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Extracted text from sony tcm 459 v service manual (Ocr-read)
Page 1
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SECTION 1
GENERAL
TABLE OF CONTENTS
1. GENERAL
................................................................... 2
2. DISASSEMBLY ......................................................... 3
3. MECHANICAL ADJUSTMENTS ....................... 5
4. ELECTRICAL ADJUSTMENTS ......................... 6
5. DIAGRAMS
5-1. Block Diagram ................................................................ 7
5-2. Printed Wiring Boards ..................................................... 9
5-3. Schematic Diagram ......................................................... 13
6. EXPLODED VIEWS ................................................ 16
7. ELECTRICAL PARTS LIST ............................... 19Flexible Circuit Board Repairing
¥ Keep the temperature of the soldering iron around 270 ûC dur-
ing repairing.
¥ Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
¥ Be careful not to apply force on the conductor when soldering
or unsoldering.
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.
TAPE COUNTER EAR
MIC
VOL
Flat mic
VOR (TCM-459V)
MIC SENS (TCM-459V)
BATT/REC r REC
p STOP
( PLAY
0 REW/REVIEW
) FF/CUE
PAUSE c SPEED CONTROL
DC IN 3V
¥ Parts Identification
Page 2
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SECTION 2
DISASSEMBLY
CABINET (REAR), CASSETTE LID
Note: Follow the disassembly procedure in the numerical order given. ¥ This set can be disassembled in the order shown below.
SET
CABINET (REAR)
MAIN BOARD BELT
CASSETTE LID
MECHANISM DECK
(MT-459V-118)
8 cassette lid
5 strap
3 two claws
2 screw
4 cabinet (rear)
1 three screws
(B1.7 ´ 10)
7 boss
7 boss
9 cassette spring
3claw 6 flexible board
(CN102)