13
no display on LCD screen
Check whether the fuse in the base of
the fuse is blown
The resistance value is
displayed at 0.
Check if the "test" key is pressed
Check whether the current output line
is well connected and not in good
contact.
Check that the "Current Selection" key
is selected correctly
The resistance value is
shown to be significantly
larger or to be 1 (over range)
during the test.
Check if the measured resistance is
too large
Check whether the voltage input line is
connected to the inside of the current
output line
Check whether the voltage output line
is connected properly and whether the
tested joint is oxidized
