Sanyo PLC-XU75, Руководство по обслуживанию

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1. Receive the 16-step grey scale composite video sig-
nal with
Video
mode.
. Enter the service mode.
3. Connect an oscilloscope to test point “
tP_G1
” (+)
and chassis ground (-).
4. Select group no. “
100
”, item no. “
6
” and change data
value to adjust amplitude “
a
” to be
2.2 ±0.1V
.
(a)
white level
white level
.
50% White adjustment [Video]
1. Receive the 16-step grey scale composite video sig-
nal with
Video
mode.
. Enter the service mode, select group no. “
100
” item
no. “
7
” (Red) or “
8
” (Blue), and change Data values
respectively to make a proper white balance.
Confirm that the same white balance is obtained in video
and computer input.
⁄0
White Balance adjustment [Video]
Note On White Uniformity Adjustment
If you find the color shading on the screen, please ad-
just the white uniformity by using the proper computer
and “Color Shading Correction” software supplied sep-
arately.
The software can be ordered as follows;
coLor SHAdING correctIoN Ver. 4.00
Service Parts No. 645 075 9611
1. Enter the service mode,
. Receive the 16-step gray scale computer signal with
computer1 [rGB]
mode.
3. Select group no. “
100
” item no. “
7
” (Red) or “
8
” (Blue),
and change Data values respectively to make a prop-
er white balance.
Confirm that the same white balance is obtained in video
and computer input.
,
White Balance adjustment [PC]
1. Enter the service mode.
. Receive the 16-step grey scale computer signal with
computer1 [rGB]
mode.
3. Connect an oscilloscope to test point “
tP_G1
” (+)
and chassis ground (-).
4. Select group no. “
100
”, item no. “
6
” and change data
value to adjust amplitude “
a
” to be
1.6 ±0.1V
.
(a)
white level
white level
m
50% White adjustment [PC]
1. Enter the service mode.
. Receive the 50%-Whole Gray computer signal with
computer1 [rGB] mode.
3. Select group no. “
100
”, item no. “
92
” and change
data value to “
2
” to reduce the panel frequency.
4. Project only green light component to the screen.
5. Select group no. “
101
”, item no. “
1
” and change
data value to obtain the minimum flicker on the
screen.
6. Project only red light component to the screen.
7. Select item no. “
0
” and change data value to obtain
the minimum flicker on the screen.
8. Project only blue light component to the screen.
9. Select item no. “
2
and change data value to obtain
the minimum flicker on the screen.
10. Select group no. “
100
”, item no. “
92
” and change
data value to “
0
” to reset the panel frequency.
n
Common Center adjustment