Hitachi CPS370W C4S3 Service Manual page 7

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11.Adjust Gamma, 0%, G: and R: and B: so that the
following values.
[0%][R:] = -96 - [SHIFT][R:]
[0%][G:] = -96 - [SHIFT][G:]
[0%][B:] = -112 - [SHIFT][B:]
12.Now, adjust the R and B colors.
13.Adjust Gamma, 86%, R: and B: so that the color
coordinates (x, y) at the center of the screen take
on the following values.
x = 0.290 ± 0.001
y = 0.350 ± 0.002
14.Adjust Gamma, 93%, R: and B: so that the
following values.
[93%][R:] = [86%][G:]
[93%][B:] = [86%][B:]
15.Adjust Gamma, 75%, R: and B: so that the color
coordinates (x, y) at the center of the screen take
on the following values.
x = 0.284 ± 0.001
y = 0.340 ± 0.002
Adjustment operations (reference)
93% operation
Adjustment
point
0 14
29
43
75
86 93
Input signal (%)
29% operation
Adjustment
point
0 14
86% operation
Adjustment
point
100
0 14
29
43
75
86 93
Input signal (%)
14% operation
Adjustment
point
29
43
75
86 93
100
0 14
29
Input signal (%)
16.Adjust Gamma, 43%, R: and B: so that the color
coordinates (x, y) at the center of the screen take
on the following values.
x = 0.280 ± 0.001
y = 0.340 ± 0.002
17.Adjust Gamma, 29%, R: and B: so that the color
coordinates (x, y) at the center of the screen take
on the following values.
x = 0.270 ± 0.001
y = 0.330 ± 0.002
18.Adjust Gamma, 14%, R: and B: so that the color
coordinates (x, y) at the center of the screen take
on the following values.
x = 0.260 ± 0.001
y = 0.300 ± 0.002
75% operation
Adjustment
point
100
0 14
29
43
75
86 93
Input signal (%)
0% operation
Adjustment
point
43
75
86 93
100
0 14
29
Input signal (%)
Input signal (%)
CP-S370W
43% operation
Adjustment
point
100
0 14
29
43
75
86 93
100
Input signal (%)
43
75
86 93
100
7

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