Aligning The Image With Lens Zoom And Focus - Christie Roadie D4K40-RGB Installation And Setup Manual

6. Use the Convergence test pattern to assist with adjusting the horizontal and vertical lines.
Horizontal adjustments are controlled by adjusting knob 3.
Vertical convergence and rotation are controlled by adjusting knobs 1 and 2. Christie
recommends rotating a single knob a maximum of a quarter rotation before adjusting the
second knob a quarter rotation. For example, if using one hand, turn the left knob a quarter
rotation and then the right knob a quarter rotation, and so on. Adjusting a single knob for
vertical or rotational adjustment to an extreme before adjusting the second knob may result in
the convergence mechanism binding.
For the best stability, Christie recommends setting convergence while rotating the knobs in a
clockwise direction. This may require first adjusting convergence by turning the knobs counter-
clockwise and finalizing the convergence with a clockwise approach. This applies to all knobs.
7. When complete, push in all the convergence adjustment knobs to disengage them.

Aligning the image with lens zoom and focus

The lens zoom and focus adjustment allows the projected image to be focused and shifted to align
with the screen.
1. Display an image or test pattern that can be used to analyze image focus and geometry.
2. Select ZOOM.
3. Use the up and down arrows to zoom in or out of the image.
4. To exit, select Back.
5. Select FOCUS.
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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