Sanyo PLC-WXU30, Руководство по обслуживанию

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Electrical Adjustments
1. Enter the service mode.
. Receive the 16-step grey scale composite video sig-
nal with
Video[Video]
mode.
3. Connect an oscilloscope to test point “
tP_G1
” (+)
and chassis ground (-).
4. In Dynamic mode, select group no. " 100 ", item no.
" 235 " and change data value to " 0 ".
5. Select group no. “
100
”, item no. “
6
” and change data
value to adjust amplitude “
a
” to be
0.85V
.
6. select group no. " 100 ", item no. " 235 " and change
data value to " 1 ".
(a)
white level
white level
.
50% White adjustment [Video]
1. Enter the service mode.
. Receive the 16-step grey scale composite video sig-
nal with
Video[Video]
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.
⁄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
After replacing the G-sensor circuit (IC3851, IC180
and peripheral circuit), readjust the Keystone Offset
adjustment as follows.
1. Put the projector on a horizontal place with the
adjustable feet being minimum range and then enter
the service mode.
. Select group no. “
102
”, item no. “
3
” and set data
value from “
0
” to “
5
”.
3. By pressing the
SeLect
button, the Keystone
Offset adjustment will start.
4. When it has completed, the "OK" message will
appear on the screen.
5. By pressing any button on the projector or the
remote control, the "OK" message will disappear.
(Data value of Group no. “10”, item no. “3” will be
back from “5” to “0” for initial value.)
⁄1
Keystone Offset adjustment