OPTO-EDU A22.3670 Series, Instruction Manual

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8 Troubleshooting
The performance of the microscope can’t be made fully because of unfamiliar using, this table will
give some advices:
Trouble Cause Remedy
Interpupillary distance is not correct
Readjust it
1. Double image Diopter is not correct Readjust it
Different magnification of two eyepieces
Use the same eyepiece
2. dirt appears in the field Dirt on specimen Clean the specimen
of view Dirt on surface of eyepiece Clean the eyepiece
3. Image is not clear Dirt on objective Clean the objective
4. Image is not clear while Diopter is not correct Readjust it
the focus changing Focus is not correct Readjust it
5. Focus knob is not smooth
Focusing knob is too tight Loose it
6. the focusing arm slipping down
during observation and make the
image not clear
Focusing arm is too loose Tight it
7. Image is not clear on viedo view
during focus changing
The viedo focus is not correct
Readjust it
8. Eye tied easy
Diopter is not correct Readjust it
Brightness is not suitable Readjust it
9. Bulb does not work after the
swatch on
No power supply
Check the power supply
10. Bulb is burned out suddenly
Over voltage Check the voltage
11. Brightness is not enough Below voltage Check the voltage
We Remain Right To Change Technical Data Without Notice Due To Upgrade.