ViewSonic VP201b-1 Service Manual page 24

5.2.2 Video alignment.
5.2.2.1 Initial Conditions
5.2.2.1.1 Set the contrast to 70% and set brightness to 100%..
5.2.2.1.2 Input a 640x480 / 60Hz 5-block (5-MOSAIC) pattern (input level 100IRE
0.7Vp-p), then adjust the white balance.
SRBG/9300K / 6500K / 5400K / 5000K, R G B Gain preset as below:
Analog
R Gain 255
G Gain 255
B Gain 255
5.2.2.2 9300K alignment:
5.2.2.2.1
5.2.2.2.2
5.2.2.3 6500K alignment:
5.2.2.3.1
5.2.2.3.2
5.2.2.4 5400K alignment:
5.2.2.4.1
5.2.2.4.2
5.2.2.5 5000K alignment:
5.2.2.5.1
5.2.2.5.2
5.2.2.6 sRGB alignment:
5.2.2.6.1
5.2.2.6.2
5.2.2.7 64 grays and 16 grays pattern check:
5.2.2.7.1 Input a 1600x1200 / 60Hz, 64 gray-level pattern at 100IRE, with brightness set to 100%
and contrast set to 70%.
5.2.2.7.2 Verify that under the 9300K / 6500K / 5400K / 5000K settings, no more than 2 of the 64
grays are saturated.
5.2.2.7.3 Input a 1600x1200 / 60Hz, 16 gray-level pattern at 100IRE, with brightness set to 100%
and contrast set to 100%
5.2.2.7.4 Verify that under the 9300K / 6500K / 5400K / 5000K settings, no more than 4 of the 16
grays are saturated.
ViewSonic Corporation
sRGB 9300K
DVI Analog DVI
255 255 255
255 255 255
255 255 255
Input 1600x1200 / 60Hz & full white pattern at 100IRE.
Adjust R, G, and B Gain to meet following chromaticity spec:
9300K → x = 0.283 ± 0.005, y = 0.298 ± 0.005, Y > 150cd/m
Input 1600x1200 / 60Hz & full white pattern at 100IRE.
Adjust R, G and B Gain to meet following chromaticity spec:
6500°K → x = 0.313 ±0.005, y = 0.329 ± 0.005, Y > 200cd/m
Input 1600x1200 / 60Hz & full white pattern at 100IRE.
Adjust R, G, and B Gain to meet following chromaticity spec:
5400K → x = 0.335 ± 0.005, y = 0.350 ± 0.005, Y > 180cd/m
Input 1600x1200 / 60Hz & full white pattern at 100IRE.
Adjust R, G and B Gain to meet following chromaticity spec:
5000°K → x = 0.346 ±0.005, y = 0.359 ± 0.005, Y > 180cd/m
Input 1600x1200 / 60Hz & full white pattern at 100IRE.
Adjust R, G and B Gain to meet following chromaticity spec:
sRGB → x = 0.313 ±0.005, y = 0.329 ± 0.005, Y > 200cd/m
6500K 5400K
Analog DVI Analog
255 255 255
255 255 255
255 255 255
Confidential - Do Not Copy
21
5000K
DVI Analog DVI
255 255 255
255 255 255
255 255 255
2
(Both analog & DVI).
2
(Both analog & DVI).
2
(Both analog & DVI).
2
(Both analog & DVI).
2
(Both analog & DVI).
VP201b/s-1