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Troubleshooting Guide
PROBLEM CAUSE CORRECTION
Projector does not operate
No illumination on screen with
slide in projector gate
Slide not in proper focus on
screen
Uneven edge-to-edge focus
Autofocus motor runs
continuously
Slide fails to drop into projection
position
Uneven illumination on screen
Projector won’t cycle to next slide
Program does not start with the
correct slide
No power to projector
Power switch on Off or Fan
Lamp burned out
Lamp not sealed in socket
Slide itself not sharp
First slide in tray not properly
focused
Slide in different type of mount
from others
Projection lens installed improperly
Slide itself is not sharp
Curved-field lens used with glass,
plastic, or non-embossed mounts
Curved field lens used for rear
projection
Multi-aperture slides or matte-
surface write-on slides in tray
Tray base plate not properly
indexed
Tray not properly positioned on
projector
Slide mount warped or frayed at
corners
Projector not level or tilted too high
Projection lamp not fully seated
Condenser lens not installed or not
positioned properly in mount
Slide mount not seated properly in
projector gate
Tray not properly positioned
Slide or foreign object stuck in gate
Tray number is not aligned with the
raised index mark.
Plug power cord into suitable
electrical outlet. Set power switch
to LAMP.
Set switch to LAMP.
Install new lamp or lamp module.
Check lamp.
Examine slide for proper focus.
Focus center of first slide manually.
Focus manually.
Be sure the lens gear teeth on the
lens barrel line up with the notch on
the projector.
Examine slide.
Try a flat-field lens.
Use a flat-field lens.
Turn off autofocus.
Rotate the tray base plate until it
locks into position.
Reposition tray on projector.
Straighten mount or remount slide.
Set projector on a stand equal with
center of screen.
Check lamp.
Check condenser lens.
Check slide position and slide-
mount condition.
Reposition tray.
Remove foreign object from gate.
Reposition tray.