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Causes
Blue filter not used.
Lamp voltage too low.
Causes
Lamp voltage too high.
Causes
Lamp voltage too low.
Aperture diaphragm closed too far.
Condenser position too low.
Incorrect input voltage.
Chapter 8 Troubleshooting Tables
1 Optical
Image tinged yellow.
Image too bright.
Insufficient brightness.
(Also see the causes and corrective measures for electrical problems.)
80
Corrective Measures
Use blue filter. (P.70)
Adjust the voltage by rotating the
brightness control dial. (P.54)
Corrective Measures
Adjust the voltage by rotating the
brightness control dial. (P.54)
Corrective Measures
Adjust the voltage by rotating the
brightness control dial. (P.54)
Open properly. (P.59)
If the microscope is equipped with a
field diaphragm, correct positioning so
that the field diaphragm image is
focused on the specimen surface. (P.57)
If the microscope is not equipped with a
field diaphragm, position the condenser
slightly lower than the upper limit.
Using the voltage selector, select the
voltage that corresponds to the voltage
provided in your region. (P.68)
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