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SERVICE MANUAL
STEREO CASSETTE-CORDER
US Model
Canadian Model
AEP Model
E Model
Chinese Model
SPECIFICATIONS
TCS-30D
Model Name Using Similar Mechanism
NEW
Tape Transport Mechanism Type
MT-30D-118
Specifications
Recording system
4-track 2 channel stereo
Tape speed
4.8 cm/s or 2.4 cm/s
Frequency range
Recording: 250-6,300Hz
Playback: 50-14,000Hz
using nomal (TYPE I) cassette
(with REC TIME switch at
"NORMAL")
Speaker
Approx. 3.6 cm (1 7/
16 in.) dia.
Power output
350 mW (at 10 % harmonic
distortion)
Input
Microphone input jack (minijack)
sensitivity 0.3 mV for 3 kilo-ohms
or lower impedance microphone
Output
i
(headphones) jack (minijack) for
8-300 ohms headphones
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)
× 2/
External DC 3 V power sources
Dimensions (w/h/d) (incl. projecting
parts and controls)
Approx. 91
× 112 × 39.2 mm
(3 5/
8 × 4
1/
2 × 1
9/
16 in.)
Mass
Approx. 170 g (6.0 oz.)
Supplied accessories
Headphones (1)
Stereo microphones (1)
Design and specifications are subject
to change without notice.
Battery life (Approx. hours) (EIAJ*)
Sony
Sony
alkaline
R6P
LR6 (SG)
(SR)
Playback
92
Recording
12
3
* Measured value by the standard of
EIAJ (Electronic Industries
Association of Japan). (Using a Sony
HF series cassette tape)
Note
The battery life may shorten
depending on the operation of the
unit.
Ver 1.0 2000. 03


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­ 2 ­
TABLE OF CONTENTS
1.
SERVICING NOTES ............................................... 3
2.
GENERAL ................................................................... 4
3.
DISASSEMBLY ......................................................... 5
4.
MECHANICAL ADJUSTMENTS ....................... 8
5.
ELECTRICAL ADJUSTMENTS ......................... 9
6.
DIAGRAMS
6-1. Block Diagram ................................................................ 11
6-2. Printed Wiring Boards ..................................................... 13
6-3. Schematic Diagram ......................................................... 15
7.
EXPLODED VIEWS ................................................ 18
8.
ELECTRICAL PARTS LIST ............................... 21
Notes on chip component replacement
· Never reuse a disconnected chip component.
· Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.


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­ 3 ­
SECTION 1
SERVICING NOTES
THE OPERATION CHECK AND THE VOLTAGE CHECK
WHEN THE MAIN BOARD REMOVED
This set detects which button of [REC], [PLAY], [FF], or [REW]
was pressed using the POWER switch (S303).
However, this button operation cannot be detected if the MAIN
board is removed because the POWER switch (S303) is mounted
on the MAIN board.
Therefore, if the operation check and the voltage check are per-
formed with the MAIN board removed, the POWER switch (S303)
must be fixed to ON state.
on
S303
­ MAIN BOARD (Conductor Side) ­
TAP201
TAP101
TAP202
TAP102
TAP201
TAP101
TAP202
TAP102
IC302
­ MAIN BOARD (Conductor Side) ­
CHANGE THE SPECIFICATION (US Model Only)
For the mounted MAIN board (A-3021-325-A), the TAP101 and
201 patterns are opened.
This specification is for the Canadian, AEP, E, and Chinese mod-
els.
Accordingly for the US model, short the TAP101 and 201 with a
solder to change the specification.


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­ 4 ­
SECTION 2
GENERAL
This section is extracted from
instruction manual.
B
A
A
DC IN 3V
AC power adaptor
Adaptador de alimentación
de CA
Transformador de corrente
CA
REC TIME
MIC
z REC
x STOP
m REW/
REVIEW
PAUSE .
A
BATT
i
Built-in microphone
Micrófono incorporado
Microfone incorporado
Side A
Cara A
Tab for side A
Lengüeta de la cara A
Patilha do lado A
E
C
D
Capstan
Cabrestante
Cabrestante
Erase head
Cabezal de borrado
Cabeça de eliminaçao
Pinch-roller
Rodillo de
apriete
Roletes
Cotton swab
Bastoncillo de
algodón
Cotonete
Record/playback head
Cabezal de grabación/
reproducción
Cabeça de gravação
MIC (PLUG IN POWER)
VOL
Lever
Palanca
Alavanca
N PLAY
x STOP
m REW/REVIEW
PAUSE .
SPEED CONTROL
M FF/CUE


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­ 5 ­
CABINET (REAR), "LID BLOCK ASSY, CASSETTE"
Note: Follow the disassembly procedure in the numerical order given.
SECTION 3
DISASSEMBLY
· This set can be disassembled in the order shown below.
SET
CABINET (REAR),
"LID BLOCK ASSY, CASSETTE"
MAIN BOARD,
MECHANISM DECK (MT-30D-118)
BELT
8
lid block assy, cassette
INSTALLATION "SPRING, CASSETTE"
cabinet (front)
5
strap, hand
3
claw
3
four claws
2
screw
(IB lock)
4
cabinet (rear)
1
three screws
(B1.7
× 10)
7
boss
7
boss
6
Remove five solders.
lid, cassette
spring, cassette
spring, cassette