Christie roadie 25k User Manual page 48

INSTALLATION AND SETUP
Adjust Left/Right
Boresight
2-42
Roadie 25K User's Manual
'
1. Adjust focus at the
far left center edge
of the image
(Figure 2.45). If
possible, reduce
image size for
easier image
analysis.
2. If the image
appears well-
focused on the left
edge but not on the
right, then the boresight currently differs from one side to the other—i.e., the right
side of the image is well-focused either in front of or behind the screen surface
rather than on it. To determine where the right side is focusing:
Hold a piece of white paper approximately parallel to the screen surface at the
right side (and as close to the vertical center as possible), then move closer to
the projector while watching the image on the paper.
• If focus on the paper
improves, this
indicates that the
right side of the
image is focusing in
front of the screen.
See Figure 2.46.
• If focus on the paper
worsens, this
indicates that the
right side of the
image is focusing
behind the screen.
GOAL: If the image comes
into focus on both sides
simultaneously, left/right
boresight is fine—skip to Step 7.
3. Adjust the horizontal boresight bolt
(Figure 2.47) as necessary to direct or
"aim" the lens toward the side of the
image which focused too close to the
lens. When both sides appear equally
blurry, re-focus on the left side of the
screen.
4. Adjust horizontal offset to re-center the
image on the screen.
5. Repeat Steps 4 and 5 until both sides of
the are well-focused.
Figure 2.45. Adjust Focus at Left Edge
Figure 2.46. Example of Poor Left/Right Boresight
Figure 2.47. Adjust
L/R Boresight