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TABLE OF CONTENTS
1. SERVICING NOTES
............................................... 3
2. GENERAL ................................................................... 4
3. DISASSEMBLY ......................................................... 5
4. MECHANICAL ADJUSTMENTS ....................... 8
5. ELECTRICAL ADJUSTMENTS ......................... 9
6. DIAGRAMS
6-1. Block Diagram ................................................................ 11
6-2. Printed Wiring Boards ..................................................... 13
6-3. Schematic Diagram ......................................................... 15
7. EXPLODED VIEWS ................................................ 18
8. ELECTRICAL PARTS LIST ............................... 21Notes 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 1
SERVICING NOTES
THE OPERATION CHECK AND THE VOLTAGE CHECK
WHEN THE MAIN BOARD REMOVED
This set detects which button of
[REC] , [PLAY] , [FF] , or [REW]
was pressed using the POWER switch (S303).
However, this button operation cannot be detected if the MAIN
board is removed because the POWER switch (S303) is mounted
on the MAIN board.
Therefore, if the operation check and the voltage check are per-
formed with the MAIN board removed, the POWER switch (S303)
must be fixed to ON state.
onS303
- MAIN BOARD (Conductor Side) -
TAP201
TAP101 TAP202
TAP102
TAP201
TAP101 TAP202
TAP102
IC302
- MAIN BOARD (Conductor Side) -
CHANGE THE SPECIFICATION (US Model Only)
For the mounted MAIN board (A-3021-325-A), the TAP101 and
201 patterns are opened.
This specification is for the Canadian, AEP, E, and Chinese mod-
els.
Accordingly for the US model, short the TAP101 and 201 with a
solder to change the specification.
