XR-C8220R - Sony Car Audio Service Manual (repair manual)

MICROFILM

AEP Model

UK Model

Model Name Using Similar Mechanism

XR-C8100R

Tape Transport Mechanism Type

MG-25D-136

For RM-X4S (Remote Commander),
please refer to RM-X4S Service Manual
(9-925-698-

∏

) previously issued.

Dolby noise reduction manufactured under license
from Dolby Laboratories Licensing Corporation.
“DOLBY” and the double-D symbol 

a

 are trade-

marks of Dolby Laboratories Licensing Corporation.

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• 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.

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

2

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

3

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

4

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

4

Other Functions ...............................................................

4

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

6

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

7

......................................................... 12

........... 14

....................... 17

Test Mode ........................................................................ 18
Tape Deck Section .......................................................... 18
Tuner Section .................................................................. 19

7-1. Block Diagram – TUNER Section – .............................. 23
7-2. Block Diagram – TAPE Section – .................................. 25
7-3. Block Diagram – MAIN Section – ................................. 27
7-4. Block Diagram

– DISPLAY/KEY CONTROL Section – ........................ 29

7-5. Block Diagram

– BUS CONTROL/POWER SUPPLY Section – ........... 31

7-6. Note for Printed Wiring Boards and

Schematic Diagrams ....................................................... 33

7-7. Printed Wiring Board

– MAIN Board (Component Side) – .............................. 35

7-8. Printed Wiring Board

– MAIN Board (Conductor Side) – ................................ 37

7-9. Schematic Diagram – MAIN Board (1/4) – ................... 39
7-10. Schematic Diagram – MAIN Board (2/4) – ................... 41
7-11. Schematic Diagram – MAIN Board (3/4) – ................... 43
7-12. Schematic Diagram – MAIN Board (4/4) – ................... 45
7-13. Printed Wiring Board – KEY Board – ............................ 47
7-14. Schematic Diagram – KEY Board – .............................. 49
7-15. Printed Wiring Boards – SUB/INVERTER Boards – .... 51
7-16. Schematic Diagram

– SUB/INVERTER Boards – .......................................... 52

7-17. IC Pin Function Description ........................................... 58

................................................ 62

............................... 65

The destination is expressed with the model according to the lan-
guage of CSV (Computer Sound Voice) mounted in the set.
How to identify the model is described below.

– MAIN BOARD (Component Side) –

IC650

MSM6656A-687GS-KR1 (TYPE A: ENGLISH, FRENCH)
MSM6656A-688GS-KR1 (TYPE B: ENGLISH, GERMAN)
MSM6656A-689GS-KR1 (TYPE C: ENGLISH, SPANISH)
MSM6656A-690GS-KR1 (TYPE D: ENGLISH, ITALIAN)

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This section is extracted from
instruction manual.

– 4 –