CARE, FUSE REPLACEMENT AND SERVICE
Carl Zeiss
Troubleshooting
Axio Lab.A1
110 430037-7144-001
04/2013
Problem Cause
Troubleshooting
Asymmetric image sharpness, e.g.
one side is sharp, one is side
blurred.
Condenser is not correctly adjusted.
Adjust the condenser correctly;
see p. 72 ff.
Nosepiece is not engaged in its
locking position.
Engage the nosepiece in its locking
position (click-stop).
The specimen has not been fixated on
the mechanical stage.
Insert and fixate correctly in the
specimen holder.
Distinct focus differences when
changing the objective.
Focusable eyepieces are not adjusted
correctly or a Pol eyepiece was used in
a binocular tube without upright
reticle.
Adjust the focusable eyepieces
according to the vision defect,
see p. 70.
Objective is not screwed in all the
way.
Screw the objective in to the stop.
Tube lens is not mounted, or mounted
unnecessarily.
Mount the tube lens or remove it, as
appropriate.
Left and the right field of view
cannot be brought together in one
image.
Eyepiece distance (interpupillary
distance) is not adjusted correctly.
Adjust the interpupillary distance
correctly;
see p. 70.
Focusable eyepieces are not adjusted
correctly.
Adjust the focusable eyepieces
according to the vision defect,
see p. 70.
Eye fatigue when using the
microscope.
Eyepiece distance (interpupillary
distance) is not adjusted correctly.
Adjust the interpupillary distance
correctly;
see p. 70.
Focusable eyepieces are not adjusted
correctly.
Adjust the focusable eyepieces
according to the vision defect,
see p. 70.
Image brightness is unacceptable.
Adjust the lamp voltage or insert a
conversion filter.
Binocular
tube
is
optically/mechanically misaligned.
Call in service personnel for
check/repair.
Dirt or dust in the field of view.
The condenser has not been correctly
focused and front lens 0.9 not
swiveled in/out correctly.
Focus the condenser and swivel front
lens correctly in or out;
see p. 72ff.
Opening of the aperture diaphragm is
too small.
Set the aperture diaphragm as per
2/3 rule or the specimen features;
see p. 72 ff.
Dirt or dust on optical surfaces of
objectives, eyepieces, condensers,
filters or specimens.
Clean the optical surfaces of the
soiled components,
see p. 107.
