Zeiss Axio Scope.A1, Operating Manual, Page: 111 / 123

MAINTENANCE, CHANGING OF FUSES AND SERVICE
Axio Scope.A1 Trouble Shooting Carl Zeiss
M60-2-0007 e 05/08
111
5.3 Trouble Shooting
Problem Cause Fault clearance
Push rod/gear knob vis/fot on the
photo tube is not in correct functional
position (interposition). Bring the push rod/gear knob vis/fot
on the photo tube in the correct
functional position (end position). Shading or brightness irregularities
in the field of view of the
microscope; the field of view is not
fully visible.
Nosepiece with objective is not fully
engaged in its locking position. Engage the nosepiece with the
objective in its locking position.
Condenser is not adjusted correctly. Adjust the condenser correctly
(adjustment, centering),
see p.
728H728H
69 ff.
Aperture diaphragm is not adjusted
correctly. Adjust the aperture diaphragm
correctly (centering, opening),
see p.
729H729H
69 ff.
Field diaphragm is not adjusted
correctly. Adjust the field diaphragm correctly
(centering, opening),
see p.
730H730H
69 ff.
Filter is not correctly inserted in its
compartment. Insert the filter correctly.
Low resolution and poor contrast. Opening of the aperture diaphragm is
not adjusted correctly.
Adjust the opening of the aperture
diaphragm according to the 2/3-rule
and the texture of the sample you are
using,
see p.
731H731H
69 ff.
Condenser is not focused correctly
and front lens is not connected
correctly. Focus the condenser and turn the
front lens correctly on or off,
see p.
732H732H
69 ff.
Wrong thickness of the frame glass
when using a transmitted light
objective with a frame glass thickness
of 0.17 mm. Use standardized frame glasses with a
thickness of 0.17 mm.
Object carrier is not inserted correctly. Turn the object carrier over, the
sample side shows up.
No immersion oil or an unspecified
immersion oil is used with immersion
objectives. Use immersion oil 518 N or 518 F by
Carl Zeiss
Air bubbles in the immersion oil. Repeat the oiling procedure with fresh
oil.
Immersion oil on the front lens of a
dry objective. Clean the lens
Correction setting is not set to the
proper thickness of the frame glass. Adjust the correction setting to the
correct thickness of the frame glass
Dirt or dust on the optical surfaces of
objectives, eyepieces, condensers or
filters. Clean the soiled optical component