Table Of Contents; Servicing Notes - Sony WM-SR1 Service Manual

TABLE OF CONTENTS

1. SERVICING NOTES
2. GENERAL
................................................................... 4
3. DISASSEMBLY
......................................................... 5
4. MECHANICAL ADJUSTMENTS
5. ELECTRICAL ADJUSTMENTS
Tape Deck Section .......................................................... 9
Tuner Section .................................................................. 10
6. DIAGRAMS
6-1. Block Diagram - TUNER Section - ............................. 11
6-2. Block Diagram - MAIN Section - ................................ 13
6-3. Printed Wiring Board ...................................................... 18
6-4. Schematic Diagram ......................................................... 21
7. EXPLODED VIEWS
8. ELECTRICAL PARTS LIST
............................................... 2
....................... 9
................................................ 27
............................... 29

SERVICING NOTES

In this set, the S301 (TAPE POWER switch) detects REC/PLAY-
BACK 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 S301 at turn on.
- MAIN BOARD (Component Side) -
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.
Flexible Circuit Board Repairing
• Keep the temperature of the soldering iron around 270 ˚C 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.
- 2 -
SECTION 1
S301