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Electrical Adjustments
¤0
RGB G pedestal adjustment
1. Receive the black 0% RGB 480p video signal with
Input 2 [RGB] mode.
2. Enter the service mode.
5
3. Select group no. "
", item no. "
value to adjust the green noise on the screen to the
deepest green.
¤1
RGB A/D reference voltage (top side)
adjustment
1. Receive the white 100% RGB 480p video signal with
Input 2 [RGB] mode.
2. Enter the service mode.
5
3. Select group no. "
", item no. "
value to adjust the magenta noise on the screen to
the deepest magenta.
¤2
RGB B/R pedestal adjustment
1. Receive the black 0% RGB 480p video signal with
Input 2 [RGB] mode.
2. Enter the service mode.
5
3. Select group no. "
", item no. "
value to adjust the blue noise on the screen to the
deepest blue.
13
4. Select item no. "
" and change data value to adjust
the red noise on the screen to the deepest red.
¤3
RGB gain adjustment
1. Receive the 16-step gray scale RGB 480p signal with
Input 2 [RGB] mode.
2. Enter the service mode.
3. Connect an oscilloscope to test point "
and chassis ground (-).
4
4. Select group no. "
", item no. "
value to adjust waveform "a" to be minimum amplitude.
5. Connect an oscilloscope to test point "
and chassis ground (-).
4
6. Select item no. "
" and change data value to adjust
waveform "a" to be minimum amplitude.
7. Connect an oscilloscope to test point "
and chassis ground (-).
5
8. Select item no. "
" and change data value to adjust
waveform "a" to be minimum amplitude.
White Level
(a)
11
" and change data
18
" and change data
12
" and change data
TP35G
" (+)
3
" and change data
TP35B
" (+)
TP35R
" (+)
-11-
¤4
Common center adjustment
1. Receive the 16-step gray scale computer signal with
Input 1 [RGB(Analog)] mode.
2. Enter the service mode.
3. Project only green light component to the screen.
4
4. Select group no. "
", item no. "
value to obtain the minimum flicker on the screen.
5. Project only blue light component to the screen.
52
6. Select item no. "
" and change data value to obtain
the minimum flicker on the screen.
7. Project only red light component to the screen.
53
8. Select item no. "
" and change data value to obtain
the minimum flicker on the screen.
¤5
White balance adjustment
[PC WHITE BALANCE ADJUSTMENT]
1. Receive the 16-step gray scale computer signal with
Input 1 [RGB(Analog)] mode.
2. Enter the service mode, select group no. "
7
8
"
" (Blue) or "
" (Red), and change data values
respectively to make a proper white balance.
[AV WHITE BALANCE ADJUSTMENT]
3. Receive the 16-step gray scale composite video sig-
nal with Input 3 [Video] mode.
4. Enter the service mode, select group no. "
7
8
"
" (Blue) or "
" (Red), and change data values
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 comput-
er and "Color Shading Correction" software supplied
separately. The software can be ordered as follows;
COLOR SHADING CORRECTION SOFTWARE
Service Parts No.
51
" and change data
4
", item no.
4
", item no.
645 056 6288
or 645 066 7428
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