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Overhead
Projector Relamping Guide
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Beseler Century
| There is only one overhead projector
of this model on campus. The relamping procedure is a bit different
from most of the other projectors on campus |

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Relamping Procedure
CAUTION:Before opening the housing and replacing a burned-out
lamp, be sure the lamp has cooled thoroughly. Unplug the power cord
if possible before changing the lamp.
Opening the projector
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Getting into a projector is half the battle,
and on this one, the means is not entirely obvious. Notice
the red arrow on the photo above. That arrow points at the
cover latch, seen here from directly below. To open the projector,
pull the latch towards you, and lift up on the stage glass.
It's really easy once you find the latch.
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Now lift up on the front edge of the stage
glass frame. The top of the projector will hinge open and
latch into position, revealing the innards of the projector.
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Removing the burned-out lamp
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The lamp is carried in a hinged metal frame.
Release the latch and lift up on the black metal frame using
the lifting tab on the left-hand side of the frame. As you
raise the frame, the lamp should be drawn out of the socket.
You can then remove the burned out lamp from the metal frame.
Carefully note the orientation of the contact pins, as one
is wider than the other.
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Installing the new lamp
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Important: For
optimum lamp life and performance, do not touch the quartz
(glass) bulb of the lamp. The oils in your skin will attack
the quartz and cause the lamp to fail prematurely.
Remove the lamp from the sealed plastic bag,
and, being careful to only handle the lamp by its ceramic
base, clip it into the tabs on the metal frame. Then swing
the metal frame down and latch it into position. As you do
this, the lamp should snap into the socket. If it falls out
of the frame, or you cannot close the frame, it means the
lamp is not properly seated or not properly positioned in
the frame. Open the frame and try again.
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Closing the projector
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Close the projector by pulling forward on
the support arm and lowering the stage glass assembly as shown.
Make sure the projector is plugged into an electrical outlet,
and test it by turning it on. It should light up. Your work
here is finished!
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