Troubleshooting Guide - Olympus BX51 Instructions Manual

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 your local Olympus representative for assistance.
Problem
1. Optical System
a) Bulb does not light.
b) Bulb operates, but field of view re-
mains dark.
c) Field of view is obscured or not
evenly illuminated.
d) Dirt or dust is visible in the field of
view.
e) Visibility is poor.
· Image is not poor.
· Contrast is poor.
· Details are indistinct.
· Image glares.
Cause
Bulb is burned out.
Power cord is unplugged.
Transmitted/reflected light switch is set
to (reflected light). (TRF models only)
Aperture and field iris diaphragms are not
opened wide enough.
Condenser is lowered too much.
Light path selector knob is set to the
position.
Light path selector knob is in an inter-
mediate position.
Revolving nosepiece is not correctly en-
gaged.
Condenser is not attached properly.
Revolving nosepiece is not attached
properly.
An objective that falls outside of the
condenser's illumination range is used.
Condenser is not properly centered.
Field iris diaphragm is stopped down too
far.
Bulb is not mounted correctly.
Dirt/dust on the eyepiece.
Dirt or the to surface of the condenser.
Dirt/dust on the specimen.
A non-UIS2/UIS objective is used.
Condenser is lowered too far.
Aperture iris diaphragm is stopped down
too far.
Revolving nosepiece is not mounted
properly.
Correction collar on correction collar
equipped objective is not properly ad-
justed.
Front lens of objective is dirty.
Immersion oil is not being used with an
oil immersion objective.
Remedy
Replace bulb.
Plug power cord into the power outlet.
Set the switch to (transmitted light
illumination).
Adjust them to proper sizes.
Adjust the condenser height position.
Move the knob to the or
tion.
Set the knob according to the obser-
vation method.
Make sure that the revolving nosepiece
clicks properly into place.
Re-attach it.
Push the side dovetail all the way until
it is stopped.
Use a condenser to match the pur-
pose.
Center the condenser.
Open the field iris diaphragm until it
circumscribes the field.
Push the pins of halogen bulb all the
way until the stop position.
Clean thoroughly.
Use only UIS2/UIS series objectives
with this microscope.
Adjust the condenser height position.
Open aperture iris diaphragm.
Push the slide dovetail all the way until
it is stopped.
While focusing, turn the correction
collar to find the best position.
Clean objective.
Use immersion oil.
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