Adjustment Procedure - ViewSonic VP2330WB - 23" LCD Monitor Service Manual

5. Adjustment Procedure

1. Function test
(1) Test equipment
Color video signal and pattern generator (or PC with WUXGA resolution)
(2) Test condition
Before function testing and alignment, the unit must warm up for at least 30 minutes under the following
conditions:
1. Room temperature
2. With full-white screen , RGB , black pattern
3. with cycled display modes.
2. Test display modes
Timing Table
Item
1 640 x 350
2 640 x 350
3 640 x 400
4 640 x 400
5 640 x 400
6 640 x 480
7 640 x 480
8 640 x 480
9 640 x 480
10 640 x 480
11 640 x 480
12 720 x 400
13 720 x 400
14 720 x 480
15 720 x 576
16 800 x 600
17 800 x 600
18 800 x 600
19 800 x 600
ViewSonic Corporation
Timing
@ 70 Hz, 31.5
@ 85 Hz, 37.9
@ 60 Hz, 31.5
@ 70 Hz, 31.5
@ 85 Hz, 37.9
@ 50 Hz, 24.7
@ 60 Hz, 31.5
@ 67 Hz, 35
@ 72 Hz, 37.9
@ 75 Hz, 37.5
@ 85 Hz, 43.3
@ 70 Hz, 31.5
@ 85 Hz, 37.9
@ 60 Hz, 31.5
@ 50 Hz, 31.3
@ 50 Hz, 24.7
@ 56 Hz, 35.1
@ 60 Hz, 37.9
@ 72 Hz, 48.1
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Confidential - Do Not Copy
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Remark
For Separated sync, Only horizontal
full screen, The vertical position is at
the center.
For SOG sync, switch
640x400@60Hz and 640x480@60Hz
by [1]+[2] short cut key (primery =
640x480@60Hz)
For Separated Sync, Switch
640x400@70Hz and 720x400@70Hz
by [1]+[2] short cut key (primery =
640x400@70Hz)
For Separated Sync, Switch
640x400@85Hz and 720x400@85Hz
by [1]+[2] short cut key (primery =
640x400@85Hz)
For SOG sync, switch
640x400@60Hz and 640x480@60Hz
by [1]+[2] short cut key (primery =
640x480@60Hz)
For Separated Sync, Switch
640x400@85Hz and 720x400@85Hz
by [1]+[2] short cut key (primery =
640x400@85Hz)
Use Hot Key to switch the color.
VP2330wb