5
TROUBLESHOOTING
Problem
Reason for Problem
Solution
Image does not remain in
focus
Image will not focus
Poor Resolution
(Image not sharp)
Spots in field of view
Focus mechanism may be loose and
causing the stage to drift.
Rack stop not set at proper position
Slide upside down
Slide cover slip too thick
Objective lenses dirty
Eyepiece lens dirty
Too much light
Eyepiece or condenser lens too dirty
Specimen slide dirty
The microscope included a small focus
adjustment tool in shipment. Insert
this tool into the slots on the shaft of
the microscope. While holding the
coarse focus knob steady, rotate the
tool clockwise to tighten the focus
mechanism.
Adjust rack stop
Place slide on stage with cover slip up
Use 0.17 mm thick cover slip
(No. 1cover slip)
Clean objective lenses
Clean eyepiece lenses
Adjust disc diaphragm
Clean lens
Clean slide
***Spots in field of view can also result from dirt on inside of eyepiece. It is recommended that you have a
service technician clean inside of lens.
Problem
Reason for Problem
Solution
Light Fails to operate.
Outlet inoperative.
AC Power cord not connected.
Bulb burned out, Fuse blown
Have qualified service technician
repair outlet.
Plug into outlet.
Have qualified service technician
replace bulb and/or fuse
