Home Science Tools MI-20STERX Instruction Manual - page 5
© Home Training Tools Ltd. 2005
Page 5 of 8
Visit us at
www.homesciencetools.com
Troubleshooting
If you are experiencing difficulty with your microscope, try these troubleshooting techniques:
Problem
Possible Reason and Solution
Light fails to
operate
1.
The AC power cord is not connected. Connect the cord to an outlet.
2.
The bulb is burned out. Replace the bulb. (See “Changing the Bulb,” p.4.)
3.
The power source outlet is inoperative. Have a qualified electrician repair the outlet.
4.
The incorrect bulb is installed. Replace with the correct bulb.
Light flickers
1. The bulb is not properly inserted into the socket. Properly insert the bulb.
2. The bulb is about to burn out. Replace the bulb.
3. The connection at the AC outlet is loose. Have a qualified electrician repair the outlet.
Unable to
focus
The head drops under its own weight. Adjust tension of focus knob. (See “Adjusting
Tension,” p. 4.)
Poor
resolution,
image not
sharp, spots in
field
The objective or eyepiece lenses are dirty. Clean the lenses. (See “Cleaning,” p. 2.)
Warranty
Home Science Tools warrants this microscope to be free from defects in material and workmanship under
normal use and service for the life of the instrument. This warranty does not cover light bulbs, batteries,
or damage due to misuse, abuse, alterations, or accident. Warranty does not cover lenses that have
become inoperable due to excessive dirtiness as a result of misuse or lack of normal maintenance.
Any cameras and software supplied with this microscope are warranted for one year from the date of
purchase.
You will need to return your microscope freight prepaid for warranty service to Home Science Tools, or
the repair facility we designate. We will repair or replace your microscope at no charge and return it
freight prepaid to you. Please call 1-800-860-6272 to arrange warranty service before returning this
instrument.
Please note that warranties apply only to the original purchaser and are not transferable.