Check Cross Talk (S); White Color Adjustment; Mechanical Characteristics - Philips 190B7 Service Manual

19" LCD Color Monitor
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 :

4.6 White color adjustment

There are three factory preset white color 9300K, 6500K, sRGB.
Apply full gray64 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 spec.
9300K CIE coordinates
6500K/ sRGB CIE coordinates
sRGB CIE coordinates
Production alignment spec.
9300K CIE coordinates
6500K/ sRGB CIE coordinates
sRGB CIE coordinates
Quality Inspection spec.
9300K CIE coordinates
6500K/ sRGB CIE coordinates
sRGB CIE coordinates

5. Mechanical characteristics

5.1 Cosmetic -
5.2 Mechanical data files -
5.3 Location of Philips logo -
5.4 Gap between panel and front bezel < 0.8 mm
5.5 Location of Control icons -
5.6 Color for resin/paint -
B_min
X 100% >75%
B_max
ABS (YA - YB)
⎯⎯⎯⎯⎯⎯⎯⎯⎯ X 100% < 1.5 %
YA
X = 0.283 ± 0.02
X = 0.313 ± 0.02
X = 0.313 ± 0.02
X = 0.283 ± 0.005
X = 0.313 ± 0.005
X = 0.313 ± 0.005
X = 0.283 ± 0.015
X = 0.313 ± 0.015
X = 0.313 ± 0.015
Philips ID
ProE files required
Per Philips make-up sheet
Per Philips Graphic sheet
Per Philips make-up sheet
116
Y = 0.297 ± 0.02
Y = 0.329 ± 0.02
Y = 0.329 ± 0.02
Y = 0.297 ± 0.005
Y = 0.329 ± 0.005
Y = 0.329 ± 0.005
Y = 0.297 ± 0.015
Y = 0.329 ± 0.015
Y = 0.329 ± 0.015
190B7