Nikon ECLIPSE E200 MV Series Instruction Manual page 50

Causes
ND filter for the objective is not used.
Lamp voltage is too high.
Causes
Lamp voltage is too low.
Aperture diaphragm is closed too far.
Condenser position is not correct.
When an optical path switchable
eyepiece tube is attached, optical path is
not switched to the eyepiece 100%.
The lamp has reached the end of its
service life. (for E200 MV series only)
Image is yellowish or bluish. (for E200 MV series only)
Causes
If yellowish, blue filter is not used.
Lamp voltage is too low or too high.
Chapter 8 Troubleshooting
1 Optical
Image too bright.
Insufficient brightness.
38
Corrective Measures
Attach the ND filter for the objective.
(P.26)
Adjust the voltage by rotating the
brightness control dial. (P.17)
Corrective Measures
Adjust the voltage by rotating the
brightness control dial. (P.17)
Open properly. (P.15)
If the microscope is equipped with a
field diaphragm, correct positioning so
that the field diaphragm image is
focused on the specimen surface. (P.14)
If the microscope is not equipped with a
field diaphragm, position the condenser
slightly lower than the upper limit.
Switch the optical path to the eyepiece
100%.
Replace the lamp. (P.32)
Corrective Measures
Use blue filter. (P.30)
Adjust the voltage by rotating the
brightness control dial. (P.17)