Electronically Adjusting Convergence - Christie CineLife+ CP4415-RGB Service Manual

7. 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.
8. When complete, push in all the convergence adjustment knobs to disengage them.
If the colors at the corners of the screen require further correction, see Electronically adjusting
convergence (on page 25).

Electronically adjusting convergence

Use the electronic convergence feature in the menu to adjust convergence. Only perform electronic
convergence when satisfied with the position of the image on the screen.
Adjusting the convergence is accomplished by aligning a red, green and blue sprite, which is displayed
at the four corners of the displayed image. For electronic convergence all three colors can be adjusted.
CineLife+ 4K-RGB Service Guide–CP4415-RGB, CP4420-RGB, CP4425-RGB, CP4435-RGB
020-103257-02 Rev. 1 (08-2022)
Copyright © 2022 Christie Digital Systems USA, Inc. All rights reserved.
If printed, please recycle this document after use.
Service setups
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