Sony-TCTX101-tape-sm 维修电路原理图.pdf

Model Name Using Similar MechanismTC-TX313Tape Transport Mechanism TypeTC-TX101MICROFILMAEP ModelUK ModelE ModelTourist ModelSERVICE MANUALRecording system4-track 2-channel stereoFrequency response (DOLBY NR OFF)50 - 14,000 Hz ( 3 dB),using Sony TYPE Icassettes50 - 15,000 Hz ( 3 dB),using Sony TYPE IIcassettesDimensionsApprox. 142 125 235mm (w / h / d)incl. projecting parts andcontrolsMassApprox. 2 kgDesign and specifications are subject to changewithout notice. This set is the optional stereo cassettedeck that can be used only with sectionHCD-101 (AEP, UK model) /CMT-101 (E, Tourist model).STEREO CASSETTE DECKDolby noise reduction manufactured under license from Dolby Labo-ratories Licensing Corporation.“DOLBY” and the double-D symbol a are trademarks of DolbyLaboratories Licensing Corporation.SPECIFICATIONSRadioFans.CN 收音机爱 好者资料库 2 TABLE OF CONTENTS1. SERVICE NOTE1-1. Supplying Power During Servicing . 32. GENERALParts and Controls. 43. TEST MODE3-1. Checking the Items of Test Mode . 54. DISASSEMBLY4-1. Top Cover . 64-2. Front Panel. 64-3. Mechanism Deck Section . 74-4. PC Board Section. 74-5. Main Board . 84-6. Amplifier Board. 84-7. Front Board. 94-8. Lever . 94-9. Tension Spring . 104-10.Housing. 104-11.Chassis . 114-12.Motor (A)/(B) Assy . 114-13.Head Plate. 124-14.Pinch Roller Assy . 124-15.Bracket (Head Unit). 135. MECHANICAL ADJUSTMENTS. 146. ELECTRICAL ADJUSTMENTS. 147. DIAGRAMS7-1. Printed Wiring Board Motor Section. 177-2. Schematic Diagram Motor Section. 187-3. Printed Wiring Boards Main Section. 207-4. Schematic Diagram Main Section . 237-5. Printed Wiring Boards Front Panel Section. 277-6. Schematic Diagram Front Panel Section . 297-7. IC Pin Description . 318. EXPLODED VIEWS8-1. Chassis Section . 338-2. PC Board Section. 348-3. TCM Assy Section. 359. ELECTRICAL PARTS LIST. 36SAFETY-RELATED COMPONENT WARNING!COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINEWITH MARK ! ON THE SCHEMATIC DIAGRAMS AND INTHE PARTS LIST ARE CRITICAL TO SAFE OPERATION.REPLACE THESE COMPONENTS WITH SONY PARTS WHOSEPART NUMBERS APPEAR AS SHOWN IN THIS MANUAL ORIN SUPPLEMENTS PUBLISHED 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.RadioFans.CN 收音机爱 好者资料库 3 P707, 909PFJ-1(Power Supply jig)POWER SWConnector Cable 17P(supplied with set)setConversion Board(J-2501-144-A)SYSTEM CONTROLPower FunctionSECTION 1SERVICE NOTE1-1. SUPPLYING POWER DURING SERVICINGThis equipment cannot operate without using a separate powersupply. Connect this set to the HCD-101.To apply power set the SYSTEM POWER switch of HCD-101.When other units are not available use the PFJ-1 power supply jig.When using the PFJ-1, press the POWER switch of the conversionboard to turn on the power. Connection Diagram* When checking the recording function of TC-TX101, select any function other than TAPE using the Function key of the conversion board before check. 4 SECTION 2GENERALThis section extracted frominstruction manual. 5 SECTION 3TEST MODE3-1. CHECKING THE ITEMS OF TEST MODEThe set allows you to check the items of the test mode although thismay not be directly related with the adjustment.1 Setting/Releasing the Test Mode:1) SettingWith power OFF, short between test pin 1 and pin 2 ofTP1 on the MAIN board. (See page 16.)Then, turn power ON to enter the test mode.2) ReleasingOpen between pin 1 and pin 2 of TP1.2 Items of Test Mode1) Memory Stop1-1) In side A record mode, press the REW ( 0 ) button.The tape is rewind to the start point of recording and stopped.1-2) In side B record mode, press the FF ( ) ) button.The tape is rewind to the start point of recording and stopped.2) Memory Play2-1) In side A record mode, press the FWD Auto Play( ” + 0 ) buttons simultaneously. The tape is rewind tothe start point of recording and FWD played.2-2) In side B record mode, press the REV Auto Play( “ + ) ) buttons simultaneously. The tape is rewind tothe start point of recording and REV played.3) All LED FlickeringWhen no tape is inserted, all LED indicators are flickering.4) Aging OperationWhen tape with record erase preventing claw is inserted forboth sides A and B, enter the aging operation start commandby pressing p and CD SYNC simultaneously. The systemwill change the direction to one side and perform thefollowing operations:1 Rewind in REW mode until side A of tape is stopped.2 Playback tape in FWD mode for 1 minute.3 Pause mode.4 Record tape for 3 minutes.5 Forward tape in FF mode to the end of side A of tape.6 Shut off and switch to side B.7 Playback tape in REV mode for 1 minute.8 Pause mode.9 Record tape for 3 minutes.! Forward tape in FF mode to the end of side B of tape.! Shut off and switch to side A.! Repeat the procedure from 2 to !.! Pressing the STOP ( p ) button will release the set fromthese operations. 6 SECTION 4DISASSEMBLYNote : Follow the disassembly procedure in the numerical order given.4-1. TOP COVER4-2. FRONT PANEL3 front panel2 BVTP 2.6X84 BVTP 3X127 claws8 CN069 sub panel6 BVTP 3X85 BVTP 3X121 BVTP 3X84 top cover1 screws (case 3 TP2)3 BVTP 3X82 screws (case 3 TP2) 7 4-3. MECHANISM DECK SECTION4-4. PC BOARD SECTION3 BVTP 3X81 flex ble board4 mechanism deck section2 BVTP 2.6X63 BVTP 3X85 PC board section2 BVTP 3X101 BVTP 3X104 CN05 8 4-5. MAIN BOARD4-6. AMPLIFIER BOARD1 BVTP 3X83 CN02 (Remove the solder.)2 BVTP 3X87 MAIN board5 CN074 CN03 (Remove the solder.)6 CN041 BVTP 3X82 BVTP 3X83 AMPLIFIER board 9 4-7. FRONT BOARD4-8. LEVER1 BVTP 3X84 BVTP 3X82 BVTP 3X83 BVTP 3X85 FRONT board6 PLAY button78596 Turn the loading motor and down the cassette holder.2 tape guide (L)1 BVTP 3X84 tape guide (R)3 BVTP 3X8 10 4-9. TENSION SPRING4-10. HOUSING112342 11 4-11. CHASSIS4-12. MOTOR (A) / (B) ASSY134 motor (B) assy2 motor (A) assy125 belt (A)89764 belt (B)3 12 4-13. HEAD PLATENote : On install, set the portions A and B.4-14. PINCH ROLLER ASSYB32A123 pinch roller assy (R)1456 pinch roller assy (F) pinch roller assy (F) pinch roller assy (R) 13 4-15. BRACKET (HEAD UNIT)123bracket (head unit) 14 PRECAUTION1.Clean the following parts with a denatured-alcohol-moistenedswab :record/playback/erase headpinch rollerrubber beltscapstanidlers2.Demagnetize the record/playback/erase head with a headdemagnetizer. (Do not bring the head demagnetizer close to theerase head.)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 powersupply voltage unless otherwise noted.Torque CheckModeTorque MeterMeter Reading35 80 g cmFWDCQ-102C(0.49 1.11 oz inch)FWD1 7 g cmBack tension(0.014 0.097 oz inch)35 80 g cmREVCQ-102RC(0.49 1.11 oz inch)REV1 7 g cmBack tension(0.014 0.097 oz inch)more than 40 g cmFF, REWCQ-201B(more than 0.56 oz inch)SECTION 6ELECTRICAL ADJUSTMENTSSECTION 5MECHANICAL ADJUSTMENTSPRECAUTION1.The adjustment should be performed in the publication.(Be sure to male playback adjustment at first.)2.The adjustments and measurement should be performed for bothL-CH and R-CH. Switch positionDOLBY NR switch : OFFDIRECTION switch : AStandard Input LevelInput terminalTAPE INsource impedance10 kinput signal level0.49 V ( 4 dB)Standard Output LevelOutput terminalTAPE OUT (L-CH)load impedance47 koutput signal level0.49 V ( 4 dB)Test TapeTypeSignalUsed forP-4-A10010 kHz, 10 dBAzimuth AdjustmentP-4-L300315 Hz, 0 dBPB Level AdjustmentWS-48A3 kHz, 0 dBTape Speed Adjustment0 dB = 0.775 V 15 TAPE OUT L-CH : CN05 pin 2(MAIN board) R-CH : CN05 pin 4TAPE OUT L-CH : CN05 pin 2(MAIN board) R-CH : CN05 pin 4Record Bias AdjustmentSetting : Set to the TEST mode. (See page 5.)Procedure :1.Connection for recording :speed checkerorfrequency counter47 k settest tapeWS-48A(3 kHz, 0 dB)Tape Speed AdjustmentProcedure :1.Connect the speed checker or frequency counter as shown belowand set FWD playback mode.2.Adjust the capstan motor (M1) volume so that the reading on thespeed checker or frequency counter falls within the followingadjustment value.Adjustment Value : normal speedSpeed checkerFrequency counter 3 to + 3 %2,910 to 3,090 HzConfirm that the deviation between tape top and tape end is within3%.Adjustment Location : Capstan motor (M1) volume (See page 16.)Sample Value of Wow and flutterW. RMS (JIS) within 0.3%(test tape : WS-48A)Playback Level AdjustmentProcedure :1.Connect the speed checker of frequency counter as shown belowand set FWD playback mode.2.Adjust SFR03 (L-CH) and SFR04 (R-CH) on AMPLIFIER boardso that the reading on the level meter falls within the followingadjustment value.Adjustment Value :TAPE OUT levelLevel differencebetween channels 4 2 dB (0.39 to 0.62 V)within 2 dBConfirm that the TAPE OUT level does not change even if Playbackand Stop operation is repeated several times.Adjustment Location : AMPLIFIER board (See page 16.)level meter47 k settest tapeP-4-L300(315 Hz, 0 dB)2.Connection for playback :3.In the connection of item 2, playback the signal recorded in theconnection of item 1, confirm that the reading on the level meterfalls within the following adjustment value.4.If these levels do not adjustment value, adjust SFR01 (L-CH)and SFR02 (R-CH) on AMPLIFIER board to repeat items 1and 2.Adjustment Value :Difference of playback output of 10 kHz toplayback output of 315 Hz : 0 0.5 dBAdjustment Location : AMPLIFIER board (See page 16.)Record Level AdjustmentSetting : Set to the TEST mode. (See page 5.)Procedure :1.Connection for recording :2.Connection for playback :3.In the connection of item 2, playback the signal recorded in theconnection of item 1, confirm that the reading on the level meterfalls within the following adjustment value.4.If these levels do not adjustment value, adjust SFR11 (L-CH)and SFR12 (R-CH) on MAIN board to repeat items 1 and 2.Adjustment Value :Playback output level of 315 Hz : 4 2 dB (0.39 to 0.62 V)Adjustment Location : MAIN board (See page 16.)level meter47 k setrecorded portionAF OSCattenuator10 k set600 blank tapeCS-123AF OSCattenuator10 k set600 blank tapeCS-123level meter47 k setrecorded portionTAPE IN L-CH : CN05 pin 1(MAIN board) R-CH : CN05 pin 51) 315 Hz2) 10 kHz43.6 mV ( 25 dB)TAPE OUT L-CH : CN05 pin 2(MAIN board) R-CH : CN05 pin 4TAPE IN L-CH : CN05 pin 1(MAIN board) R-CH : CN05 pin 5315 Hz, 0.49 V ( 4 dB)TAPE OUT L-CH : CN05 pin 2(MAIN board) R-CH : CN05 pin 4 16 IC02IC03CN05TP1TEST MODETAPE OUT (L-CH : pin 2, R-CH : pin 4)TAPE IN (L-CH : pin 1, R-CH : pin 5)SFR04PLAYBACKLEVEL ADJ(R-CH)SFR03PLAYBACKLEVEL ADJ(L-CH)SFR01RECORD BIASADJ (L-CH)SFR12RECORD LEVELADJ (R-CH)SFR11RECORD LEVELADJ (L-CH)SFR02RECORD BIASADJ (R-CH)M1CAPSTAN/ REELMOTORTAPESPEEDADJM2LOADINGMOTORMECHANISMDECKAdjustment Location : MAIN board (component side) AMPLIFIER board (component side) 31 7-7. IC PIN DESCRIPTION IC04 PD75108GF-N14-3BE (SYSTEM CONTROL)Pin No.Pin NameI/OPin Description1RVS REC RELAYORVS REC relay control output (Not used in this set.)2FWD REC RELAYOFWD REC relay control output (Not used in this set.)3RVS PLAY RELAYORVS PLAY relay control output (Not used in this set.)4FWD PLAY RELAYOFWD PLAY relay control output (Not used in this set.)5POWER OUTOPower output (Not used in this set.)6AMS OUTOAMS gain control output (Not used in this set.)7RESETIReset input (L : Reset)8XTALOscillator circuit (4.19 MHz)9XTALOscillator circuit (4.19 MHz)10NR OUTONoise reduction signal output (Not used in this set.)11REC/PBOREC/PB select output (H : REC, L : PB)12F/RORVS/FWD select output (H : RVS, L : FWD) (Not used in this set.)13BIASOBias oscillation control output (H : ON, L : OFF)14LINE MUTEOLine mute control output (H : OFF, L : ON)15PB.MUTEOPB mute control output (H : OFF, L : ON)16REC.MUTEOREC mute control output (H : OFF, L : ON)17TAPE 4OREC equalizer select output (H : METAL) (Not used in this set.)18TAPE 2OREC equalizer select output (H : CrO2)19TAPE 1OREC equalizer select output (H : NORMAL)20M.FWDOReel motor forward direction rotation output21M.REVOReel motor reverse direction rotation output22H.SPEEDOTape speed control output23L+OLoading motor forward direction rotation output24LOLoading motor reverse direction rotation output25AU BUS OUTOAU BUS signal output26VSSGround27F.RECIMechanism deck FWD REC PROOF claw detection signal input (H : REC inhibit)28R.RECIMechanism deck RVS REC PROOF claw detection signal input (H : REC inhibit)29PACK INILoading detection signal input30AU BUS INIAU BUS signal input31AMS INIAMS signal input32KEY 1IKey switch input 133KEY 0IKey switch input 034S.PLAY MODEIMechanism deck tape position detection signal input35F.REELIMechanism deck FWD reel sensor detection signal input36R.REELIMechanism deck RVS reel sensor detection signal input37MODE SELIMode select input (Fixed at “H” in this set.)38CrO2IMechanism deck CrO2 switch input39TAPE INIMechanism deck HALF switch input40TEST PINIInput for test mode. (L : Test mode)41, 42NCIConnect to Ground in this set.43NCONot used in this set.44POWER DOWN INIPower detection input45NR.LEDONR LED output (Not used in this set.)46PB.LEDOPLAYBACK LED output (Not used in this set.)47TAPE.LEDOTape indicator LED output48CD SYC.LEDOCD SYNC LED output49REC.LEDOREC LED output50.LEDO) LED output51.LEDO” LED output54.LEDO“ LED output55POWER(GRN)LEDOPOWER LED output (Not used in this set.)56POWER(RED)LEDOPOWER LED output (Not used in this set.)57NCFixed at “H” in this set.58VDDPower supply pin59 61NCNot used in this set.62REC/PBOREC/PB select output (H : REC, L : PB)63, 64NCNot used in this set. 33 Ref. No.Part No.DescriptionRemarkRef. No.Part No.DescriptionRemarkSECTION 8EXPLODED VIEWSNNNOTE: 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. -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 Accessories and packing materials aregiven in the last of this parts list.8-1. CHASSIS SECTION AbbreviationG: German modelSP: Singapore modelMY : Malaysia modelHK : Hong Kong modelJE: Tourist model1222024436195720222222891011202020121413151919161721232318not supplied* 13-021-633-01TOP COVER23-363-099-51SCREW (CASE 3 TP2)33-021-619-01FRONT PANEL44-942-636-21EMBLEM (No.3.5), SONY53-021-632-01FRONT WINDOW63-021-623-01SUB PANEL73-021-634-01FOOT (FRONT)83-021-622-01EJECT BUTTON* 93-021-627-01LED PLATE* 103-021-626-01LED HOLDER113-021-624-01SLIDE KNOB* 12A-2007-755-A FRONT BOARD, COMPLETE133-021-620-01DOOR CASSETTE143-020-419-01DOOR SPRING153-021-621-01PLAY BUTTON163-020-399-01FOOT (REAR)* 173-021-639-01CUSHION* 183-021-643-01BACK PLATE (AEP,UK,G)* 183-022-375-01BACK PLATE (SP,MY,HK,JE)197-685-647-79SCREW +BVTP 3X10 TYPE2 N-S207-685-646-79SCREW +BVTP 3X8 TYPE2 N-S211-782-804-11CORD (WITH CONNECTOR)227-685-648-79SCREW +BVTP 3X12 TYPE2 N-S237-685-645-79SCREW +BVTP 3X6 TYPE2 N-S24