AmScope SM-4 Series - 6.2 Mechanical Issues; 6.3 Electrical Issues

SM-4 Series Stereo Microscope
AmScope Proprietary Page 27 of 37
6.2 Mechanical Issues
SYMPTOM
CAUSE
REMEDY
MECHANICAL ISSUES
Focus knob does not
turn
The tension knob is too tight.
Loosen it by adjusting the tension by
grabbing both knobs on the focusing
rack and twisting them in opposite
directions.
Stage declines by itself
The tension knob is too loose.
Tighten it by adjusting the tension by
grabbing both knobs on the focusing
rack and twisting them in opposite
directions.
The focusing knob
won’t raise/lower the
head
The focusing rack has reached
the maximum travel distance in
either direction.
Move the focusing rack higher or lower
on the pillar, if using a stand with a pillar.
6.3 Electrical Issues
SYMPTOM
CAUSE
REMEDY
ELECTRICAL ISSUES
The bulb flickers.
The bulb is close to burning
out.
Replace the bulb.
The microscope does
not light up.
The microscope is unplugged.
Check the power cable„s plug.
The bulb is not inserted
correctly.
Insert it correctly.
The bulb burned out.
Replace the bulb.
The bulb burns out
frequently.
The voltage is too high.
Use correct power supply.
Used wrong bulb.
Replace w/correct bulb.