Nexcope NIB620 - Mechanical System; Electrical System

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TROUBLE SHOOTING GUIDE
7.2. Mechanical system
TROUBLE CAUSE SOLUTION
Image cannot focus with
the high-power objective
Specimen is placed
reversely;
Cover slip is too thick
Turn it over;
Use standard cover glass
with thickness of 0.17mm
The objective will
touch the specimen
when it is converted
from low to high
Specimen is placed
reversely;
Cover slip is too thick
Turn it over;
Use standard cover
glass with thickness of
0.17mm
The specimen did not
move smoothly
The specimen holder is
not securely fastened
Make sure it is securely
fastened
Field of view of one
eye does not match
that of the other
Interpupillary distance
is incorrect
Adjust interpupillary
distance
Eyestrain
The interpupillary dis-
tance does not adjust
Adjust the interpupillary
distance correctly
The illumination is not
appropriate
Adjust brightness control
knob
7.3. Electrical system
TROUBLE CAUSE SOLUTION
The bulb cannot light
No power supply Check the power cord
connection
The pin of the bulb
doesn’t insert properly
Insert the pin deeply
The bulb broken Replace with a new one
The bulb burns out
suddenly
The bulb is not the
specified one; The
voltage is too high
Use the specified bulb;
Lower the voltage
The illumination is not
bright enough
The bulb is not the
specified one
Use the specified bulb
The voltage is too low Raise the voltage