Sharp VL-A10S Service Manual page 32

VL-A10S/H/E
VL-AH30S/H/E
4. White balance adjustment
Measuring instrument Vector scope
Subject
Tape
Test point
Adjustment address
Adjustment level
1) Adjust the spot to the center of vector scope (R-Y : 17%, B-Y : -7%)
using address 00 and 02.
5. 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 1.4. With
the address 1C2, adjust the B level to a burst ratio of 1.0.
2) Using the address 1C0, adjust the R phase to 104°. With the
address 1BE, adjust the B phase to 343°.
3) Repeat the above steps 1) and 2).
6. 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 adress 70 to exit camera signal
adjustment mode.
Gray scale
—
VIDEO OUT (Terminated in 75 Ω)
R-W/B 00, B-W/B 02
R-W/B 17 % ± 3 %
B-W/B -7 % ± 3 %
Color bar chart
—
VIDEO OUT (Terminated in 75 Ω)
R GAIN 1C4
B GAIN 1C2
R MAT 1C0
B MAT 1BE
R GAIN; Burst ratio 1.4 ± 0.1
B GAIN; Burst ratio 1.0 ± 0.1
104 ± 2°
R MAT;
343 ± 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
32
R-Y
Spot
B-Y
R-Y
R level
104°
343°
B-Y
B spot
B level
R-Y
Spot
B-Y
Center point