Sony TCM-400DV Service Manual

SERVICE MANUAL
CASSETTE-CORDER
E Model
Chinese Model
Tourist Model
Model Name Using Similar Mechanism New
Tape Transport Mechanism Type MT-400-175
SPECIFICATIONS
TCM-400DV
Ver 1.0 2001.10
9-873-336-01
2001J0200-1
© 2001. 10
Sony Corporation
Personal Audio Company
Published by Sony Engineering Corporation
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 nomal (TYPE
I) cassette (with REC TIME switch
at “NORMAL”)
Speaker
Approx. 3.6 cm (1
7
/
16
in.) dia.
Power output
250 mW (at 10 % harmonic
distortion)
Input
Microphone input jack (minijack)
sensitivity 0.2 mV for 3 kΩ or
lower impedance microphone
Output
Earphone jack (minijack) for 8 -300
Ω earphone
Variable range of the tape speed
From approx. +30% to –15% (with
REC TIME switch at “NORMAL”)
Power requirements
3 V DC batteries R6 (AA) x 2/
External DC 3 V power sources
Dimensions (w/h/d) (incl. projecting parts and controls)
Approx. 86.7 x 114.4 x 35.4 mm
(3
1
/
2
x 4
5
/
8
x 1
7
/
16
in.)
Mass
Approx. 160 g (5.7 oz.) (main unit
only)
Design and specifications are subject to change without notice.
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TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

Sony TCM-400DV Specifications

General

Reverse	No
Autostop	Yes
I/O ports	DC
Headphone outputs	1
Product color	Silver
Battery type	AM-3 (LR 06)
Battery life (max)	16 h
Number of batteries supported	2
Loudspeaker diameter	36 mm

Weight and Dimensions

Weight	160 g
Dimensions (WxDxH)	86.7 x 35.4 x 114.4 mm

Summary

Section 2 Disassembly

Cabinet (Rear) and Cassette Holder Assy

Step-by-step guide for disassembling the rear cabinet and cassette holder assembly.

Main Board and Mechanism Deck Disassembly

Section 3 Mechanical Adjustments

Adjustment Procedures and Specifications

Covers cleaning, demagnetization, torque, and tape tension measurement for adjustments.

Section 4 Electrical Adjustments

Test Setup and Tape Speed Adjustment

Details on test tape, settings, and procedures for adjusting tape speed.

Section 5 Diagrams

Block Diagrams

High-level functional block diagram of the TCM-400DV.

Main Board Printed Wiring

Layout of components and traces on the main printed circuit board.

Schematic Diagram

Detailed circuit schematic of the TCM-400DV.

LED Board and IC Diagrams

Section 6 Exploded Views

Cabinet Section Exploded View

Cassette Holder Section Exploded View

Mechanism Deck Section 1 Exploded View

Mechanism Deck Section 2 Exploded View

Section 7 Electrical Parts List

Main Board Components