XR-C6120 - Sony Car Audio Service Manual (repair manual). Page 2

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

3

Resetting the Unit ...........................................................

4

Detaching the Front Panel ...............................................

4

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

4

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

5

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

6

.........................................................

9

........... 10

....................... 13

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

6-1. Note for Printed Wiring Boards and

Schematic Diagrams ....................................................... 16

6-2. Printed Wiring Board – MAIN Board – ......................... 17
6-3. Schematic Diagram – MAIN Board (1/2) – ................... 19
6-4. Schematic Diagram – MAIN Board (2/2) – ................... 21
6-5. Printed Wiring Board  – KEY Board – ........................... 23
6-6. Schematic Diagram – KEY Board – .............................. 25
6-7. IC Pin Function Description ........................................... 30

................................................ 33

............................... 36

• 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.