Troubleshooting
ELECTRICAL
PROBLEM CAUSE
SOLUTIÓN
Bulb does not work.
Plug outlet does not work
Cable not connected
Bulb burned out.
Fuse blown.
Wrong bulb.
Repair by a qualified specialised
technician.
Connect cable.
Replace bulb.
Replace fuse.
Replace by the correct bulb.
Bulb burns out in short
time.
Voltage too high.
Reduce light intensity to a minimum
before turning the microscope on or
off.
Bulb burns out immediately. Wrong bulb.
Replace with the correct bulb.
Bulb flickers.
The bulb is not correctly inserted into
the socket.
Bulb about to burn out.
Fuse holder not locked into proper
position.
Loose connection at plug outlet.
Insert correctly.
Replace bulb.
Close correctly.
Repair by a qualified specialised
technician.
Fuse blows in short time.
Wrong fuse.
Replace with the appropriate fuse.
Fuse blows immediately.
Short circuit
Repair by a qualified technician.
IMAGE QUALITY
PROBLEM CAUSE
SOLUTIÓN
No image.
Nosepiece not positioned properly.
Image too bright.
Turn until clicks into place.
Reduce the intensity of the light.
Poor resolution.
Dirty objective.
Dirty eyepiece.
Slide upside down.
Wrong cover slip used with slide.
Light too bright.
Dirty condenser.
Clean objective.
Clean eyepiece.
Replace the slide with the cover slip
facing upwards.
Use 0.17mm thick cover slips.
Reduce light intensity or adjust the
diaphragm aperture.
Clean condenser.
Spots in field of view
Dirty eyepiece.
Dirty slide.
Dirty condenser.
Clean eyepiece.
Clean preparation.
Clean condenser.
Uneven illumination of field. Nosepiece not positioned properly.
Diaphragm aperture not sufficiently
open.
Turn until it clicks into place.
Adjust appropriately.
MECHANICAL
PROBLEM CAUSE
SOLUTIÓN
It does not stay in focus.
The stage is sliding down on its own. Adjust the tension of the coarse focus
knob.
It does not focus.
The stopper on the ascending
movement of the stage needs
adjusting.
Readjust the stopper.
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