![background image](http://html1.mh-extra.com/html/zeiss/axioscope-7/axioscope-7_operating-manual_3368608129.webp)
CARE, FUSE REPLACEMENT AND SERVICE
Axioscope 5/7/Vario
Troubleshooting
ZEISS
03/2018
430035-7344-001
129
Problem
Cause
Solution
Parfocal performance not good on
Axioscope 7
The focal plane was adjusted using
the low-magnification nosepiece
which has a larger depth of focus
than the high-magnification
nosepiece.
Determine the focal plane using the
high- magnification nosepiece.
There is a backlash of Z-axis drive.
Adjust the focal plane from the same
direction for all the nosepieces.
No light in eyepiece
The system is in ECO mode.
Turn the Intensity/LM knob clockwise
to wake up the system.
The light intensity is too low.
Turn the Intensity/LM knob clockwise
to increase the light.
The light was turned off by another
pressing of the respective RL/TL
button.
Press the RL or TL button according to
the corresponding indicator in green
color.
LED connector is loose (when using
built-in LED10 illumination).
Unmount the LED10 lamp case from
the microscope stand, unplug and re-
insert the connector to the socket.
Check again.
The reflector module is incorrectly
installed or absent.
Check the reflect turret and make
sure the correct reflector is in use.
The field diaphragm is closed.
Check and, if necessary, open the
field diaphragm.
XY stage stops at wrong position
after initialization on Axioscope 7
The XY stage initialization failed.
Restart the microscope, if the issue
still exists please contact ZEISS Service.
Cannot focus on the sample under
high- magnification nosepiece
with Axioscope 7
The Z-axis resolution was not
configured with the magnification of
nosepiece.
Configure the system with correct
nosepiece information with MTB
Configuration.
Asymmetric image sharpness, e.g.
one side is sharp, one is side
blurred.
Condenser is not adjusted properly.
Re-adjust the condenser,
see p. 87 ff.
Nosepiece is not engaged in its
locking position.
Engage the nosepiece in its locking
position (click-diaphragm).
Sample is not fixed on the mechanical
stage.
Insert and fix the sample correctly in
the specimen holder.
Distinct focus differences when
changing the objective.
Focusable eyepieces are not adjusted
correctly.
Adjust the focusable eyepieces
according to the user’s vision defect,
see p. 85.
Objective is not screwed in all the
way.
Screw the objective in to the stop.
Tube lens is not mounted, or it is
mounted unnecessarily.
Mount the tube lens or remove it,
according to the situation.