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CKX41/CKX31
TROUBLESHOOTING GUIDE
Under certain conditions, performance of the unit may be adversely affected by factors other than defects. If problems occur,
please review the following list and take remedial action as needed. If you cannot solve the problem after checking the
entire list, please contact Olympus for assistance.
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1. Optical System
Trouble
Cause
Remedy
Page
a) Although the illumination is on, the
field of view is dark.
The socket pin is not connected to the
illumination column.
Connect it securely.
The bulb is burned out.
Replace it with a new one.
The light intensity control is set too low.
Set it to the appropriate position.
Too many filters are stacked.
Reduce them to the minimum required
number.
The mounted bulb is not the one desig-
nated.
Use the designated 6 V, 30 W halogen
bulb.
b) The edge of the field of view is ob-
scured or not evenly illuminated.
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The revolving nosepiece is not correctly
engaged.
Make sure that the revolving nosepiece
clicks properly into place.
The filter is stopped halfway.
Push it in all the way.
The phase slider is not engaged properly.
Move the slider until it clicks into place.
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c) Dirt or dust is visible in the field of
view.
Dirt/dust on the specimen.
Replace it with a clean specimen.
Dirt/dust on the eyepieces.
Clean them thoroughly.
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d) The image glares.
The aperture iris diaphragm is stopped
down too far.
Open it.
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e) Visibility is poor.
· Image is not sharp.
· Contrast is poor.
· Details are indistinct.
· Phase contrast effect cannot be ob-
tained.
The objective is not correctly engaged in
the light path.
Turn the revolving nosepiece until it
clicks properly into place.
The aperture iris diaphragm is opened
or stopped down too far in brightfield ob-
servation.
Adjust the aperture properly.
Correction collar on correction collar
equipped objective is not properly adjusted.
While focusing, turn the correction
collar to find the best position.
A lens (condenser, objective, eyepiece or
culture vessel) is dirty.
Clean it thoroughly.
The bottom of the culture vessel exceeds
2.5 mm in phase contrast observation.
Use a culture vessel with bottom thick-
ness of no more than 2.5 mm.
You are using a brightfield objective.
Use a phase contrast objective.
The light annulus of the condenser does not
match the phase annulus of the objective.
Adjust the light annulus so that it matches
the phase annulus of the objective.
The light annulus and phase annulus are
not centered.
When using the IX2-SL, center them
correctly.
The objective in use is not compatible
with phase contrast observation.
Use an objective applicable to phase
contrast observation.
When the edge of the culture vessel is
viewed, the phase annulus and light an-
nulus deviate from one another.
Move the vessel until phase contrast
effect is achieved. Also remove the
slider and set the aperture iris dia-
phragm lever to “ ”.
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