Minor Troubleshooting - Icom IC-M80 Owner's Manual

MINOR TROUBLESHOOTING
Your ІС-М8О has been design-engineered to provide years of
trouble free operation. This has been made possible through
the use of the most current technology along with ICOM's
years of experience in the production of high quality, depend-
able VHF/FM equipment. Your ІС-М8О has been specifically
designed to withstand years of use in many different, extreme
environmenis.
However, as with all marine electronic equipment, it is possible
that some :roblems may occur that would interfere with the
operation :f the set. Should such a problem occur, it is
recommenced that your unit be taken directly to your ІСОМ
dealer or г thorized ІСОМ repair service center for qualified
service.
Some prot!ems may occur which may interfere with the
operation Т the radio that are not directly related to the
electronic :ircuitry within your set. Below is a brief descrip- .
tion of coramon problems outside of your set that may occur,
and means of identifying them.
1. Antenna
If it appears that you are having unusual difficulty in trans-
mitting or receiving properly, it is possible that the cause is
due to a defective or faulty antenna system.
The most common problem that occurs with antenna systems
include broken or shorted antenna cable runs, or corroded or
defective connector installation. Double check to be sure the
connector is soldered to the connector and that it is not
shorted.
Visually inspect these items to help isolate the problem.
A qualified technician should correct the antenna problem.
2. Power loss
If, in turning your radio to the ON position, the display fails
to light and no sound is heard from the radio, a common
problem is low or no power from the battery source in the
boat. Visually inspect the power cable from the battery for
broken or short leads. Also, inspect the fuses both in the
vessel's "fuse block'' as well as the fuse in the power cable on
the radio for corrosion or a blown fuse.
3. Microphone cable |
If, in transmitting, either the voice is not heard or the TX
letters is not displayed, the problem could be in the micro-
phone cables. Inspect the mic cables for possible breaks or
tears that could be the source of the problem. If such is the
case, replace the mic cord.
4. Ignition noise
Occasionally ignition noise from operation of the vessel's
engine and/or occasionally refrigeration or power generating
equipment may cause static interference with your radio.
Ignition noise, alternator "whine" and spurious signals from
other electrical devices may be found and cured by experi-
enced technicians using known techniques and noise reduction
devices.
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