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- 15 –
ViewSonic Corporation
Confidential - Do Not Cop
VA1721wmb
4. Circuit Description
4.1 LCD MONITOR DESCRIPTION
The LCD MONITOR will contain a Main Board, an Power Board, Key Board which
house the flat panel control logic, brightness control logic and DDC.
4.2 MAIN BOARD BLOCK FUNCTION DESCRIPTION
The main board contains panel control logic, brightness control logic, DDC and DC
convert DC circuit and so on.
Power Board
(Include: adapter, inverter)
Flat Panel and
CCFL backlight
Main Board
Key Board
RS232 Connector
For white balance
adjustment in factory
mode
HOST Computer
CCFL Drive.
AC-IN
100V-240V
Video signal, DDC
Monitor Block Diagram
R
G
B
H
V
SDA
SCL
OSC
Backlight and Panel
PWPC board
EPROM
EPROM
Keyboard
TSUM16AK
Содержание VA1721wmb - 17" LCD Monitor
Страница 22: ...22 ViewSonic Corporation Confidential Do Not Cop VA1721wmb Block Diagram...
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Страница 37: ...37 ViewSonic Corporation Confidential Do Not Cop VA1721wmb Sep2 Inpute the S N and execute Enter...
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Страница 39: ...39 ViewSonic Corporation Confidential Do Not Cop VA1721wmb Sep3 Key the Enter and write the data...
Страница 40: ...40 ViewSonic Corporation Confidential Do Not Cop VA1721wmb Sep4 If ddc program OK and show data compare ok...
Страница 41: ...41 ViewSonic Corporation Confidential Do Not Cop VA1721wmb 5 7 Packing Procedure...
Страница 42: ...42 ViewSonic Corporation Confidential Do Not Cop VA1721wmb 6 Troubleshooting Flow Chart...
Страница 55: ...55 ViewSonic Corporation Confidential Do Not Cop VA1721wmb 8 Exploded Diagram And Spare Parts List...
Страница 56: ...56 ViewSonic Corporation Confidential Do Not Cop VA1721wmb Packing For Shipping...
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Страница 61: ...61 ViewSonic Corporation Confidential Do Not Cop VA1721wmb 10 Block Diagram...
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Страница 72: ...72 ViewSonic Corporation Confidential Do Not Cop VG1721wm VA1721wm 12 3 POWER PCB TOP VIEW...
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Страница 75: ...75 ViewSonic Corporation Confidential Do Not Cop VA1721wmb 12 7 POWER PCB TOP BUTTON VIEW Q...