-69-
Electrical Adjustment
PROJECTOR SERVICE TOOL Ver. 4.10
Service Parts No. 610 337 8787
13. Filter calibration
1. Enter the service mode, select Group “170”, No. “0”.
2. 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 cartridge with new one or scroll up the filter sheet
and make sure the cabinet top, filter cover and filter car-
tridge are securely installed.
12. 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 following
service code.
11. White balance adjustment
1. Enter the service mode. (Input signal is not required.)
2. Select Group and No. of white balance adjustment
items referring to the table below. For example, when
adjusting the white balance in the Standard PC mode,
select Group - No. "982 - 4 (X value)" or "982 - 8 (Y
value)".
3. Change the Data value.
4. Select Group "982", No. "24". When the data value
is changed "0" to "10", the adjustment is performed
automatically. This adjustment takes in a few seconds
and the displayed adjustment Group -No. changes to
"930 - 0".
5. Check proper white balance and gray scale are ob-
tained in the selected input mode.
i This white balance adjustment can be done in each
lamp mode of "2 lamps", "Lamp 1" and "Lamp 2".
Group-No.
Input Adjustment Mode (X, Y)
Data (Initial value)
982 - 4 PC Standard - X 310
982 - 5 PC Real - X 330
982 - 6 AV Standard - X 310
982 - 7 AV Cinema - X 330
982 - 8 PC Standard - Y 330
982 - 9 PC Real -Y 350
982 - 10 AV Standard - Y 330
982 - 11 AV Cinema -Y 350
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