31
4. One side of
image is blurred
Condenser
is
not
properly
centered or inclined
Reinstall the condenser
and center the condenser
with the centering screw
The nosepiece is not properly
engaged
Engage the nosepiece
properly
The specimen is not clamped
Clamp it with stage clips
5. The image shift
during focusing
The specimen slips on the stage
Fix it
The nosepiece is not properly
engaged
Engage the nosepiece
properly
6. The brightness
is not enough
Then lighting is not properly
engaged
Adjust the brightness
control knob
The condenser is too low
Adjust it properly
Condenser is not properly
centered
Center the condenser
Mechanical Part
TROUBLE
CAUSE
SOLUTION
1. The image can not focus
when using high
magnification objective
The specimen is placed
inversely
The coverslip is too thick
Turn inversely
Use the standard coverslip
(0.17mm)
2. The objective touch the
specimen when changed
from low magnification to
high magnification
The specimen is placed
inversely
The coverslip is too thick
Turn inversely
Use the standard coverslip
(0.17mm)
3. The specimen can not be
moved freely
The specimen holder is
not fixed
Fix it
4. Field of view of one eye
does not match that of
the other
The Interpupillary
distance is not correct
Adjust again
5. Eyes are over strain
No diopter adjustment
Adjust the diopter correctly
The brightness is not
suitable
Adjust the voltage of lamp
6. The coarse focus knob is
hard to run
The tension adjustment
collar is too tight
Loose properly
7. Defocus during
observation
The tension adjustment
collar is too loose
Tighten properly
Electrical Part
