Adjustment Procedure - ViewSonic VX2025wm-1 Service Manual

5. Adjustment Procedure

1. Function test
(1) Test equipment
Color video signal and pattern generator (or PC with SXGV 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
Item Timing
1 640 x 350 @ 70Hz, 31.5kHz
2 640 x 400 @ 60Hz, 31.5kHz
3 640 x 400 @ 70Hz, 31.5kHz
4 640 x 480 @ 60Hz, 31.5kHz
5 640 x 480 @ 67Hz, 35.0kHz
6 640 x 480 @ 72Hz, 37.9kHz
7 640 x 480 @ 75Hz, 37.5kHz
8 640 x 480 @ 85Hz, 43.27kHz
9 720 x 400 @ 70Hz, 31.5kHz
10 800 x 600 @ 56Hz, 35.1kHz
11 800 x 600 @ 60Hz, 37.9kHz
12 800 x 600 @ 75Hz, 46.9kHz
13 800 x 600 @ 72Hz, 48.1kHz
14 800 x 600 @ 85Hz, 53.7kHz
15 832 x 624 @ 75Hz, 49.7kHz
16 1024 x 768 @ 60Hz, 48.4kHz
17 1024 x 768 @ 70Hz, 56.5kHz
18 1024 x 768 @ 72Hz, 58.1kHz
19 1024 x 768 @ 75Hz, 60.0kHz
20 1024 x 768 @ 85Hz, 68.67kHz
21 1152 x 870 @ 75Hz, 68.7kHz
22 1280 x 1024 @ 60Hz, 63.4kHz
23 1280 x 1024 @ 75Hz, 79.97kHz
24 1280 x 720 @ 60Hz, 45kHz
25 1680 x 1050 @ 60Hz, 65.3kHz
26 1680 x 1050 @ 75Hz, 82.3kHz
ViewSonic Corporation
Analog
Yes
Yes
Yes
No
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
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Yes
Yes
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Yes
Yes
Yes
Confidential - Do Not Copy
24
Digital
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
No
VX2025wm-1