- 16 –
ViewSonic Corporation
Confidential - Do Not Copy
VG720
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
Содержание VG720 - 17" LCD Monitor
Страница 37: ...37 ViewSonic Corporation Confidential Do Not Copy VG720 Sep2 Inpute the S N and execute Enter...
Страница 38: ...38 ViewSonic Corporation Confidential Do Not Copy VG720...
Страница 39: ...39 ViewSonic Corporation Confidential Do Not Copy VG720 Sep3 Key the Enter and write the data...
Страница 40: ...40 ViewSonic Corporation Confidential Do Not Copy VG720 Sep4 If ddc program OK and show data compare ok...
Страница 41: ...41 ViewSonic Corporation Confidential Do Not Copy VG720 5 7 Packing For Shipping...
Страница 43: ...43 ViewSonic Corporation Confidential Do Not Copy VG720 6 Troubleshooting Flow Chart...
Страница 61: ...61 ViewSonic Corporation Confidential Do Not Copy VG720 8 Exploded Diagram And Spare Parts List...
Страница 62: ...62 ViewSonic Corporation Confidential Do Not Copy VG720...
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Страница 66: ...66 ViewSonic Corporation Confidential Do Not Copy VG720 Picture 9 Picture 10 Picture 11 Picture 12 Picture 13...
Страница 79: ...79 ViewSonic Corporation Confidential Do Not Copy VG720 12 PCB Layout Diagram 12 1 MAIN BOARD PCB TOP VIEW...
Страница 80: ...80 ViewSonic Corporation Confidential Do Not Copy VG720 12 2 MAIN BOARD PCB BUTTON VIEW...
Страница 81: ...81 ViewSonic Corporation Confidential Do Not Copy VG720 12 3 KEYBOARD TOP VIEW 12 4 KEYBOARD BUTTON VIEW...
Страница 82: ...82 ViewSonic Corporation Confidential Do Not Copy VG720 12 5 POWER PCB TOP VIEW...
Страница 83: ...83 ViewSonic Corporation Confidential Do Not Copy VG720 12 6 POWER PCB BUTTON VIEW...
Страница 84: ...84 ViewSonic Corporation Confidential Do Not Copy VG720 12 6 AUDIO PCB TOP VIEW...
Страница 85: ...85 ViewSonic Corporation Confidential Do Not Copy VG720 12 6 AUDIO PCB BUTTON VIEW...