Runco QUANTUM Q-750D - Manual (Page 60)

Installation
44 Q-750d Series Installation/Operation Manual
PRE
L
IMINAR
Y
Adjusting the Height (Y): With the white field still on-screen, loosen the
Height/Y Adjustment T-Screws on either side of the lens. Then, slowly move the
anamorphic lens into place so that there are no shadows on the top or bottom of the
screen:
When the height is properly set, tighten the Height Adjustment T-Screws to secure the
lens in place.
Adjusting the Pitch (Angle): Next, angle the lens to even out any top-to-bottom
pincushion distortion. To do this, loosen the Pitch Adjustment T-Screws (directly below
the Height/Y Adjustment T-Screws) on either side of the lens to allow it to pivot freely.
Then, adjust the anamorphic lens angle so that the projected image is rectangular:
The anamorphic lens will almost always be angled with respect to the projector; this is
normal.
Once the proper lens angle has been set, firmly tighten the Pitch Adjustment T-Screws to
secure the lens in place.
There may be some pincushion distortion even after the lens is
properly adjusted, especially at shorter throw distances. If this is the
case, Runco recommends that you slightly over-scan the image
into the screen frame area to mask the distortion.
Too High
Too Low
Correct position
Correct Lens Angle
Incorrect Lens Angle
Note