Sanyo PLC-XU40, Руководство по обслуживанию

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Electrical Adjustments
1. Receive the 1 dot black & white pattern computer sig-
nal with Computer [Analog RGB] mode.
2. Enter the service mode.
3. Project only red light component to the screen.
4. Select item no. “
19
” and change data value to obtain
the minimum flicker on the screen.
6. Project only green light component to the screen.
7. Select item no. “
20
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. “
21
” and change data value to obtain
the minimum flicker on the screen.
.
Common Center adjustment
1. Receive the 16-step gray scale component video sig-
nal [480i] with Video [Y,Cr,Cb] mode.
2. Enter the service mode.
3. Connect an oscilloscope to test point “
TP505R
” (+)
and chassis ground (-).
4. Select item no. “
4
” and adjust the amplitude “a” to be
minimum by changing the Data value.
5. Connect an oscilloscope to test point “
TP503G
” (+)
and chassis ground (-).
6. Select item no. “
5
” and adjust the amplitude “a” to be
minimum by changing the Data value.
7. Connect an oscilloscope to test point “
TP501B
” (+)
and chassis ground (-).
8. Select item no. “
6
” and adjust the amplitude “a” to be
minimum by changing the Data value.
(a)
White Level
n
Gain adjustment [Component]
1. Receive the 16-step gray scale computer signal with
Computer [Analog RGB] mode.
2. Enter the service mode.
3. Connect an oscilloscope to test point “
TP505R
” (+)
and chassis ground (-).
4. Select item no. “
13
” and adjust the amplitude “a” to
be
4.0
±0.1V by changing the Data value.
5. Connect an oscilloscope to test point “
TP503G
” (+)
and chassis ground (-).
6. Select item no. “
14
” and adjust the amplitude “a” to
be
4.0
±0.1V by changing the Data value.
7. Connect an oscilloscope to test point “
TP501B
” (+)
and chassis ground (-).
8. Select item no. “
15
” and adjust the amplitude “a” to
be
4.0
±0.1V by changing the Data value.
(a)
m
Gamma Gain adjustment [PC]
1. Receive the 16-step gray scale composite video sig-
nal with Video [Video] mode.
2. Enter the service mode.
3. Connect an oscilloscope to test point “
TP505R
” (+)
and chassis ground (-).
4. Select item no. “
13
” and adjust the amplitude “a” to
be
4.0
±0.1V by changing the Data value.
5. Connect an oscilloscope to test point “
TP503G
” (+)
and chassis ground (-).
6. Select item no. “
14
” and adjust the amplitude “a” to
be
4.0
±0.1V by changing the Data value.
7. Connect an oscilloscope to test point “
TP501B
” (+)
and chassis ground (-).
8. Select item no. “
15
” and adjust the amplitude “a” to
be
4.0
±0.1V by changing the Data value.
(a)
,
Gamma Gain adjustment [AV]