Troubleshooting Guide - Olympus BX-URA2 Instruction 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) Burner is ON but light cannot be
seen from eyepiece of is dark.
b) Image is low quality, not sharp or
poor in contrast.
c) Field of view is obscured or not
evenly illuminated
d) Field contains dark, spot-like areas. Dirt or dust on burner or on burner side
2. Electrical System
a) Main switch cannot turn system
ON.
b) Main switch can turn system ON
but mercury burner will not light.
c) Mercury burner flickers or is dark.
Cause
Shutter is closed.
ND filter is engaged in light path.
Fluorescence mirror unit is not correctly
engaged in light path.
Aperture and field iris diaphragms are not
fully enlarged.
Fluorescence mirror unit does not match
specimen.
Dirt/dust on objective or filter.
Aperture and field iris diaphragms are not
properly enlarged.
Fluorescence mirror unit does not match
specimen.
Objective is not correctly engaged in light
path.
Fluorescence mirror unit is not correctly
engaged in light path.
Field iris diaphragm is set too small.
ND slider is not stopped at click posi-
tion.
Mercury burner is not centered or focus-
ing is defective.
of collector lens.
Power cord is not connected properly.
Connectors are not connected properly. Connect firmly.
Mercury burner is not attached.
Safety device in lamp housing is active. Set up the lamp socket correctly.
Auto ignition is malfunctioning.
It is soon after ignition.
Burner life has expired.
Burner is deviated from optical axis.
Remedy
Open the shutter.
Remove ND filter as required.
Engage it correctly.
Fully enlarge aperture iris diaphragm
and enlarge field iris diaphragm until
it circumscribes field of view.
Use fluorescence mirror unit match-
ing specimen.
Clean thoroughly.
Fully enlarge aperture iris diaphragm
and enlarge field iris diaphragm until
it circumscribes field of view.
Use fluorescence mirror unit match-
ing specimen.
Make sure that revolving nosepiece
clicks properly into place.
Engage fluorescence mirror unit cor-
rectly in light path.
Fully enlarge field iris diaphragm.
Make sure that ND slider clicks prop-
erly into place.
Center mercury burner or perform fo-
cusing adjustment.
Clean them.
Connect firmly.
Attach mercury burner.
Set main switch of power supply unit
to " " (OFF) then " I " (ON) again. (OFF/
ON can be repeated.)
Leave for 10 minutes or more after ig-
nition.
If hour counter indicates 300 hours
(USH-103OL , HBO103W/2), replace
mercury burner.
Center mercury burner.
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