Sanyo PLC-XL45, Руководство по обслуживанию

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Electrical Adjustments
1. Receive the 50%-Whole Gray computer signal with
Computer1 [RGB] mode.
. Enter the service mode.
3. Select group no. “
9
”, 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. “
10
”, 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. “
9
”, item no. “
92
” and change
data value to “
0
” to reset the panel frequency.
,
Common Center adjustment
1. Receive the 16-step grey scale computer signal with
Computer1 [RGB] mode.
. Enter the service mode.
3. Connect an oscilloscope to test point “
tP_G1
” (+)
and chassis ground (-).
4. Select group no. “
9
”, item no. “
7
” and change data
value to adjust amplitude “a” to be
1.6
±0.1V.
(a)
white level
white level
.
50% White adjustment [PC]
1. Receive the 16-step grey scale composite signal with
Video [Video] mode.
. Enter the service mode.
3. Connect an oscilloscope to test point “
tP_G1
” (+)
and chassis ground (-).
4. Select group no. “
103
”, item no. “
0
” and adjust the
amplitude “a” to be
minimum
by changing the Data
value.
(a)
White Level
m
Gain adjustment [Video]
1. Receive the 16-step grey scale composite video sig-
nal with Video [Video] mode.
. Enter the service mode.
3. Connect an oscilloscope to test point “
tP_G1
” (+)
and chassis ground (-).
4. Select group no. “
9
”, item no. “
7
” and change data
value to adjust amplitude “a” to be
1.6
±0.1V.
(a)
white level
white level
⁄0
50% White adjustment [Video]
1. Receive the 16-step grey scale composite video sig-
nal with
Video [Video]
mode.
. Enter the service mode, select group no. “
9
” item
no. “
6
” (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.
⁄2
White Balance adjustment [Video]
Note On White Uniformity Adjustment
If you find the color shading on the screen, please
adjust the white uniformity by using the proper
computer 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. Receive the 16-step gray scale computer signal with
Computer1 [RGB] mode.
. Enter the service mode, select group no. “
9
” item
no. “
6
” (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.
⁄1
White Balance adjustment [PC]