Troubleshooting Guide - Major Science MP-300 Instruction Manual

Troubleshooting Guide

Many operating problems may be solved by carefully reading and following the
instructions in this manual. Some suggestions for troubleshooting are given
below. Should these suggestions not resolve the problem, contact the
SERVICE DEPARTMENT or a distributor in your region for assistance. If
troubleshooting service is required, please include a full description of the
problem.
Problem
No Display / lights No AC power
Repeated fuse
broken
Operation stops
with alarm: The
screen displays
Cause
AC power cord is not
connected
The fuse has blown
Hardware failure
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
High resistance due
to tape left on a
pre-cast gel,
incorrect buffer
concentration, or
incorrect buffer
volumes in the
electrophoresis cell
Solution
Check if Mini power supply is
unplugged, or if there is an AC
power source problem
Check AC power cord connections
at both ends. Use the correct cords.
Replace the fuse
Contact your suppliers service
department
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 reconnecting the cables. Press
START/PAUSE to restart the run.
Correct the condition by making sure
the tape is removed from the
pre-cast gel, buffers are prepared
correctly, and the recommended
volume of buffer is added to the
electrophoresis unit.
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