-26-
Electrical Adjustments
1. Receive the 16-step gray scale computer signal with
Computer 1 [Analog RGB]
mode.
2. Enter the service mode.
3. Connect an oscilloscope to test point “
TP531
” (+) and
chassis ground (-).
4. Select group no. “
5
”, Item no. “
11
” and adjust the
black level to be maximum amplitude by changing the
Data value.
5. Connect an oscilloscope to test point “
TP501
” (+) and
chassis ground (-).
6. Select Item no. “
12
” and adjust the black level to be
maximum amplitude by changing the Data value.
7. Connect an oscilloscope to test point “
TP561
” (+) and
chassis ground (-).
8. Select Item no. “
13
” and adjust the black level to be
maximum amplitude by changing the Data value.
Pedestal Level
Black Level
Pedestal adjustment [PC]
4
1. Receive the 16-step gray scale computer signal with
Computer 1 [Analog RGB]
mode.
2. Enter the service mode.
3. Connect an oscilloscope to test point “
TP2531
” (+)
and chassis ground (-).
4. Select group no. “
5
”, Item no. “
7
” and adjust the ampli-
tude “a” to be
2.0
±0.1V by changing the Data value.
5. Select Item no. “
6
” and adjust the amplitude “b” to be
7.1
±0.1V by changing the Data value.
(a)
(b)
GND
NRS adjustment
3
1. Receive the 16-step gray scale computer signal with
Computer 1 [Analog RGB]
mode.
2. Enter the service mode.
3. Connect an oscilloscope to test point “
TP531
” (+)
and chassis ground (-).
4. Select group no. “
5
”, Item no. “
3
” and adjust the
amplitude “a” to be
10.0
±0.1V by changing the
Data value.
5. Connect an oscilloscope to test point “
TP501
” (+)
and chassis ground (-).
6. Select Item no. “
4
” and adjust the amplitude “a” to be
9.25
±0.1V by changing the Data value.
7. Connect an oscilloscope to test point “
TP561
” (+)
and chassis ground (-).
8. Select Item no. “
5
” and adjust the amplitude “a” to be
10.0
±0.1V by changing the Data value.
(a)
black level
black level
Black Level adjustment [PC]
6
1. Receive the 16-step gray scale computer signal with
Computer 1 [Analog RGB]
mode.
2. Enter the service mode.
3. Connect an oscilloscope to test point “
TP531
” (+)
and chassis ground (-).
4. Select group no. “
4
”, Item no. “
3
” and adjust the white
level to be minimum amplitude by changing the Data
value.
5. Connect an oscilloscope to test point “
TP501
” (+)
and chassis ground (-).
6. Select Item no. “
4
” and adjust the white level to be
minimum amplitude by changing the Data value.
7. Connect an oscilloscope to test point “
TP561
” (+)
and chassis ground (-).
8. Select Item no. “
5
” and adjust the white level to be
minimum amplitude by changing the Data value.
(a)
White Level
Video Gain adjustment [PC]
5
Содержание LC-XG110
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