Sony TCM-453-VK Service manual
TCM-453V/454VK
SERVICE MANUAL
Ver 1.1 1998. 3
Photo: TCM-454VK
SPECIFICATIONS
US Model
Canadian Model
AEP Model
(TCM-453V/454VK)
E Model
East European Model
Chinese Model
(TCM-453V)
Model Name Using Similar Mechanism NEW
Tape Transport Mechanism Type MT-453V-118
MICROFILM
CASSETTE-CORDER
SECTION 1
SERVICING NOTES
TABLE OF CONTENTS
1. SERVICING NOTES ............................................... 2
2. GENERAL
Preparing a Power Source ............................................... 3
Recording ........................................................................ 3
Playing a Tape ................................................................. 3
Maintenance .................................................................... 3
3. DISASSEMBLY ......................................................... 4
4. MECHANICAL ADJUSTMENTS....................... 7
5. ELECTRICAL ADJUSTMENTS......................... 8
6. DIAGRAMS
6-1. Block Diagram ................................................................ 9
6-2. Printed Wiring Board ...................................................... 11
6-3. Schematic Diagram ......................................................... 13
7. EXPLODED VIEWS ................................................ 16
8. ELECTRICAL PARTS LIST ............................... 19
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
S102
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.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK ! OR DOTTED
LINE WITH MARK ! ON THE SCHEMATIC DIAGRAMS
AND IN THE PARTS LIST ARE CRITICAL TO SAFE
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFIÉS P AR UNE MARQUE !
SUR LES DIAGRAMMES SCHÉMA TIQ UES ET LA LISTE
DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ
DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES SONY DONT LES
NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
– 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
MAIN BOARD, MECHANISM DECK (MT-453V-118)
9
cassette lid
8
cassette spring
3
four claws
2
screw
(IB lock)
3
claw
1
three screws
(B1.7
7
boss
6
Remove the two solders
speaker cords.
5
strap
4
cabinet (rear)
×
10)
– 4 –
MAIN BOARD, MECHANISM DECK (MT-453V-118)
5
three screws
(IB lock)
1
Remove the two solders
electret condenser microphone
(MIC901).
6
claw
7
mechanism deck
(MT-453V-118)
1
Remove the two solders
motor (M901).
BELT
4
MAIN board
1
Remove the two solders
magnetic head (HRP901).
1
belt (capstan)
3
screw
(M1.4)
2
belt (FR)
2
screw
(1.7)
– 5 –
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