Sony TCM-22DV manual

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Table of contents for the manual

  • Page 1

    SERVICE MANUAL CASSETTE-CORDER US Model TCM-20D V/21D V/22D V/23D V Canadian Model TCM-20D V/22D V AEP Model TCM-20D V/21D V E Model TCM-20D V/23D V Chinese Model TCM-20D V SPECIFICA TIONS TCM-20DV/21DV/ 22DV/23DV Model Name Using Similar Mechanism NEW T ape T ranspor t Mechanism T ype MT -20D V -118 Photo: TCM-20D V Supplied accessories The instru[...]

  • Page 2

    – 2 – T ABLE OF CONTENTS 1. SER VICING NOTES ............................................... 2 2. GENERAL ................................................................... 3 3. DISASSEMBL Y ......................................................... 4 4. MECHANICAL ADJUSTMENTS ....................... 7 5. ELECTRICAL ADJUSTMENTS ................[...]

  • Page 3

    – 3 – SECTION 2 GENERAL This section is e xtracted from instruction manual. • Location of Controls REC TIME MIC VOL B PLA Y M FF/CUE SPEED CONTROL EAR VOR z REC x STOP m REW/ REVIEW P AUSE DC IN 3 V . Built-in mic BA TT[...]

  • Page 4

    – 4 – CABINET (REAR), CASSETTE LID Note: Follo w the disassembly procedure in the numerical order giv en. SECTION 3 DISASSEMBL Y • This set can be disassembled in the order sho wn below . SET CABINET (REAR), CASSETTE LID MAIN BOARD, MECHANISM DECK (MT-20DV-118) BEL T 9 cassette lid INSTALLATION CASSETTE SPRIN G cabinet front 5 hand strap 3 cl[...]

  • Page 5

    – 5 – MAIN BO ARD, MECHANISM DECK (MT -20D V -118) BEL T 6 claw 2 screw (1.7) 3 screw (M1.4) 4 MAIN board 7 mechanism deck (MT-20DV-118) 5 three screws (IB lock) 1 Remove the two solders electret condenser microphone (MIC101). 1 Remove the two solders magnetic head (HRP901). 1 Remove the two solders motor (M901). 1 belt (capstan) 2 belt (FR) ca[...]

  • Page 6

    – 6 – INST ALLA TION MAIN BO ARD On installation MAIN board, adjust to the S101 and the S102. screw (1.7) screw (M1.4) MAIN board S101 (REC/PB) S102 (POWER) lever (REC)[...]

  • Page 7

    – 7 – Mode T orque Meter Meter Reading 4.90 mN•m FWD CQ-403C (more than 50 g) (more than 1.76 oz) Mode T orque Meter Meter Reading FWD 2.16 - 4.7 mN•m (22 - 48 g•cm) CQ-102C (0.31 - 0.67 oz•inch) FWD 0.05 - 0.29 mN•m (0.5 - 3 g•cm) Back T ension (0.007 - 0.04 oz•inch) FF 4.90 mN•m CQ-201B (more than 50 g•cm) REW (more than 0.6[...]

  • Page 8

    – 8 – SECTION 5 ELECTRICAL ADJUSTMENTS T ape Speed Adjustment Mode: playback Procedure: – Normal Speed – 1. Set [REC TIME] switch (S601) to NORMAL (4.8 cm/s) posi- tion, and playback the tape (WS-48A) . 2. Adjust R V601 so that frequency counter reading becomes 3,040 Hz. Specification v alues: 3,030 to 3,050 Hz – Double Speed – 3. Set [[...]

  • Page 9

    TCM-20D V/21D V/22D V/23D V – 9 – – 10 – SECTION 6 DIA GRAMS 6-1. BLOCK DIA GRAM MIC AMP, REC/PB EQ AMP IC101 (1/3) POWER AMP, VOR CONTROL,REGULATOR IC101 (2/3) 05 • SIGNAL PATH : PLAY : RECORD GVN OUT VREF MIC VCC Q106 REC/PB MONITOR LEVEL SWITCHING SP901 (SPEAKER) POW OUT 1 POW OUT 2 POW IN REC B+ REC B+ REC B+ REC B+ PB B+ POWER ON B+ [...]

  • Page 10

    TCM-20D V/21D V/22D V/23D V – 11 – – 12 – 6-2. PRINTED WIRING BO ARDS C140 C110 C121 R610 C126 C108 R137 R110 R114 C145 R119 R109 R108 C144 C146 C148 C107 C141 C106 R103 R102 R105 R106 R134 R130 R601 R603 R131 R132 R104 R118 R112 C112 R113 R111 R133 R129 R122 C136 R101 C102 C103 C132 C142 C149 R142 R606 R607 R609 R602 C114 C116 C109 C134 C1[...]

  • Page 11

    TCM-20D V/21D V/22D V/23D V – 13 – – 14 – Note on Schematic Diagram: • All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums. • All resistors are in Ω and 1 / 4 W or less unless otherwise specified. • C : panel designation. • U : B+ Line. • H : adjustme[...]

  • Page 12

    • IC Block Dia gram IC101 LA4168ML-TE-L + – + – + – + – 21 22 23 24 25 26 27 28 29 30 2 3 5 4 6 7 8 9 10 1 11 12 13 14 15 16 17 18 19 20 300k EQ MIC 2.2k 30k 2k PAUSE POWER MIC VCC Vref R/P R, F GVN VOX SPEED ALC VOX 20k REC 1 2 PRE GND EQ IN MIC IN Vref OUT MIC VCC R, F OUT LED DRIV E R/P SW PAUSE P/R MUTE GVN CONT GVN Vref Vs GVN GND GV[...]

  • Page 13

    – 17 – Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark (2) MECHANISM DECK SECTION-1 (MT -20D V -118) 51 X-3377-250-1 LEVER, (2) ASSY , PINCH 52 3-925-146-01 BUTTON (FF) ( M ) 53 3-925-147-01 BUTTON (REW) ( m ) 54 3-925-148-01 BUTTON (PLA Y) ( N ) 55 3-925-145-01 BUTTON (REC) ( z ) 56 3-924-738-01 BUTTON (STOP) ( x ) 57[...]

  • Page 14

    – 18 – (3) MECHANISM DECK SECTION-2 (MT -20D V -118) Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 101 3-321-483-11 RING, RET AINING (0.25) 102 3-315-495-31 WASHER 103 X-3370-384-1 FL YWHEEL ASSY 104 3-924-623-01 LEVER (PLA Y) 105 3-924-621-01 LEVER (REW) 106 3-924-620-01 LEVER (FF) 107 X-3370-388-1 T ABLE ASSY , FEL[...]

  • Page 15

    – 19 – SECTION 8 ELECTRICAL P ARTS LIST Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark * A-3021-314-A MAIN BOARD, COMPLETE ********************* 3-924-741-01 TERMINAL, PLUS < CAP ACITOR > C101 1-163-809-11 CERAMIC CHIP 0.047uF 10% 25V C102 1-164-161-11 CERAMIC CHIP 0.0022uF 10% 100V C103 1-109-982-11 CERAMIC CHI[...]

  • Page 16

    – 20 – Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R105 1-216-049-11 RES-CHIP 1K 5% 1/10W R106 1-216-049-11 RES-CHIP 1K 5% 1/10W R108 1-216-085-00 MET AL CHIP 33K 5% 1/10W R109 1-216-037-00 MET AL CHIP 330 5% 1/10W R110 1-216-037-00 MET AL CHIP 330 5% 1/10W R111 1-216-069-00 MET AL CHIP 6.8K 5% 1/10W R112 1-216-073[...]