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CX31-P
Problem Cause Remedy Page
TROUBLESHOOTING GUIDE
Under certain conditions, performance of the microscope 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.
1. Optical system
a) The field is dark even when the lamp
bulb is on.
The Bertrand’s lens is in the light path. Disengage it from the light path.
The analyzer is set to the cross-Nicol
position.
Disengage the analyzer from the light
path.
b) The field of view is cut off or not
regularly illuminated.
The revolving nosepiece is not set to a
click position.
Set it into a click position.
–
The test plate is inserted midway.
The field iris diaphragm is eccentric. Center it properly.
The field iris diaphragm is stopped
down too much.
Open it to an optimum size.
The objective, eyepieces, condenser
and/or window lens are dirty.
Clean them thoroughly.
c) Dust or stains are visible in obser-
vation field.
The window lens on the base is dirty.
The top lens of the condenser is dirty.
The specimen is dirty.
The eyepieces are dirty.
d) Observation image glares.
The condenser is too low.
Raise it.
The aperture iris diaphragm is stopped
down too much.
Open the aperture.
e) Observation image is poor.
· The image is not sharp.
· The contrast is low.
· Details are solid and unclear.
The objective is not engaged correctly
in the light path.
Set the revolving nosepiece correctly
into a click position.
The objective front lens is dirty. Clean it thoroughly.
Immersion oil is not used with an im-
mersion objective.
Use immersion oil.
Bubbles are mixed in the immersion oil.
Remove the bubbles.
The specified immersion oil is not used.
Use the immersion oil supplied by Olympus.
The specimen is dirty.
Clean them thoroughly.
The eyepieces and/or condenser are dirty.
f ) Part of image is defocused or im-
age looks like it’s flowing.
The objective is not properly engaged
in the light path
Set the revolving nosepiece correctly
into a click position.
The specimen is not set properly on
the stage.
Set the specimen correctly on the stage
and secure using the specimen holder.
g) The cross-Nicol condition cannot
be obtained.
The analyzer is disengaged from the
light path.
Engage it in the light path.
h) The conoscopic image cannot be
observed.
The Bertrand’s lens is disengaged from
the light path.
Engage it in the light path.
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Clean them thoroughly.
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