Sony m 437 service manual

Page 2

TABLE OF CONTENTS Flexible Circuit Board Repalrlng
- Keep the temperature of the soldering iron around 270°C during

Specifications .......................................................................... 1 repairing.

- Do not touch the soldering iron on the same conductor of the
1. GENERAL ....................................................................... 2 leclflt board (within 3 times).

' Be careful not to apply force on the conductor when soldenng or
2. DISASSEMBLY unsoldering.

2-1. Cassette and Battery Lids Removal ..
2-2. Cabinet Removal ...............
2-3. Mechanism Deck Removal

Lu

Notes on chip component replacement
- Never reuse a disconnected chip component.
. Notice that the minus side of a tantalum capacitor may be dam-
3. ADJUSTMENTS aged by heat.
3-1. Mechanical Adjustments
3-2. Electrical Adjustments

4. DIAGRAMS
4-1. Printed Wiring Boards . .
4-2 Schematic Diagram ........

5. EXPLODED VIEWS
5-1. Front Section ..................
5~2. Mechanism Deck Section ..

6. ELECTRICAL PARTS LIST .

SECTION 1
GENERAL

0 Parts ldentlflcatlon

EAFI

VOL
Microphone

BATI'
O REC
4- PAUSE

TAPE
SPEED
« CUE/REVIEW »

TAPE -
COUNTER I:
(M-529V/

539w VCR

579V)