Sony-TCM454VK-tape-sm 电路图 维修手册.pdf
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1、MICROFILM SERVICE MANUAL CASSETTE-CORDER US Model Canadian Model AEP Model (TCM-453V/454VK) E Model East European Model Chinese Model (TCM-453V) Model Name Using Similar MechanismNEW Tape Transport Mechanism TypeMT-453V-118 SPECIFICATIONS TCM-453V/454VK Photo: TCM-454VK Ver 1.1 1998. 3 RadioFans.CN
2、收音机爱 好者资料库 2 TABLE OF CONTENTS 1.SERVICING NOTES. 2 2.GENERAL Preparing a Power Source. 3 Recording . 3 Playing a Tape . 3 Maintenance . 3 3.DISASSEMBLY. 4 4.MECHANICAL ADJUSTMENTS. 7 5.ELECTRICAL ADJUSTMENTS. 8 6.DIAGRAMS 6-1.Block Diagram . 9 6-2.Printed Wiring Board . 11 6-3.Schematic Diagram . 1
3、3 7.EXPLODED VIEWS. 16 8.ELECTRICAL PARTS LIST. 19 In this set, the S102 (power) detects REC/PLAYBACK on. It is mounted on the MAIN board, and therefore the REC/PLAY- BACK on cannot be detected with the MAIN board removed. When making an operation check and voltage check of mechani- cal deck with th
4、e MAIN board removed, fix the S102 at turn on. MAIN BOARD (Conductor Side) ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT! LES COMPOSANTS IDENTIFIS PAR UNE MARQUE ! SUR LES DIAGRAMMES SCHMATIQUES ET LA LISTE DES PICES SONT CRITIQUES POUR LA SCURIT DE FONCTIONNEMENT. NE REMPLACER CES COM- POSANTS QUE
5、 PAR DES PICES SONY DONT LES NUMROS SONT DONNS DANS CE MANUEL OU DANS LES SUPPLMENTS PUBLIS PAR SONY. 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
6、WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB- LISHED BY SONY. SECTION 1 SERVICING NOTES IC101 S102 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. Ra
7、dioFans.CN 收音机爱 好者资料库 3 SECTION 2 GENERAL This section is extracted from instruction manual. RadioFans.CN 收音机爱 好者资料库 4 CABINET (REAR), CASSETTE LID SECTION 3 DISASSEMBLY Note: Follow the disassembly procedure in the numerical order given. This set can be disassembled in the order shown below. 9casse
8、tte lid 8cassette spring 5strap 3claw 3four claws 2screw (IB lock) 4cabinet (rear) 1three screws (B1.7 10) 7boss 7boss 6Remove the two solders speaker cords. SET CABINET (REAR), CASSETTE LID MAIN BOARD, MECHANISM DECK (MT-453V-118) BELT 5 MAIN BOARD, MECHANISM DECK (MT-453V-118) BELT 6claw 2screw (1
9、.7) 3screw (M1.4) 4MAIN board 7mechanism deck (MT-453V-118) 5three screws (IB lock) 1Remove the two solders electret condenser microphone (MIC901). 1Remove the two solders magnetic head (HRP901). 1Remove the two solders motor (M901). 1belt (capstan) 2belt (FR) 6 INSTALLATION MAIN BOARD On installati
10、on MAIN board, adjust to the S101 and the S102. ? screw (1.7) screw (M1.4) MAIN board S101 (REC/PB) S102 (POWER) lever (REC) 7 SECTION 4 MECHANICAL ADJUSTMENTS Tape Tension Measurement 1.Clean the following parts with a denatured-alcohol-moistened swab: record/playback headpinch roller erase headrub
11、ber belt capstanidlers 2.Demagnetize the record/playback head with a head demagne- tizer. (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 adj
12、ustments should be performed with the rated power supply voltage (2.5 V) unless otherwise noted. Torque Measurement ModeTorque MeterMeter Reading FWD more than 20 gcm CQ-102C (more than 0.28 ozinch) Forward Back Tension 0.5 - 3 gcm (0.007 - 0.04 ozinch) FF CQ-201B more than 50 gcm REW(more than 0.69
13、 ozinch) ModeTension MeterMeter Reading FWDCQ-403C more than 50 g (more than 1.76 oz) 8 SECTION 5 ELECTRICAL ADJUSTMENTS Precaution Supplied voltage: 2.5 V Switch and control position VOR switch (S104): OFF PAUSE switch (S105): OFF VOL (RV101): mechanical mid SPEED CONTROL (RV602): mechanical center
14、 Test Tape Record/Playback Head Azimuth Adjustment Procedure: Mode: playback 1.Turn the adjustment screw to obtain the maximum reading on level meter. Note: Several peaks may appear, but take the maximum. 2.After the adjustment, lock the adjustment screw with suitable locking compound. Adjustment Lo
15、cation: 0 dB=0.775 V Tape Speed Adjustment Procedure: Mode: playback 1.Play back WS-48A (tape end part) and adjust RV601 so that the frequency counter reading becomes 3,000 15 Hz. 2.Play back WS-48A tape the beginning and the end part, check that the frequency counter reading is within same standard
16、 of step1. Adjustment Location: MAIN BOARD (Conductor side) level meter test tape P-4-A063 (6.3 kHz, 10 dB) 10 k set EAR jack + frequency counter Standard tape for adjusting WS-48A (3 kHz, 0 dB) 10 k EAR jack set + IC101 RV601 adjustment screw TypeSignal Used for P-4-A0636.3 kHz, 10 dBhead azimuth a
17、djustment WS-48A3 kHz, 0 dBtape speed adjustment 15 16 IC Block Diagram IC101LA4168ML-TE-L SECTION 7 EXPLODED VIEWS Items marked “*” are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items. The mechanical parts with no reference
18、num- ber in the exploded views are not supplied. Accessories and packing materials are given in the last of the electrical parts list. NOTE: -XX and -X mean standardized parts, so they may have some difference from the original one. Color Indication of Appearance Parts Example: KNOB, BALANCE (WHITE)
19、 . . . (RED) Parts Color Cabinets Color Ref. No.Part No.DescriptionRemarkRef. No.Part No.DescriptionRemark (1) CABINET SECTION 13-318-382-31 SCREW (1.7), TAPPING 23-345-648-51 SCREW (M1.4), TOOTHED LOCK * 3A-3021-013-A MAIN BOARD, COMPLETE 43-924-741-01 TERMINAL, PLUS 53-924-750-01 TERMINAL, MINUS 6
20、3-924-744-01 SPRING(CLAW DETECTION),TENSION 73-924-743-01 CLAW, ERASING PROTECTION 83-334-565-41 SCREW (B1.7), TAPPING 93-924-745-01 BAR, GROUND 103-924-740-01 HOLDER, MICROPHONE 113-924-763-01 CUSHION (MICROPHONE) 123-924-742-01 KNOB (VOR) 134-969-980-21 SCREW (IB LOCK) 143-578-101-41 PLATE, ORNAME
21、NTAL 153-019-364-01 CABINET (FRONT) (453V) 153-019-364-11 CABINET (FRONT) (454VK) 163-924-739-01 SPRING, CASSETTE 173-018-520-01 LID, CASSETTE 184-017-441-01 CUSHION (B) * 193-924-757-01 BRACKET (SPEAKER) 203-924-761-01 STRAP 21X-3375-808-1 LID ASSY, BATTERY CASE 223-924-747-11 KNOB (PAUSE) 233-019-
22、597-01 CABINET (REAR) 243-334-565-11 SCREW (B1.7X10), TAPPING 253-939-590-44 SCREW (IB LOCK) 263-831-441-99 SPACER, KNOB * 273-592-351-01 PAPER, VIBRATION PROOF (B) 283-831-441-11 CUSHION, CABINET UPPER 10X7X0.5 293-018-521-01 WINDOW (CASSETTE) MIC901 1-542-136-11 MICROPHONE, ELECTRET CONDEDSER (MIC
23、) SP9011-505-838-11 SPEAKER (3.6CM) 28 13 12 14 15 16 27 22 6 7 10 11 MIC901 MT-453V-118 9 8 5 4 1 26 2 26 26 3 25 24 23 21 20 1 18 19 26 17 SP901 29 Ver 1.1 1998. 3 17 Ref. No.Part No.DescriptionRemarkRef. No.Part No.DescriptionRemark (2) MECHANISM DECK SECTION-1 (MT-453V-118) 51X-3370-386-1 PINCH
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