9
Refer to the following guidelines if you encounter a difficulty in the operation of your Da-Lite Multi-Mask Imager screen.
Problems related to electrical or motor function may require a qualified service person or electrician.
Should you have a problem that is not addressed here, call the Da-Lite Screen Company.
TROUBLESHOOTING
SYMPTOM
1. Mask won’t operate.
2. Mask won’t roll up or down (even
though power is available.
3. Mask roller chatters when power is
activated.
4. Unit hums in up mode (Mask has
already retracted).
5. Mask drops when up direction is
activated (grinding noise occurs).
6. Mask continues past bottom stop
position.
7. Batten retracts too far into frame.
8. Dirt, fingerprints, marks, etc. on
screen surface.
9. Indentations appear on screen
surface.
10. Horizontal mask jams upon
retraction.
CAUSE
(a)
No 120V/220V power available.
(b) Outboard switching problem.
(a)
Bad connection at switch.
(a)
Can be caused by voltage drop, bad
connections or a defective switch.
(a)
The mask batten is retracting too far
into the case.
Failure to correct can damage motor.
Do not use the unit until this problem
is resolved.
(a)
Drop in voltage.
(a)
White limit switch is out of
adjustment.
(a)
Yellow limit switch out of
adjustment.
Failure to correct can damage motor.
Do not use the unit until this problem
is resolved.
(a)
Improper handling of screen.
(a)
Debris or particles adhering to screen
due to static cling.
(a)
The unit was not level and plumb
when mounted.
SOLUTION
(a)
Check to see if the circuit breaker
has switched off. Reset if needed.
(b) Check outboard switching apparatus.
Check voltage availability
Contact an Electrician.
(a)
Have an electrician or qualified
service person check the connection
as follows:
• If you have a high voltage control
switch, check switch line
connections.
• If you have a low voltage control
unit, check switch line
connections.
(a)
Have an electrician or qualified
service person check all hook-ups
including all outboard wiring.
(a)
Have a qualified service person
adjust the UP limit switch. Turn the
adjusting screw clockwise.
(a)
Mask motor requires full voltage.
Have an electrician or qualified
service person check the available
voltage.
(a)
Readjust the DOWN limit switch.
See pp. 6-7 of this manual.
(a)
Have a qualified service person
adjust the UP limit switch. See pp.
6-7 of this manual.
(a)
Brush off or use a mild detergent
solution with clean rag or cotton
swab.
(a)
Check back of screen; gently brush
debris away by hand.
(a)
Remount the unit making sure that it
is level and plumb.
Summary of Contents for MULTI-MASK IMAGER
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