Offset And Boresight Alignment - Christie CP2000-X User Manual

INSTALLATION & SETUP
2.11 Offset and
Boresight
Alignment
Adjust Offset 
2-28
CENTER THE IMAGE IN
3.
THE LENS: Holding a piece
of paper at the lens surface,
adjust offsets as necessary
until the image is centered
within the lens perimeter. A
full white field works best for
this.
9. RE-CHECK SIDE-TO-SIDE LEVELING:
check projector leveling (see 2.3, Projector Position and Mounting) so that the
top edge of the image is parallel to the top edge of the screen. See right.
NOTES: 1) Projector must be fully
assembled and powered up in its final
location. Install the auxiliary lens, if it
will be used at the site. 2) You will
need a 3/16" allen wrench.
To ensure proper offset for your site
and consistently good focus in all areas
of the screen, a primary lens must be
installed and its lens mount precisely
adjusted in relation to internal optics as
described below. If desired, an
auxiliary lens can then be added to
widen images for "scope" cinema
displays. Once adjusted, boresight
should remain stable until the lens is replaced.
Refer to lens mount components illustrated in Figure 2.33. for these adjustments.
Project an image with the primary lens only. The optional auxiliary lens, if present,
can be mounted but swung aside.
Adjust horizontal and vertical offsets
as necessary (Figure 2.34.) so that the
image is square on screen. Always
adjust offset before boresight.
NOTE: For best performance and
minimum keystoning, particularly in
long throw theatres, make sure to
minimize offsets by "aiming" the
projector lens at the center of the
image. Refer back to Vertical &
Horizontal Position. In short throw theatres with stadium seating, use a combination
of offset and aiming.
Figure 2.32. Level the TOP Edge
With a good test pattern on screen, double-
Figure 2.33. Anatomy of the Lens Mount
Figure 2.34. Offsets
CP2000-X User Manual
020-100031-01 Rev. 1 (03-2009)