Sony TCM-23DV Operating Instructions (primary manual) Service Manual
Cassette-corder
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Also See for TCM-23DV Operating Instructions (primary manual):
- Operating instructions manual (10 pages) ,
- Service manual (16 pages) ,
- Service manual (16 pages)
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SERVICE MANUAL
Ver 1.0 2000. 02
Recording system
Tape speed
Frequency range
Speaker
Power output
Input
Output
Variable range of the tape speed
Power requirements
Dimensions (w/h/d) (incl. projecting
parts and controls)
Mass
Photo: TCM-20DV
Model Name Using Similar Mechanism
Tape Transport Mechanism Type
SPECIFICATIONS
Supplied accessories
a
a
a
a
a
a
a
a
a
a
a
a
Battery life
Playback
Recording
Note
TCM-20DV/21DV/
22DV/23DV
US Model
TCM-20DV/21DV/22DV/23DV
Canadian Model
AEP Model
Chinese Model
House Current
(see Fig. A- )
Polarity of
the plug
Note
CASSETTE-CORDER
TCM-20DV/22DV
TCM-20DV/21DV
E Model
TCM-20DV/23DV
TCM-20DV
NEW
MT-20DV-118
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Table of Contents
Related Manuals for Sony TCM-23DV Operating Instructions (primary manual)
Summary of Contents for Sony TCM-23DV Operating Instructions (primary manual)
- Page 1 SERVICE MANUAL Ver 1.0 2000. 02 Recording system Tape speed Frequency range Speaker Power output Input Output Variable range of the tape speed Power requirements Dimensions (w/h/d) (incl. projecting parts and controls) Mass TCM-20DV/21DV/ Photo: TCM-20DV Model Name Using Similar Mechanism Tape Transport Mechanism Type SPECIFICATIONS Supplied accessories...
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Page 2: Table Of Contents
SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COM- POSANTS QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY. -
Page 3: General
• Location of Controls Built-in mic BATT z REC x STOP B PLAY m REW/ REVIEW SPEED CONTROL PAUSE M FF/CUE SECTION 2 GENERAL DC IN 3 V – 3 – This section is extracted from instruction manual. REC TIME... -
Page 4: Disassembly
SECTION 3 DISASSEMBLY • This set can be disassembled in the order shown below. MAIN BOARD, MECHANISM DECK (MT-20DV-118) BELT 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... - Page 5 MAIN BOARD, MECHANISM DECK (MT-20DV-118) 5 three screws (IB lock) 1 Remove the two solders electret condenser microphone (MIC101). 4 MAIN board 1 Remove the two solders magnetic head (HRP901). BELT 1 belt (capstan) 3 screw (M1.4) 2 belt (FR) –...
- Page 6 INSTALLATION MAIN BOARD On installation MAIN board, adjust to the S101 and the S102. S102 (POWER) screw (1.7) – 6 – screw (M1.4) MAIN board S101 (REC/PB) lever (REC)
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Page 7: Mechanical Adjustments
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. -
Page 8: Electrical Adjustments
Setting: • Supplied voltage: 2.5 V • Switch and control position [VOL control (RV101) : mechanical center [PAUSE switch (S105) : OFF [SPEED CONTROL] (RV602): center click [VOR] switch (S104) : OFF Test Tape Type Signal P-4-A063 6.3 kHz, –10 dB Head Azimuth Adjustment WS-48A 3 kHz, 0 dB... -
Page 9: Diagrams
SECTION 6 DIAGRAMS 6-1. BLOCK DIAGRAM MIC101 J101 (PLUG IN POWER) Q101 CONTROL MIC AMP, REC/PB EQ AMP IC101 (1/3) MIC IN S101 (REC/PB) S101 (4/6) EQ IN HRP901 (REC/PB) VREF HE901 S101 (1/6) (ERASE) CONT REC OUT POWER ON S601-2 REC TIME DOUBLE... -
Page 10: Printed Wiring Board
TCM-20DV/21DV/22DV/23DV 6-2. PRINTED WIRING BOARDS MAIN BOARD (COMPONENT SIDE) C137 R127 Q112 Q108 Q109 R604 B C E S105 Q107 PAUSE B C E B C E Q110 C138 R136 RV602 SPEED CONTROL • Semiconductor Location Ref. No. Location Ref. No. Location D101 A-13 Q105... -
Page 11: Schematic Diagram
6-3. SCHEMATIC DIAGRAM • See page 15 for IC Block Diagram. – 13 – TCM-20DV/21DV/22DV/23DV 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. -
Page 12: Exploded Views
• IC Block Diagram IC101 LA4168ML-TE-L PAUSE 2.2k Vref – SPEED 300k – 15 – NOTE: • -XX and -X mean standardized parts, so they may have some difference from the original one. • Color Indication of Appearance Parts Example: KNOB, BALANCE (WHITE) . - Page 13 (2) MECHANISM DECK SECTION-1 (MT-20DV-118) HRP901 HE901 supplied Ref. No. Part No. Description X-3377-250-1 LEVER, (2) ASSY, PINCH 3-925-146-01 BUTTON (FF) (M) 3-925-147-01 BUTTON (REW) (m) 3-925-148-01 BUTTON (PLAY) (N) 3-925-145-01 BUTTON (REC) (z) 3-924-738-01 BUTTON (STOP) (x) 3-703-925-21 SCREW (M1.4) 3-924-625-01 LEVER (HEAD) 3-924-645-01 BRACKET (HEAD) 3-924-685-01 SPRING (AZIMUTH), COMPRESSION...
- Page 14 (3) MECHANISM DECK SECTION-2 (MT-20DV-118) Ref. No. Part No. Description 3-321-483-11 RING, RETAINING (0.25) 3-315-495-31 WASHER X-3370-384-1 FLYWHEEL ASSY 3-924-623-01 LEVER (PLAY) 3-924-621-01 LEVER (REW) 3-924-620-01 LEVER (FF) X-3370-388-1 TABLE ASSY, FELT 3-924-642-01 SPRING (FR), TORSION 3-924-629-01 LEVER (DETECTION) 3-925-207-01 SPRING (S. OFF), TENSION 3-924-630-01 LEVER (S.OFF) X-3370-387-1 LEVER ASSY, IDLER 3-924-682-01 BELT (FR)
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Page 15: Electrical Parts List
NOTE: • Due to standardization, replacements in the parts list may be different from the parts speci- fied in the diagrams or the components used on the set. • -XX and -X mean standardized parts, so they may have some difference from the original one. - Page 16 8-814-296-90 MICROPHONE, CONDENSER ECM-TC60 The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part num- ber specified. Sony Corporation Personal Audio Division Company – 20 – Description Remark < THERMISTOR >...
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