Adjusting Digital Micromirror Device Convergence; Adjusting The Fold Mirror; Calibrating The Color; Masking The Screen Edges - Christie CP2208 User Manual

7. Check the screen each time an adjustment is made. The right-side adjustments affect the top
right and bottom left points on the screen. Once both cross hairs are in focus, lock the set
screw for right boresight.
8. Repeat steps 5 to 7 for the left side.
9. Verify that each corner of the screen is equally in focus.
If this is not the case, repeat vertical boresight.
Adjusting digital micromirror device
convergence
A digital micromirror device (DMD) convergence problem occurs when one or more projected colors
(red, green, blue) appears misaligned when examined with a convergence test pattern.
Normally, the three colors should overlap precisely to form pure white lines throughout the image and
one or more poorly converged individual colors may appear adjacent to some or all of the lines.
Contact your Christie accredited service technician to correct DMD convergence issues.

Adjusting the fold mirror

Learn how to align the fold mirror with the optical system to correct an image with missing or
shadowy corners or edges.
1. Remove the top cover.
2. Display the RGB-12bit-Full Screen White test pattern.
3. Insert a hex driver in the first set screw and a hex driver in the first cap screw.
4. Equally turn the set screw and cap screw in opposite directions until the black corner is
removed.
5. If the black corner remains, insert a hex driver in the second set screw and a hex driver in the
second cap screw.
6. Equally turn the set screw and cap screw in opposite directions until the black corner is
removed.
7. Replace the top cover.

Calibrating the color

Learn how to create Measured Color Gamut Data (MCGD) files to correct on-screen colors.
Using a colorimeter, measure the colors displayed on the screen from the center of the audience
viewing location.

Masking the screen edges

Conceal the unused edges of a screen with top or side masking.
Typically, you install top and side masking to allow a greater range of adjustment.
1. To create top masking:
CP2208 User Guide
020-101916-03 Rev. 1 (12-20120)
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Adjusting the image
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