Sony TCM-323 Service manual
TCM-323
SERVICE MANUAL
Ver 1.2 2004.03
SPECIFICATIONS
US Model
Canadian Model
AEP Model
E Model
Model Name Using Similar Mechanism NEW
Tape Transport Mechanism Type MT-323-118
9-923-304-12 Sony Corporation
2004C05-1 Personal Audio Company
© 2004.03 Published by Sony Engineering Corporation
CASSETTE-CORDER
SECTION 1
SERVICING NOTES
TABLE OF CONTENTS
1. SERVICING NOTES ............................................... 2
2. GENERAL .................................................................. 3
3. DISASSEMBLY ......................................................... 4
4. MECHANICAL ADJUSTMENTS....................... 7
5. ELECTRICAL ADJUSTMENTS......................... 8
6. DIAGRAMS
6-1. Block Diagram ................................................................ 9
6-2. Schematic Diagram ......................................................... 11
6-3. Printed Wiring Board ...................................................... 13
7. EXPLODED VIEWS ................................................ 14
8. ELECTRICAL PARTS LIST ............................... 17
In this set, the S102 (power) detects REC/PLAYBACK on.
It is mounted on the MAIN board, and therefore the REC/PLAYBACK on cannot be detected with the MAIN board removed.
When making an operation check and voltage check of mechanical deck with the MAIN board removed, fix the S102 at turn on.
[MAIN BOARD] (Conductor Side)
IC101
IC102
IC601
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be damaged by heat.
– 2 –
SECTION 2
GENERAL
This section is extracted from
instruction manual.
– 3 –
• This set can be disassembled in the order shown below.
SECTION 3
DISASSEMBLY
SET
Note: Follow the disassembly procedure in the numerical order given.
CABINET (REAR), CASSETTE LID
BELT
CABINET (REAR), CASSETTE LID
7
boss
6
Remove the two solders
speaker cords.
MAIN BOARD, MECHANISM DECK (MT-323-118)
9
cassette lid
8
cassette spring
3
four claws
2
screw
(IB lock)
3
claw
1
three screws
(B1.7
7
5
strap
4
cabinet (rear)
×
9)
boss
– 4 –
MAIN BOARD, MECHANISM DECK (MT-323-118)
5
three screws
(IB lock)
1
Remove the two solders
electret condenser microphone
(MIC901).
6
claw
7
mechanism deck
(MT-323-118)
1
Remove the two solders
motor (M901).
BELT
4
MAIN board
1
Remove the two solders
magnetic head (HRP901).
3
1
belt (capstan)
screw
(M1.4)
2
belt (FR)
2
screw
(1.7)
– 5 –
INSTALLATION MAIN BOARD
d
On installation MAIN board, adjust to the S101 and
the S102.
screw
(1.7)
screw
(M1.4)
S102
(POWER)
MAIN boar
S101 (REC/PB)
lever (REC)
– 6 –
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