-32-
Electrical Adjustments
,
50% White adjustment [PC]
Equipment
Luminance meter
Input mode
Computer 1 (RGB)
Input signal
100%-white and 50%-gray com-
puter signal
1. Enter the service mode.
2. Input the 100%-white computer signal and measure
luminance on the screen with the luminance meter. It
is
A
for the reading of luminance meter.
3. Change the signal source to the 50%-white computer
signal.
4. Select group no. “
100
”, item no. “
6
” and change the
Data value to make the reading of luminance meter to
be
A x 22%.
m
Common Voltage adjustment
Input mode
Computer 1 (RGB)
Input signal
50%-RGB pattern computer signals
or 16-step gray scale computer sig-
nal
1. Enter the service mode.
2. Select Group "
100
", No. "
92
" 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
101 - 0
for red flicker
101 - 1
for green flicker
101 - 2
for blue flicker
4. Select Group "
100
", No. "
92
" and then change data
value from "
2
" to "
0
".
.
50% White adjustment [Video]
Equipment
Luminance meter
Input mode
Video (Video)
Input signal
100%-white and 50%-gray compos-
ite video signal
1. Enter the service mode.
2. Input the 100%-white composite video signal and
measure luminance on the screen with the luminance
meter. It is
A
for the reading of luminance meter.
3. Change the signal source to the 50%-white composite
video signal.
4. Select group no. “
100
”, item no. “
6
” and change the
Data value to make the reading of luminance meter to
be
A x 22%.
⁄0
White Balance adjustment [PC]
Input mode
Computer 1 (RGB) mode
Input signal
16-step gray scale or 50% white pat-
tern computer signal
1. Enter the service mode.
2. Change data value to obtain the proper white balance.
Group No.
Adjustment
100 - 7
red color balance
100 - 8
Blue color balance
⁄1
White Balance adjustment [Video]
Input mode
Video (Video) mode
Input signal
16-step gray scale or 50% white pat-
tern composite video signal
1. Enter the service mode.
2. Change data value to obtain the proper white balance.
Group No.
Adjustment
100 - 7
red color balance
100 - 8
Blue color balance
⁄2
Color Shading Correction adjustment
Software
PROJECTOR SERVICE TOOL v4.20
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 below.
4-input patterns:
6.25% gray, 12.5% gray, 25% gray, 50% gray
The Color Shading Correction software CD-ROM can be
ordered with following service code.
PrOJeCtOr SerVICe tOOL Cd-rOM v4.20
SerVICe COde: 610 343 5596
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