3
1.
GENERAL
Location of controls ........................................................
4
Resetting the unit ............................................................
4
Detaching the front panel ................................................
4
Preparing the rotary commander ....................................
4
Setting the clock ..............................................................
4
Installation .......................................................................
5
Connections .....................................................................
7
2.
DISASSEMBLY
.........................................................
9
3.
ELECTRICAL ADJUSTMENTS
Test Mode ........................................................................ 15
MD Section ..................................................................... 15
Tuner Section .................................................................. 15
4.
DIAGRAMS
4-1. Block Diagram – SERVO Section – ............................... 19
4-2. Block Diagram – TUNER Section – .............................. 20
4-3. Block Diagram – MAIN Section – ................................. 21
4-4. Block Diagram
– DISPLAY/KEY CONTROL Section – ........................ 22
4-5. Block Diagram
– BUS CONTROL/POWER SUPPLY Section – ........... 23
4-6. Note for Printed Wiring Boards and
Schematic Diagrams ....................................................... 24
4-7. Printed Wiring Board – SERVO/SENSOR Boards – ..... 25
4-8. Schematic Diagram
– SERVO (1/2)/SENSOR Boards – ............................... 26
4-9. Schematic Diagram – SERVO Board (2/2) – ................. 27
4-10. Printed Wiring Board
– MAIN Board (Component Side) – .............................. 28
4-11. Printed Wiring Board
– MAIN Board (Conductor Side) – ................................ 29
4-12. Schematic Diagram – MAIN Board (1/5) – ................... 30
4-13. Schematic Diagram – MAIN Board (2/5) – ................... 31
4-14. Schematic Diagram – MAIN Board (3/5) – ................... 32
4-15. Schematic Diagram – MAIN Board (4/5) – ................... 33
4-16. Schematic Diagram – MAIN Board (5/5) – ................... 34
4-17. Printed Wiring Board – POWER Board – ...................... 36
4-18. Schematic Diagram – POWER Board – ......................... 37
4-19. Printed Wiring Board – DISPLAY Board – ................... 38
4-20. Schematic Diagram – DISPLAY Board – ...................... 39
4-21. Printed Wiring Board – RELAY Board – ....................... 40
4-22. Schematic Diagram – RELAY Board – .......................... 41
4-23. IC Pin Function Description ........................................... 49
5.
EXPLODED VIEWS
................................................ 63
6.
ELECTRICAL PARTS LIST
............................... 67
TABLE OF CONTENTS
Summary of Contents for MDX-C8970
Page 4: ...4 SECTION 1 GENERAL This section is extracted from instruction manual ...
Page 5: ...5 ...
Page 6: ...6 ...
Page 7: ...7 ...
Page 8: ...8 ...
Page 18: ...18 ...
Page 41: ...41 MDX C8970 4 22 SCHEMATIC DIAGRAM RELAY Board Page 39 Page 33 ...