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4. Troubleshooting
In the period of using microscope, if there is any trouble occurs, please referring to
the following sheet listed some common troubleshooting resolve them
.
Trouble
Causation
Remedy
Switch on but bulb
dark
Plug is unreliable
Plug in again
Bulb is broken
Change bulb
Fuse is broken
Change fuse
Bulb is flickering or
brightness is
unsteady
Bulb is unstable
Insert it again
Bulb is broken
Replacing bulb
Brightness of view field
isn’t enough or is
Uneven
Bulb specification doesn’t
meet the requirement
Replacing bulb
Brightness isn’t adjusted
correctly
Adjust rotation
potentiometer
Objective isn’t in correct
position
Make the objective in
correct position
The size of iris aperture is
too small
Adjust the size of iris
aperture
Brightness of view field
isn’t enough or is
Uneven
Lens (objective,eyepiece,
condenser, light collector)
has dust
Clean it
Position of condenser is
too low
Higher condenser
