Sony XA-V7W, Service Manual

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2
XAV-7W
1. SERVICING NOTES
............................................... 3
2. GENERAL
................................................................... 5
3. DISASSEMBLY
3-1. Disassembly Flow ........................................................... 9
3-2. Front Panel Assy ............................................................. 9
3-3. Case (Upper) Assy .......................................................... 10
3-4. MAIN Board ................................................................... 11
3-5. Motor Assy (M701) ......................................................... 12
3-6. Setting of Lead from Motor Assy (M701) ..................... 12
3-7. Monitor ............................................................................ 13
3-8. Monitor (F)/(R) Cabinet Assy ......................................... 13
3-9. LCD ................................................................................. 14
3-10. MONITOR Board ........................................................... 14
4. ASSEMBLY
4-1. Assembly of Flat Cable ................................................... 15
5. ELECTRICAL ADJUSTMENTS
......................... 16
6. DIAGRAMS
6-1. Block Diagram – MAIN Section – ................................ 21
6-2. Block Diagram
– DISPLAY/BUS CONTROL Section – ........................ 22
6-3. Block Diagram – MONITOR Section – ........................ 23
6-4. Block Diagram – POWER SUPPLY Section – ............. 24
6-5. Note for Printed Wiring Boards and
Schematic Diagrams ....................................................... 25
6-6. Schematic Diagram – FM/MAIN (1/5) Boards – ......... 27
6-7. Schematic Diagram – MAIN Board (2/5) – .................. 28
6-8. Schematic Diagram – MAIN Board (3/5) – .................. 29
6-9. Schematic Diagram – MAIN Board (4/5) – .................. 30
6-10. Schematic Diagram – MAIN Board (5/5) – .................. 31
6-11. Printed Wiring Board
– MAIN Board (Component Side) – .............................. 32
6-12. Printed Wiring Boards
– FM/MAIN (Conductor Side) Boards – ....................... 33
6-13. Printed Wiring Board – FRONT Board – ...................... 34
6-14. Schematic Diagram – FRONT Board – ......................... 35
6-15. Printed Wiring Board
– MONITOR Board (Component Side) – ...................... 36
6-16. Printed Wiring Board
– MONITOR Board (Conductor Side) – ........................ 37
6-17. Schematic Diagram – MONITOR Board (1/3) – .......... 38
6-18. Schematic Diagram – MONITOR Board (2/3) – .......... 39
6-19. Schematic Diagram – MONITOR Board (3/3) – .......... 40
6-20. Printed Wiring Boards – ANGLE/KEY Boards – ......... 42
6-21. Schematic Diagram – ANGLE/KEY Boards – ............. 43
6-22. Printed Wiring Board – MOTOR Board – ..................... 44
6-23. Schematic Diagram – MOTOR Board – ....................... 45
6-24. Printed Wiring Boards – PULSE/SWITCH Boards – ... 46
6-25. Schematic Diagram – PULSE/SWITCH Boards – ........ 46
6-26. IC Pin Function Description ........................................... 52
7. EXPLODED VIEWS
7-1. Front Panel Section ......................................................... 61
7-2. Case (Upper) Assy Section ............................................. 62
7-3. Open Close Motor Section .............................................. 63
7-4. Case (Lower) Assy Section ............................................. 64
7-5. Monitor Section ............................................................... 65
8. ELECTRICAL PARTS LIST
............................... 66
TABLE OF CONTENTS
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
Connection box
Inputs Video/audio
(Sony bus compatible, 1)
BUS control input connector (1)
Video/audio (2)
Outputs Video/audio (1)
Connection to main unit
Dedicated 22-pin connector
Dimensions Approx. 136
×
77
×
30 mm
(W
×
H
×
D)
Mass
Approx. 260 g
Design and specifications are subject to
change without notice.
Ver 1.1