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Select the 13 Point test pattern for display.
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This pattern provides 9 screen "zones" with
13 targets.
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.
In the Advanced Color Temperature menu,
G
select "User 1". Then:
N
If you have adjusted "User 1" Primary Colors to create a well-matched
wall (recommended), continue to Step
N
If you prefer maximum brightness rather than a particular color
temperature, set the User 1 white levels to 100 (maximum).
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In the White Uniformity menu, reduce each color light output level to 50.0.
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This decreases the light output from each color 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—a
higher level will
likely interfere
with achieving
brightness
uniformity and is
not recommended.
See Figure 3.42.
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.
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NOTES: 1) At this point, ignore the brightness of individual zones. 2) Always ignore
menu colors.
On each screen, compare the color temperatures in the 8 target zones (4 edges
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and 4 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
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