36
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 your local Olympus representative for assistance.
Problem
Cause
Remedy
Page
1. Optical System
a) The bulb does not light.
The power cord of the BX-UCB is un-
plugged.
Plug the power cord into a power out-
let.
–
The main switch of the BX-UCB is not
ON.
Set the main switch to “
I
” (ON).
–
The Lamp ON/OFF switch on the BX61WI
is not ON.
Set the Lamp ON/OFF switch to ON.
–
The bulb is burnt out.
Replace the bulb.
48
The transmitted/ reflected light switch is
set to reflected light ( ).
Set the switch so that the LED indicat-
ing transmitted light ( ) lights.
14
b) The bulb lights but the field of view
is dark.
The aperture or field iris diaphragm is
opened in sufficiently.
Open the aperture and field iris dia-
phragms.
21/22
The condenser is in too low a position.
Adjust the condenser height.
21
The light path selector knob of is set to
position .
Set the light path selector knob to po-
sition or .
20
c) Field of view is obscured or not
evenly illuminated.
The light path selector knob is in an in-
termediate position.
Set the light path selector knob to a
click position according to the pur-
pose..
20
The revolving nosepiece is not in a click
position.
Set it in a click position.
18
The condenser is installed incorrectly.
Re-install it.
47
The revolving nosepiece is installed in-
correctly.
Secure it by pushing in the sliding
dovetail all the way until the stopper.
45
The filter turret or filter slider is incorrectly
engaged in the light path.
Engage them correctly in the light path.
15
The frost insertion/removal lever is set to
an intermediate position or OUT.
Engage the frost filter correctly in the
light path.
16
An objective outside the illumination
range of the condenser is in use.
Use an appropriate condenser for the
purpose.
9
The condenser is not centered.
Adjust the centering.
21
The field iris diaphragm is closed too
much.
Open it until it circumscribes the field
of view.
21
The lamp bulb is not installed correctly.
Push the halogen bulb terminals all
the way into stop position.
48
d) Dirt or dust is visible in the field of
view.
Dirt/dust on eyepieces.
Dirt/dust on condenser top lens.
Clean thoroughly.
3
Dirt/dust on specimen.
