Troubleshooting Guide - Welch Allyn LS200 Manuel De L'utilisateur

TROUBLESHOOTING GUIDE

TROUBLE
When switch
is activated
the light does
not turn on.
There has
been a
change in
spot
quality or a
decrease in
light intensity.
It's difficult to
move the lumi-
naire, the joints
are stiff.
Connection at
top of arm and
luminaire
At arm joint
Joint at bottom
of arm
POSSIBLE CAUSE(S)
Power cord is loose.
A fuse is blown.
No power at wall outlet.
Power cord is damaged.
Lamp is blown.
Lamp is not inserted
in socket properly.
Bezel on front of luminaire
was not aligned properly.
Dirt or dust on bezel or on the
glass filters behind the bezel.
Set-screw at top of arm
is too tight.
Arm knob is too tight.
Set-screw at bottom of
arm is too tight.
CORRECTIVE ACTION
Check connection at wall
outlet and at power supply.
Check fuse. Glass tube will be
blackened if a fuse is blown.
Replace if blown (according to
instructions starting on page 11).
Try another outlet.
Order replacement cord from
Welch Allyn.
Replace lamp (according to
instructions starting on page 9).
Check lamps to ensure they
were properly installed
(according to instructions
starting on page 9).
Make certain the clear
"windows" are lined up with
lamps (See instructions starting
on page 9).
Clean if necessary (see
cleaning instructions on
page 12).
Loosen set screw (A)
(see instructions on page 9).
Loosen knob.
Loosen set screw (B)
(see instructions on page 9).
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