Sanyo PLC-XE50, Руководство по обслуживанию

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Service Adjustment
1. Enter the service mode,
2. 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 proper white
balance.
Confirm that the same white balance is obtained in video
and computer input.
8. White Balance adjustment [PC]
1. Enter the service mode.
2. Receive the 16-step grey scale computer signal with
Computer1 [RGB]
mode.
3. Connect an oscilloscope to test point “
TP35G
” (+) 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
7. 50% White adjustment [PC]
1. Enter the service mode.
2. 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.
6. Common Center adjustment
1. Enter the service mode.
2. Receive the 16-step grey scale composite video signal
with
Video[Video]
mode.
3. Connect an oscilloscope to test point “
TP35G
” (+) 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
9. 50% White adjustment [Video]
1. Enter the service mode.
2. Receive the 16-step grey scale composite video signal
with
Video[Video]
mode.
3. 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.
10. White Balance adjustment [Video]