AmScope T720 Series User Manual

T720 Series Microscope
AmScope Proprietary Page 34 of 46
SYMPTOM CAUSE REMEDY
OPTICAL ISSUES
The specimen slide is not fixed.
Secure the slide to the stage with
clips.
One side of the field of
view is dark or the image
moves while focusing
The nosepiece is not in the right
position.
Turn the nosepiece until it clicks into
place.
The iris diaphragm is too small.
Adjust the iris diaphragm to allow the
light to be just larger than the
condenser.
The condenser is not in the right
position.
Adjust condenser height to the top of
the travel range, and then adjust
down to focus image.
The field of view is not
bright enough
Stains, dust or dirt has accumulated
on the condenser, objective,
eyepieces, or base lens.
Clean the lens with lens cleaner or a
non-abrasive lint free cloth.
6.2 Mechanical Issues
SYMPTOM CAUSE REMEDY
MECHANICAL ISSUES
The slide is not secured
correctly.
Adjust the slide to use the stage clips and secure
the sample.
Unable to move the
slide smoothly.
The mechanical stage is not
properly secured.
Tighten the mechanical stage screws to better
secure the stage.
The cover slip is not standard
sized.
Replace the cover slip with the appropriate 0.17mm
thickness slip.
The objective
touches the cover
slip.
The limit-stop is set too high
or not engaged.
Be careful to avoid contact between objective and
the slide when the limit stop is not engaged (unless
using the 100X objective with oil). To re-engage,
focus the sample, then lock the limit stop into place
to set maximum height at a safe but usable
distance.
Focus-knob does
not turn.
The tension knob is too tight.
Loosen it by adjusting the tension ring inside the
coarse focus knob counterclockwise (close to the
arm of the microscope on the left of the
microscope).
Stage declines by
itself.
The tension knob is too loose.
Tighten it by adjusting the tension ring inside the
coarse focus knob clockwise (close to the arm of
the microscope on the left of the microscope).
The coarse
focusing knob won’t
raise the stage.
Limit-stop is engaged.
Disengage the limit stop on the left side of the
microscope inside the coarse focusing knob.
The fine focusing
knob won’t raise the
stage.
Limit-stop is engaged.
Disengage the limit stop on the left side of the
microscope inside the coarse focusing knob.

AmScope T720 Series Specifications

General

Brand	AmScope
Model	T720 Series
Category	Microscope
Language	English