28
Problem
Lamp
Cause
Remedy
Page
Dirt or dust is visible in the field
of view.
Common
Dirt/dust on the eyepieces.
Clean thoroughly.
3
Common
Dirt or dust on condenser top
lens.
Common
Dirt/dust on the specimen.
Visibility is poor
· Image is not poor.
· Contrast is poor.
· Details are indistinct.
· Image glares.
Common
A non-UIS/UIS2 objective is
used.
Use only UIS2/UIS series objecti-
ves with this microscope.
32
Common
Condenser height is too low.
Adjust correctly.
24
Common
Aperture iris diaphragm is not
opened enough.
Open aperture iris diaphragm.
12
Common
Revolving nosepiece is not at-
tached properly.
Push the slide dovetail all the way
until it is stopped.
35
Common
Correction collar on correction
collar-equipped objective is not
properly adjusted.
While focusing, turn the correction
collar to find the best position.
25
Common
Front lens of objective is dirty.
Clean objective.
3
Common
Immersion oil is not being used
with an oil immersion objective.
Use immersion oil.
25
Common
Immersion oil contains bubbles.
Remove the bubbles.
25
Common
Recommended immersion oil is
not used.
Use an Olympus-designated
immersion oil.
25
Common
Dirt/dust on specimen.
Clean it.
3
Common
Dirt/dust on condenser top lens.
One side of image is blurred.
Common
Objective is not correctly engaged
in light path.
Make sure that revolving nosepiece
clicks into place correctly.
12
Common
Stage is not correctly mounted.
Re-attach it.
18
Common
Revolving nosepiece is not at-
tached properly.
Push the slide dovetail all the way
until it is stopped.
35
Common
Specimen is mounted upside
down.
Mount specimen correctly.
18
Image appears to waver.
Common
Revolving nosepiece is not
attached properly.
Push the slide dovetail all the way
until it is stopped.
35
Common
Objective is not correctly engaged
in light path.
Make sure that revolving nosepie-
ce clicks into place correctly.
12
Common
Condenser is not properly
centered.
Center the condenser.
12
Coarse adjustment knob is hard
to turn.
Common
Tension adjustment ring is
tightened excessively.
Loose ring.
16
Common
You are trying to raise stage
without coarse adjustment knob
while pre-focusing lever is kept
locked.
Unlock pre-focusing lever.
17
Image cannot be focused:
· Objective drifts down by itself.
· Fine adjustment knob slips.
Common
Tension adjustment ring is too
loose.
Tighten ring.
16