Troubleshooting – Icom VHF MARINE TRANSCEIVER IC-M501EURO User Manual
Page 27
23
8
TROUBLESHOOTING
PROBLEM
POSSIBLE CAUSE
SOLUTION
REF.
No power comes ON.
• Bad connection to the power supply.
• Check the connection to the transceiver.
p. 18
No sound comes from
the speaker.
• Squelch level is too deep.
• Volume level is too low.
• Speaker has been exposed to water.
• Set squelch to the threshold point.
• Set [VOL] to a suitable level.
• Drain water from the speaker.
p. 8
p. 8
—
Transmitting is impossi-
ble, or high power can-
not be selected.
• Some channels are for low power or re-
ceive only.
• The output power is set to low.
• Change channels.
• Push [HI/LO] to select high power.
pgs.
6, 24
p. 8
Scan does not start.
• “TAG” channel is not programmed.
• Set the desired channels as “TAG” chan-
nels.
p. 13
No beep sounds.
• Beep tone is turned OFF.
• Turn the beep tone ON in SET mode.
p. 15
Receive signal cannot
be understood.
• Optional voice scrambler is turned OFF.
• Scramble code is not set correctly.
• Turn the optional voice scrambler ON.
• Reset the scramble code.
p. 10
p. 16
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