Sony XR-4803 service manual Table of Contents, Diagrams, Flexible Circuit Board Repairing

	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.

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