– 2 –
TABLE OF CONTENTS
Flexible Circuit Board Repairing
•
Keep the temperature of the soldering iron around 270˚C during
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.
1. SERVICING NOTE
.....................................................
3
2. GENERAL
Operating the Unit ................................................................... 4
3. DISASSEMBLY
3-1. Cabinet, Cassette Lid Assy ................................................. 6
3-2. MAIN Board, Cassette Machanism .................................... 7
3-3. Belt ...................................................................................... 8
3-4. Head .................................................................................... 8
3-5. Motor, DC ........................................................................... 9
3-6. Note for Installation of Main Board .................................... 9
4. MECHANICAL ADJUSTMENTS
............................
10
5. ELECTRICAL ADJUSTMENTS
.............................
10
6. DIAGRAMS
6-1. Block Diagram .................................................................. 11
6-2. Printed Wiring Board –Main Section– .............................. 13
6-3. Schematic Diagram –Main Section– ................................. 15
6-4. Printed Wiring Board –Panel Section– ............................. 17
6-5. Schematic Diagram –Panel Section– ................................ 18
6-6. IC Pin Description ............................................................. 20
7. EXPLODED VIEWS
7-1. Case Section ...................................................................... 21
7-2. Panel Section ..................................................................... 22
7-3. Mechanism Deck Section-1 .............................................. 23
7-4. Mechanism Deck Section-2 .............................................. 24
8. ELECTRICAL PARTS LIST
....................................
25
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