Sanyo PLC-XF60A Service Manual page 44

Electrical Adjustments
c DC adjustment
1
Receive the 16-step grey scale computer signal with
INPUT 2 [RGB] mode.
2
Enter the service mode and select group no. "
3
Connect a digital voltmeter to test point "
and chassis ground (-). Select item no. "
data value to adjust voltage to be
4
Connect a digital voltmeter to test point "
and chassis ground (-). Select item no. "
data value to adjust voltage to be
5
Connect a digital voltmeter to test point "
and chassis ground (-). Select item no. "
data value to adjust voltage to be
6
Connect a digital voltmeter to test point "
and chassis ground (-). Select item no. "
data value to adjust voltage to be
7
Connect a digital voltmeter to test point "
and chassis ground (-). Select item no. "
data value to adjust voltage to be
8
Connect a digital voltmeter to test point "
and chassis ground (-). Select item no. "
data value to adjust voltage to be
v Video level adjustment
1
Receive the 16-step grey scale computer signal with
INPUT 2 [RGB] mode.
2
Enter the service mode and select group no. "
3
Connect an oscilloscope to test point "
and chassis ground (-). Select item no. "
data value to adjust the amplitude to be
4
Connect an oscilloscope to test point "
and chassis ground (-). Select item no. "
data value to adjust the amplitude to be
5
Connect an oscilloscope to test point "
and chassis ground (-). Select item no. "
data value to adjust the amplitude to be
(a)
200
TPV1G
0
" and change
6.5
±0.1V.
TPV1R
1
" and change
6.5
±0.1V.
TPV1B
2
" and change
6.5
±0.1V.
TPV2G
3
" and change
7.5
±0.1V.
TPV2R
4
" and change
7.5
±0.1V.
TPV2B
5
" and change
7.5
±0.1V.
200
TP_GVID1
6
" and change
10.0
±0.05Vp-p.
TP_RVID1
7
" and change
10.0
±0.05Vp-p.
TP_BVID1
8
" and change
10.0
±0.05Vp-p.
black level
black level
b Input adjustment
PC Input adjustment
1
Receive the 100% whole-white computer signal with
".
INPUT 2 [RGB] mode.
" (+) 2
Enter the service mode and select group no. "
3
Select item no. "
1
fault) to " ". The adjustment will be carried out automati-
" (+)
cally and the data value changes to "
auto-adjustment correctly.
If the data value changes to "
" (+)
again until the data is "2".
AV Input adjustment
" (+)
1
Receive the 100% whole-white component signal with
INPUT 2 [Y/Cr/Cb] mode.
2
Enter the service mode and select group no. "
" (+)
3
Select item no. "
1
fault) to " ". The adjustment will be carried out automati-
cally and the data value changes to "
" (+)
auto-adjustment correctly.
If the data value changes to "
again until the data is "2".
".
" (+)
" (+)
" (+)
- 44 -
0
" and change data value from "
2
" when finishing the
-1
", take adjustment above
0
" and change data value from "
2
" when finishing the
-1
", take adjustment above
784
".
0
" (de-
783
".
0
" (de-