Sony-TCM323-tape-sm 电路图 维修手册.pdf
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1、SERVICE MANUAL CASSETTE-CORDER US Model Canadian Model AEP Model E Model Model Name Using Similar MechanismNEW Tape Transport Mechanism TypeMT-323-118 SPECIFICATIONS TCM-323 Ver 1.2 2004.03 9-923-304-12Sony Corporation 2004C05-1Personal Audio Company 2004.03Published by Sony Engineering Corporation
2、RadioFans.CN 收音机爱 好者资料库 2 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 the MAIN board removed, fix
3、 the S102 at turn on. SECTION 1 SERVICING NOTES 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. MAIN BOARD (Conductor Side) IC101 IC102 IC601 TABLE OF CONTENTS 1.SERVICING NOTES. 2 2.GENERAL.
4、3 3.DISASSEMBLY. 4 4.MECHANICAL ADJUSTMENTS. 7 5.ELECTRICAL ADJUSTMENTS. 8 6.DIAGRAMS 6-1.Block Diagram . 9 6-2.Schematic Diagram . 11 6-3.Printed Wiring Board . 13 7.EXPLODED VIEWS. 14 8.ELECTRICAL PARTS LIST. 17 RadioFans.CN 收音机爱 好者资料库 3 SECTION 2 GENERAL This section is extracted from instruction
5、 manual. RadioFans.CN 收音机爱 好者资料库 4 CABINET (REAR), CASSETTE LID Note: Follow the disassembly procedure in the numerical order given. SECTION 3 DISASSEMBLY This set can be disassembled in the order shown below. 9cassette lid 8cassette spring 5strap 3claw 3four claws 2screw (IB lock) 4cabinet (rear) 1
6、three screws (B1.7 9) 7boss 7boss 6Remove the two solders speaker cords. SET CABINET (REAR), CASSETTE LID MAIN BOARD, MECHANISM DECK (MT-323-118) BELT 5 MAIN BOARD, MECHANISM DECK (MT-323-118) BELT 6claw 2screw (1.7) 3screw (M1.4) 4MAIN board 7mechanism deck (MT-323-118) 5three screws (IB lock) 1Rem
7、ove 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 installation MAIN board, adjust to the S101 and the S102. screw (1.7) screw (M1.4) MAIN board S101
8、 (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 headrubber belt capstanidlers 2.Demagnetize the record/playback head with a head demagne- tizer.
9、(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 (2.5 V) unless otherwise
10、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 ozinch) ModeTension MeterMeter Reading FWDCQ-403C more than 50 g (more than 1.76 oz) 8 SE
11、CTION 5 ELECTRICAL ADJUSTMENTS Precaution Supplied voltage: 2.5 V Switch and control position PAUSE switch (S105): OFF VOL (RV101): mechanical mid Test Tape Record/Playback Head Azimuth Adjustment Procedure: Mode: playback 1.Turn the adjustment screw to obtain the maximum reading on level meter. Not
12、e: Several peaks may appear, but take the maximum. 2.After the adjustment, lock the adjustment screw with suitable locking compound. Adjustment Location: 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 rea
13、ding 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 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
14、 tape for adjusting WS-48A (3 kHz, 0 dB) 10 k EAR jack set + TypeSignal Used for P-4-A0636.3 kHz, 10 dBhead azimuth adjustment WS-48A3 kHz, 0 dBtape speed adjustment IC101 IC601 RV601 adjustment screw Ver 1.2 Ver 1.2 Ver 1.2 14 SECTION 7 EXPLODED VIEWS Items marked “*” are not stocked since they are
15、 seldom required for routine service. Some delay should be anticipated when ordering these items. The mechanical parts with no reference 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 standa
16、rdized parts, so they may have some difference from the original one. Color Indication of Appearance Parts Example: KNOB, BALANCE (WHITE) . . . (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 2
17、3-345-648-01 SCREW (M1.4), TOOTHED LOCK * 3A-3021-006-A MAIN BOARD, COMPLETE 43-924-741-01 TERMINAL, PLUS 53-936-973-01 TERMINAL, MINUS 63-924-744-01 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 HO
18、LDER, MICROPHONE 113-924-763-01 CUSHION (MICROPHONE) 123-831-441-11 CUSHION, CABINET UPPER 10X7X0.5 134-969-980-21 SCREW (IB LOCK) 143-578-101-31 PLATE, ORNAMENTAL 153-019-363-01 CABINET (FRONT) 163-924-739-01 SPRING, CASSETTE 17X-3375-536-1 LID SUB ASSY, CASSETTE 184-017-441-01 CUSHION (B) * 193-92
19、4-757-01 BRACKET (SPEAKER) 21X-3375-808-1 LID ASSY, BATTERY CASE 223-924-747-11 KNOB (PAUSE) 233-019-442-01 CABINET (REAR) 243-318-203-92 SCREW (B1.7X9), TAPPING 253-366-890-51 SCREW (IB LOCK) 263-831-441-99 SPACER, KNOB * 273-592-351-01 PAPER, VIBRATION PROOF (B) MIC901 1-542-136-11 MICROPHONE, ELE
20、CTRET CONDEDSER (MIC) SP9011-544-657-11 SPEAKER (3.6CM) 13 12 14 15 16 27 22 6 7 10 11 MIC901 MT-323-118 9 8 5 4 1 26 2 26 26 3 25 24 23 21 1 18 19 26 17 SP901 Ver 1.1 15 51X-3370-386-1 PINCH ROLLER ASSY 523-925-146-11 BUTTON (FF) () 533-925-147-01 BUTTON (REW) (0) 543-925-148-11 BUTTON (PLAY) () 55
21、3-925-145-01 BUTTON (REC) (r) 563-924-738-01 BUTTON (STOP) (p) 573-703-925-21 SCREW (M1.4) 583-924-625-01 LEVER (HEAD) 593-924-645-01 BRACKET (HEAD) 603-924-685-01 SPRING (AZIMUTH), COMPRESSION 613-704-197-91 SCREW (IB LOCK) 623-375-135-01 SCREW (1.4), SPECIAL 633-376-177-01 SCREW (M1.4X3.8) 643-925
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