ViewSonic VP2330WB - 23" LCD Monitor, Service Manual

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ViewSonic Corporation
Confidential - Do Not Copy
VP2330wb
28
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
Analog
Item Timing
Separated
Composite
SOG
Digital
- TMDS
Remark
1 640 x 350 @ 70 Hz, 31.5 KHz
2 640 x 350 @ 85 Hz, 37.9 KHz
For Separated sync, Only horizontal
full screen, The vertical position is at
the center.
3 640 x 400 @ 60 Hz, 31.5 KHz
For SOG sync, switch
640x400@60Hz and 640x480@60Hz
by [1]+[2] short cut key (primery =
640x480@60Hz)
4 640 x 400 @ 70 Hz, 31.5 KHz
For Separated Sync, Switch
640x400@70Hz and 720x400@70Hz
by [1]+[2] short cut key (primery =
640x400@70Hz)
5 640 x 400 @ 85 Hz, 37.9 KHz
For Separated Sync, Switch
640x400@85Hz and 720x400@85Hz
by [1]+[2] short cut key (primery =
640x400@85Hz)
6 640 x 480 @ 50 Hz, 24.7 KHz
7 640 x 480 @ 60 Hz, 31.5 KHz
For SOG sync, switch
640x400@60Hz and 640x480@60Hz
by [1]+[2] short cut key (primery =
640x480@60Hz)
8 640 x 480 @ 67 Hz, 35 KHz
9 640 x 480 @ 72 Hz, 37.9 KHz
10 640 x 480 @ 75 Hz, 37.5 KHz
11 640 x 480 @ 85 Hz, 43.3 KHz
12 720 x 400 @ 70 Hz, 31.5 KHz
13 720 x 400 @ 85 Hz, 37.9 KHz
For Separated Sync, Switch
640x400@85Hz and 720x400@85Hz
by [1]+[2] short cut key (primery =
640x400@85Hz)
14 720 x 480 @ 60 Hz, 31.5 KHz
15 720 x 576 @ 50 Hz, 31.3 KHz Use Hot Key to switch the color.
16 800 x 600 @ 50 Hz, 24.7 KHz
17 800 x 600 @ 56 Hz, 35.1 KHz
18 800 x 600 @ 60 Hz, 37.9 KHz
19 800 x 600 @ 72 Hz, 48.1 KHz