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6.Trouble shooting
The performance of the microscope can't be made fully because of unfamiliar using,
this following table will give some advice.
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1. Optical system
(1) Brightness is too bright or too dark Brightness adjust not well
Make right adjustment
(2)Dirt appears in the field of view
Dirt on the specimen
Clean the specimen
Dirt on the surface of eyepiece
Clean the surface
Dirt on the surface of the objective
Clean the objective
Dirt on the working stage
Clean the working stage
(3)Double image
Interpupillary distance is not correct
Readjust it
Dioper adjustment is not correct
Readjust it
Magnification of each eyepiece is not
the same size
Mount the same size eyepiece
(4)Image is not clear
Dirt on the surface of the objective
Clean the objective
(5)Image is not clear while the focus
changing
Diopter adjustment is not correct
Readjust the diopter
Focus is not correct
Readjust the focus
(6)The image on the monitor is not
clear when the focusing knob is
turned
The focus of video is not correct
Readjust the focus of video to
a correct position
2. Electrical system
(1) Bulb does not work when the
switch is on
The bulb is not inserted correctly
Insert it correctly
Bulb is wrong
Replace bulb
Fuse is broken
Replace fuse
There is something impede the
light
Clean the working stage
(2) bulb is burned out suddenly
The voltage is too high
Use voltage regulator
Use the wrong bulb
Replace with a correct one
(3) fuse always burned out
The voltage is too high
Use voltage regulator
(4) the bulb flickers or the
Brightness is unstable
The bulb will burn out soon
Replace with a new one
The bulb was not inserted
correctly
Insert I correctly
3. Focusing
(1) the focusing knob is not smooth
The focusing knob is too tight
Loosen it to a suitable
(2)the image is obscure because
of the head slipping down by
itself during observation
The focusing knob is too loose
Tight it to a suitable position
