Icom IC-M412 Instruction Manual - Page 60

Troubleshooting

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9 TROUBLESHOOTING PROBLEM POSSIBLE CAUSE SOLUTION REF. The transceiver does • Bad connection to the power supply. not turn ON. • Check the connection between the power p. 48 supply and the transceiver. N o s o u n d o r w e a k • Squelch level is too high. s o u n d c o m e s f r o m • Volume level is too low. speaker. • Speaker has been exposed to water. • Set [SQL] to the threshold point. p. 7 • Set [VOL] to a suitable level. p. 7 • Remove the water with the AquaQuake p. 9 function. . Transmitting is impos- • S ome channels are for low power or re- • Change channels. pp. 5, 6 sible, or high power ceive only. can not be selected. • The output power is set to low. • Push [HI/LO] on the microphone to select p. 7 high power. 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 • M MSI (DSC self ID) code is not pro- • Program the MMSI (DSC self ID) code. be transmitted. grammed. p. 13 52

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52
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