Sony U-Ceiver ICB-U655, Руководство по обслуживанию

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TABLE OF CONTENTS
1. SERVICING NOTES
............................................... 3
2. GENERAL
Before You Begin ............................................................ 4
Features ........................................................................... 4
Precautions ...................................................................... 4
Power Sources ................................................................. 5
Operation ......................................................................... 5
Other features .................................................................. 5
3. DISASSEMBLY
......................................................... 6
4. ELECTRICAL ADJUSTMENTS
......................... 7
5. DIAGRAMS
5-1. Block Diagram ................................................................ 9
5-2. Printed Wiring Boards .................................................... 12
5-3. Schematic Diagram ......................................................... 15
5-4. IC Pin Function Description ........................................... 22
6. EXPLODED VIEWS
................................................ 24
7. ELECTRICAL PARTS LIST
............................... 26
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.