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8 8
TROUBLESHOOTING GUIDE
Under certain conditions, performance of this 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.
Trouble
1. Optical System
a. Bulb is lit, but field of view
remains dark.
b. Vignetting or uneven field
of view.
c. The conoscopic image is
not visible.
d. Extinction is not obtainable. The analyzer is not in the light path. Engage the analyzer
Cause
Bertrand lens is engaged.
In the extinction condition.
Test plate is stopped at an
intermediate position.
During orthoscopic observation,
the condenser top lens is placed
in the light path or stopped at
intermediate position.
Condenser top lens is not placed in
the light path.
Bertrand lens is not placed in the
light path.
I n t e r m e d i a t e a t t a c h m e n t f o r
orthoscopic observation (U-OPA) is
attached.
Remedy
Remove the Bertrand lens from the light
path.
Remove the analyzer from the light path.
Set at click-stop position.
Remove top lens completely from the light
path.
Swing in the top lens.
Place Bertrand lens in the light path.
Replace it with the U-CPA if you have one.
If you don't, look into the eyepiece sleeve to
observe the conoscopic image.
BX53/BX53M-P
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