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Electrical Adjustments
, Common Center adjustment
1. Receive the 1 line black/white pattern computer sig-
nal with Input 1 [RGB(Analog)] mode.
2. Enter the service mode.
3. Project only green light component to the screen.
4. Select group no. “
200”, item no. “18” and change
data value to obtain the minimum flicker on the
screen.
5. Project only red light component to the screen.
6. Select item no. “
19” and change data value to obtain
the minimum flicker on the screen.
7. Project only blue light component to the screen.
8. Select item no. “
20 and change data value to obtain
the minimum flicker on the screen.
. PC Gamma-shift adjustment
1. Receive the 100%whole-white computer signal with
Input 1 [RGB(Analog)] mode.
2. Enter the service mode.
3. Measure luminance on the screen with the luminance
meter. It is A for the reading of luminance meter.
4. Change the signal source to the 50%whole-white
computer signal with Input 1 [RGB(Analog)] mode.
5. Select group no. “
200”, Item no. “27” and change the
Data value to make the reading of luminance meter
to be
A x 19%.
⁄0 PC White Balance adjustment
1. Receive the 50%whole-white computer signal with
Input 1 [RGB(Analog)] mode.
2. Enter the service mode, select group no. “200”, item
no. “28” (Red) or “29” (Blue), and change data val-
ues respectively to make a proper white balance.
Confirm that the same white balance is obtained in
video and computer input.
NOTE ON WHITE UNIFORMITY
ADJUSTMENT
If you find the color shading on the screen, please
adjust the white uniformity by using the proper com-
puter and “Color Shading Correction” software supplied
separately. The software can be ordered as follows;
COLOR SHADING CORRECTION Ver. 4.00
Service Parts No. 645 075 9611
⁄1 AV Gamma-shift adjustment
1. Receive the 100%whole-white component video sig-
nal (Y/Cb/Cr) with Input 3 [Y,Pb/Cb,Pr/Cr] mode.
2. Enter the service mode.
3. Measure luminance on the screen with the luminance
meter. It is
A for the reading of luminance meter.
4. Change the signal source to the 50%whole-white
computer signal with Input 3 [Y,Pb/Cb,Pr/Cr] mode.
5. Select group no. “
210”, Item no. “27” and change the
Data value to make the reading of luminance meter
to be
A x 19%.
⁄2 PC White Balance adjustment
1. Receive the 100%whole-white component video sig-
nal (Y/Cb/Cr) with Input 3 [Y,Pb/Cb,Pr/Cr] mode.
2. Enter the service mode, select group no. “210”, item
no. “28” (Red) or “29” (Blue), and change data val-
ues respectively to make a proper white balance.
Confirm that the same white balance is obtained in
video and computer input.
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