E-38
Troubleshooting
6
Misuse of this product may adversely affect performance, even if this product is properly
functional. If any of the following problems occurs, be sure to check the following table for
possible causes before requesting service.
If you detect problems that are not listed below or the problem still persists after measures are
taken, turn off the device and contact your nearest Nikon representative.
1
Optical
Dirt or dust in viewfield.
Causes Corrective Measures
■
Dirt or dust rotates when eyepiece is turned:
Eyepiece is dirty.
Clean the eyepiece. (P.46)
■
Dirt or dust does not rotate when eyepiece is turned: (1) to (4)
(1) The specimen is dirty if dirt or dust
moves when specimen is moved on
stage.
Clean the specimen.
(2) Objective is dirty if dirt or dust
disappears when the objective is
switched.
Clean the objective. (P.46)
(3) Condenser lens is dirty.
Clean the condenser. (P.46)
(4) Aperture diaphragm is too closed.
Open the aperture diaphragm to an
appropriate size. (P.23)
Dirt or dust is displayed on the monitor.
Causes Corrective Measures
Dirt or dust on the monitor moves when camera is turned:
Lenses or specimen are dirty.
Check and clean by following the
procedure in “Dirt or dust does not
rotate when eyepiece is turned” in “Dirt
or dust in viewfield.”
Dirt or dust on the monitor does not move when camera is turned:
Camera is dirty.
Detach the camera and clean it by
following the instruction manual of the
camera.
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