Philips 17S1AB, Руководство по обслуживанию

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17S1AB LCD 67
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17S1 17” 4x3 LCD Monitor
2009/05/29 PHILIPS 67 of 27
4.4 Brightness uniformity
Set contrast at 100% and turn the brightness to get average above 300 nits at centre of the screen.
Apply the Fig 1, it should comply with the following formula:
( B_max - B_min )
X 100% > 75%
B_max
Where B_max = Maximum brightness
B_min = Minimum brightness
4.5 Check Cross talk (S)
Apply Pattern 2. Set contrast and brightness at 100 %.
Measure YA. Then output Pattern 3 and measure YB.
the cross talk value :
ABS ( YA - YB )
 X 100% < 1.5 %
YA
4.6 Color temperature adjustment
There are three factory preset white color 9300K, 6500K, sRGB.
Apply full white pattern, with brightness in 100 % position and the contrast control at 50 % position.
The 1931 CIE Chromaticity (color triangle) diagram (x ,y) coordinate for the screen center should be:
Product specification
CIE coordinates (x,y) PerfectuneII
11500K x = 0.270 ± 0.02
y = 0.281 ± 0.02
YES
9300K x = 0.283 ± 0.02
y = 0.297 ± 0.02
YES
8200K x = 0.291 ± 0.02
y = 0.306 ± 0.02
YES
7500K x = 0.298 ± 0.02
y = 0.314 ± 0.02
YES
6500K/sRGB x = 0.313 ± 0.02
y = 0.329 ± 0.02
YES
sRGB x = 0.313 ± 0.02
y = 0.329 ± 0.02
YES
5000K x = 0.345 ± 0.02
y = 0.357 ± 0.02
YES
Production alignment spec.
CIE coordinates (x,y) PerfectuneII
11500K x = 0.270 ± 0.006
y = 0.281 ± 0.006
YES
9300K x = 0.283 ± 0.006 YES