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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
TSUM56AK
13
ViewSonic
Corporation
Co
nfidential
-
Do
Not
Copy
VG920-1
Содержание VG920-1
Страница 24: ...Power Block Function 21 ViewSonic Corporation Confidential Do Not Copy VG920 1...
Страница 39: ...Sep2 Inpute the S N and execute Enter 36 ViewSonic Corporation Confidential Do Not Copy VG920 1...
Страница 40: ...37 ViewSonic Corporation Confidential Do Not Copy VG920 1...
Страница 41: ...Sep3 Key the Enter and write the data 38 ViewSonic Corporation Confidential Do Not Copy VG920 1...
Страница 42: ...Sep4 If ddc program OK and show data compare ok 39 ViewSonic Corporation Confidential Do Not Copy VG920 1...
Страница 43: ...5 7 Packing For Shipping 40 ViewSonic Corporation Confidential Do Not Copy VG920 1...
Страница 47: ...Picture 9 Picture 10 Picture 11 Picture 12 Picture 13 44 ViewSonic Corporation Confidential Do Not Copy VG920 1...
Страница 52: ...6 Trouble Shooting Flow Chart 49 ViewSonic Corporation Confidential Do Not Copy VG920 1...
Страница 78: ...11 PCB Layout Diagram 11 1 MAIN BOARD PCB TOP VIEW 75 ViewSonic Corporation Confidential Do Not Copy VG920 1...
Страница 79: ...11 2 MAIN BOARD PCB BUTTON VIEW 76 ViewSonic Corporation Confidential Do Not Copy VG920 1...
Страница 80: ...11 3 KEYBOARD TOP VIEW 11 4 KEYBOARD BUTTON VIEW 77 ViewSonic Corporation Confidential Do Not Copy VG920 1...
Страница 81: ...11 5 POWER PCB TOP VIEW 78 ViewSonic Corporation Confidential Do Not Copy VG920 1...
Страница 82: ...11 6 POWER PCB BUTTON VIEW 79 ViewSonic Corporation Confidential Do Not Copy VG920 1...
Страница 83: ...11 7 AUDIO PCB TOP VIEW 80 ViewSonic Corporation Confidential Do Not Copy VG920 1...
Страница 84: ...11 8 AUDIO PCB BUTTON VIEW 81 ViewSonic Corporation Confidential Do Not Copy VG920 1...