Convergence adjustment knobs on xenon lamp projectors
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.
If the colors at the corners of the screen require further correction, see Correcting color
convergence using ECC (on page 75).
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:
a) Install movable flat black panels or curtains along the top edge of the screen.
b) Raise the curtain for flat images or lower the curtain for scope images.
Adjusting the image
C User Guide–CP4415-RGB, CP4420-RGB, CP4435-RGB, CP4440-RGB, CP4450-RGB, CP2420-Xe, CP4420-Xe
89
020-103073-06 Rev. 1 (03-2022)
Copyright
©
2022 Christie Digital Systems USA, Inc. All rights reserved.
Summary of Contents for CineLife+
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