Sony Cassette-Corder TCM-22DV user manual

User manual for the device Sony Cassette-Corder TCM-22DV

Device: Sony Cassette-Corder TCM-22DV
Category: MP3 Player
Manufacturer: Sony
Size: 1.08 MB
Added : 10/15/2014
Number of pages: 16
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Summaries

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Abstracts of contents
Summary of the content on the page No. 1

TCM-20DV/21DV/
22DV/23DV
SERVICE MANUAL US Model
TCM-20DV/21DV/22DV/23DV
Ver 1.0 2000. 02
Canadian Model
TCM-20DV/22DV
AEP Model
TCM-20DV/21DV
E Model
TCM-20DV/23DV
Chinese Model
TCM-20DV
Photo: TCM-20DV
Model Name Using Similar Mechanism NEW
Tape Transport Mechanism Type MT-20DV-118
SPECIFICATIONS
Recording system
Supplied accessories House Current (see Fig. A- )
2-track 1 channel monaural
The instructions in this manual are for Connect the AC power adaptor to
Tape speed
4 models.
DC IN 3V and

Summary of the content on the page No. 2

SECTION 1 SERVICING NOTES TABLE OF CONTENTS 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. 1. SERVICING NOTES ............................................... 2 When making an operation check and voltage check of mechani- cal deck with the MAIN board removed, fix the S102 at turn on. 2. GENERAL ................................................................... 3 – MAI

Summary of the content on the page No. 3

SECTION 2 This section is extracted from instruction manual. GENERAL • Location of Controls EAR VOR MIC Built-in mic VOL BATT z REC x STOP B PLAY REC TIME m REW/ REVIEW SPEED CONTROL PAUSE . M FF/CUE DC IN 3 V – 3 –

Summary of the content on the page No. 4

SECTION 3 DISASSEMBLY • This set can be disassembled in the order shown below. MAIN BOARD, MECHANISM DECK (MT-20DV-118) BELT SET CABINET (REAR), CASSETTE LID Note: Follow the disassembly procedure in the numerical order given. CABINET (REAR), CASSETTE LID INSTALLATION CASSETTE SPRING cabinet front 9 cassette lid cassette lid 7 boss cassette spring 3 four claws 7 boss 6 Remove the six solders. 5 hand strap 4 cabinet (rear) 2 screw 3 claw (IB lock) 1 three screws (B1.7 × 9) – 4 –

Summary of the content on the page No. 5

MAIN BOARD, MECHANISM DECK (MT-20DV-118) 5 three screws (IB lock) 6 claw 7 mechanism deck (MT-20DV-118) 1 Remove the two solders electret condenser microphone (MIC101). 1 Remove the two solders motor (M901). 4 MAIN board 1 Remove the two solders 3 screw magnetic head (HRP901). (M1.4) 2 screw (1.7) BELT 1 belt (capstan) pulley (FR) assy FR belt 2 belt (FR) capstan belt motor DC flywheel assy – 5 –

Summary of the content on the page No. 6

INSTALLATION MAIN BOARD On installation MAIN board, adjust to the S101 and the S102. screw (1.7) screw (M1.4) MAIN board S102 (POWER) S101 (REC/PB) lever (REC) – 6 –

Summary of the content on the page No. 7

SECTION 4 MECHANICAL ADJUSTMENTS 1. Clean the following parts with a denatured-alcohol-moistened swab: record/playback head pinch roller erase head rubber belt capstan idlers 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 adjustments should be performed with the rat

Summary of the content on the page No. 8

SECTION 5 ELECTRICAL ADJUSTMENTS Setting: Tape Speed Adjustment • Supplied voltage: 2.5 V Mode: playback • Switch and control position test tape [VOL ] w control (RV101) : mechanical center frequency WS-48A [PAUSE ] . switch (S105) : OFF counter (3 kHz, 0 dB) [SPEED CONTROL](RV602): center click 10 kΩ [VOR] switch (S104) : OFF + set – Test Tape EAR jack (J102) Type Signal Used for Procedure: P-4-A063 6.3 kHz, –10 dB Head Azimuth Adjustment – Normal Speed – WS-48A 3 kHz, 0 dB Tape

Summary of the content on the page No. 9

TCM-20DV/21DV/22DV/23DV SECTION 6 DIAGRAMS 6-1. BLOCK DIAGRAM MIC101 • SIGNAL PATH MIC : PLAY : RECORD J101 VREF MIC (PLUG IN POWER) Q101 AGC S101 (2/6) CONTROL MIC AMP, REC/PB EQ AMP Q104 S101 (3/6) POWER AMP, VOR CONTROL,REGULATOR (REC/PB) IC101 (1/3) PB EQ (REC/PB) REC B+ IC101 (2/3) PB SWITCH RV101 PB VOL MIC IN REC PRE S101 MIC 28 REC POW OUT 1 OUT (REC/PB) BUFFER AMP 2 12 POW IN POWER Q102 PB 11 POW OUT 2 SP901 AMP 14 (SPEAKER) + S101 (4/6) REC EQ IN EQ 29 NF AMP HRP901 J102 (REC/PB) PRE

Summary of the content on the page No. 10

TCM-20DV/21DV/22DV/23DV 6-2. PRINTED WIRING BOARDS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 J101 J102 MIC EAR (PLUG IN POWER) A D101 MIC101 BATT (COMPONENT SIDE) (CONDUCTOR SIDE) MIC MAIN BOARD MAIN BOARD S104 VOR RV101 OFF L H R118 C144 VOL –2 B C146 –1 R125 + C133 S101 R115 (REC/PB) REC PB C148 R103 R102 R105 –3 –6 C107 R106 C –2 –5 Q111 C145 R134 R104 C130 BC E –1 –4 Q102 1 Q101 12 E B C137 2 C Q104 C127 C140 C B E HRP901 C124 R110 C108 C141 R132 (REC/PB HEAD) D C106 R131 R127 + R13

Summary of the content on the page No. 11

TCM-20DV/21DV/22DV/23DV 6-3. SCHEMATIC DIAGRAM • See page 15 for IC Block Diagram. Note on Schematic Diagram: • All capacitors are in µF unless otherwise noted. pF: µµF • Voltages are dc with respect to ground under no-signal 50 WV or less are not indicated except for electrolytics conditions. and tantalums. no mark : PLAY 1 • All resistors are in and /4 W or less unless otherwise < > : RECORD specified. • Voltages are taken with a VOM (Input impedance 10 M ). •C : panel designation. Voltag

Summary of the content on the page No. 12

SECTION 7 EXPLODED VIEWS NOTE: • IC Block Diagram • -XX and -X mean standardized parts, so they • Items marked “*” are not stocked since they IC101 LA4168ML-TE-L may have some difference from the original are seldom required for routine service. Some one. delay should be anticipated when ordering • Color Indication of Appearance Parts these items. Example: • The mechanical parts with no reference num- KNOB, BALANCE (WHITE) . . . (RED) ber in the exploded views are not supplied. ↑↑ • Accessorie

Summary of the content on the page No. 13

(2) MECHANISM DECK SECTION-1 (MT-20DV-118) 62 63 HRP901 61 74 59 65 60 64 66 68 58 67 57 69 76 HE901 77 56 70 55 M901 not supplied 54 75 53 52 71 51 78 73 72 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 51 X-3377-250-1 LEVER, (2) ASSY, PINCH 67 3-924-674-01 SPRING (B. T), COMPRESSION 52 3-925-146-01 BUTTON (FF) (M) 68 3-924-641-01 GEAR (T REEL) 53 3-925-147-01 BUTTON (REW) (m) 69 3-924-726-01 SPRING (M GROUND), TORSION 54 3-925-148-01 BUTTON (PLAY) (N) 70 3-907-943

Summary of the content on the page No. 14

(3) MECHANISM DECK SECTION-2 (MT-20DV-118) 113 110 111 112 114 109 116 127 101 117 107 101 120 119 not supplied 115 108 121 118 106 123 122 105 104 124 128 103 129 125 102 102 101 126 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 101 3-321-483-11 RING, RETAINING (0.25) 116 3-924-633-01 SPRING (STOP), TENSION 102 3-315-495-31 WASHER 117 3-924-622-01 LEVER (STOP) 103 X-3370-384-1 FLYWHEEL ASSY 118 3-924-643-01 SPRING (PR), TORSION 104 3-924-623-01 LEVER (PLAY) 119 3-9

Summary of the content on the page No. 15

SECTION 8 MAIN ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in the • Items marked “*” are not stocked since they The components identified by mark 0 or dotted line with mark parts list may be different from the parts speci- are seldom required for routine service. 0 are critical for safety. fied in the diagrams or the components used Some delay should be anticipated when order- Replace only with part number on the set. ing these items. specified. • -XX and -X mean standa

Summary of the content on the page No. 16

TCM-20DV/21DV/22DV/23DV MAIN SW Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R105 1-216-049-11 RES-CHIP 1K 5% 1/10W < THERMISTOR > R106 1-216-049-11 RES-CHIP 1K 5% 1/10W THP601 1-810-007-11 THERMISTOR, POSITIVE R108 1-216-085-00 METAL CHIP 33K 5% 1/10W THP602 1-809-350-21 THERMISTOR, NTC (2125) R109 1-216-037-00 METAL CHIP 330 5% 1/10W ************************************************************** R110 1-216-037-00 METAL CHIP 330 5% 1/10W R111 1-216-069-00 METAL


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