Sony XR-4803 Cassette Player User Manual


 
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TABLE OF CONTENTS
1. GENERAL ................................................................... 3
2. DISASSEMBLY ......................................................... 9
3. ASSEMBLY OF MECHANISM DECK........... 11
4. MECHANICAL ADJUSTMENTS ....................... 14
5. ELECTRICAL ADJUSTMENTS
Test Mode........................................................................ 14
Tape Deck Section .......................................................... 14
Tuner Section .................................................................. 15
6. DIAGRAMS
6-1. IC Pin Function Description ........................................... 17
6-2. Printed Wiring Board – MAIN Section – ...................... 21
6-3. Schematic Diagram – MAIN Section –.......................... 23
6-4. Printed Wiring Board – PANEL Section – .................... 27
6-5. Schematic Diagram – PANEL Section – ....................... 29
7. EXPLODED VIEWS ................................................ 33
8. ELECTRICAL PARTS LIST ............................... 36
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.
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.