Sanyo PLC-XE50 Service Manual page 43

2. Panel Type Check and Setting
* Before setting, you need to check which type of LCD panel is
placed on the projector according to the item "LCD Panel/Prism
Ass'y removal" in the chapter "Optical Parts Disassembly".
1. Enter the service mode.
2. Panel Type Check
290
Select group no. " ", item no. "
as follows;
Data value: 0 For L-Type of LCD Panel
Data value: 20 For R-Type of LCD panel
3. Panel Type Setting
290
Select group no. " ", item no. "
ue from 10 to 0 or 20 depending on your LCD Panel type.
When the data value reaches 0 or 20, it returns to 10 quick-
ly. The gamma-characteristics changes according to your
selection.
3. Auto Calibration adjustment [PC]
1. Enter the service mode.
2. Receive the 16-step grey scale computer signal with
puter1 [RGB]
mode.
Lamp control High mode.
G-sync Off
3. To start the auto-calibration for PC adjustment, select
260
group no. " ", item no. "
0 1
from " " to " ". After the auto-calibration completed, "OK"
will appear on the screen.
White 100%
0
". Check the data value
1
" and change data val-
Com-
0
" and then change data value
Black 100%
Below adjustments are performed when the above auto
calibration is failed.
Pedestal adjustment [PC]
1. Enter the service mode.
2. 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. "
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 [PC]
1. Enter the service mode.
2. 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.
(a)
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Service Adjustment
TP35G
" (+) and
0
" and change data value
TP35R
" (+) and
TP35B
" (+) and
TP35G
" (+) and
3
" and adjust the amplitude
TP35R
" (+) and
4
" and adjust the amplitude
TP35B
" (+) and
5
" and adjust the amplitude
White Level
Com-
Com-