Christie CP2308-C Installation And Setup Manual page 27

1. Remove the lens surround.
2. Display the DC2K Boresight test pattern.
3. Loosen the set screw (B).
A Cap screw: Adjusts top and bottom boresight
B Set screw: Locks or unlocks the cap screw
4. Turn the vertical cap screw (A) 1/8 of a turn counter-clockwise.
Only adjust vertical boresight 1/8 of a turn or less at one time to maintain optimal lens
performance (factory setup of absolute lens distance to the prism). It is critical that you count
each turn of the cap screws to ensure accurate adjustment.
5. Adjust both left and right horizontal adjusters by half the number of turns, in the opposite
direction of the vertical adjust.
For example, if the vertical adjust cap screw was turned 1/8 of a turn, the left and right
horizontal cap screws should be turned 1/16 of a turn in the opposite direction.
6. Check the screen each time an adjustment is made. If the quality of the projected image has
degraded, turn the vertical adjust cap screw 1/8 of turn clockwise. Ensure the left and right
horizontal adjusters are adjusted equally in the opposite direction to correct axial focus. The
1/8 of a turn is a suggestion only and can be less if needed; however, it should never be
exceeded. Always compensate both left and right horizontal adjustments according to the
vertical adjustment.
7. Check the image after each adjustment. Continue to make adjustments until both top and
bottom are equally sharp. To make sure the lens is in the same relative position, adjust the left
and right horizontal adjusters in the opposite direction at the same time.
8. When the top and bottom of the image are equally in focus lock the set screw to hold it in
position. Recheck the image.
9. If additional adjustment is required, try adjusting horizontal boresight.
10. Replace the lens surround.
CP2308-C Installation and Setup Manual
020-102492-01 Rev. 1 (01-2017)
Copyright 2017 Christie Digital Systems USA Inc. All rights reserved.
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Adjusting the image
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