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MICROFILM
SERVICE MANUAL
CASSETTE-CORDER
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
SPECIFICATIONS
TCM-453V/454VK
Photo: TCM-454VK
Ver 1.1 1998. 3


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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/PLAY-
BACK on cannot be detected with the MAIN board removed.
When making an operation check and voltage check of mechani-
cal deck with the MAIN board removed, fix the S102 at turn on.
[MAIN BOARD] (Conductor Side)
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE
!
SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE
DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ
DE FONCTIONNEMENT. NE REMPLACER CES COM-
POSANTS QUE PAR DES PIÈCES SONY DONT LES
NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
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 PUB-
LISHED BY SONY.
SECTION 1
SERVICING NOTES
IC101
S102
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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SECTION 2
GENERAL
This section is extracted from
instruction manual.


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CABINET (REAR), CASSETTE LID
SECTION 3
DISASSEMBLY
Note: Follow the disassembly procedure in the numerical order given.
· This set can be disassembled in the order shown below.
9 cassette lid
8 cassette spring
5 strap
3 claw
3 four claws
2 screw
(IB lock)
4 cabinet (rear)
1 three screws
(B1.7
× 10)
7 boss
7 boss
6 Remove the two solders
speaker cords.
SET
CABINET (REAR), CASSETTE LID
MAIN BOARD, MECHANISM DECK (MT-453V-118)
BELT


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MAIN BOARD, MECHANISM DECK (MT-453V-118)
BELT
6 claw
2 screw
(1.7)
3 screw
(M1.4)
4 MAIN board
7 mechanism deck
(MT-453V-118)
5 three screws
(IB lock)
1 Remove the two solders
electret condenser microphone
(MIC901).
1 Remove the two solders
magnetic head (HRP901).
1 Remove the two solders
motor (M901).
1 belt (capstan)
2 belt (FR)