Sharp VL-AD260U Service Manual page 34

VL-AD260U
4. Color gain adjustment
Measuring instrument Vector scope
Subject
Tape
Test point
Adjustment address
Adjustment level
1) Using the address 1C4, adjust the R level to a burst ratio of 1.8.
With the address 1C2, adjust the B level to a burst ratio of 1.3.
2) Using the address 1BE, adjust the R phase to 101°. With the
address 1C0, adjust the B phase to 352°.
3) Repeat the above steps 1) and 2).
5. Out door white balance adjustment
Measuring instrument Vector scope
Subject
Tape
Test point
Adjustment address
Adjustment level
1) Attach the color temperature conversion filter (JiGHOYA-LB165) to the front of the lens.
2) Using the addresses R-OUT DOOR 6C and B-OUT DOOR 6E, adjust the spot to the center.
3) Take off the color temperature conversion filter.
When you have finished, write FF to the address 00 to exit camera signal
adjustment mode.
Color bar chart
—
VIDEO-OUT (Terminated in 75 Ω)
R GAIN 1C4
B GAIN 1C2
R MAT 1BE
B MAT 1C0
R GAIN; Burst ratio 1.8 ± 0.1
B GAIN; Burst ratio 1.3 ± 0.1
101 ± 2°
R MAT;
352 ± 2°
B MAT;
Gray scale
—
VIDEO-OUT (Terminated in 75 Ω)
R-OUT DOOR 6C
B-OUT DOOR 6E
R-OUT DOOR; 0 ± 3 %
B-OUT DOOR; 0 ± 3 %
R spot
Burst
34
R-Y
R level
101°
352°
B-Y
B spot
B level
R-Y
Spot
B-Y
Center point