Read Sony MDX-C7970 / MDX-C7970R / MDX-C8970 Service Manual online
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1.
GENERAL
Location of Controls .......................................................
4
Resetting the Unit ...........................................................
5
Detaching the Front Panel ...............................................
5
Preparing the Rotary Commander ..................................
5
Setting the Clock .............................................................
5
Using the Rotary Commander ........................................
5
Adjusting the Sound Characterisitics .............................
5
Attenuating the Sound ....................................................
5
Changing the Sound and Display Settings .....................
6
Boosting the Bass Sound ................................................
6
Installation .......................................................................
7
Connections .....................................................................
8
2.
DISASSEMBLY
......................................................... 12
3.
ELECTRICAL ADJUSTMENTS
Test Mode ........................................................................ 18
MD Section ..................................................................... 18
Tuner Section .................................................................. 18
MD Section ..................................................................... 18
Tuner Section .................................................................. 18
4.
DIAGRAMS
4-1. Block Diagram – SERVO Section – ............................... 23
4-2. Block Diagram – TUNER Section – .............................. 25
4-3. Block Diagram – MAIN Section – ................................. 27
4-4. Block Diagram
4-2. Block Diagram – TUNER Section – .............................. 25
4-3. Block Diagram – MAIN Section – ................................. 27
4-4. Block Diagram
– DISPLAY/KEY CONTROL Section – ........................ 29
4-5. Block Diagram
– BUS CONTROL/POWER SUPPLY Section – ........... 31
4-6. Note for Printed Wiring Boards and
Schematic Diagrams ....................................................... 33
4-7. Printed Wiring Boards – SERVO Section – ................... 35
4-8. Schematic Diagram – SERVO Board (1/3) – ................. 37
4-9. Schematic Diagram – SERVO Board (2/3) – ................. 39
4-10. Schematic Diagram – SERVO Board (3/3) – ................. 41
4-11. Printed Wiring Board
4-8. Schematic Diagram – SERVO Board (1/3) – ................. 37
4-9. Schematic Diagram – SERVO Board (2/3) – ................. 39
4-10. Schematic Diagram – SERVO Board (3/3) – ................. 41
4-11. Printed Wiring Board
– MAIN Board (Component Side) – .............................. 43
4-12. Printed Wiring Board
– MAIN Board (Conductor Side) – ................................ 45
4-13. Schematic Diagram – MAIN Board (1/4) – ................... 47
4-14. Schematic Diagram – MAIN Board (2/4) – ................... 49
4-15. Schematic Diagram – MAIN Board (3/4) – ................... 51
4-16. Schematic Diagram – MAIN Board (4/4) – ................... 53
4-17. Printed Wiring Board – DISPLAY Board – ................... 55
4-18. Schematic Diagram – DISPLAY Board – ...................... 57
4-19. Printed Wiring Board – SUB Board – ............................ 59
4-20. Schematic Diagram – SUB Board – ............................... 61
4-21. IC Pin Function Description ........................................... 69
4-14. Schematic Diagram – MAIN Board (2/4) – ................... 49
4-15. Schematic Diagram – MAIN Board (3/4) – ................... 51
4-16. Schematic Diagram – MAIN Board (4/4) – ................... 53
4-17. Printed Wiring Board – DISPLAY Board – ................... 55
4-18. Schematic Diagram – DISPLAY Board – ...................... 57
4-19. Printed Wiring Board – SUB Board – ............................ 59
4-20. Schematic Diagram – SUB Board – ............................... 61
4-21. IC Pin Function Description ........................................... 69
5.
EXPLODED VIEWS
................................................ 79
6.
ELECTRICAL PARTS LIST
............................... 83
TABLE OF CONTENTS
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