Common Center Adjustment - Sanyo PLC-WXU30A Service Manual

Electrical Adjustments
v Auto Calibration adjustment [Component]
1. Enter the service mode.
. Receive the 8 color 100% color bar 480i-component
Computer2 [Component]
signal 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.
8
. Receive the 1 color 100% color bar 480i-component
Computer2 [Component]
signal with
3. Connect an oscilloscope to test point "
chassis ground (-).
0
4. Select group no. " ", item no. "
ue 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 8 color 100% color bar 480i-component
Computer2 [Component]
with
3. Connect an oscilloscope to test point "
chassis ground (-).
0
4. Select group no. " ", item no. "
a
tude " " 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
tude " " 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
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
" (+) and
0
" and change data val-
tP_R1
" (+) and
tP_B1
" (+) and
mode.
tP_G1
" (+) and
3
" and adjust the ampli-
tP_R1
" (+) and
4
" and adjust the ampli-
tP_B1
" (+) and
5
" 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 "
chassis ground (-).
20
4. Select group no. "
a
tude " " to be minimum by changing the Data value.
(a)
n Common Center adjustment
1. Enter the service mode.
. Receive the 50%-Whole Gray computer signal with
Computer2 [RGB] mode.
100
3. Select group no. "
2
data value to " " to reduce the panel frequency.
4. Project only green light component to the screen.
101
5. Select group no. "
value to obtain the minimum flicker on the screen.
6. Project only red light component to the screen.
0
7. Select item no. " " and change data value to obtain
the minimum flicker on the screen.
8. Project only blue light component to the screen.
2
9. Select item no. "
the minimum flicker on the screen.
10. Select group no. "
0
data value to " " to reset the panel frequency.
-9-
mode.
260 0
", item no. " " and then
0 1
" to " ". After the auto-cali-
mode.
tP_G1
0
", item no. " " and adjust the ampli-
White Level
92
", item no. " " and change
1
", item no. " " and change data
and change data value to obtain
100 92
", item no. " " and change
" (+) and