![Icom IC-M412 Instruction Manual Download Page 60](http://html.mh-extra.com/html/icom/ic-m412/ic-m412_instruction-manual_612793060.webp)
New2001
52
New2001
TROUBLESHOOTING
9
PROBLEM
POSSIBLE CAUSE
SOLUTION
REF.
The transceiver does
not turn ON.
• Bad connection to the power supply.
• Check the connection between the power
supply and the transceiver.
p. 48
No sound or weak sound
comes from speaker.
• Squelch level is too high.
• Volume level is too low.
• Speaker has been exposed to water.
• Set
[SQL] to the threshold point.
• Set
[VOL] to a suitable level.
• Remove the water with the AquaQuake
function.
p. 7
p. 7
p. 9
Transmitting is impos-
sible, 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] on the microphone to select
high power.
pp. 5, 6
p. 7
Scan does not start.
• TAG channels are not programmed.
• Set desired channels as TAG channels.
p. 11
No beeps.
• Beep tones are turned OFF.
• Turn the beep tone ON in the Set mode.
p. 46
Distress calls cannot be
transmitted.
• MMSI (DSC self ID) code is not pro-
grammed.
• Program the MMSI (DSC self ID) code.
p. 13