
16 Before Installing Your Unifi 45 Projector Retrofit Kit 99-00881-20 A0
3. Adjust the center hex screw at the projector boom’s base to adjust the vertical keystone until the left  
and right side of the image are parallel. Use in combination with thumbscrew 1 shown in the following steps.
NOTE: When you adjust the center hex screw, the top of the image moves up and down slightly  
and the bottom of the image’s width changes.
4. Rotate thumbscrew 1 until the left and right sides of the image are parallel.
NOTE: The image moves up and down when you adjust the thumbscrew. Use in combination with the  
hex adjustment screw at the base of the boom (see step 3).
5. Rotate thumbscrew 2 to adjust the horizontal keystone, until the top and the bottom of the image  
are parallel, and the image appears rectangular.
NOTE: This thumbscrew also rotates and moves the image to the left or right. Use in combination  
with the thumbscrew on the top of the projector (see step 2) to align the image.
Projector Boom
Center Hex 
Screw
Thumbscrew 1
Thumbscrew 2