3
SCREEN ADJUSTMENT FOR 120V SCREENS
CAUTION! THE MASK SHOULD NOT BE FIELD ADjUSTED FOR MORE OR LESS DROP.
Surface travel is stopped automatically in the fully opened and closed positions by limit switches that are properly ad-
justed at Da-Lite. Should it be necessary to adjust for more or less drop of picture, proceed in the following manner:
NOTE:
use a screw driver or allen wrench to make adjustments.
MORE SCREEN DROP
1. Remove access panel (Fig. 1).
2. Place operating switch in
“down”
position.
3. When the screen stops, turn the
“down”
limit knob (Fig. 2) one-quarter turn counterclockwise. Test by
raising picture surface approximately two feet, then lower again. Repeat until desired picture surface position is
attained.
NOTE: Must leave 1-1/2 wraps of fabric on roller!
4. Replace access panel.
LESS SCREEN DROP
1. Remove access panel. (Fig. 1).
2. Raise picture surface approximately two feet above desired level.
3. Place operating switch in
“off”
position.
4. Turn the
“down”
limit knob (Fig. 2) one-quarter turn clockwise. Test by raising picture surface approximately two
feet, then lower again. Repeat until desired picture surface position is attained.
5. Replace access panel.
DUAL MASkINg ELECTROL
®
INSTRUCTIONS
DOWN
BLACK
UP
DOWN
COMMON
WHITE
COMMON
GROUND
GREEN
GROUND
MASK
SCREEN
UP
DOWN
MaSk MOTOR
4 – WIRE
MASK MOTOR
UP
OFF
DOWN
4 – WIRE
SCREEN MOTOR
SCReeN MOTOR
120 V. aC 60 CyCLe
BLACK (HOT)
BLACK
RED
WHITE
WHITE (COMMON)
GREEN
GROUND WIRE
RED
UP
120V WIRING DIAGRAM
