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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 (A) and a hex driver in the first cap screw (B).
4. Equally turn the set screw (A) and cap screw (B) in opposite directions until the black corner is
removed.
5. If the black corner remains, insert a hex driver in the second set screw (C) and a hex driver in
the second cap screw (D).
6. Equally turn the set screw (C) and cap screw (D) in opposite directions until the black corner is
removed.
7. Replace the top cover.
CP2308-G Installation and Setup Guide
020-102866-01 Rev. 1 (05-2018)
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2018 Christie Digital Systems USA, Inc. All rights reserved.
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Adjusting the image
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