Please read and understand the following information. Improperly adjusted motor limit switches can result in irreparable damage to the projection screen or motor and will void your warranty.

REDUCING OR INCREASING THE SCREEN’S DEPLOYED (DOWN) STOPPING POSITION

This is the number one adjustment that users may need to make. A projection screen may require that the deployed stopping position “white” switch be readjusted from the factory setting.

This adjustment will be made using the “white” limit switch. It is important to remember that you cannot reduce the screen’s deployment setting when the screen is currently stopped at its full “down” setting. You must use the control switch to raise the screen up a foot or so before attempting a motor limit switch adjustment. If the screen is operated by a screen trigger, you must reduce this “white” limit switch when the screen is stopped in its fully retracted, “up” position. Turn the “white” motor limit switch clockwise to reduce the screen's fully deployed setting. The screen's newly adjusted amount can be measured by how much top black masking is exposed.  

Turning the motor limit switch counterclockwise will increase or extend the screen’s deployed stopping position. Switches are sensitive. Go slowly and do half turns at all times with the 5/32” hex driver to prevent damage to the motor and to the screen. Do not extend the screen so far that the aluminum roller tube becomes exposed. There must be at least one full wrap of the screen left on the roller tube when the screen is resting at its final deployed setting. If you turn this limit switch too much (clockwise) and the screen is now stopping short of where you want it, simply turn it in the opposite direction (counterclockwise) and the screen will automatically drop in increments as you rotate the switch.

REDUCING OR INCREASING THE SCREEN’S RETRACTED (UP) STOPPING POSITION

CAUTION: Making adjustments to the “yellow” switch can inadvertently damage the screen or the motor if the fully retracted stopping position is set too high into the housing. This will cause the screen’s batten bar to impact the screen roll and may cause optical damage to the screen. Improper adjustment can also cause the batten to jam into the housing which obstructs it from deploying when the “down” command is sent. Left in this position, the motor will fail due to overrun. Only qualified, experienced technicians should attempt to make adjustments to the up “yellow” limit switch.

In the fully “up” retracted stopping position, the screen’s batten bar must hang freely underneath the screen roller tube. The batten bar cannot contact or press against the projection screen roll. Make sure to check and correctly adjust the yellow or “up” limit switch to avoid screen damage from a compacted batten bar. Switches are sensitive. Go slowly and do half turns at all times with the 5/32” hex driver to prevent damage to the motor and to the screen.

Counterclockwise adjustments of this switch will raise the batten bar and clockwise adjustments will lower the batten’s top setting. Lowering the batten’s top stopping position is valuable when trying to align the screen’s batten with a ceiling slot.