Christie J Series User Manual page 93

Step 1: Setup
a. Adjust primary colors see
ensure matched overall color temperatures and light output between screens.
IMPORTANT!
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
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-
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.
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.
b. Return to the Brightness Uniformity menu. Beginning with the screen that exhibits the most obvious
color shift(s), for each edge that exhibits a noticeably different color temperature from the center, select the
corresponding Uniformity adjustment menu—Left, Right, Top or Bottom. For example, if any part of
the left side is too blue, too red or too green, go to the Left Uniformity menu and adjust the colors (i.e.,
change their light output) until all portions of the left side closely match the center color temperature.
Adjust an edge first (focusing on its center), and then adjust its corners.
Repeat the color adjustment of sides and corners for each edge of the screen that does not yet match the center
(note that each corner is adjustable in either of its two adjacent "side" menus). When done, all areas of a given
screen should match. Repeat Steps 2a & 2b for all remaining screens.
J Series 1000W and 1200W User Manual
020-100706-02 Rev. 1 (03-2014)
3.12 Using Multiple
Double-check that all WHITES and LIGHT OUTPUT are well-matched.
matched applications!
Projectors: Matching Colors in Multiple Screens
13-Point Test
F
IGURE
2) Always ignore menu colors.
Section 3: Operation
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