Christie CP2306-RGBe User Manual page 56

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.
Perform a horizontal boresight adjustment when the image cannot be focused uniformly on the screen by
aligning the projector to the screen and focusing the lens.
Caution! If not avoided, the following could result in minor or moderate injury.
• This procedure must be performed by Christie qualified technicians.
Typically, horizontal boresight does not require adjustment. It should only be adjusted if a large horizontal
angular offset to the screen is required.
When adjusting boresight, you must maintain the boresight distance from the lens to the prism plane set by
Christie. For example, when you move the top screw outward, turn the bottom two boresight screws to
maintain the overall distance.
CP2306-RGBe, CP2308-RGBe, CP2310-RGBe User Manual
020-001835-02 Rev. 1 (05-2021)
Copyright 2021 Christie Digital Systems USA, Inc. All rights reserved.
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Adjusting the image
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