-39-
Electrical Adjustments
10. Color shading correction adjustment
Software PROJECTOR SERVICE TOOL v4.20
Signal pattern 6%, 13%, 25%, 50% whole gray
Use the software to correct the color shading of the
screen. See the further information of the software in-
struction manual.
The color shading correction adjustment for this model
should be performed with the whole-gray patterns speci-
fied as above.
Corresponding to the pull-down menu of the gray level
selector on the software.
Level 0
:6%
Level 384
:13%
Level 640
:25%
Level 1032 :50%
Relation of level (%) indication and signal pattern
0%
:Black
100%
:White
7. 50% white adjustment [PC]
Equipment
Illuminance meter
Input mode
Computer1 (RGB)
Input signal
XGA computer signal
Input patterns
100%-white and 50%-gray sig-
nals
1. Enter the service mode.
2. Input the 100%-white computer signal and measure
illuminance on the screen with the illuminance meter.
It is
A
for the reading of illuminance meter.
3. Change the signal source to the 50%-white computer
signal.
4. Select Group "
100
", No."
6
" and change the data val-
ue to make the reading of illuminance meter to be
A
x 22%
.
8. White balance adjustment [PC]
Input mode
Computer 1 (RGB)
Input signal
XGA computer signal
Signal patterns
16-step gray signals
1. Enter the service mode.
2. Select Group "
100
", No. "
7
" (Red) or
"
8
"
(Blue), and
change Data values respectively to make a proper
white balance.
Group - No. Adjustment
101 - 7 Color balance Red
101 - 8 Color balance Blue
9. Gamma correction adjustment
Software
PROJECTOR SERVICE TOOL v4.20
Use the software to obtain the proper gray scale of the
screen. See the further information of the software in-
struction manual.
6. Common center adjustment
Input mode
Computer 1 (RGB)
Input signal
XGA computer signal
Signal patterns
50% R, G, B whole signals
1. Enter the service mode
2. Select Group "
100
", No. "
92
" and change the data
value from "
0
" to "
2
" to reduce the panel frequency.
3. Change data value to obtain the minimum flicker for
each color on the screen.
Group - No.
Adjustment
101 - 1
for green flicker
101 - 0
for red flicker
101 - 2
for blue flicker
4. Select Group "
100
", No. "
92
" and change the data
value from "
2
" to "
0
" to reset the panel frequency.
