Brightness Uniformity - Submenu - Christie M Series User Manual

Section 3: Operation
10. Repeat Steps 6 to 9 to adjust all 4 corners until they match the screen.
11. Select OK to apply the new corner positions to the image.
NOTE: A message will be displayed for approximately 10 seconds indicating that the projector is
"Processing request".
Under certain combinations of extreme keystone co-ordinates and specific signal frequency, a keystoned image
may result that is outside the bandwidth limitations of the projector. When attempting to apply the keystone
settings, a message will pop up on the OSD, indicating that the bandwidth has been exceeded and the keystone
cannot be applied. The cursor co-ordinates for keystone adjustment will remain at the failed keystone position.
This will allow the user to make minor changes and attempt to reapply the corner settings. Either the co-
ordinates must be adjusted, or the free run frequency must be changed to fall within the allowed bandwidth.
The F
UNC ELP
+H
Blending and Black Level Blending features. This is helpful when, in some extreme keystone configurations,
some image corruption may appear and/or the menus may not be readable. Although F
these features, it will not overwrite their settings. If keystone is simply enabled again, the same image
corruption may occur. After pressing F
which will set all keystone co-ordinates to zero.

3.7.14Brightness Uniformity - Submenu

Provides further refinement of displays already matched for their primary colors and overall light output. Use
Brightness Uniformity to create an exceptionally smooth image in which no area appears brighter than
another. In the Brightness Uniformity menu, enable the Brightness Uniformity Enable check box to access a
multitude of adjustments for light output control in specific areas throughout the image. Your settings apply as
long as the Brightness Uniformity Enable check box is enabled. While making adjustments, enable the
Coarse Adjustment check box to apply Brightness Uniformity settings with a large granularity. Coarse
Adjustment helps identify brightness changes and accelerates projector response time while adjusting settings.
To disable the Brightness Uniformity function, delete the Brightness Uniformity Enable check mark.
What Is Brightness Uniformity?
When used to refine screens already matched for their primary colors, see
Screens and overall light output, proper adjustment of Brightness Uniformity can create an exceptionally
smooth screen in which:
• No area of the screen appears more red, green or blue than another
• No area of the screen appears brighter than another
• Color and light output from one screen closely matches adjacent screens
Although the Brightness Uniformity control can be used for a stand-alone projector, it is particularly useful
for setting up and maintaining tiled images that form a cohesive display wall in which the color "cast" and light
output appear uniform throughout each image as well as throughout the entire wall. The procedure provided
here assumes a multiple-screen application.
3-42
key combination will immediately disable the Keystone, Brightness Uniformity, Edge
UNC
, it is recommend to immediately "Reset Keystone Settings",
ELP
+H
UNC ELP
+H
3.11.1 Match Colors in Multiple
M Series User Manual
020-100009-08 Rev. 1 (05-2013)
disables