Mechanically Adjusting Dmd Convergence - Christie Roadie D4K40-RGB Installation And Setup Manual

5. To make horizontal adjustments, use the orange knob labeled Horizontal.
6. To make vertical adjustments, use the purple knob labeled Vertical.
7. To continue to refine the fold mirror adjustment, repeat the horizontal and vertical
adjustments.
8. Lock the fold mirror screw to lock the adjustment knobs.
9. Once satisfied with the alignment, increase the projector power.

Mechanically adjusting DMD convergence

A convergence problem can be identified when one or more projected colors (red, green, and blue)
appears misaligned when examined with a convergence test pattern.
The three colors should overlap 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.
When adjusting the convergence, you are adjusting red and green to blue.
If you wear glasses with corrective lenses when performing this adjustment, make sure you are viewing
the test pattern on a straight angle through the optical axis of your glasses and not from a tilted or
angled perspective. This avoids a prismatic effect that can appear to shift convergence when viewing at
an angle.
D4K40-RGB Installation and Setup Guide
020-102961-06 Rev. 1 (09-2022)
Copyright © 2022 Christie Digital Systems USA, Inc. All rights reserved.
If printed, please recycle this document after use.
Installation and setup
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