Stewart Filmscreen Corp B - Manual (Page 19)

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.
Luxus A/SR-1 Electriscreen: Owner’s Manual 17
T
ROUBLESHOOTING
Problem description Probable cause Action to take
Screen won't operate. No 120V power available. Check to see if the circuit breaker has switched
off. Reset if needed.
Check voltage availability. Contact an
electrician.
Screen won't roll up or
down (even though power
is available). Bad connection at switch. 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.
·
If you have a screen trigger interface, check
line connections, or the mini-plugs at the
screen input or projector output. 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. Turn the
adjusting screw clockwise.
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. Turn the adjusting screw
clockwise.
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.