9
R f r to th following guid lin s if you ncount r a difficulty in th op ration of your Da-Lit Multi-Mask Imag r scr n.
Probl ms r lat d to l ctrical or motor function may r quir a qualifi d s rvic p rson or l ctrician.
Should you hav a probl m that is not addr ss d h r , call th Da-Lit Scr n Company.
TROUBLESHOOTING
SYMPTOM
1. Mask won’t op rat .
2. Mask won’t roll up or down ( v n
though pow r is availabl .
3. Mask roll r chatt rs wh n pow r is
activat d.
4. Unit hums in up mod (Mask has
alr ady r tract d).
5. Mask drops wh n up dir ction is
activat d (grinding nois occurs).
6. Mask continu s past bottom stop
position.
7. Batt n r tracts too far into fram .
8. Dirt, fing rprints, marks, tc. on
scr n surfac .
9. Ind ntations app ar on scr n
surfac .
10. Horizontal mask jams upon
r traction.
CAUSE
(a) No 120V/220V pow r availabl .
(b) Outboard switching probl m.
(a) Bad conn ction at switch.
(a) Can b caus d by voltag drop, bad
conn ctions or a d f ctiv switch.
(a) Th mask batt n is r tracting too far
into th cas .
Failur to corr ct can damag motor.
Do not us th unit until this probl m
is r solv d.
(a) Drop in voltag .
(a) Whit limit switch is out of
adjustm nt.
(a) Y llow limit switch out of
adjustm nt.
Failur to corr ct can damag motor.
Do not us th unit until this probl m
is r solv d.
(a) Improp r handling of scr n.
(a) D bris or particl s adh ring to scr n
du to static cling.
(a) Th unit was not l v l and plumb
wh n mount d.
SOLUTION
(a) Ch ck to s if th circuit br ak r
has switch d off. R s t if n d d.
(b) Ch ck outboard switching apparatus.
Ch ck voltag availability
Contact an El ctrician.
(a) Hav an l ctrician or qualifi d
s rvic p rson ch ck th conn ction
as follows:
• If you hav a high voltag control
switch, ch ck switch lin
conn ctions.
• If you hav a low voltag control
unit, ch ck switch lin
conn ctions.
(a) Hav an l ctrician or qualifi d
s rvic p rson ch ck all hook-ups
including all outboard wiring.
(a) Hav a qualifi d s rvic p rson
adjust th UP limit switch. Turn th
adjusting scr w clockwis .
(a) Mask motor r quir s full voltag .
Hav an l ctrician or qualifi d
s rvic p rson ch ck th availabl
voltag .
(a) R adjust th DOWN limit switch.
S pp. 6-7 of this manual.
(a) Hav a qualifi d s rvic p rson
adjust th UP limit switch. S pp.
6-7 of this manual.
(a) Brush off or us a mild d t rg nt
solution with cl an rag or cotton
swab.
(a) Ch ck back of scr n; g ntly brush
d bris away by hand.
(a) R mount th unit making sur that it
is l v l and plumb.
