Sony-TC-TX101-Service-Manual电路原理图.pdf

Model Name Using Similar MechanismTC-TX313 Tape Transport Mechanism Type TC-TX101 MICROFILM AEP Model UK Model E Model Tourist Model SERVICE MANUAL Recording system4-track 2-channel stereo Frequency response (DOLBY NR OFF) 50 - 14,000 Hz ( 3 dB), using Sony TYPE I cassettes 50 - 15,000 Hz ( 3 dB), using Sony TYPE II cassettes DimensionsApprox. 142 125 235 mm (w / h / d) incl. projecting parts and controls MassApprox. 2 kg Design and specifications are subject to change without notice. This set is the optional stereo cassette deck that can be used only with section HCD-101 (AEP, UK model) / CMT-101 (E, Tourist model). STEREO CASSETTE DECK Dolby noise reduction manufactured under license from Dolby Labo- ratories Licensing Corporation. “DOLBY” and the double-D symbol a are trademarks of Dolby Laboratories Licensing Corporation. SPECIFICATIONS RadioFans.CN 收音机爱 好者资料库 2 TABLE OF CONTENTS 1. SERVICE NOTE 1-1. Supplying Power During Servicing . 3 2. GENERAL Parts and Controls. 4 3. TEST MODE 3-1. Checking the Items of Test Mode . 5 4. DISASSEMBLY 4-1. Top Cover . 6 4-2. Front Panel. 6 4-3. Mechanism Deck Section . 7 4-4. PC Board Section. 7 4-5. Main Board . 8 4-6. Amplifier Board. 8 4-7. Front Board. 9 4-8. Lever . 9 4-9. Tension Spring . 10 4-10.Housing. 10 4-11.Chassis . 11 4-12.Motor (A)/(B) Assy . 11 4-13.Head Plate. 12 4-14.Pinch Roller Assy . 12 4-15.Bracket (Head Unit). 13 5. MECHANICAL ADJUSTMENTS. 14 6. ELECTRICAL ADJUSTMENTS. 14 7. DIAGRAMS 7-1. Printed Wiring Board Motor Section. 17 7-2. Schematic Diagram Motor Section. 18 7-3. Printed Wiring Boards Main Section. 20 7-4. Schematic Diagram Main Section . 23 7-5. Printed Wiring Boards Front Panel Section. 27 7-6. Schematic Diagram Front Panel Section . 29 7-7. IC Pin Description . 31 8. EXPLODED VIEWS 8-1. Chassis Section . 33 8-2. PC Board Section. 34 8-3. TCM Assy Section. 35 9. ELECTRICAL PARTS LIST. 36 SAFETY-RELATED COMPONENT WARNING! COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE WITH MARK ! ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN 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, 909 PFJ-1 (Power Supply jig) POWER SW Connector Cable 17P (supplied with set) set Conversion Board (J-2501-144-A) SYSTEM CONTROL Power Function SECTION 1 SERVICE NOTE 1-1. SUPPLYING POWER DURING SERVICING This equipment cannot operate without using a separate power supply. 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 conversion board 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 2 GENERALThis section extracted from instruction manual. 5 SECTION 3 TEST MODE 3-1. CHECKING THE ITEMS OF TEST MODE The set allows you to check the items of the test mode although this may not be directly related with the adjustment. 1 Setting/Releasing the Test Mode: 1) Setting With power OFF, short between test pin 1 and pin 2 of TP1 on the MAIN board. (See page 16.) Then, turn power ON to enter the test mode. 2) Releasing Open between pin 1 and pin 2 of TP1. 2 Items of Test Mode 1) Memory Stop 1-1) 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 Play 2-1) In side A record mode, press the FWD Auto Play ( ” + 0 ) buttons simultaneously. The tape is rewind to the 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 to the start point of recording and REV played. 3) All LED Flickering When no tape is inserted, all LED indicators are flickering. 4) Aging Operation When tape with record erase preventing claw is inserted for both sides A and B, enter the aging operation start command by pressing p and CD SYNC simultaneously. The system will change the direction to one side and perform the following 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 from these operations. 6 SECTION 4 DISASSEMBLY Note : Follow the disassembly procedure in the numerical order given. 4-1. TOP COVER 4-2. FRONT PANEL 3 front panel 2 BVTP 2.6X8 4 BVTP 3X12 7 claws 8 CN06 9 sub panel 6 BVTP 3X8 5 BVTP 3X12 1 BVTP 3X8 4 top cover 1 screws (case 3 TP2) 3 BVTP 3X8 2 screws (case 3 TP2) 7 4-3. MECHANISM DECK SECTION 4-4. PC BOARD SECTION 3 BVTP 3X8 1 flex ble board 4 mechanism deck section 2 BVTP 2.6X6 3 BVTP 3X8 5 PC board section 2 BVTP 3X101 BVTP 3X10 4 CN05 8 4-5. MAIN BOARD 4-6. AMPLIFIER BOARD 1 BVTP 3X8 3 CN02 (Remove the solder.) 2 BVTP 3X8 7 MAIN board 5 CN07 4 CN03 (Remove the solder.) 6 CN04 1 BVTP 3X8 2 BVTP 3X8 3 AMPLIFIER board 9 4-7. FRONT BOARD 4-8. LEVER 1 BVTP 3X8 4 BVTP 3X8 2 BVTP 3X8 3 BVTP 3X8 5 FRONT board 6 PLAY button 7 8 5 9 6 Turn the loading motor and down the cassette holder. 2 tape guide (L) 1 BVTP 3X8 4 tape guide (R) 3 BVTP 3X8 10 4-9. TENSION SPRING 4-10. HOUSING 1 1 2 3 4 2 11 4-11. CHASSIS 4-12. MOTOR (A) / (B) ASSY 1 3 4 motor (B) assy 2 motor (A) assy 1 2 5 belt (A) 8 9 7 6 4 belt (B) 3 12 4-13. HEAD PLATE Note : On install, set the portions A and B. 4-14. PINCH ROLLER ASSY B 3 2 A 1 2 3 pinch roller assy (R) 1 4 5 6 pinch roller assy (F) pinch roller assy (F) pinch roller assy (R) 13 4-15. BRACKET (HEAD UNIT) 1 2 3bracket (head unit) 14 PRECAUTION 1.Clean the following parts with a denatured-alcohol-moistened swab : record/playback/erase headpinch roller rubber beltscapstan idlers 2.Demagnetize the record/playback/erase head with a head demagnetizer. (Do not bring the head demagnetizer close to the erase head.) 3.Do not use a magnetized screwdriver for the adjustments. 4.After the adjustments, apply suitable locking compound to the parts adjusted. 5.The adjustments should be performed with the rated power supply voltage unless otherwise noted. Torque Check ModeTorque MeterMeter Reading 35 80 g cm FWD CQ-102C (0.49 1.11 oz inch) FWD1 7 g cm Back tension(0.014 0.097 oz inch) 35 80 g cm REV CQ-102RC (0.49 1.11 oz inch) REV1 7 g cm Back tension(0.014 0.097 oz inch) more than 40 g cm FF, REWCQ-201B (more than 0.56 oz inch) SECTION 6 ELECTRICAL ADJUSTMENTS SECTION 5 MECHANICAL ADJUSTMENTS PRECAUTION 1.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 both L-CH and R-CH. Switch position DOLBY NR switch : OFF DIRECTION switch : A Standard Input Level Input terminalTAPE IN source impedance10 k input signal level0.49 V ( 4 dB) Standard Output Level Output terminalTAPE OUT (L-CH) load impedance47 k output signal level0.49 V ( 4 dB) Test Tape TypeSignalUsed for P-4-A10010 kHz, 10 dBAzimuth Adjustment P-4-L300315 Hz, 0 dBPB Level Adjustment WS-48A3 kHz, 0 dBTape Speed Adjustment 0 dB = 0.775 V 15 TAPE OUT L-CH : CN05 pin 2 (MAIN board) R-CH : CN05 pin 4 TAPE OUT L-CH : CN05 pin 2 (MAIN board) R-CH : CN05 pin 4 Record Bias Adjustment Setting : Set to the TEST mode. (See page 5.) Procedure : 1.Connection for recording : speed checker or frequency counter 47 k set test tape WS-48A (3 kHz, 0 dB) Tape Speed Adjustment Procedure : 1.Connect the speed checker or frequency counter as shown below and set FWD playback mode. 2.Adjust the capstan motor (M1) volume so that the reading on the speed checker or frequency counter falls within the following adjustment value. Adjustment Value : normal speed Speed checkerFrequency counter 3 to + 3 %2,910 to 3,090 Hz Confirm that the deviation between tape top and tape end is within 3%. Adjustment Location : Capstan motor (M1) volume (See page 16.) Sample Value of Wow and flutter W. RMS (JIS) within 0.3% (test tape : WS-48A) Playback Level Adjustment Procedure : 1.Connect the speed checker of frequency counter as shown below and set FWD playback mode. 2.Adjust SFR03 (L-CH) and SFR04 (R-CH) on AMPLIFIER board so that the reading on the level meter falls within the following adjustment value. Adjustment Value : TAPE OUT level Level difference between channels 4 2 dB (0.39 to 0.62 V)within 2 dB Confirm that the TAPE OUT level does not change even if Playback and Stop operation is repeated several times. Adjustment Location : AMPLIFIER board (See page 16.) level meter 47 k set test tape P-4-L300 (315 Hz, 0 dB) 2.Connection for playback : 3.In the connection of item 2, playback the signal recorded in the connection of item 1, confirm that the reading on the level meter falls 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 1 and 2. Adjustment Value :Difference of playback output of 10 kHz to playback output of 315 Hz : 0 0.5 dB Adjustment Location : AMPLIFIER board (See page 16.) Record Level Adjustment Setting : 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 the connection of item 1, confirm that the reading on the level meter falls 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 meter 47 k set recorded portion AF OSC attenuator 10 k set 600 blank tape CS-123 AF OSC attenuator 10 k set 600 blank tape CS-123 level meter 47 k set recorded portion TAPE IN L-CH : CN05 pin 1 (MAIN board) R-CH : CN05 pin 5 1) 315 Hz 2) 10 kHz 43.6 mV ( 25 dB) TAPE OUT L-CH : CN05 pin 2 (MAIN board) R-CH : CN05 pin 4 TAPE IN L-CH : CN05 pin 1 (MAIN board) R-CH : CN05 pin 5 315 Hz, 0.49 V ( 4 dB) TAPE OUT L-CH : CN05 pin 2 (MAIN board) R-CH : CN05 pin 4 16 IC02 IC03 CN05 TP1 TEST MODE TAPE OUT (L-CH : pin 2, R-CH : pin 4) TAPE IN (L-CH : pin 1, R-CH : pin 5) SFR04 PLAYBACK LEVEL ADJ (R-CH) SFR03 PLAYBACK LEVEL ADJ (L-CH) SFR01 RECORD BIAS ADJ (L-CH) SFR12 RECORD LEVEL ADJ (R-CH) SFR11 RECORD LEVEL ADJ (L-CH) SFR02 RECORD BIAS ADJ (R-CH) M1 CAPSTAN / REEL MOTOR TAPE SPEED ADJ M2 LOADING MOTOR MECHANISM DECK Adjustment 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 Description 1RVS 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 output 21M.REVOReel motor reverse direction rotation output 22H.SPEEDOTape speed control output 23L+OLoading motor forward direction rotation output 24LOLoading motor reverse direction rotation output 25AU BUS OUTOAU BUS signal output 26VSSGround 27F.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 input 30AU BUS INIAU BUS signal input 31AMS INIAMS signal input 32KEY 1IKey switch input 1 33KEY 0IKey switch input 0 34S.PLAY MODEIMechanism deck tape position detection signal input 35F.REELIMechanism deck FWD reel sensor detection signal input 36R.REELIMechan