TROUBLESHOOTING GUIDE
If a problem occurs
during the course of use, please refer to the tables below
before contacting your ACCU-SCOPE distributor.
OPTICAL
Problem Cause Corrective Measure
Darkness at the periphery Revolving nosepiece not in
Revolve the nosepiece to
click-stop position by
or uneven brightness in the click stop position swinging the objective
field of view correctly into the optical path
Dirt or dust on the viewfield Dirt or dust on the lens - Clean the lens
eyepiece, condenser,
objective, collector lens or
specimen
Poor image quality No coverglass attached to Attach a 0.17mm coverglass
the slide
Coverglass is too thick or thin Use a coverglass of the
appropriate thickness
(0.17mm)
Slide may be upside down Turn slide over so the cover-
glass faces up
Immersion oil is on a dry Check the objectives, clean
objective (especially the 40xR) if necessary
No immersion oil used with Use immersion oil
100xR objective
Air bubbles in immersion oil Remove bubbles
Condenser aperture is closed Open or close properly
or open too much
Condenser is positioned too Position the condenser at
low the upper limit
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