18
8.
Trouble shooting
Some problems will happen in the using of the microscope, you could solve them according the
following list.
PROBLEMS
REASON FOR PROBLEM
SOLUTION
I
、
Optical Part:
1
、
Illumination is
opening, but the
field of view is
dark.
The poor contact exists in the lamp
house and the illumination system.
Ensure the contact pin and the lamp
holder pin work well
The lamp bulb spoils
change a new bulb
The brightness adjustment knob is set
too dark
Adjust the knob in a proper position
No use the appointed lamp bulb
use the specified halogen Lamp
6V30W
2
、
The edge of the
field of view has
shadow or the
brightness is
asymmetry
The nosepiece is not in the located
position
Adjust it into the located position
The surface of the lamp become
black
Change a new lamp bulb
The surface of the lens is moldy or
has contaminant
Clean the lens
3
、
Find dust and stain
in the field of view
There are stains on the specimen
Change the specimen
There are stains on the eyepiece
Clean the eyepiece
4
、
The image is
defocus\low-resolu
tion
The objective damage
Mend and correct the objective (send
to factory for overhauling)
The lens of the objective and
eyepiece is moldy or have
contaminant
Do cleaning
The opening of Aperture diaphragm
and field diaphragm is not proper,
and too much astigmatism.
Change the opening of the aperture
diaphragm and field diaphragm
Fine focus system is broken
Examine and repair the fine focus
system(send to factory for
overhauling)
The objective is not in the center of
the light path
Turn the nosepiece to the located
position