99-00964-20 A0 Installing Your UF55 Projector Parts Kit 11
2. Adjust the vertical keystone alignment for the projected image.
a. If the bottom edge of the projected image is smaller than the top edge of the projected image, and the
sides of the projected image slope inward toward the bottom of the projected image, tilt the projector
down or raise the projector’s mounting boom to lower the image. Turn the center hex screw at the base
of the boom counter-clockwise using a 6 mm hex key (not supplied) to raise the boom.
Center Hex Screw
b. If the bottom edge of the projected image is larger than the top edge of the projected image, and the
sides of the projected image slope outwards toward the bottom of the projected image, tilt the projector
up or lower the projector’s mounting boom to raise the image. Turn the center hex screw at the base of
the boom clockwise using a 6 mm hex key (not supplied) to lower the boom and tilt the projector
forward and back.
NOTE: The entire projected image may increase slightly in size during this process, more so at the bottom
of the projected image than at the top.
Projector Boom