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Sony TCM-343 Service Manual
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Sony TCM-343 Service Manual

E model
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3 7 63 1515 0
SERVICE MANUAL
Ver 1.0 2000. 11
TE
L 13942296513
www
.
http://www.xiaoyu163.com
Recording system
Frequency range
Speaker
Power output (at 10% harmonic
distortion)
Output
Power requirements
Dimensions (w/h/d) (incl. projecting
parts and controls)
Mass (not incl. batteries)
Design and specifications are subject
to change without notice.
x
ao
u163
y
i
http://www.xiaoyu163.com
TCM-343
2 9
8
Model Name Using Similar Mechanism
Tape Transport Mechanism Type
Q Q
SPECIFICATIONS
3
6 7
1 3
1 5
2-track 1 channel monaural
250 - 6 300 Hz
7
Approx. 3.6 cm (1
/
in.) dia.
16
250 mW
Earphone jack (minijack) for 8 -
300Ω earphone
• 3 V DC batteries R6 (AA) × 2
• External DC 3 V power sources
Approx. 112 × 36.6 × 90.3 mm
× 1
× 3
(4
1
⁄
1
⁄
5
⁄
in.)
2
2
8
Approx. 180 g (6.4 oz.)
co
.
9 4
2 8
E Model
Chinese Model
NEW
MT-323-118
0 5
8
2 9
9 4
2 8
m
CASSETTE-CORDER
9 9
9 9

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  • Page 1 TCM-343 3 7 63 1515 0 SERVICE MANUAL E Model Chinese Model Ver 1.0 2000. 11 Model Name Using Similar Mechanism Tape Transport Mechanism Type MT-323-118 SPECIFICATIONS L 13942296513 Recording system 2-track 1 channel monaural Frequency range 250 - 6 300 Hz Speaker Approx.

  • Page 2: Table Of Contents

    http://www.xiaoyu163.com SECTION 1 GENERAL 3 7 63 1515 0 TABLE OF CONTENTS 1. GENERAL ·········································································· 2 This section is extracted from instruction manual. 2. DISASSEMBLY 2-1. Lid Sub Assy, Cassette ···················································· 3 2-2. Main Board, Mechanism Deck ······································· 3 2-3. Belt ·················································································· 4 2-4.

  • Page 3: Disassembly

    http://www.xiaoyu163.com SECTION 2 DISASSEMBLY 3 7 63 1515 0 • The equipment can be removed using the following procedure. Lid Sub Assy, Cassette Main Board, Mechanism Deck Belt “Head, Magnetic”, Pinch Roller Note : Follow the disassembly procedure in the numerical order given. 2-1.

  • Page 4: Belt

    http://www.xiaoyu163.com 3 7 63 1515 0 2-3. BELT 2-4. “HEAD, MAGNETIC”, PINCH ROLLER 5 screw (M1.4 × 3.8) 4 screw (1.4) 6 head, magnetic (HRP901) 1 belt (capstan) 3 pinch roller 7 spring (azimuth), compression 2 belt (fr) 8 screw (M1.4) 9 head, magnetic (HE901) 1 lever (pinch roller)

  • Page 5: Mechanical Adjustment

    http://www.xiaoyu163.com SECTION 3 SECTION 4 MECHANICAL ADJUSTMENT ELECTRICAL ADJUSTMENT 3 7 63 1515 0 PRECAUTION PRECAUTION Clean the following parts with a denatured-alcohol-moistened • Supplied voltage : 3.0 V swab : • Switch and control position playback head pinch roller VOL control : mechanical mid capstan...

  • Page 6: Diagrams

    http://www.xiaoyu163.com SECTION 5 DIAGRAMS 3 7 63 1515 0 Note on Schematic Diagram: 5-1. IC BLOCK DIAGRAMS • All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or IC601 NJM2606AM-TE2 less are not indicated except for electrolytics and tantalums. •...

  • Page 7: Block Diagram

    TCM-343 5-2. BLOCK DIAGRAM 3 7 6 3 1 5 1 5 0 IC101 SP901 PRE/POWER AMP, ALC (SPEAKER) RV101 HRP901 J102 – (PB/REC) HEAD – HE901 – (ERASE) S101 (1/4) S101 (2/4) REC) REC) S101 (3/4) REC) • Signal Path...

  • Page 8: Schematic Diagram

    TCM-343 • See page 6 for IC Block Diagrams. 5-3. SCHEMATIC DIAGRAM 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 —...

  • Page 9: Printed Wiring Board

    TCM-343 5-4. PRINTED WIRING BOARD 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 • Semiconductor Location Ref. No. Location D401 F-11 IC101 IC601 Q101 w w w u 1 6 3 —...

  • Page 10: Exploded Views

    http://www.xiaoyu163.com SECTION 6 EXPLODED VIEWS 3 7 63 1515 0 NOTE: • -XX, -X mean standardized parts, so they may • The mechanical parts with no reference number have some differences from the original one. in the exploded views are not supplied. •...

  • Page 11: Mechanism Deck Section-1 (Mt-323-118)

    http://www.xiaoyu163.com 3 7 63 1515 0 6-2. MECHANISM DECK SECTION-1 (MT-323-118) HRP901 M901 HE901 L 13942296513 not supplied Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks X-3377-250-1 LEVER (2) ASSY, PINCH 3-924-674-01 SPRING (B.T), COMPRESSION 3-925-146-11 BUTTON (FF) 3-924-641-01 GEAR (T REEL) 3-925-147-01 BUTTON (REW) 3-924-726-01 SPRING (M GROUND), TORSION...

  • Page 12: Mechanism Deck Section-2 (Mt-323-118)

    http://www.xiaoyu163.com 3 7 63 1515 0 6-3. MECHANISM DECK SECTION-2 (MT-323-118) supplied L 13942296513 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 3-321-483-11 RING, RETAINING 3-924-633-01 SPRING (STOP), TENSION 3-701-437-51 WASHER 3-924-622-01 LEVER (STOP) X-3370-384-1 FLYWHEEL ASSY 3-045-541-01 SPRING (PR3), TORSION 3-924-623-01 LEVER (PLAY) 3-924-684-01 SPRING (LOCK PLATE), TENSION...

  • Page 13: Electrical Parts List

    http://www.xiaoyu163.com SECTION 7 MAIN ELECTRICAL PARTS LIST 3 7 63 1515 0 NOTE: • Due to standardization, replacements in the • RESISTORS • SEMICONDUCTORS parts list may be different from the parts All resistors are in ohms. In each case, u: µ, for example: specified in the diagrams or the components METAL: metal-film resistor uA...: µA...
  • Page 14 http://www.xiaoyu163.com MAIN 3 7 63 1515 0 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks JC165 1-216-864-11 METAL CHIP 1/16W < VARIABLE RESISTOR > JC166 1-216-864-11 METAL CHIP 1/16W JC167 1-216-864-11 METAL CHIP 1/16W RV101 1-225-597-11 RES, VAR, CARBON 10K (VOL) RV601 1-238-663-11 RES, ADJ, CARBON 4.7K <...
  • Page 15 TCM-343 3 7 63 1515 0 L 13942296513 u163 Sony Corporation 2000K1616-1 Audio Entertainment Group 9-873-032-11 Printed in Japan ©2000.11 — 18 — Published by General Engineering Dept. http://www.xiaoyu163.com...

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