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TABLE OF CONTENTS
1. Precautions and notices ......................................................1
2. Specification .......................................................................3
3. Control Location and Functions ........................................5
4. Disassembly instructions ...................................................9
5. General Connections & applications ...............................11
6. Electronic Circuit Description .........................................13
7. Adjustment ......................................................................
19
8. Troubleshooting
Flow
Chart
....
.........................................28
9.
Recommended Spare Parts List
........................................35
1
2
. PCB Layout
.
............................................
.
.......................
54
1
3
.
Schematic Diagram
.................................................
.
.......
57
1
4
.
Exploded Diagram
..............
...................................
.........
64
1
1
.
Block Diagram
................................
........
........................
53
ViewSonic Corporation
i
i
Confidential – Do Not Copy
A
9
0f+-1
1
0
. Electrical Parts List
.
........................................................
37
Summary of Contents for A90f+ 1
Page 57: ...12 PCB Layout ViewSonic Corporation 54 Confidential Do Not Copy A90f 1...
Page 58: ...VIDEO PWB 0414 ViewSonic Corporation 55 Confidential Do Not Copy A90f 1...
Page 59: ...KEY CONTROL PWB 0488 ViewSonic Corporation 56 Confidential Do Not Copy A90f 1...
Page 60: ...MAIN BOARD 13 Schematic Diagrams ViewSonic Corporation 57 Confidential Do Not Copy A90f 1...
Page 61: ...VIDEO ViewSonic Corporation 58 Confidential Do Not Copy A90f 1...
Page 62: ...KEY CORTROL ViewSonic Corporation 59 Confidential Do Not Copy A90f 1...
Page 63: ...POWER SUPPLY CKT ViewSonic Corporation 60 Confidential Do Not Copy A90f 1...
Page 64: ...MCU CONTROL CKT ViewSonic Corporation 61 Confidential Do Not Copy A90f 1...
Page 65: ...Time Base DeflectionCKT ViewSonic Corporation 62 Confidential Do Not Copy A90f 1...
Page 66: ...H V DYNAMIC FOCUS CKT ViewSonic Corporation 63 Confidential Do Not Copy A90f 1...
Page 67: ...14 Exploded Diagram ViewSonic Corporation 64 Confidential Do Not Copy A90f 1...