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.
Adjusting the image
CP2308-G User Guide
53
020-102863-01 Rev. 1 (05-2018)
Copyright
©
2018 Christie Digital Systems USA, Inc. All rights reserved.
Summary of Contents for CP2308-G
Page 1: ...User Guide 020 102863 01 CP2308 G...
Page 98: ......
