Sanyo PLC-ET30L, Service Manual

Page: 59 / 154

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Electrical Adjustment
,
Filter Calibration adjustment
1. Enter the service mode, select group no. “
251
” 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 clean up it and make sure the
filter is securely installed.
ProJector SerVIce tooL Ver. 4.11
Service Parts No. 610 340 8811
Read/Write of gamma data
When replacing the main board, take read/write proce-
dure of the gamma adjustment data and color shading
correction data.
The “gamma adjustment data” and “color shading cor-
rection data” of each panel have been adjusted precisely
at the factory to match the characteristics of each panel.
When you replace the main board, you need to read out
the "gamma adjustment data" and "color shading correc-
tion data" stored in the memory IC on the previous main
board and write down them into the memory IC on the
new main board. By this way, the projector is enabled to
reproduce the picture which has the properly adjusted
gamma characteristic and color shading correction.
Use "Projector Service Tool" software for Read/Write of
the gamma adjustment data and color shading correc-
tion data.
The Projector Service Tool can be ordered with fol-
lowing service code.
m
Color Shading Correction adjustments
If the correction of the Color shading adjustment is nec-
essary, please adjust the “Color shading” by using the
“PROJECTOR SERVICE TOOL” software supplied sep-
arately.
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