4
When cleaning the surface, do not use any
organic solvent such as thinner or benzene.
Otherwise, the painting on the surface may be
damaged.
For cleaning the surface, remove the dust,
then wipe with clean dry cloth.
Do not try to make transmission when the
transducer is not connected, otherwise, the
transducer may fail.
Do not try to make transmission when the
transducer is not in water. Otherwise, the
transducer or transmitter may fail.
Do not bring the set in a cooled state suddenly
into a warm room.
A high voltage may leak due to dew condensa
tion resulting in a failure. In this case, use
the set after leaving it alone for 30 minutes.
When removing the power cord, be sure to re-
move the power cord terminal correctly.
Pulling the power cord can damage it resulting
in a fire or an electric shock.