ViewSonic VS10715 VA902-3 Service Manual page 22

1.4.2 Function Test Display Pattern
Item
Horizontal & Vertical Thickness Pattern (Figure 3)
ViewSonic Corporation
Test Content
1 Frequency &
Tracking
2 Contrast/Brightness
3 Boundary
4 RGB Color
Performance
5 Screen Uniformity &
Flicker
6 Dead Pixel/Line
7 White Balance
Fine Line Morie Pattern (Figure1)
Pattern
Fine Line Moire Eliminate visual wavy
noise.
16 Gray Scale 16 gray levels should be
distinguishable.
Horizontal & Vertical Horizontal and Vertical
Thickness position of video should be
adjustable to be within the
screen frame.
RGB Color Contrast of each R, G, B,
Intensities color should be normal.
Full White Should be compliant with
the spec.
White Screen & Dark The numbers of dead
Screen pixels should be compliant
with the spec.
White & Black The screen must have the
Pattern pure white and black
pattern, no other color.
Gray Scale Pattern (Figure2)
19
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Specification Remark
Figure 1
Figure 2
Figure 3
Figure 4,
5, 6
Figure 7
Figure 7,
8
Figure 9
R. Color Pattern (Figure 4)
VA902-3_VA902b-3