Christie M Series User Manual page 85

Section 3: Operation

SET LAMP POWER—
still maintaining a good overall match of light output from screen-to-screen. By nature, achieving a uni-
form brightness will require a slightly reduced overall brightness—this reduction will help ensure that you
have enough range of adjustment when examining brightness variables more closely from screen-to-
screen, and will help prevent premature "maxing out" when trying to match to a certain color, zone or pro-
jector.
NOTE:
Power mode, use the Manual Iris Position slidebar to adjust brightness. In Constant Intensity mode, use
the Intensity slidebar to adjust brightness.

USE 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—
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—
Step 1: General 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.
3-42
Ensure that each Lamp Power setting is as high as possible for your application while
On DLV models, the Power control is fixed at 150W to maximize lamp life. In Constant
White Uniformity slide bar values may not reduce to "0". Each slide
Good brightness uniformity can be achieved with either.
3.12 Using Multiple
Double-check that all WHITES and LIGHT OUTPUT are well-matched.
matched applications!
Always adjust brightness uniformity for a User color temperature
Projectors: Matching Colors in Multiple Screens
13-Point Test
F 3-35 13-P T
IGURE OINT EST
M Series User Manual
020-100009-04 Rev. 1 (10-2009)
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ATTERN