Eiki LC-WUL100 Service Manual page 43

Electrical Adjustment
PC, Video, Component Manual adjustment
When the PC, Video or Component Auto Calibration
fails, take the following manual adjustment instead of
auto calibration.
[1] Manual adjustment (PC)
Input mode Computer mode (Input 1 RGB)
Input signal 16-step gray scale computer signal
1. Enter the Service mode.
2. Select Group "200",No."70" and set data value to "0".
Select Group "200",No."72" and set data value to "0".
3. Adjust the data values listed in the table below as the
100% white parts on the screen becomes the darkest
point.
Group No. Adjustment
10 - 3 ADC-Green Gain
10 - 4 ADC-Red Gain
10 - 5 ADC-Blue Gain
4. Select Group "200",No."70" and set data value to "1".
5. Adjust the data values listed in the table below as the
100% white parts on the screen becomes the darkest
point.
Group No. Adjustment
0 - 3 ADC-Green Gain
0 - 4 ADC-Red Gain
0 - 5 ADC-Blue Gain
6. Select Group "200",No."70" and set data value to"0".
Select Group"200",No."72" and set data value to"1".
[2] Manual adjustment (Component)
Input mode Video mode (Input 2 -Component)
Input signal 16-step gray scale component (480i)
16-step gray scale component (480p)
16-step gray scale component (720p)
16-step gray scale component (1080i)
1. Enter the Service mode.
2. At first, input the 16-step gray scale component signal
(480i).
3. Select Group "200",No."72" and set data value to"0".
Select Group "200",No."71" and set data value to"1".
image example of manual adjustment
Darkest image
16-step gray scale
White 100%
4. Adjust the data values listed in the table below as the
100% white parts on the screen becomes the darkest
point.
5. Select Group"200",No."71" and set data value to"0".
6. Adjust the data values listed in the table below as the
100% white parts on the screen becomes the darkest
point.
(MAIN)
7. Change another input signal and take steps 3-6
again.
8. Select Group"200",No."71"and set data value to"1".
Select Group"200",No."72"and set data value to"1".
[3] Manual adjustment (Video)
(SUB)
Input mode
Input signal
1. Enter the Service mode.
2. Adjust the data values listed in the table below as the
100% white parts on the screen becomes the darkest
point.
Black 100%
-43-
Group No. Adjustment (MAIN)
0 - 3 Y Gain
Group No. Adjustment (SUB)
10 - 3 Y Gain
Video mode (Input 3 Video)
16-step gray scale composite video
Group No. Adjustment
20 - 0 Y Level