Sanyo PLC-XTC50AL, Service Manual, Page: 54 / 176

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Electrical Adjustment
.
White Balance adjustment
Input mode Computer mode
Input signal 16-step gray scale computer signal
1. Enter the service mode.
. Change data value to obtain the proper white balance.
Group No. Adjustment
104 - 217 red color balance
104 - 219 Blue color balance
⁄0
Wind Sensor calibration
1. Enter the service mode, select group no. “ 240 ” and
item no. “ 0 ” .
. To start the adjustment, change data value from “ 0 ”
to “ 1 ”. After the auto-calibration completed, "OK" will
appear on the screen.
IMPORTANT
Before taking this adjustment, you need to replace the air
filter with new one or scroll up the filter sheet and make
sure the cabinet top, filter cover and filter cartridge are
securely installed.
m
Gamma shipment adjustment
Software PROJECTOR SERVICE TOOL v4.0
Use the software to obtain the proper gray scale. See the
further information of the software instruction manual.
,
Color Shading Correction adjustment
Software PROJECTOR SERVICE TOOL v4.0
Use the software to correct the color shading of the
screen. This must be done in Lamp1 and Lamp mode.
See the further information of the software instruction
manual.
The color shading correction adjustment for this model
should be performed with the whole-gray patterns speci-
fied as below.
4-input patterns:
6% gray, 13% gray, 25% gray, 50% gray
n
Common Voltage adjustment
Input mode Computer mode
Input signal 50%-RGB pattern computer signals
or 16-step gray scale computer sig-
nal
1. Enter the service mode.
. Select Group "
104 ", No. " 76 " and then change data
value from " 0 " to " 2 " to reduce the panel frequency.
3. Change data value to obtain the minimum flicker for
each color on screen.
Group No. Adjustment
105 - 9 for red flicker
105 - 10 for green flicker
105 - 11 for blue flicker
4. Select Group " 104 ", No. " 76 " and then change data
value from " 2 " to " 0 ".