XR-C7220, XR-C7300, XR-C7300W - Sony Car Audio Service Manual (repair manual). Page 2

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Location of Controls .......................................................

3

Setting the Clock .............................................................

3

Installation .......................................................................

4

Connections .....................................................................

6

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8

........... 10

....................... 13

Test Mode ........................................................................ 13
Tape Deck Section .......................................................... 13
Tuner Section .................................................................. 14

6-1. Note for Printed Wiring Boards and

Schematic Diagrams ....................................................... 17

6-2. Schematic Diagram – MAIN Section (1/3) – ................. 19
6-3. Schematic Diagram – MAIN Section (2/3) – ................. 21
6-4. Schematic Diagram – MAIN Section (3/3) – ................. 23
6-5. Printed Wiring Board

– MAIN Board (Component Side) – .............................. 25

6-6. Printed Wiring Board

– MAIN Board (Conductor Side) – ................................ 27

6-7. Printed Wiring Boards – PANEL Section – ................... 29
6-8. Schematic Diagram – PANEL Section – ........................ 31
6-9. IC Pin Function Description ........................................... 35

................................................ 39

............................... 42

• 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.

• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-

aged by heat.