ViewSonic VLCDS25973-2W Service Manual page 22

5.5.2 Function Test Display Pattern
Item Test Content
1 Frequency & Tracking
2 Contrast/Brightness
3 Boundary
4 RGB Color Performance
5 Screen Uniformity & Flicker Full White
6 Dead Pixel/Line
7 White Balance
Fine Line Morie Pattern (Figure1)
Horizontal & Vertical Thickness Pattern (Figure 3)
ViewSonic Corporation
Pattern
Fine Line Moire
16 Gray Scale
Horizontal & Vertical
Thickness
RGB Color Intensities
White Screen & Dark
Screen
White & Black Pattern
19
Specification
Eliminate visual wavy noise.
16 gray levels should be
distinguishable.
Horizontal and Vertical position of
video should be adjustable to be
within the screen frame.
Contrast of each R, G, B, color
should be normal.
Should be compliant with the spec. Figure 7
The numbers of dead pixels should
be compliant with the spec.
The screen must have the pure
white and black pattern, no other
color.
16 Gray Scale Pattern (Figure2)
R. Color Pattern (Figure 4)
Confidential - Do Not Copy
Remark
Figure 1
Figure 2
Figure 3
Figure 4, 5, 6
Figure 7, 8
Figure 9
VP191b/s-1/-2