Read Sony MDX-C7900 / MDX-C7900R Service Manual online
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TABLE OF CONTENTS
1.
SERVICE NOTE
....................................................... 3
2.
GENERAL
Location of Controls (MDX-C7900) .............................. 4
Location of Controls (MDX-C7900R) ........................... 5
Resetting the Unit ........................................................... 6
Detaching the Front Panel ............................................... 6
Preparing the Rotary Commander .................................. 6
Setting the Clock ............................................................. 6
Installation (US, Canadian) ............................................ 7
Installation (AEP, UK, E) ............................................... 8
Connections ..................................................................... 10
Location of Controls (MDX-C7900R) ........................... 5
Resetting the Unit ........................................................... 6
Detaching the Front Panel ............................................... 6
Preparing the Rotary Commander .................................. 6
Setting the Clock ............................................................. 6
Installation (US, Canadian) ............................................ 7
Installation (AEP, UK, E) ............................................... 8
Connections ..................................................................... 10
3.
DISASSEMBLY
......................................................... 13
4.
ELECTRICAL ADJUSTMENTS
Test Mode ........................................................................ 18
MD Section ..................................................................... 18
Tuner Section .................................................................. 18
MD Section ..................................................................... 18
Tuner Section .................................................................. 18
5.
DIAGRAMS
5-1. Block Diagram – SERVO Section – ............................... 21
5-2. Block Diagram – MAIN Section – ................................. 23
5-3. Block Diagram
5-2. Block Diagram – MAIN Section – ................................. 23
5-3. Block Diagram
– DISPLAY/KEY CONTROL Section – ........................ 25
5-4. Block Diagram
– BUS CONTROL/POWER SUPPLY Section – ........... 27
5-5. Printed Wiring Boards
– MECHANISM DECK Section – ................................. 29
5-6. Schematic Diagram
– MECHANISM DECK Section – ................................. 31
5-7. Schematic Diagram – MAIN Section – .......................... 35
5-8. Printed Wiring Board – MAIN Section – ....................... 39
5-9. Printed Wiring Board – PANEL Section – ..................... 43
5-10. Schematic Diagram – PANEL Section – ........................ 45
5-11. IC Pin Function Description ........................................... 55
5-8. Printed Wiring Board – MAIN Section – ....................... 39
5-9. Printed Wiring Board – PANEL Section – ..................... 43
5-10. Schematic Diagram – PANEL Section – ........................ 45
5-11. IC Pin Function Description ........................................... 55
6.
EXPLODED VIEWS
................................................ 64
7.
ELECTRICAL PARTS LIST
............................... 68
Ver 1.1
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