Service manual

34
VL-A110U/UC
VL-AH130U
Measuring instrument Vector scope
Subject Gray scale
Tape —
Test point VIDEO OUT (Terminated in 75 Ω)
Adjustment address R-W/B 00, B-W/B 02
Adjustment level R-W/B 0 % ± 3 %
B-W/B 0 % ± 3 %
1) Adjust the spot to the center of vector scope (R-Y : 0%, B-Y : 0%)
using address 00 and 02.
4. White balance adjustment
5. Color gain adjustment
B spot
R-Y
B-Y
R spot
R level
100°
344°
Burst
B level
Measuring instrument Vector scope
Subject Color bar chart
Tape —
Test point VIDEO OUT (Terminated in 75 Ω)
Adjustment address R GAIN 1C4
B GAIN 1C2
R MAT 1C0
B MAT 1BE
Adjustment level R GAIN; Burst ratio 1.2 ± 0.1
B GAIN; Burst ratio 1.0 ± 0.1
R MAT; 100 ± 2°
B MAT; 344 ± 2°
1) Using the address 1C4, adjust the R level to a burst ratio of 1.2. 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 100°. With the
address 1BE, adjust the B phase to 344°.
3) Repeat the above steps 1) and 2).
Measuring instrument Vector scope
Subject Gray scale
Tape —
Test point VIDEO OUT (Terminated in 75 Ω)
Adjustment address R-OUT DOOR 6C
B-OUT DOOR 6E
Adjustment level R-OUT DOOR; 0 ± 3 %
B-OUT DOOR; 0 ± 3 %
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.
6. Out door white balance adjustment
Center point
Spot
R-Y
B-Y
When you have finished, write FF to the adress 70 to exit camera signal
adjustment mode.
Center point
Spot
R-Y
B-Y