Adjust Top And Bottom Boresight - Christie CP4220 Setup Manual

Adjust the Image
4. Continue retracting the lens.
a. If the right side of the image comes into
focus before the lens is completely retracted,
adjust the horizontal boresight bolt to bal-
ance the left and right edges.
b. If the right side of the image fails to come
into focus, adjust the horizontal boresight
bolt.
5. When both sides appear equally blurry, adjust the
horizontal or vertical offset to re-center the
image.
6. Repeat steps 1 - 5 until both sides of the image
are focused.
7. Tighten the horizontal hold screw to maintain
your adjustments.
8. Check the boresight again.
4.7

Adjust Top and Bottom Boresight

1. Focus the image at the top edge of the screen.
2. Loosen the vertical hold screw.
3. Extend the lens focus completely.
4. Adjust the Focus knob to retract the lens. Watch the image at the
top edge of the screen until it comes into focus. If the entire screen
is in focus, proceed to step 8.
5. Continue retracting the lens.
a. If the bottom edge of the image comes into focus before the
lens is completely retracted, adjust the vertical boresight bolt
to direct or aim the lens mount UP towards the top of the
screen to balance out the top/bottom edges.
b. If the top edge of the image is not in focus, adjust the vertical
boresight bolt to direct or aim the lens mount toward the bot-
tom of the screen.
6. When both sides appear equally blurry, adjust the horizontal and/or vertical offset to re-center the image on
the screen.
7. Repeat Steps 2 - 5 until the top and bottom of the screen are both well-focused.
8. Re-focus the center of the image. The goal is for good focus at the center and on all sides.
4-4
Figure 4-3 Aerial View Illustrating
Misaligned Boresight
Vertical
Boresight
Figure 4-4 Vertical Boresight
Vertical
Locking
Bolt
Screw
CP4220 Setup Guide
020-100692-02 Rev. 2 (05-2014)