF.12Disc table3 4 SECTION 2GENERALLOCATION AND FUNCTION OF CONTROLS3249! CD operating buttons) button 0button buttonp(stop) buttonP(pause) button! RESET button! DISPLAY button! TIME button! EDIT/TIME FADE button CREAR button CHECK button PHONES jack PHONE LEVEL control1 POWER switch2 Disc tray3 PLAY MODE button4 OPEN/CLOSE button5 REPEAT button6 CD SYNCHRO button7 FADER button8 ARL button9 Cassette deck! REC LEVEL control/AUTO indicator! DOLBY NR switch! DIRection MODE switch! Eject button! Tape operating buttonsrREC buttonRREC MUTE button0, )buttons, buttonsp(stop) buttonP(pause) button56 7 81! ! !This section is extracted frominstruction manual. 5 Note : Follow the disassembly procedure in the numerical order given.12Disc tableLoading panelChassisFront panel assy6Wire (Flat type) (7 core) to Main board (CN806)7Wire (Flat type) (23 core) to Main board (CN805)8Wire (Flat type) (7 core) to Main board (CN801)9Wire (Flat type) (9 core) to Main board (CN804)5 Screw (+BV TP 3 x 6)5 Three Screws (+BV TP 3 x 6)43ChassisCD Mechanism1 Four Screws (+BV TP 3 x 6)2 SN802 (6P)33-1. FRONT PANEL REMOVAL3-2. CD MECHANISM REMOVALSECTION 3DISASSEMBLY 6 Mechanism deck3 Two Screws (+BV TP 2.6 x 8)41 Press button23 Two Screws (+BV TP 2.6 x 8)Front panel assyCasstte lid assy3-3. MECHANISM DECK REMOVAL 7 SECTION 4ADJUSTMENTS4-1. MECHANICAL ADJUSTMENTSPRECAUTION1. Clean the following parts with a denatured-alcohol-moistenedswab :record/playback headpinch rollererase headrubber beltscapstan2. Demagnetize the record/playback head with a head demagne-tizer.3. Do not use a magnetized screwdriver for the adjustments.4. After the adjustments, apply suitable locking compound to theparts adjusted.5. The adjustments should be performed with the rated power sup-ply voltage unless otherwise noted. r Torque MeasurementModeTorque MeterMeter ReadingForwardCQ-102C30 to 65 gcm(0.42 0.9 ozinch)ForwardCQ-102C1 to 7 gcmBack Tension(0.0134 0.097 ozinch)ReverseCQ-102RC30 to 65 gcm(0.41 0.9 ozinch)ReverseCQ-102RC1 to 7 gcmBack Tension(0.0134 0.097 ozinch)FF, REWCQ-201B70 to 120 gcm(0.972 1.66 ozinch)4-2. ELECTRICAL ADJUSTMENTS1. The adjustment should be performed in the publication.(Be sure to make playback adjustment at first.)2. The adjustment and measurement should be performed forboth L-CH and R-CH.rSwitch positionDOLBY NR switch: OFFDIR MODE switch:Ar Standard record position :Deliver the standard input signal level to input jack and setthe REC LEVEL control to obtain the standard output signallevel as follows.Record ModesetTAPE OUT+TAPE INAF OSCattenuator600 10 k47 klevel meter r Standard Input LevelInput TerminalTAPE INsource impedance10kinput signal level0.5V (3.8dB)r Standard Output LevelOutput TerminalTAPE OUTload impedance47koutput signal level0.5V (3.8dB) r Test tapeTapeContentsUseP-4-A10010 kHz,10dB Azimuth AdjustmentP-4-L300315Hz,0dBPB Level AdjustmentWS-48B3kHz,0dBTape Speed Adjustment 0dB=0.775VTC Test Modesetting :Push POWER button with STOP key and REC MUTEkey.function :r when start recording, COUNTER is set to “0000”and COUNTER MEMORY function is effective(“MEMORY” appears on FLD).r While playing or AMS, the signal level is displayed.(“L” / “H”) r Test tapeTapeContentsUseP-4-A10010 kHz,10dBHead Azimuth AdjustmentP-4-L300315Hz,0dBLevel AdjustmentWS-48B3kHz,0dBTape Speed Adjustment 0dB=0.775VRecord/Playback Head Azimuth Adjustment r Carrey out servicing or repairs form the REVERSE directionfirst.Procedure :1. Mode : Forward playbacksetlevel meter+test tapeP-4A100(10kHz, 10dB)47 kTAPE OUT2. Turn the adjustment screw for the maximum output levels. Ifthese levels do not match, turn the adjustment screw until bothof output levels match together within 1dB.L-CHpeakR-CHpeakL-CHpeakR-CHpeakScrewpositionoutputlevelwithin1 dBwithin1 dBscrew angle 8 Sample Value of Wow and flutterW. RMS (JIS) within 0.3%(test tape : WS-48B)Playback Level AdjustmentProcedure :Mode : Playbacksetlevel meter+test tapeP-4-L300(315Hz, 0dB)47 kTAPE OUTAdjust RV11 (L-CH) and RV21 (R-CH) so the level meter readingbecomes the adjustment limits below.Adjustment Level :TAPE OUT level : 7.7 0.5dB (0.301 to 0.338V)Level Difference between Channels : within 0.5dBConfirm the TAPE OUT level does not change in playback modewhile changing the mode from playback to stop several times.Adjustment Location : AUDIO board.(see page 9)Record Bias AdjustmentProcedure :1. Mode : RecordsetAF OSCattenuatorblank tapeCS-123600 10 k1) 315Hz2) 10kHz72.3mV (20.6dB)TAPE IN2. Mode : Playbacksetlevel meter+recordedportion47 kTAPE OUT3. Confirm playback the signal recorded in step 1 become adjust-ment level as follows.4. If these levels do not adjustment level, adjust the RV12(L-CH) and RV22 (R-CH) to repeat step 1 and 4.Adjustment level : Playback output of 315Hz to playback outputof 10kHz : 0.5dB.Adjustment Location : AUDIO board.3. Playback ModeVHin phase 45 90 135 180goodwrongsetL-CHR-CHscreen patterntest tapeP-4A100(10kHz, 10dB)OsilloscopeTAPE OUT47 k47 k4. Change the reverse playback mode and repeat the steps 1 to 3.5. After the adjustment, lock the adjustment screw with suitablelocking compound.Adjustment Location : record/playback head forward sideadjustment screwsrevers sideTape Speed AdjustmentProcedure :Mode : Playback+setfrequency countertest tapeWS-48B(3kHz, 0dB)47 kTAPE OUT1.Set to forward playback mode.2.Adjust RV71 so that frequency reading becomes 3,000 90Hz.Frequency difference between the beginning and the end of the tapeshould be within 3%.Adjustment Location : AUDIO board.(see page 9) 9 Record Level AdjustmentProcedure :1. Mode : RecordsetAF OSCattenuatorblank tapeCS-123600 10 k315Hz 72.3mV (20.6dB)TAPE IN2. Mode : Playbacksetlevel meter+recordedportion47 kTAPE OUT3. Confirm playback the signal recorded in step 1 become adjust-ment level as follows.4. If these levels do not adjustment level, adjust the RV111(L-CH) and RV211 (R-CH) to repeat step 1 and 4.Adjustment Level :TAPE OUT level : 26 0.5dB (36.7 to 41.1mV)Adjustment Location : MAIN board.AUDIO BOARD (Conductor side)Record Bias(R)(L)RV22 RV12RV71 (NORMAL) Tape speedRV21(R)RV11(L)Playback LevelMAIN BOARD(Component side)RV111 : Record level (L-CH)RV211 : Record level (R-CH)CD SECTIONNote :1. CD Block basically constructed 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 the oscilloscope with more than 10M impedance.4. Clean an object lens by an applicator with neutral detergent whenthe signal level is low than specified value with the followingchecks.S-Curve Check+BD boardTP (FE)TP (VC)oscilloscopeProcedure :1. Connect oscilloscope to test point TP(FE) and BD board.2. Connect between test point TP (FEI) and TP (VC) by lead wire.3. Turned Power switch on.4. Put disc (YEDS-18) in and turned Power switch on again andactuate the focus search. (Actuate the focus search when disctable is moving in and out.)5. Check the oscilloscope waveform (S-curve) is symmetrical be-tween A and B. And confirm peak to peak level within3 1Vp-p.ABwithin 3 1Vp-psymmetry6. After check, remove the lead wire connected in step 2.Note : rTry to measure several times to make sure that the ratio ofA : B or B : A is more than 10 : 7.rTake sweep time as long as possible and light up the bright-ness to obtain best waveform.RF Level Check+BD boardTP (RF)TP (VC)oscilloscopeProcedure :1. Connect oscilloscope to test point TP (RF) on BD board.2. Turned Power switch on.3. Put disc (YEDS-18) in and playback.4. Confirm that oscilloscope waveform is clear and check RF sig-nal level is correct or not.Note :Clear RF signal waveform means that the shape “ ” can beclearly distinguished at the center of the waveform.level : 1.2 Vp-p+0.250.20 VOLT/DIV : 200mVTIME/DIV : 500nSRF signal waveform 10 E-F Balance (1 Track Jump) Check+BD boardTP (TE)TP (VC)oscilloscope(DC range)Procedure :1. Connect oscilloscope to test point TP(TE) on BD board.2. Turned Power 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 center of the Traverse waveform.Confirm the following :A/B x 100 = less than 22%0VCenter of the waveformA (DC voltage)level : 1.3 0.6 Vp-p1 track jump waveformsymmetryBRF PLL Free-run Frequency CheckProcedure :1. Connect frequency counter to test point (PLCK) with lead wire.+frequency counterBD boardTP (PLCK)2. Turned Power switch on.3. Put disc (YEDS-18) in to play the number five track.Confirm that reading on frequency counter is 4.3218MHz.Adjustment Location :151011152015101428252015BD BOARD (Side B)TEFERFVCPLCKTEI 11 IC801 PD78044FGF029-3B9 (SYSTEM CONTROL)SECTION 5EXPLANATION OF IC TERMINALSPin No.Pin nameI/ODescription1LEDOAUTO REC LEVEL LED ON/OFF.271G 6GOFL grid drive.8VDDPower supply (+5V)9CLKOCommand clock output for IC101 and IC104.10DATAOCommand data output for IC101 and IC104.11SENSISENS input for IC101 and IC104.12PGMLOCommand latch output for IC104.13AMUTEOMute control output.14SQCLKOQ-data read-out for clock output.15NCONot used (Open).16SUBQIQ-data input. 17RESETISystem reset input.18METALIMetal tape detect input. 19TC TESTITC test mode input. “L” : Test mode.20AVSSA/D ground terminal.21LD INOCD loading-in output.22LD OUTOCD loading-out output.23AD CTRL1OA/D extended input (1) select signal output.24AD CTRL0OA/D extended input (0) select signal output.25AD1IA/D extended input (1).26AD0IA/D extended input (0).27S. REELISupply reel pulse input.28CD TESTICD test mode input.29AVDDA/D analog power supply.30AVREFIA/D reference voltage input.31STOP SWISTOP switch input.32XT2Not used (Open).33VSSGround terminal.34X1ISystem clock. (4MHz)35X2OSystem clock. (4MHz)36NR1ODolby mode select output (1).37NR0ODolby mode select output (2). 38BS/AMSOBlank skip/AMS select output. 39RELAYOREC/PLAY select output.40XLTOCommand lucth output.41REELOReel motor control output.42REEL+OReel motor control output.43VOL OUTOElectrical volume control. 44REC MUTEOREC mute ON/OFF control.45POWER OUTOPower switch control.46SCORIQ-data sync input.47SIRCS INIRemote control signal input.48VSS (IC)Ground terminal.49AMS INIAMS signal input.50POWER INIPower OFF detect input. 12 Pin No.Pin nameI/ODescription51LD ONOLaser diode ON output.52VDDPower supply (+5V).53HP SELOHeadphone output selection.54INPUT SELORecording source select. 55TC LINE MUTEOTC line mute control output.5670S1S15OFL segment output.71VDISPPower supply for FL.7277S16S21OFL segment output.78BIASOBias ON/OFF output.79PB/RECOPB/REC select output for Dolby (IC501).80CAP.MOCapstan motor ON/OFF control. 13 SECTION 6DIAGRAMSr CIRCUIT BOARDS LOCATIONPOWER SW boardBD boardTRANSFORMER boardLEAF SW boardMAIN boardVOL boardAUDIO boardPANEL boardLOADING boardHP board 30 The components identified by mark !or dotted line with mark ! are criticalfor safety.Replace only with part number specified.SECTION 7EXPLODED VIEWSNOTE :r-XX, -X mean standardized parts, so they mayhave some difference from the original one.rItems marked “ * ”are not stocked since they areseldom required for routine service. Some delayshould be anticipated when ordering these items.rThe mechanical parts with no reference numberin the exploded views are not supplied.rHardware (# mark) list and accessories and pack-ing materials are given in the last of this partslist.7-1. CHASSIS SECTION 4A : TRANSFORMER board#1#1#1#1#1#1#1#1#1#1#1#1#1#1#1#5T5014A12(including 4A) 312312456677891011not suppliedCDM28-5BD23not suppliednot suppliednot suppliednot suppliednot suppliednot suppliedRef. No.Part No.DescriptionRemarkRef. No.Part No.DescriptionRemark13-010-294-01PANEL, LOADING* 2A-2007-704-A MAIN BOARD, COMPLETE3X-4947-207-2FOOT ASSY (F50150S)41-782-313-11WIRE (FLAT TYPE) (26 CORE)53-703-397-01STOPPER, WIRING* 63-346-265-31HOLDER, PC BOARD73-704-366-01SCREW (CASE) (M3X8)* 83-931-432-01CASE (410726)* 93-703-244-00BUSHING (2104), CORD!101-575-651-21CORD, POWER* 113-010-302-01PANEL, BACK124-977-358-11CUSHION (8X12.5)!T5011-427-910-11TRANSFORMER, POWER 31 7-2. PANEL SECTION pB : POWE