Sony-TCSD1-tape-sm 维修电路原理图.pdf

TC-SD1AEP ModelUK ModelE ModelSERVICE MANUALSTEREO CASSETTE DECKMICROFILMManufactured under license from Dolby LaboratoriesLicensing Corporation.“DOLBY” and the double-D symbol a are trademarksof Dolby Laboratories Licensing Corporation.Model Name Using Similar MechanismTC-PX100Tape Transport Mechanism TypeTCM-ACLM572SPECIFICATIONSRadioFans.CN 收音机爱 好者资料库 2 SAFETY-RELATED COMPONENT WARNING!COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE WITHMARK ! ON THE SCHEMATIC DIAGRAMS AND IN THE PARTSLIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESECOMPONENTS WITH SONY PARTS WHOSE PART NUMBERSAPPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTSPUBLISHED BY SONY.TABLE OF CONTENTS1. GENERAL 32. DISASSEMBLY2-1.Case, Front Panel 42-2.Mechanism Deck (TCM-ACLM572) 52-3.Control Board, Dolby Board 52-4.Power Trans Board, AC Select SW Board, Power Board 62-5.Tray Assembly 62-6.Mechanism Chassis Block 72-7.Capstan Reel Motor (M902) 73. DIAGRAMS3-1.Circuit Boards Location 83-2.Schematic diagram Display Section 93-3.Printed Wiring Board Display Section 113-4.Printed Wiring Board Main Section 163-5.Schematic Diagram Main Section 213-6.IC Block Diagrams 253-7.IC Pin Function Description 274. MECHANICAL ADJUSTMENT 295. ELECTRICAL ADJUSTMENT 296. EXPLODED VIEWS6-1.Case, Front Panel Section 336-2.Chassis Section 346-3.Mechanism Deck Section-1 (TCM-ACLM572) 356-4.Mechanism Deck Section-2 (TCM-ACLM572) 366-5.Mechanism Deck Section-3 (TCM-ACLM572) 377. ELECTRICAL PARTS LIST 38RadioFans.CN 收音机爱 好者资料库 3 SECTION 1GENERALThis section is extractedfrom instruction manual. 4 SECTION 2DISASSEMBLYNote :Follow the disassembly procedure in the numerical order given.2-1.CASE, FRONT PANEL2 Two screws, case stopper8 Front panel1 Two screws, case stopper7 Two screws (+B 2.6 8)6 Loading panel5 Slide the tray. (Remove the connector from M901, supply the 6 V power from an external regulated power supply to pin-5 and pin-6 of CN05.)4 Case3 Screw (+B 2.6 8)CN05M901Pin-5?Pin-6?Regulated DCpower supplyConnectorConnectorRear sidePin-1Pin-6CN0516+ 5 2-2.MECHANISM DECK (TCM-ACLM572)2-3.CONTROL BOARD, DOLBY BOARD2 Connector3 Connector4 Connector5 Mechanism deck (TCM-ACLM572)1 Four screws (+B 3 10)2 Two screws (+B 2.6 8)1 Two connectors4 CONTROL board3 Two screws (+B 2.6 8)7 DOLBY board6 Four screws (+B 2.6 8)5 ConnectorHarnessClamper HarnessPrecaution for assembling : Fix the harness with the clamper. 6 2-4.POWER TRANS BOARD, AC SELECT SW BOARD, POWER BOARD2-5.TRAY ASSEMBLY3 POWER TRANS board8 POWER board1 Connector6 Screw (+B2.6 8)2 Two screws (+PWH3 6)4 Two screws (+B3 10)7 Suport5 Screw (+B2.6 8)1 Screw (1.7 8.2)4 Arm (576)2 Spring (B)3 BossStainless ball (5 DIA)5 Tray assemblyNote : Be careful not to drop the stainless ball (5 DIA) when removing the tray assembly. 7 8 2-7.CAPSTAN REEL MOTOR (M902)2-6.MECHANISM CHASSIS BLOCK1 Four screws (+P 3 6)2 Screw (+P 3 8)3 Mechanism chassis3 Claws (4 claws)4 CONTROL board2 Screw (stepped)5 Remove soldering of the motor lead wire.1 Remove soldering of the plunger solenoid6 Three screws for motorPlungersolenoid7 Hook the belt.8 Capstan reel motor (M902)SECTION 3DIAGRAMS3-1. CIRCUIT BOARDS LOCATION 8 CONNECTION boardREAR PANEL boardCONTROL boardPOWER TRANS boardPOWER boardDOLBY boardO/C SW boardVR boardFRONT boardMODE CONTROL boardTC-SD13-2. SCHEMATIC DIAGRAM DISPLAY SECTION 9 10 Note on Schematic Diagram: All resistors are in and 1/4 W or less unless otherwisespecified. C : panel designation. U : B+ Line.Note: The components identified by mark ! or dotted linewith mark ! are critical for safety.Replace only with part number specified.TC-SD13-3. PRINTED WIRING BOARD DISPLAY SECTION COMPONENT SIDECONDUCTOR SIDE Refer to page 8 for Circuit Boards Location. Refer to page 24 for MODE CONTROL board Schematic Diagram.Note on Printed Wiring Board: Y : parts extracted from the conductor side. b : Pattern of the rear side. 15 14 13 12 11 TC-SD1COMPONENT SIDECONDUCTOR SIDE3-4. PRINTED WIRING BOARD MAIN SECTION Refer to page 8 for Circuit Boards Location.Note on Printed Wiring Board: Y : parts extracted from the conductor side. b : Pattern of the rear side. 16 17 18 19 20 TC-SD13-5. SCHEMATIC DIAGRAM MAIN SECTION Note on Schematic Diagram: All capacitors are in F unless otherwise noted. pF: F50 WV or less are not indicated except for electrolyticsand tantalums. All resistors are in and 1/4 W or less unless otherwisespecified. C : panel designation. U : B+ Line. V : B Line. H : adjustment for repair. Voltages and waveforms are dc with respect to groundunder no-signal (detuned) conditions.no mark : REC/PB() : REC : PB : STOP Voltages are taken with a VOM (Input impedance 10 M).Voltage variations may be noted due to normal productiontolerances. Waveforms are taken with a oscilloscope.Voltage variations may be noted due to normal productiontolerances. Circled numbers refer to waveforms. Signal path.E: PBa: REC Refer to page 25 for IC Block Diagrams. Refer to page 27 for IC Pin Function Description. Refer to page 15 for MODE CONTROL board Printed Wiring Board. 21 22 23 24 Ref. No.LocationD01F-5D02B-1D03B-7D04B-7D05E-9D06E-10D07D-12D12F-14D13C-1D14A-1D15C-3D16B-3D17E-12D19B-3D20C-3D22E-14D23E-14D24E-12D25E-12D28D-2D36F-14D37F-15IC01F-5IC02F-9IC03F-1IC04G-13IC05C-6IC06C-1IC07D-5IC08C-2IC10G-14IC11E-15Q01F-7Q02G-7Q03E-9Q04E-8Q05G-10Q05AH-15Q06G-9 Semiconductor LocationRef. No.LocationQ06AG-14Q07G-5Q08G-4Q09F-3Q10G-4Q11G-4Q12G-3Q12AG-3Q13F-3Q13AG-3Q14E-1Q15F-1Q16G-2Q17G-2Q18G-2Q19B-2Q20D-11Q21B-3Q22C-2Q23C-2Q24C-2Q25D-2Q26C-3Q27D-3Q29C-7Q30C-7Q31C-7Q32C-7Q33C-7Q34D-7Q35C-6Q36C-6Q37B-12Q38C-7Q39G-12Q40G-12Q41H-13Q42B-12Q43C-13Q44E-14Q45G-10Note: The components identified by mark ! or dotted linewith mark ! are critical for safety.Replace only with part number specified. 25 3-6.IC BLOCK DIAGRAMSIC02CXA1561S12345678910112221201918171615141312IREFIREFPBIN2LINEIN2MPXIN2MPXOUT2LINEOUT2TCH2TCL2RECOUT2NRSWMOAMOAHLSSSKHDETLDETLLSVEEVEEVCCHLSHDETLDETLLSREC AMPSSKREC AMPModeControlVCCMODERECOUT1TCL1TCH1LINEOUT1MPXOUT1MPXIN1LINEIN1PBIN1VCTIC01PC4570HA123456789OUT1IN1+IN1VEE+IN2IN2OUT2VCCVCCIC03CXA1598SGHCALGPCALGLGHGPRECCALNCREC INREFBOOSTVCCREC OUTVEEREC OUT202122232419 18 17 16 15 14 131211F/QFQFMFPCALDGNDMUTENCREC INGNDBOOST123456789 10PARAMETERCTRL 26 ON/OFFCURRENTLIMITERSTARTCIRCUITVREFOVER HEATPROTECTON/OFFCURRENTLIMITER12345678910VCCVMUTEVCCVREFERRORAMPVREFERRORAMPVO1VCCCN1ENEN DISPLAYGNDNCCN2VEEVO2 _1.8V _140uACOMPARATER12345678910GNDMOTORDRIVENOISEFILTERCLAMPFWD.INREV.INVCC 1VCC 2NOISEFILTERMOTORDRIVEMOTORDRIVEMOTORDRIVET.S.DO.C.PFWD/REV/STOPCONTROL LOGICIC04LA5617IC06LB1641 27 Pin No.123456789101112131415161718192021222324252627282930313233343536373839404142434445I/OOIIIIOOOOIIIIII/OI/OIIIOOOOIIIIIIIII/OOOOOODescriptionSystem ground terminalSystem clock output (8 MHz)System clock input (8 MHz)Reset inputNo usedNo usedTest terminalPrimary power supply ON/OFF inputMechanism. AU power supply ON/OFF outputType 4 recording bias selector outputType 2 recording bias selector outputType 1 recording bias selector outputTape type 2 inputTape type 4 inputRecord safety tab input of side ARecord safety tab input of side AHead sensor input12C clock input/output12C data input/outputLoader open switch inputLoader close switch inputTEST inputSolenoid outputCapstan motor outputLoader open (motor) outputLoader close (motor) outputPanel switch inputOption TC version inputNo usedAD ground terminalAD reference voltageSystem power inputKey 1 inputKey 2 inputHalf switch inputAMS inputPulse inputMeter L-CH inputI2C BUSY input/outputNo usedREC/PB selector outputRELAY selector outputBias selector outputLINE mute selector outputRecord mute selector outputPin NameVSSOSC-OUTOSC-INRESETNCNCTESTPOWER-INPOWER-OUTTYPE4TYPE2TYPE1CHROM-SWMETAL-SWREC.FWD-SWREC.REW-SWMODE-SWI2C-CLOCKI2C-DATAOPEN-SWCLOSE-SWTESTSOLENOIDECAPSTANOPEN-MCLOSE-MPANEL-SWOP-VERSIONNCAD-GNDAD-REFVCCKEY1KEY2HALF-SWAMS-INPULSEMETER-L/RI2C-BUSYSYSREC/PBRELAYBIASLINE MUTEREC MUTE3-7.IC PIN FUNCTION DESCRIPTION CONTROL BOARD IC05 TMP87CH48DF (SYSTEM CONTROL) 28 Pin No.46474849505152535455565758596061626364I/OOOOOOOOOOOOOOOOOOOODescriptionPlayback mute selector outputDolby ON/OFF outputDolby B/C outputNo usedPower ON LED (green) outputPanel LED (blue) outputLevel meter 1 (minimum dB) LED (green) outputLevel meter 2 LED (green) outputLevel meter 3 LED (green) outputLevel meter 4 LED (red) outputLevel meter 5 (maximum dB) LED (red) outputTape indicator LED (amber) outputCD synchro LED (red) outputREC LED (red) outputPAUSE LED (orange) outputREW LED (amber) outputFF LED (amber) outputREV LED (green) outputFWD LED (green) outputPin NamePB MUTEDOLBY ON/OFFDOLBY B/CSTB-R-LEDSTB-G-LEDPANEL-LEDLEBEL1-LEDLEVEL2-LEDLEVEL3-LEDLEVEL4-LEDLEVEL5-LEDTAPE-LEDCDSYNC-LEDREC-LEDPAUSE-LEDREW-LEDFF-LEDREV-LEDFWD-LED 29 SECTION 4MECHANICAL ADJUSTMENTSECTION 5ELECTRICAL ADJUSTMENT Torque Measurement Tape TensionPrecaution1.Clean the following parts with a denatured alcohol-moistenedswab:record/playback headspinch rollerserase headrubber beltscapstanidlers2.Do not use a magnetized screwdriver for the adjustments.3.After the adjustments, apply suitable locking compound to theparts adjusted.4.The adjustments should be performed with the rated powersupply voltage unless otherwise noted.31 to 61 g cm2 to 6 g cm36 to 61 g cm2 to 6 g cm61 to 143 g cmModeFWDFWDback tensionREVREVback tensionFF/REWTorque meterCQ-102CCQ-102RCCQ-201BMeter readingFWD tensionREV tensionCQ-403ACQ-403R100 g or more100 g or morePrecaution1.Perform adjusting on the test mode.2.Demagnetize the record/playback head with a headdemagnetizer.3.Do not use a magnetized screwdriver for the adjustments.4.After the adjustments, apply suitable locking compound to theparts adjust.5.The adjustments should be performed with the rated powersupply voltage unless otherwise noted.6.The adjustments should be performed in the order given in thisservice manual. (As a general rule, playback circuit adjustmentshould be completed before performing recording circuitadjustment.)7.The adjustments should be performed for both L-CH and R-CH.8.Switches should be set as follows.DOLBY NR.OFFDIRECTION .A Standard Recording PositionAdjust the REC LEVEL (VR02) control so that the standard input/output signal level is obtained in the following connection. Record Mode Standard Input LevelInput terminalLINE INsource impedance10kinput signal level0.5V (3.8dB)Standard Output LevelOutput terminalLINE OUTload impedance47kWoutput signal level0.5V (3.8dB)0dB = 0.775 VTest ModeTurn OFF the main power and insert the shorting plug to the testpoint CN13 (2P) on the CONTROL board (setting IC05 pin 22 to“L”). Then turn ON the main power which activate the TEST mode.All displays flash once.If a recording is performed in the TEST mode, the REC MEMORYmode becomes active at the moment of recording so that the tape isrewound by the amount of recording when a tape is rewound afterrecording.After adjustment, be sure to remove the shorting plug from the testpoint CN13 (2P).Test TapeTypeSignalUsed forP-4-A10010 kHz, 10 dBAzimuth AdjustmentWS-48B3 kHz, 0 dBTape Speed AdjustmentP-4-L300315 Hz, 0 dBPB Level Adjustment10k 47k 600 audio oscillatorattenuator LINE INLINE OUTlevel meterset 30 L-CH peakL-CH peakR-CH peakR-CH peakscrew positionoutputlevelwithin 1dBwithin 1dBangle ofadjustmentscrew4.Enter the FWD mode and perform steps 1 to 3.5.Check that the phase difference between L-CH and R-CH is inthe range of in-phase to 90.6.After adjustment, lock the screw with locking compound.Adjustment Location:Tape Speed AdjustmentProcedure :Mode : FWD playback1.Enter the FWD playback mode, and play back test tape.2.Adjust the adjustment control (variable resistor) of the motor(M902) until the frequency counter reading becomes 3,000 Hz 90 Hz.3.Confirm that the tape speed deviation between tape top and tapeend is within 3%.Adjustment location :test tape P-4-A100(10kHz, 10dB)setLINE OUT47k level meterRecord/Playback Head Azimuth AdjustmentNote: Perform this adjustment after the head is turned around.(If the head is positioned in the FWD direction, turn aroundthe head and start adjustment from the REV mode asdescribed below.)* When the azimuth adjustment is performed, the azimuthadjustment screw must end up with rotation of tighteningdirection (i.e. clockwise direction).Adjustment procedure :1.Mode: REV playback2.Turn the azimuth adjustment screw for the maximum outputlevel of L-CH and R-CH.If the peak levels do not match for L-CH and R-CH, turn theadjustment screw until both of output levels match togetherwithin 1 dB of peak.3.Phase CheckMode: REV playbacktest tape P-4-A100(10kHz, 10dB)L-CHR-CHset47k 47k oscilloscopeLINE OUTVHOscilloscope Lissajous waveformin phase45 90 180 135 GoodWrongAdjustment screw (FWD side)Adjustment screw (REV side)test tape WS-48B (3kHz, 0dB)setL- or R-CH of LINE OUT 47k frequency counterM902adjustment control(variable resistor)Sample Value of Wow and flutterW. RMS (JIS) within 0.3%(test tape: WS-48B) 31 Playback Level AdjustmentProcedure :1.Mode : FWD playbackAdjust SFR01 (L-CH) and SFR02 (R-CH) so that the reading onlevel meter meets the adjustment limits below.Adjustment Limits :LINE OUT level : -7.7 0.5 dB (301.5 to 338.5 mV)Level difference between channels : within 0.5 dBCheck that the LINE OUT level does not change even if Playbackand Stop operations are repeated several times.Adjustment Location : DOLBY board (Refer to page 32.)Record BIAS AdjustmentSetting : The REC LEVEL control must be positioned at the standard recordlevel position. (Refer to page 29.)Procedure :1.Mode: Record2.Playback3.Reproduce the portion of tape which is recorded in step 1.Confirm that the playback level stays within the specified rangeof the Adjustment Level.4.If the playback level is outside the specified range, adjust theSFR03 (L-CH) and SFR04 (R-CH), and repeat steps 1 to 3 untilthe specified range is satisfied.Adjustment Level : Difference of the playback level between10 kHz and 315 Hz : 0 dB 0.5 dB when 315 Hz is the reference.Adjustment Location : DOLBY board (Refer to page 32.)test tape P-4-L300(315Hz, 0dB)setLINE OUTlevel metersetAF OSCattenuator 600blank tapeCS-123LINE IN1) 315Hz2) 10kHz50mV ( 23.8dB)recorded portionsetLINE OUTlevel meterRecord Level AdjustmentSetting : The REC LEVEL control must be positioned at the standard recordlevel position. (Refer to page 29.)Procedure :1.Record2.Playback3.Reproduce the portion of tape which is recorded in step 1.Confirm that the playback level stays within the specified rangeof the Adjustment Level.4.If the playback level is outside the specified range, adjust theSFR11 (L-CH) and SFR12 (R-CH), and repeat steps 1 to 3 untilthe specified range is satisfied.Adjustment Level : -23.8 dB 0.5 dB (47.3 to 53.1 mV)Adjustment Location : DOLBY board (Refer to page 32.)315Hz, 50mV (23.8dB)setAF OSCattenuator600blank tapeCS-123LINE INrecorded portionsetLINE OUTlevel meter 32 SFR01SFR02IC01IC02SFR03SFR04SFR12SFR11IC03IC05CN13Adjustment Location: DOLBY board (Component Side)CONTROL board (Component Side)SECTION