Stewart Filmscreen Corp AB Electriscree, Руководство пользователя

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Refer to the following guidelines if you encounter a difficulty in the operation
of your Stewart Filmscreen. 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 Stewart
Filmscreen Corporation.
AB Electriscreen: Owner’s Manual 15
T
ROUBLESHOOTING
Problem description Probable cause Action to take
Screen won't operate. No 120V power available.
Outboard switching problem. Check to see if the circuit breaker has
switched off. Reset if needed.
Check outboard switching apparatus.
Check voltage availability. Contact an
electrician.
Screen won't roll up or down
(even though power is
available).
Bad connection at switch.
Polarity of STI line may be bad. Have an electrician or qualified service
person check the connection as
follows:
· If you have a low voltage control
unit, check switch-line connections.
· If you have a screen trigger
interface , check line connections,
or the mini-plugs at the screen
input or projector output. Check
12V DC line for correct polarity.
Contacts may be sticking—tap
relay to free contacts.
Screen roller chatters when
power is activated.
Can be caused by voltage drop,
bad connections, or a defective
switch.
Have an electrician or qualified service
person check all hook-ups including all
outboard wiring.
Unit hums in up mode.
(Screen has already
retracted.)
The screen batten is retracting too
far into the case. Failure to
correct can damage motor and
screen. Do not use the unit until
this problem is resolved.
Have a qualified service person adjust
the yellow UP limit switch. Turn the
adjusting screw clockwise.
Screen drops when up
direction is activated
(grinding noise occurs).
Drop in voltage. Screen motor requires full voltage.
Have an electrician or qualified service
person check available voltage.
Screen continues past
bottom stop position.
White limit switch is out of
adjustment.
Readjust the white DOWN limit switch.
See pp. 12-13 of this manual.
Batten retracts too far into
case.
Yellow limit switch out of
adjustment. Failure to correct
can damage motor and screen.
Do not use the unit until this
problem is resolved.
Have a qualified service person
readjust the yellow UP limit switch. See
pp. 12-13 of this manual.
Dirt, finger prints, marks, etc.
on screen surface.
Improper handling of screen. Brush off or use a mild detergent
solution with clean rag or cotton swab.
Indentations appear on
screen surface.
Debris or particles adhering to
screen due to static cling.
Check back of screen; gently brush
debris away by hand.