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Electrical Adjustments
v Auto Calibration adjustment [Component]
1. Enter the service mode.
. Receive the 16-step grey scale 480i-component sig-
computer1 [component]
nal with
3. To start the auto-calibration for Component adjust-
ment, select group no. "
change data value from "
bration completed, "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 16-step grey scale 480i-component signal
computer1 [component]
with
3. Connect an oscilloscope to test point "
and chassis ground (-).
0
4. Select group no. "
" , item no. "
value to adjust the pedestal level and black level to be
the same level.
5. Connect an oscilloscope to test point "
and chassis ground (-).
1
6. Select item no. "
" and change data value to adjust
the pedestal level and black level to be the same lev-
el.
7 . Connect an oscilloscope to test point "
and chassis ground (-).
2
8. Select item no. "
" and change data value to adjust
the pedestal level and black level to be the same lev-
el.
Gain adjustment [component]
1. Enter the service mode.
. Receive the 16-step grey scale 480i-component signal
computer1 [component]
with
3. Connect an oscilloscope to test point "
and chassis ground (-).
0
4. Select group no. "
" , item no. "
a
tude "
" to be minimum by changing the Data value.
White Level
(a)
mode.
260
0
" , item no. "
" and then
0
1
" to "
" . After the auto-cali-
mode.
tP_G1
" (+)
0
" and change data
tP_r1
" (+)
tP_B1
" (+)
mode.
tP_G1
" (+)
3
" and adjust the ampli-
b Auto Calibration adjustment [Video]
1. Enter the service mode.
. Receive the 16-step grey scale composite video sig-
Video [Video]
nal with
3. To start the auto-calibration for Component adjust-
ment, select group no. "
change data value from "
bration completed, "OK" will appear on the screen.
below adjustment is performed when the above auto
calibration is failed.
Gain adjustment [Video]
1. Enter the service mode.
. Receive the 16-step grey scale composite video signal
Video [Video]
with
3. Connect an oscilloscope to test point "
and chassis ground (-).
4. Select group no. "
a
amplitude "
" to be minimum by changing the Data
value.
(a)
-9-
mode.
260
0
" , item no. "
" and then
0
1
" to "
" . After the auto-cali-
mode.
tP_G1
20
0
" , item no. "
" and adjust the
White Level
" (+)
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