Sony RM-PJHS2, Service Manual

Page: 41 / 126

2-11
VPL-HS3
2-4-2. VIDEO
Preparation
1. Switch INPUT-A input to VIDEO-GBR.
2. Set the color/color-difference meter as follows.
.
Standard
.
Contrast: 80
.
Bright: 50
.
Black Level: OFF
.
Lamp Control: LOW
.
Iris Control: ON
3. Check that the initial value of each GAIN and BIAS of
RGB is as follows.
GAIN: 141
BIAS: 85
Adjustment
1. MID mode of VIDEO
1. Input 15k-GBR 20IRE Window white (3 colors: RGB)
to INPUT-A.
2. Adjust the BIAS of colors other than G of white
balance so that the chromaticity (x20 and y20) is
within the following specification.
x20 : 0.294
±
0.002
y20 : 0.310
±
0.003
3. Input 15k-GBR 80IRE Window white (3 colors: RGB)
to INPUT-A.
4. Adjust the GAIN so that the chromaticity (x80 and
y80) is within the following specification.
n
Adjust the GAIN of colors other than the reference
color specified in “1. MID mode of INPUT-A” in
Section 2-4-1.
x80 : 0.294
±
0.002
y80 : 0.310
±
0.003
5. Repeat steps 1 to 4 and adjust each GAIN and BIAS of
RGB so that x and y are within the following
specification.
x : 0.294
±
0.002
y : 0.310
±
0.003
2. HIGH mode of VIDEO
1. Input 15k-GBR 80IRE Window white (3 colors: RGB)
to INPUT-A.
2. Set the value of B GAIN as follows.
B GAIN = 145
3. Input 15k-GBR 20IRE Window white (3 colors: RGB)
to INPUT-A.
4. Adjust the BIAS of colors other than G of white
balance so that the chromaticity (x20 and y20) is
within the following specification.
x20 : 0.283
±
0.002
y20 : 0.297
±
0.003
5. Input 15k-GBR 80IRE Window white (3 colors: RGB)
to INPUT-A.
6. Adjust the GAIN of colors other than B of white
balance so that the chromaticity (x80 and y80) is
within the following specification.
x80 : 0.283
±
0.002
y80 : 0.297
±
0.003
7. Repeat steps 1 to 6 and adjust each GAIN and BIAS of
RGB so that x and y are within the following
specification.
x : 0.283
±
0.002
y : 0.297
±
0.003
3. LOW mode of VIDEO
1. Input 15k-GBR 20IRE Window white (3 colors: RGB)
to INPUT-A.
2. Adjust the BIAS of colors other than G of white
balance so that the chromaticity (x20 and y20) is
within the following specification.
x20 : 0.313
±
0.002
y20 : 0.329
±
0.003
3. Input 15k-GBR 80IRE Window white (3 colors: RGB)
to INPUT-A.
4. Adjust the GAIN of colors other than R of white
balance so that the chromaticity (x80 and y80) is
within the following specification.
x80 : 0.313
±
0.002
y80 : 0.329
±
0.003
5. Repeat steps 1 to 6 and adjust each GAIN and BIAS of
RGB so that x and y are within the following
specification.
x : 0.313
±
0.002
y : 0.329
±
0.003