Sony-TCM343-tape-sm 电路图 维修手册.pdf

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1、TCM-343 E Model Chinese Model SERVICE MANUAL CASSETTE-CORDER SPECIFICATIONS Model Name Using Similar MechanismNEW Tape Transport Mechanism TypeMT-323-118 Recording system 2-track 1 channel monaural Frequency range 250 - 6 300 Hz Speaker Approx. 3.6 cm (1 7 / 16 in.) dia. Power output (at 10% harmoni

2、c distortion) 250 mW Output Earphone jack (minijack) for 8 - 300 earphone Power requirements 3 V DC batteries R6 (AA) 2 External DC 3 V power sources Dimensions (w/h/d) (incl. projecting parts and controls) Approx. 112 36.6 90.3 mm (4 1 2 1 1 2 3 5 8 in.) Mass (not incl. batteries) Approx. 180 g (6.

3、4 oz.) Design and specifications are subject to change without notice. Ver 1.0 2000. 11 RadioFans.CN 收音机爱 好者资料库 2 Notes on chip component replacement Never reuse a disconnected chip component. Notice that the minus side of a tantalum capacitor may be damaged by heat. Flexible Circuit Board Repairing

4、 Keep the temperature of soldering iron around 270C during repairing. Do not touch the soldering iron on the same conductor of the circuit board (within 3 times). Be careful not to apply force on the conductor when soldering or unsoldering. TABLE OF CONTENTS 1. GENERAL 2 2. DISASSEMBLY 2-1. Lid Sub

5、Assy, Cassette3 2-2. Main Board, Mechanism Deck 3 2-3. Belt 4 2-4. “Head, Magnetic”, Pinch Roller 4 3. MECHANICAL ADJUSTMENT 5 4. ELECTRICAL ADJUSTMENT 5 5. DIAGRAMS 6-1. IC Block Diagrams 6 6-2. Block Diagram 7 6-3. Schematic Diagram 9 6-4. Printed Wiring Board 11 6. EXPLODED VIEWS 6-1. Cabinet Sec

6、tion 13 6-2. Mechanism Deck Section-1 (MT-323-118) 14 6-3. Mechanism Deck Section-2 (MT-323-118) 15 7. ELECTRICAL PARTS LIST 16 SECTION 1 GENERAL This section is extracted from instruction manual. VOL M FF/CUE x STOP m REW/REVIEW PAUSE . N PLAY EAR z REC x STOP m REW/ REVIEW PAUSE . Built-in mic Mic

7、rfono incorporado Microfone incorporado BATT RadioFans.CN 收音机爱 好者资料库 3 SECTION 2 DISASSEMBLY Note :Follow the disassembly procedure in the numerical order given. The equipment can be removed using the following procedure. 2-1. LID SUB ASSY, CASSETTE 2-2. MAIN BOARD, MECHANISM DECK 4two cords(SP901)

8、6spring, cassette 5lid sub assy, cassette four claws claw 3cabinet (rear) 2screw (IB LOCK) 1three screws (B1.7 9) 8mechanism deck 6main board 4cord (HRP901) 5two cords (MIC901) 3two cords (M901) 1screw (1.7) 2screw (M1.4) 7three screws (IB LOCK) Lid Sub Assy, CassetteMain Board, Mechanism DeckBeltSe

9、t “Head, Magnetic”, Pinch Roller RadioFans.CN 收音机爱 好者资料库 4 2-3. BELT 1belt (capstan) 2belt (fr) screw (M1.4) screw (1.7) main board S101 (REC) REC lever 2-4. “HEAD, MAGNETIC”, PINCH ROLLER INSTALLATION MAIN BOARD On installation MAIN board, adjust to the S101 and the REC lever. 8screw (M1.4) 6head,

10、magnetic (HRP901) 3pinch roller 2 4screw (1.4) 5screw (M1.4 3.8) 9head, magnetic (HE901) 1lever (pinch roller) 7spring (azimuth), compression 5 SECTION 3 MECHANICAL ADJUSTMENT PRECAUTION 1.Clean the following parts with a denatured-alcohol-moistened swab : playback headpinch roller capstanrubber bel

11、t 2.Demagnetize the playback head with a head demagnetizer. 3.Do not use a magnetized screwdriver for the adjustments. 4.The adjustments should be performed with the rated power supply voltage (DC 3.0 V) unless otherwise noted. Torque Measurement SECTION 4 ELECTRICAL ADJUSTMENT PRECAUTION Supplied v

12、oltage: 3.0 V Switch and control position VOL control: mechanical mid PAUSE switch : OFF Test tape REC/PB Head Azimuth Adjustment Procedure : 1.Model : playback 2.Turn the adjustment screw to obtain the maximum readig on level meter. Note : Several peaks may appear, but take the maximum. Adjustment

13、Location : Tape Speed Adjustment Procedure : 1.Playback WS-48A (tape center part) in the FWD state and adjust RV601 so that the frequency counter reading becomes 3,000 Hz. Specification Value : 2.Check that frequency counter reading is within 2% of reading of step 1. Digital frequency counter 2,970

14、to 3,030 Hz Type WS-48A P-4-A063 Signal 3 kHz, 0 dB 6.3 kHz, - 10dB Used for tape speed adjustment head azimuth adjustment ModeTorque MeterMeter Reading more than 1.96 mN m (more than 20 g cm) (more than 0.28 oz inch) more than 4.90 mN m (more than 50 g cm) (more than 0.69 oz inch) 0.05 0.29 mN m (0

15、.5 3 g cm) (0.007 0.04 oz inch) FWD CQ-102C FWD back tension FF, REWCQ-201B + test tape WS-48A (3 kHz, 0 dB) set EAR jack (J102) 32 frequency counter RV601 Adjustment Location : main board (conductor side) + test tape P-4-A063 (6.3 kHz, -10 dB) set EAR jack (J102) 10 k level meter adjustment screw 6

16、 SECTION 5 DIAGRAMS Note on Schematic Diagram: All capacitors are in F unless otherwise noted. pF: F 50 WV or less are not indicated except for electrolytics and tantalums. All resistors are in and 1/4 W or less unless otherwise specified. f: internal component. C : panel designation. A : B+ Line. H

17、 : adjustment for repair. Power voltage is dc 3 V and fed with regulated dc power supply from battery terminal. Voltages and waveforms are dc with respect to ground under no- signal (detuned) conditions. no mark : PLAY () : REC Voltages are taken with a VOM (Input impedance 10 M). Voltage variations

18、 may be noted due to normal production toler- ances. Voltage variations may be noted due to normal production toler- ances. Signal path. E: PB a: REC F: MIC Note on Printed Wiring Board: Y : parts extracted from the conductor side. b : Pattern from the side which enables seeing. 5-1.IC BLOCK DIAGRAM

19、S IC601 NJM2606AM-TE2 GND NC NC V+ REFERENCE VOLTAGE V CONTROL NC V SENSE V OUT 1234 5678 TCM-343 5-2. BLOCK DIAGRAM 7 8 Signal Path : PB : REC : MICK + + + + + 15 1 16 3 6 8 4 3 4 5 6 9 14 11 M RV601 TAPE SPEED M901 (LOADING) D401 (BATT) IC601 SERVO REF VOLTAGE +B S601 PAUSE +B DRY BATTERY SIZE AA

20、2PCS 3V S102 (POWER SW) ALC IC101 PRE/POWER AMP, ALC Q101 SWITCH HRP901 HE901 MIC901 S101 (1/4) (PB REC) S101 (2/4) (PB REC) S101 (3/4) (PB REC) S101 (4/4) (PB REC) RV101 VOL SP901 (SPEAKER) J102 EAR (PB/REC) (ERASE) MIC + CN101 DC IN 3V 16 HEAD OFF ON K K TCM-343 5-3. SCHEMATIC DIAGRAM 9 10 See pag

21、e 6 for IC Block Diagrams. TCM-343 5-4. PRINTED WIRING BOARD Ref. No.Location D401F-11 IC101D-8 IC601C-5 Q101E-8 Semiconductor Location 11 12 16 12 A B C D E F G 3456789101112 SECTION 6 EXPLODED VIEWS 6-2. MECHANISM DECK SECTION-1 (MT-323-118) Ref. No.Part No.DescriptionRemarksRef. No.Part No.Descri

22、ptionRemarks 6-1. CABINET SECTION Ref. No.Part No.DescriptionRemarksRef. No.Part No.DescriptionRemarks 13 14 1 223 23 3 4 5 6 MT-323-118 7 8 9 MIC901 10 11 12 13 14 15 16 SP901 17 1 17 1 19 23 23 20 24 25 21 22 18 not supplied 62 63 61 65 68 69 74 75 M901 70 76 78 71 73 72 51 not supplied 54 53 52 5

23、5 56 57 HE901 67 66 HRP901 5977 64 58 60 NOTE: -XX, -X mean standardized parts, so they may have some differences from the original one. Items marked “*” are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items. The mechanical par

24、ts with no reference number in the exploded views are not supplied. Accessories and packing materials are given in the last of this parts list. 13-318-382-31SCREW (1.7), TAPPING 23-345-648-01SCREW (M1.4), TOOTHED LOCK * 3A-3021-355-A MAIN BOARD, COMPLETE 43-924-741-01TERMINAL, PLUS 53-936-973-01TERM

25、INAL, MINUS 63-334-565-41SCREW (B1.7), TAPPING 73-924-745-01BAR, GROUND 83-924-740-01HOLDER, MICROPHONE 93-924-763-01CUSHION (MICROPHONE) 103-924-743-01CLAW, ERASING PROTECTION 113-924-744-01SPRING(CLAW DETECTION),TENSION 123-939-590-26SCREW (IB LOCK) 133-578-101-31PLATE, ORNAMENTAL 143-019-363-51CA

26、BINET (FRONT) 153-924-739-01SPRING, CASSETTE 16X-3379-563-1LID SUB ASSY, CASSETTE * 173-924-757-01BRACKET (SPEAKER) 18X-3375-808-1LID BLOCK ASSY, BATTERY CASE 194-017-441-01CUSHION (B) 203-924-747-11KNOB (PAUSE) 213-318-203-92SCREW (B1.7X9), TAPPING 223-019-442-02CABINET (REAR) 233-831-441-99SPACER,

27、 KNOB 243-831-441-11CUSHION (B) 253-366-890-51SCREW (IB LOCK) MIC901 1-542-136-11MICROPHONE, ELECTRET CONDEDSER SP9011-529-188-11SPEAKER (3.6cm) 51X-3377-250-1LEVER (2) ASSY, PINCH 523-925-146-11BUTTON (FF) 533-925-147-01BUTTON (REW) 543-925-148-11BUTTON (PLAY) 553-925-145-21BUTTON (REC) 563-924-738

28、-01BUTTON (STOP) 573-703-925-21SCREW (M1.4) 583-924-625-01LEVER (HEAD) 593-924-645-01BRACKET (HEAD) 603-924-685-01SPRING (AZIMUTH), COMPRESSION 613-704-197-91SCREW (IB LOCK) 623-375-135-01SCREW (1.4), SPECIAL 633-376-177-01SCREW (M1.4X3.8) 643-925-107-01SPRING (IDLER), COMPRESSION 653-924-637-01GEAR

29、 (FF) 663-924-673-01GEAR (S REEL) 673-924-674-01SPRING (B.T), COMPRESSION 683-924-641-01GEAR (T REEL) 693-924-726-01SPRING (M GROUND), TORSION 703-907-943-01BELT (CAPSTAN) 713-925-109-01CUSHION (MOTOR) 723-925-108-01SCREW (MOTOR) 733-924-644-01SPRING (POWER TENSION),TENSION 743-030-766-12SHEET (MOTO

30、R) 753-831-441-11CUSHION, CABINET UPPER 10X7X0.5 763-927-754-11CUSHION (M) 773-348-160-11SCREW (M1.4X1.6), PRECISION PAN 783-561-685-01SHEET (C), INSULATING M9011-763-453-11MOTOR, DC (LOADING)(WITH PULLY) HE9011-500-232-11HEAD, MAGNETIC (ERASE) HRP901 1-500-073-51HEAD, MAGNETIC (PB/REC) SECTION 6 EX

31、PLODED VIEWS 6-2. MECHANISM DECK SECTION-1 (MT-323-118) Ref. No.Part No.DescriptionRemarksRef. No.Part No.DescriptionRemarks 6-1. CABINET SECTION Ref. No.Part No.DescriptionRemarksRef. No.Part No.DescriptionRemarks 13 14 1 223 23 3 4 5 6 MT-323-118 7 8 9 MIC901 10 11 12 13 14 15 16 SP901 17 1 17 1 1

32、9 23 23 20 24 25 21 22 18 not supplied 62 63 61 65 68 69 74 75 M901 70 76 78 71 73 72 51 not supplied 54 53 52 55 56 57 HE901 67 66 HRP901 5977 64 58 60 NOTE: -XX, -X mean standardized parts, so they may have some differences from the original one. Items marked “*” are not stocked since they are sel

33、dom required for routine service. Some delay should be anticipated when ordering these items. The mechanical parts with no reference number in the exploded views are not supplied. Accessories and packing materials are given in the last of this parts list. 13-318-382-31SCREW (1.7), TAPPING 23-345-648

34、-01SCREW (M1.4), TOOTHED LOCK * 3A-3021-355-A MAIN BOARD, COMPLETE 43-924-741-01TERMINAL, PLUS 53-936-973-01TERMINAL, MINUS 63-334-565-41SCREW (B1.7), TAPPING 73-924-745-01BAR, GROUND 83-924-740-01HOLDER, MICROPHONE 93-924-763-01CUSHION (MICROPHONE) 103-924-743-01CLAW, ERASING PROTECTION 113-924-744

35、-01SPRING(CLAW DETECTION),TENSION 123-939-590-26SCREW (IB LOCK) 133-578-101-31PLATE, ORNAMENTAL 143-019-363-51CABINET (FRONT) 153-924-739-01SPRING, CASSETTE 16X-3379-563-1LID SUB ASSY, CASSETTE * 173-924-757-01BRACKET (SPEAKER) 18X-3375-808-1LID BLOCK ASSY, BATTERY CASE 194-017-441-01CUSHION (B) 203

36、-924-747-11KNOB (PAUSE) 213-318-203-92SCREW (B1.7X9), TAPPING 223-019-442-02CABINET (REAR) 233-831-441-99SPACER, KNOB 243-831-441-11CUSHION (B) 253-366-890-51SCREW (IB LOCK) MIC901 1-542-136-11MICROPHONE, ELECTRET CONDEDSER SP9011-529-188-11SPEAKER (3.6cm) 51X-3377-250-1LEVER (2) ASSY, PINCH 523-925

37、-146-11BUTTON (FF) 533-925-147-01BUTTON (REW) 543-925-148-11BUTTON (PLAY) 553-925-145-21BUTTON (REC) 563-924-738-01BUTTON (STOP) 573-703-925-21SCREW (M1.4) 583-924-625-01LEVER (HEAD) 593-924-645-01BRACKET (HEAD) 603-924-685-01SPRING (AZIMUTH), COMPRESSION 613-704-197-91SCREW (IB LOCK) 623-375-135-01

38、SCREW (1.4), SPECIAL 633-376-177-01SCREW (M1.4X3.8) 643-925-107-01SPRING (IDLER), COMPRESSION 653-924-637-01GEAR (FF) 663-924-673-01GEAR (S REEL) 673-924-674-01SPRING (B.T), COMPRESSION 683-924-641-01GEAR (T REEL) 693-924-726-01SPRING (M GROUND), TORSION 703-907-943-01BELT (CAPSTAN) 713-925-109-01CU

39、SHION (MOTOR) 723-925-108-01SCREW (MOTOR) 733-924-644-01SPRING (POWER TENSION),TENSION 743-030-766-12SHEET (MOTOR) 753-831-441-11CUSHION, CABINET UPPER 10X7X0.5 763-927-754-11CUSHION (M) 773-348-160-11SCREW (M1.4X1.6), PRECISION PAN 783-561-685-01SHEET (C), INSULATING M9011-763-453-11MOTOR, DC (LOAD

40、ING)(WITH PULLY) HE9011-500-232-11HEAD, MAGNETIC (ERASE) HRP901 1-500-073-51HEAD, MAGNETIC (PB/REC) 15 6-3. MECHANISM DECK SECTION-2 (MT-323-118) Ref. No.Part No.DescriptionRemarksRef. No.Part No.DescriptionRemarks 113 114 115 127 101 116 117 119 120 121 122 123 118 124 125 126 129 128 102 101 102 1

41、03 102 104 105 106 107 109 110 111 108 112 101 not supplied 1013-321-483-11RING, RETAINING 1023-701-437-51WASHER 103X-3370-384-1FLYWHEEL ASSY 1043-924-623-01LEVER (PLAY) 1053-924-621-01LEVER (REW) 1063-924-620-01LEVER (FF) 107X-3370-388-1TABLE ASSY, FELT 1083-924-642-01SPRING (FR), TORSION 1093-924-

42、629-01LEVER (DETECTION) 1103-925-207-01SPRING (S.OFF), TENSION 1113-924-630-01LEVER (S.OFF) 112X-3370-387-1LEVER ASSY, IDLER 1133-924-682-01BELT (FR) 114X-3370-385-1PULLEY (FR) ASSY 1153-924-628-01LEVER (FR) 1163-924-633-01SPRING (STOP), TENSION 1173-924-622-01LEVER (STOP) 1183-045-541-01SPRING (PR3

43、), TORSION 1193-924-684-01SPRING (LOCK PLATE), TENSION 1203-924-619-01LEVER (SW) 1213-924-639-01LEVER (CR) 1223-924-618-01LEVER (LOCK) 1233-925-208-01SPRING (REC), TENSION 1243-924-624-01LEVER (REC) 125X-3370-227-1CHASSIS ASSY 1263-924-613-01GEAR (FR) 1273-024-378-21SPRING (FR LEVER), TORSION 1283-0

44、29-566-21STOPPER (FF) 1293-704-197-33SCREW (IB LOCK) NOTE: Due to standardization, replacements in the parts list may be different from the parts specified in the diagrams or the components used on the set. -XX, -X mean standardized parts, so they may have some difference from the original one. Item

45、s marked “*” are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items. CAPACITORS: uF: F RESISTORS All resistors are in ohms. METAL: metal-film resistor METAL OXIDE: Metal Oxide-film resistor F: nonflammable COILS uH: H Abbreviati

46、on EA: Saudi Arabia model. TW: Taiwan model. CH: Chinese model. MX: Mexican model. SEMICONDUCTORS In each case, u: , for example: uA.: A. , uPA. , PA. , uPB. , PB. , uPC. , PC. , uPD., PD. When indicating parts by reference number, please include the board name. Ref. No.Part No.DescriptionRemarksRef

47、. No.Part No.DescriptionRemarks 16 SECTION 7 ELECTRICAL PARTS LIST MAIN *A-3021-355-A MAIN BOARD, COMPLETE * 3-924-741-03TERMINAL, PLUS C1011-104-357-11ELECT47uF20.00% 6.3V C1021-104-396-11ELECT10uF20.00% 16V C1031-165-128-11CERAMIC CHIP0.22uF16V C1041-126-159-11ELECT0.47uF20.00% 50V C1051-165-128-1

48、1CERAMIC CHIP0.22uF16V C1061-162-974-11CERAMIC CHIP0.01uF50V C1071-104-396-11ELECT10uF20.00% 16V C1081-162-966-11CERAMIC CHIP0.0022uF10%50V C1091-115-156-11CERAMIC CHIP1uF10V C1101-164-156-11CERAMIC CHIP0.1uF25V C1111-162-970-11CERAMIC CHIP0.01uF10%25V C1121-104-396-11ELECT10uF20.00% 16V C1131-162-9

49、67-11CERAMIC CHIP0.0033uF10%50V C1151-104-357-11ELECT47uF20.00% 6.3V C1161-104-411-11ELECT1uF20.00% 50V C1171-126-163-11ELECT4.7uF20%50V C1191-126-154-11ELECT47uF20%6.3V C1211-164-361-11CERAMIC CHIP0.047uF16V C1221-165-128-11CERAMIC CHIP0.22uF16V C1231-124-434-00ELECT220uF20.00% 4V C1241-162-964-11CERAMIC CHIP0.001uF10%50V C1251-162-964-11CERAMIC CHIP0.001uF10%50V C1271-164-156-11CERAMIC CHIP0.1uF25V C1311-135-834-