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3-42 J Series 2.0, 2.4, and 3.0kW User Manual
020-100707-01 Rev. 1 (10-2011)
Section 3: Operation

USE A “USER” COLOR TEMPERATURE—
Always adjust brightness uniformity for a User color temperature
defined when you matched primary colors, and continue to use it for all sources displayed on the wall.
Your other color temperatures will not necessarily be matched from screen-to-screen.

WHITE UNIFORMITY SLIDE BARS—
White Uniformity slide bar values may not reduce to “0”. Each slide
bar adjusts overall light output in a specific screen zone, but the value shown represents the current setting
for green in this zone. When other “hidden” values (red or blue) are lower than green, during adjustment in
the
White Uniformity menu their values will reach “0” first, causing the slide bar to stop earlier than
expected.

JUDGE BY EYE OR USE A METER—
Good brightness uniformity can be achieved with either.
Step 1: Setup
a. Adjust primary colors see 3.12 Using Multiple Projectors : Matching Colors in Multiple Screens to
ensure matched overall color temperatures and light output between screens.
IMPORTANT! Double-check that all WHITES and LIGHT OUTPUT are well-matched.
b. Enable the Brightness Uniformity check box. This will enable access to the uniformity controls and
will apply the settings to your image.
c. Select the 13-Point test pattern for display. This pattern
provides nine screen “zones” with 13 targets, see 13-Point Test
Pattern .
FOR BEST RESULTS Rather than examining the CENTER of each
zone when assessing Brightness Uniformity adjustments focus on
extreme EDGES as indicated in the illustration at right.
d. In either Color Adjustments menu, select a “User” color. Then:
• If you have created a “User 1” color gamut (recommended)
for a well-matched wall, continue to Step 1e.
•
If you prefer maximum brightness rather than a particular
color temperature, select Max Drives .
IMPORTANT!
Do not change User 1 Color Adjustment in color-
matched applications!
e. In the White Uniformity menu, and set the “Overall” output level to 50.0 and all remaining slide bars
to 0.0 . This decreases the light output just enough throughout the screen so that any color level can
then be increased later as necessary for matching light output from zone-to-zone. Do not exceed 50.0
for “Overall”—a higher level will likely interfere with achieving brightness uniformity and is not
recommended.
Ensure that overall light output remains well matched from one screen center to the next. Where necessary,
increase or decrease Lamp Power slightly to recover center matches.
Step 2: Adjust Color (level of red/green/blue) in Eight Zones
NOTES: 1)
At this point, ignore the brightness of individual zones.
2)
Always ignore menu colors.
a. On each screen, compare the color temperatures in the eight target zones (four edges and four corners)
to that of the color temperature of the center. Compare using a white field only, and take note of any
areas that do not match the center. Also decide if any screen exhibits a more obvious color shift than
other screens—begin with this screen in Step 2b.
F
IGURE
3-35 13-P
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