Adjusting Horizontal Boresight - Christie CP2308-G Installation And Setup Manual

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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.

Adjusting horizontal boresight

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.

CP2308-G Installation and Setup Guide

020-102866-01 Rev. 1 (05-2018)

Adjusting the image

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