Instruction manual

13
Troubleshooting Guide
Many operating problems may be solved by carefully reading and follow the
instructions in this manual accordingly. Some suggestions for troubleshooting
are given below. Should these suggestions not resolve the problem, contact
our SERVICE DEPARTMENT or a distributor in your region for assistance. If
troubleshooting service is requ ired, please include a full description of the
problem .
Problem
Cause
Solution
No Display / lights
No AC power
Check if Minis power supply is unplugged,
or AC power source problem
AC power cord is not
connected
Check AC power cord connections at both
ends. Use the correct cords.
The fuse has blown
Replace the fuse
Repeated fuse
broken
Hardware failure
Contact Major S cience service
department
Operation stops
Electrophoresis leads
are not connected to
the power supply or to
the electrophoresis
unit(s), or there is a
broken circuit in the
electrophoresis cell
Check the connections to the power
supply and on your electrophoresis cell to
make sure the connection is intact; check
condition of wires in electrophoresis unit.
Close the circuit by reconnectin g the
cables. Press START/STOP to restart the
run.
High resistance due to
tape left on a pre-cast
gel, incorrect buffer
concentration, or
incorrect buffer
volumes in the
electrophoresis cell
Correct the condition by making sure the
tape is removed from t he pre-cast gel,
buffers are prepared correctly, and the
recommended volume of buffer is added
to the electrophoresis unit.
Encountering Problems
1. Check the troubleshooting section.
2. Call Technical Service or e -mail to [e-mail]
3. If the unit must be shipped back for repair, contact Major S cience or the
distributor for a Return Authorization Number and shipping instructions. The
unit will be repaired as quickly as possible and returned to you.