ViewSonic VA702-3 Service Manual page 24

17” color tft lcd display
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Function test
(1) Test equipment
Color video Signal & pattern generator (or PC with SXGV resolution )
(2) Test condition
Warm-up at least 30mins is necessary under following condition before function test & alignment :
1.
room temperature
2.
With full-white screen , RGB , black pattern
3.
with cycled display modes.
2.
Test display modes
Item
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 @ 50Hz, 24.7kHz
5
640 x 480 @ 60Hz, 31.5kHz
6
640 x 480 @ 67Hz, 35.0kHz
7
640 x 480 @ 72Hz, 37.9kHz
8
640 x 480 @ 75Hz, 37.5kHz
9
640 x 480 @ 85Hz, 43.27kHz
10
720 x 400 @ 70Hz, 31.5kHz
11
800 x 600 @ 56Hz, 35.1kHz
12
800 x 600 @ 60Hz, 37.9kHz
13
800 x 600 @ 75Hz, 46.9kHz
14
800 x 600 @ 72Hz, 48.1kHz
15
800 x 600 @ 85Hz, 53.7kHz
16
832 x 624 @ 75Hz, 49.7kHz
17
1024 x 768 @ 60Hz, 48.4kHz
18
1024 x 768 @ 70Hz, 56.5kHz
19
1024 x 768 @ 72Hz, 58.1kHz
20
1024 x 768 @ 75Hz, 60.0kHz
21
1024 x 768 @ 85Hz, 68.67kHz
22
1152 x 864 @ 75Hz, 67.5kHz
23
1152 x 870 @ 75Hz, 68.7kHz
24
1280 x 1024 @ 60Hz, 63.4kHz
25
1280 x 1024 @ 75Hz, 79.97kHz
26
1280x 720 @ 60Hz, 45kHz (HDTV)
ViewSonic Corporation
Timing
21
Analog
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Confidential - Do Not Copy
VA702-3_VA702b-3

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