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MICROSCOPE TROUBLESHOOTING:
PROBLEM
POSSIBLE CAUSE
SOLUTION
Uneven brightness in
field of view
Nosepiece is not clicked into position.
Rotate nosepiece into position.
Stage is not centered over light.
Slide stage into position.
Dust on sample, eyepiece or objective.
Clean slide, eyepiece and objectives.
Specs in field of view
Dirt on lenses.
Clean eyepiece and objectives.
Dirt on slide or cover slip.
Clean slide and cover slip.
Resolution is not good
or image is not sharp
Cover slip is not in place.
Apply cover slip to slide.
Cover slip is too thick.
Use standard 0.17mm cover slip.
Prepared slide is upside down.
Turn slide so cover slip faces up.
Dirt on lenses.
Clean eyepiece and objectives.
Unable to focus at
higher magnifications
Slide is upside down.
Place slide so cover slip faces up.
Cover slip is too thick.
Use standard 0.17mm cover slip.
Objective is not screwed in all the way.
Tighten objective lens in nosepiece.
Light won’t turn on.
Microscope is not plugged in or charged.
Plug microscope in.
Rheostat control is turned down.
Adjust rheostat control.
Power switch is off.
Turn microscope power switch on.
Bulb burned out.
Replace LED bulb.
