Toshiba TDP-MT400, Service Manual

Page: 42 / 118

Toshiba Series
4-5
Item Test Content Pattern Specification Remark
1
Frequency &
Tracking
Fine Line Moire
Eliminate visual wavy noise by
Re-sync
,
Frequency or Tracking selection.
Figure 1
2 Contrast/Brightness
32 Gray Scale /
64 RGBW scale Gray level should be distinguishable and
without color abnormal.
Figure 2
,
3
3
R, G, B and White
Color
Performance
R, G, B and
White Color
Each R, G, B color should be
normal without color abnormal
issue.
F
i
gure
4~7
4 Screen Uniformity Full White
Should be compliant with 65%.
(Minimum)
F
i
gure
7
5
Dead Pixel (Bright
pixel)
Full Black Cannot accept any bright pixel. Figure 8
Dead Pixel (Dark
pixel)
Full White
The numbers of dead pixel should
be smaller or amount to 8 pixels.
Figure 7
6 Blemish (Bright)
Full Black /
Gary 30
The bright blemish cannot be
accepted if the problem appears
with Gary 30 pattern.
Figure 8,
9
7 Blemish (Dark)
Full white / Blue
60
The dark blemish cannot be
accepted if the problem appears
with Blue 60 pattern.
Figure 7,
10
8 Focus Text Pattern
The text in the corner should be
clear after adjusting the focus ring.
Figure
11
9 Boundary
Boundary
Frame
Horizontal and Vertical position of
video should be adjustable to be
the screen frame.
Figure
12
4-4.4 Function Test Display Pattern
PC Signal :