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Sony TCM-50DV Service Manual
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Sony TCM-50DV Service Manual

Sony TCM-50DV Service Manual

Cassette-corder
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3 7 63 1515 0
SERVICE MANUAL
Ver 1.1 2000. 08
With SUPPLEMENT-1
(9-926-919-81)
TE
L 13942296513
Recording system
2-track 1 channel monaural
Tape speed
4.8 cm/s or 2.4 cm/s
Frequency range
250 - 6,300 Hz using normal (TYPE I) cassette (with REC TIME switch
at "NORMAL")
Speaker
Approx. 3.6 cm (1
7/16
Power output
250 mW (at 10% harmonic distortion)
Input
Microphone input jack (minijack) sensitivity 0.2 mV for 3 kilohms or
lower impedance microphone
Output
Earphone jack (minijack) for 8 - 300 ohms earphone
Variable range of the tape speed
From approx. +25% to –15% (with REC TIME switch at "NORMAL")
Power requirements
3 V DC batteries AA (R6) × 2/External DC 3 V power sources
Battery life (Approx. hours)
Sony alkaline LR6 (SG)
Playback
Recording
* Measured value by the standard of EIAJ (Electronic Industries
Association of Japan). (Using a Sony HF series cassette tape)
www
.
MICROFILM
http://www.xiaoyu163.com
in.) dia.
Sony R6P (SR)
9.5
1.5
10.5
2
x
ao
y
i
http://www.xiaoyu163.com
TCM-50DV
8
SPECIFICATIONS
Q Q
3
6 7
1 3
Dimensions (w/h/d) (inci. projecting parts and controls)
Approx. 88.7 × 115.3 × 37.2 mm (3
Mass
Approx. 250 g (8.9
Supplied accessories
Size AA (R6) batteries (2) (Tourist model only)
Earphone (1) (Tourist model only)
Design and specifications are subject to change without notice.
(EIAJ*)
u163
.
– 1 –
2 9
9 4
2 8
Canadian Model
AEP Model
Tourist Model
Model Name Using Similar Mechanism
Tape Transport Mechanism Type
1 5
0 5
8
2 9
9 4
× 4
× 1
1/2
5/8
1/2
)
oz.
m
CASSETTE-CORDER
co
9 9
US Model
E Model
NEW
MT-50-30
2 8
9 9
in.)

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  • Page 1 Battery life (Approx. hours) (EIAJ*) Sony alkaline LR6 (SG) Sony R6P (SR) Playback Recording 10.5 * Measured value by the standard of EIAJ (Electronic Industries Association of Japan). (Using a Sony HF series cassette tape) CASSETTE-CORDER u163 MICROFILM – 1 – http://www.xiaoyu163.com...

  • Page 2: Table Of Contents

    http://www.xiaoyu163.com 3 7 63 1515 0 TABLE OF CONTENTS 1. SERVICING NOTE ............. 6. DIAGRAMS 6-1. Block Diagram ..............11 6-2. Printed Wiring Board –Main Section– ......13 2. GENERAL 6-3. Schematic Diagram –Main Section– ......... 15 Operating the Unit ..............4 6-4.

  • Page 3: Servicing Note

    http://www.xiaoyu163.com SECTION 1 SERVICING NOTE 3 7 63 1515 0 1-1. SERVICE MODE – main board (conductor side) – Mode to allow the mechanical parts to operate with the main board open. This set uses the photo reflector PH701 to detect the rotation of the TP20 idler gear.

  • Page 4: General

    http://www.xiaoyu163.com SECTION 2 GENERAL 3 7 63 1515 0 This section is extracted from instruction manual. L 13942296513 u163 – 4 – http://www.xiaoyu163.com...
  • Page 5 http://www.xiaoyu163.com 3 7 63 1515 0 L 13942296513 u163 – 5 – http://www.xiaoyu163.com...

  • Page 6: Disassembly

    http://www.xiaoyu163.com SECTION 3 DISASSEMBLY 3 7 63 1515 0 • The equipment can be removed using the following procedure. Cabinet (rear), Mechanism Deck, Belts Cassette Lid Assy Main board Head Motor, DC Note : Follow the disassembly procedure in the numerical order given. 3-1.
  • Page 7 http://www.xiaoyu163.com 3 7 63 1515 0 3-2. MACHANISM DECK, MAIN BOARD 1 three screws (screw (IB lock)) 2 mechanism deck, MAIN board L 13942296513 3 Remove the four solders. 4 head flexible board 6 MAIN board 5 two screws (screw (M1.4), toothed lock) u163 –...

  • Page 8: Belt

    http://www.xiaoyu163.com 3 7 63 1515 0 3-3. BELTS 1 belt (motor) • How to apply the belts 2 belt (flywheel) belt (counter) belt (flywheel) 3 belt (counter) belt (motor) L 13942296513 3-4. HEAD 1 two screws 2 head, magnetic (REC/PB/ERASE) u163 –...

  • Page 9: Motor, Dc

    http://www.xiaoyu163.com 3 7 63 1515 0 3-5. MOTOR, DC 3 Remove the four solders. 2 screw (1.4) 1 screw (1.4) 4 Motor, DC L 13942296513 3-6. NOTE FOR INSTALLATION OF MAIN BOARD Align the knobs of S101, S103 and S701 on the main board with the claws of the lever (REC) lever (erase proof 2) and lever (REC) of the mechanism deck respectively, and install the main board.

  • Page 10: Mechanical Adjustments

    http://www.xiaoyu163.com SECTION 4 MECHANICAL ADJUSTMENTS 3 7 63 1515 0 PRECAUTION Tape Speed Adjustment Procedure : 1. Clean the following parts with a denatured-alcohol-moistened swab : test tape record/playback/erase head pinch roller digital WS-48A capstan rubber belt frequency counter (3 kHz, 0 dB) 2.

  • Page 11: Diagrams

    TCM-50DV SECTION 6 DIAGRAMS 3 7 6 3 1 5 1 5 0 6-1. BLOCK DIAGRAM PRE / POWER AMP HRPE901 S102-4 IC101 Q106 REC/PB/ERASE HEAD (FWD/REV) EQ IN REC/PB S101-3 RV101 (FWD) (REC/PB) S101-1 OUT1 (REC/PB) VREF OUT...

  • Page 12: Printed Wiring Board -Main Section

    TCM-50DV 3 7 6 3 1 5 1 5 0 6-2. PRINTED WIRING BOARD — MAIN SECTION — S702 (REW/REVIEW) S703 (DIR) TP20 TP30 (Page 17) 1 3 9 4 2 2 9 6 5 1 3 (FF/CUE) DRY BATTERY SIZE "...

  • Page 13: Schematic Diagram -Main Section

    TCM-50DV 6-3. SCHEMATIC DIAGRAM — MAIN SECTION — • Refer to page 19 for IC Block Diagrams. 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 (Page 18)

  • Page 14: Printed Wiring Board -Panel Section

    TCM-50DV 3 7 6 3 1 5 1 5 0 6-4. PRINTED WIRING BOARD — PANEL SECTION — 6-5. SCHEMATIC DIAGRAM — PANEL SECTION — (Page 15) 1-672-149- (11) 1 3 9 4 2 2 9 6 5 1 3 Note on Printed Wiring Boards: •...
  • Page 15 http://www.xiaoyu163.com 3 7 63 1515 0 • IC Block Diagrams IC101 LA4168ML PAUSE 2.2k Vref R, F SPEED POWER 300k L 13942296513 IC501 NJM2072M IC601 LB1877V UOUT INPUT DIRECTION VOUT WOUT GAIN CONT OUTPUT2 ANTI LOCKING PGND AMP OUT OUTPUT1 CURRENT PRE DRIVER RECOVERY...

  • Page 16: Ic Pin Description

    http://www.xiaoyu163.com 3 7 63 1515 0 6-6. IC PIN DESCRIPTION • IC702 TB2004FN-020 (SYSTEM CONTROL) Pin No. Pin Name Pin Description — — For system clock generation (fosc=3.2 kHz) RESET input Pause ON/OFF by PAUSE SW and VOR. “L” : ON, “H” : OFF FWD reset by cassette cover open-close.

  • Page 17: Exploded Views

    http://www.xiaoyu163.com SECTION 7 EXPLODED VIEWS 3 7 63 1515 0 NOTE: • The mechanical parts with no reference • -XX and -X mean standardized parts, so • Accessories and packing materials are number in the exploded views are not supplied. they may have some difference from the given in the last of this parts list.
  • Page 18 http://www.xiaoyu163.com 3 7 63 1515 0 7-2. PANAL SECTION MIC901 L 13942296513 SP901 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 3-032-423-01 SHEET (WINDOW), ADHESIVE 4-017-491-01 CUSHION (B) 3-032-421-11 WINDOW (CASSETTE) 3-032-424-01 PANEL (MICROPHONE) 3-032-417-11 PANEL (CASSETTE LID) * 69 1-672-149-11 LED BOARD 3-389-523-22 SCREW (IB LOCK)

  • Page 19: Mechanism Deck Section-1

    http://www.xiaoyu163.com 3 7 63 1515 0 7-3. MECHANISM DECK SECTION-1 (MT-50-30) (see page 24.) HRPE901 not supplied not supplied L 13942296513 M901 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 3-925-247-11 BUTTON, FF/CUE 3-365-630-02 SCREW (M1.4) 3-925-246-11 BUTTON, REW/REVIEW * 118 3-924-535-01 LEVER (FR)

  • Page 20: Mechanism Deck Section-2

    http://www.xiaoyu163.com 3 7 63 1515 0 7-4. MECHANISM DECK SECTION-2 (MT-50-30) supplied (including (see page 23.) L 13942296513 not supplied Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark X-3370-373-1 CHASSIS ASSY 3-924-604-01 SPRING (PLAY), TENSION * 152 3-924-537-01 LEVER (F/R) * 174 3-924-547-01 ARM (PLAY-SUB)

  • Page 21: Electrical Parts List

    http://www.xiaoyu163.com LED FLEXIBLE SECTION 8 MAIN ELECTRICAL PARTS LIST 3 7 63 1515 0 NOTE: • Due to standardization, replacements in • Items marked “*” are not stocked since When indicating parts by reference the parts list may be different from the they are seldom required for routine service.
  • Page 22 http://www.xiaoyu163.com MAIN 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C607 1-164-344-11 CERAMIC CHIP 0.068uF Q105 8-729-230-72 TRANSISTOR 2SA1362YG C608 1-164-344-11 CERAMIC CHIP 0.068uF Q106 8-729-230-63 TRANSISTOR 2SC4116-YG C609 1-164-505-11 CERAMIC CHIP 2.2uF Q107 8-729-402-96 TRANSISTOR UN5114...
  • Page 23 http://www.xiaoyu163.com MAIN 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R129 1-216-009-00 RES,CHIP 1/10W < SWITCH > R130 1-216-061-00 METAL CHIP 3.3K 1/10W R131 1-216-065-00 RES,CHIP 4.7K 1/10W S101 1-771-678-11 SWITCH, SLIDE (REC/PB) R132 1-216-009-00 RES,CHIP 1/10W...
  • Page 24 TCM-50DV 3 7 63 1515 0 L 13942296513 u163 Sony Corporation 99B0486-1 Printed in Japan C1999. 2 9-926-919-11 Personal A&V Products Company Published by Quality Engineering Dept. – 28 – (Shinagawa) http://www.xiaoyu163.com...
  • Page 25 TCM-50DV 3 7 63 1515 0 US Model Canadian Model SERVICE MANUAL AEP Model E Model Tourist Model Ver 1.1 2000. 08 SUPPLEMENT-1 File this supplement with the service manual. Subject : 1. Change of MAIN board 2. Change of Capstan/Reel Motor (SPM-00025) This service manual supplement-1 only describes the differences between the new and former boards.
  • Page 26 http://www.xiaoyu163.com 3 7 63 1515 0 1. Changes to the Board As the motor is changed, the main board is to be changed from the board with the suffix No.-11 or -12 to the board with No.-21. When only replacing the motor or main board by a new part, replace the appropriate components on the main board. (For details, refer to “2.
  • Page 27 http://www.xiaoyu163.com 3 7 63 1515 0 1-3. Schematic Diagram FORMER TYPE NEW TYPE Page (Board with the suffix No. -11 or -12) (Board with the suffix No. -21) TAPE SPEED TAPE SPEED REC TIME REC TIME NORMAL NORMAL DOUBLE DOUBLE SPEED CONTROL SPEED CONTROL 1-4.
  • Page 28 TCM-50DV 3 7 63 1515 0 2. Replacing the Board/Motor When replacing the board or motor only, the following parts are required: 2-1. Replacing the board (when replacing the board with the suffix No. -11 or -12 by that with -21 without...

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