Sanyo PLC-XM150L 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.
. Adjust the data values listed in the table below as the
100% white part on the screen becomes the most
noisy (darkest).
Group No. Adjustment
10 - 3 ADC-Green Gain
10 - 4 ADC-Red Gain
10 - 5 ADC-Blue Gain
[2] Manual adjustment (component)
Input mode Video mode (Input  -Component)
Input signal 100% color bar signal (480i)
100% color bar signal (480p)
100% color bar signal (70p)
100% color bar signal (1080i)
1. Enter the Service mode.
. At first, input the 100% color bar signal (480i).
3. Adjust the data values listed in the table below as the
100% white part on the screen becomes the most
noisy (darkest).
Group No. Adjustment
0 - 3 Y Gain
4. Change another input signal and take step 3 again.
Image example of manual adjustment
for [Pc / Video]
Black and noisy
image appears
16-step gray scale
White 100%
[3] Manual adjustment (Video)
1. Enter the Service mode.
. Adjust the data values listed in the table below as the
Black 100%
-43-
Input mode Video mode (Input 3 Video)
Input signal 16-step gray scale composite video
signal
100% white part on the screen becomes the most
noisy (darkest).
Group No. Adjustment
0 - 0 Y Level
Image example of manual adjustment
for [component]
Black and noisy
image appears
W Y C G M
100% full color bar
R B BK