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Gain adjustment [PC]
1. Enter the service mode.
. Receive the 16-step grey scale computer signal with
puter1 [RGB]
mode.
3. Connect an oscilloscope to test point "
chassis ground (-).
0
4. Select group no. "
", item no. "
a
"
" to be minimum by changing the Data value.
5. Connect an oscilloscope to test point "
chassis ground (-).
0
6. Select group no. "
", item no. "
a
"
" to be minimum by changing the Data value.
7. Connect an oscilloscope to test point "
chassis ground (-).
0
8. Select group no. "
", item no. "
a
"
" to be minimum by changing the Data value.
White Level
(a)
4. Auto Calibration adjustment [Video]
1. Enter the service mode.
. Receive the 16-step grey scale composite video signal
Video [Video]
with
mode.
3. To start the auto-calibration for Component adjustment,
260
select group no. "
", item no. "
0
1
value from "
" to "
". After the auto-calibration complet-
ed, "OK" will appear on the screen.
below adjustment is performed when the above auto cali-
bration is failed.
Gain adjustment [Video]
1. Enter the service mode.
. Receive the 16-step grey scale composite video signal with
Video [Video]
mode.
3. Connect an oscilloscope to test point "
chassis ground (-).
20
4. Select group no. "
", item no. "
a
tude "
" to be minimum by changing the Data value.
White Level
(a)
Com-
tP35G
" (+) and
3
" and adjust the amplitude
tP35R
" (+) and
4
" and adjust the amplitude
tP35B
" (+) and
5
" and adjust the amplitude
0
" and then change data
tP35G
" (+) and
0
" and adjust the ampli-
5. Auto Calibration adjustment [Component]
1. Enter the service mode.
. Receive the Color Bar 480i-component signal with
[Component]
mode.
3. To start the auto-calibration for Component adjustment,
260
select group no. "
0
1
value from "
" to "
ed, "OK" will appear on the screen.
Below adjustments are performed when the above auto
calibration is failed.
Pedestal adjustment [Component]
1. Enter the service mode.
. Receive the Color Bar 480i-component signal with
[Component]
mode.
3. Connect an oscilloscope to test point "
chassis ground (-).
0
4. Select group no. "
to adjust the pedestal level and black level to be the same
level.
5. Connect an oscilloscope to test point "
chassis ground (-).
1
6. Select item no. "
" and change data value to adjust the
pedestal level and black level to be the same level.
7. Connect an oscilloscope to test point "
chassis ground (-).
2
8. Select item no. "
" and change data value to adjust the
pedestal level and black level to be the same level.
Gain adjustment [Component]
1. Enter the service mode.
. Receive the Color Bar 480i-component signal with
[Component]
mode.
3. Connect an oscilloscope to test point "
chassis ground (-).
0
4. Select group no. "
", item no. "
a
"
" to be minimum by changing the Data value.
(a)
- 43 -
Optical Adjustments
0
", item no. "
" and then change data
". After the auto-calibration complet-
tP35G
0
", item no. "
" and change data value
tP35R
tP35B
tP35G
3
" and adjust the amplitude
White Level
Video
Video
" (+) and
" (+) and
" (+) and
Video
" (+) and
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