VIII Troubleshooting Tables
1 Optical
46
Troubles Causes Corrective Measures
Revolving nosepiece not in
click-stop position.
Revolve to click-stop position. Image not focused on one
side.
Specimen rises from stage
surface.
Stabilize it using the specimen
clips.
Troubles Causes Corrective Measures
Revolving nosepiece not in
click-stop position.
Revolve to click-stop position.
Specimen rises from stage
surface.
Stabilize it using the specimen
clips.
Image shifts during focus.
Field lens unit not installed
correctly.
Install correctly. (P. 40)
Troubles Causes Corrective Measures
Blue filter not used. Use NCB11 filter. Image tinged yellow.
Lamp voltage too low. Adjust the voltage by rotating
the brightness control dial.
(P. 14)
Troubles Causes Corrective Measures
Image too bright. Lamp voltage too high. Adjust the voltage by rotating
the brightness control dial.
(P. 14)
Troubles Causes Corrective Measures
Lamp voltage too low. Adjust the voltage by rotating
the brightness control dial.
(P. 14)
Aperture diaphragm closed too
far.
Open properly. (P. 21)
Condenser position too low. Position the condenser slightly
lower than the upper limit.
(P. 38)
Insufficient brightness.
Incorrect input voltage. Using the voltage selector,
select the voltage that
corresponds to the voltage
provided in your region. (P. 35)
(Also see the causes and corrective measures for electrical problems.)
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