ViewSonic VG720 - 17" LCD Monitor Service Manual page 27

1024 x 768 @ 70Hz, 56.5kHz
1024 x 768 @ 72Hz, 58.1kHz
1024 x 768 @ 75Hz, 60.0kHz
1280 x 1024 @ 60Hz, 63.4kHz
1280 x 1024 @ 75Hz, 79.97kHz
1280x 720 @ 60Hz, 45kHz
Function Test Display Pattern
Item Test Content
Frequency
1
Tracking
Contrast/Bright
2
ness
3 Boundary
RGB
4
Performance
Screen
5 Uniformity
Flicker
Dead
6
Pixel/Line
7 White Balance
Fine Line Morie Pattern (Figure1)
ViewSonic Corporation
Pattern
&
Fine Line Moire
16 Gray Scale
Horizontal&Vertical
Thickness
Color
RGB Color Intensities
& Full White
White Screen & Dark
Screen
White & Black Pattern
1024 x 768 @ 70Hz, 56.5kHz
1024 x 768 @ 72Hz, 58.1kHz
1024 x 768 @ 75Hz, 60.0kHz
1280 x 1024 @ 60Hz, 63.4kHz
1280 x 1024 @ 75Hz, 79.97kHz
1280x 720 @ 60Hz, 45kHz
Specification
Eliminate visual wavy
noise.
16 gray levels sh should
be distinguishable.
Horizontal and Vertical
position of video should
be adjustable
within the screen frame.
Contrast of each R, G,
B, color
normal.
Should
with the spec.
The numbers of dead
pixels
compliant with the spec.
The screen must have
the pure white and black
pattern, no other color.
Gray Scale Pattern (Figure2)
- 27 –
Confidential - Do Not Copy
Remark
Figure 1
Figure 2
Figure 3
to be
Figure
should be
4,5,6
be compliant
Figure 7
should be Figure 7,8
Figure 9
VG720