Icom IC-M422 - Manual (Page 44)

38
TROUBLESHOOTING
New2001 New2001
10
PROBLEM POSSIBLE CAUSE SOLUTION REF.
No sound from speaker. • Squelch level is too high.
• Volume level is too low.
• Speaker has been exposed to water.
p. 7
p. 7
—
• Set [SQL] to the threshold point.
• Set [VOL] to a suitable level.
• Drain water from the speaker.
The transceiver does
not turn ON. • Bad connection to the power supply. p. 35 • Check the connection to the transceiver.
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.
pgs. 5,
6, 54
p. 7 • Change channels.
• Push [HI/LO] on the microphone to select
high power.
Scan does not start. • TAG channel is not programmed. • Set the desired channels as TAG channels. p. 11
No beeps. • Beep tones are turned OFF.
• The squelch is open. • Turn the beep tone ON in Set mode.
• Set [SQL] to the threshold point. p. 33
p. 7
Distress call cannot be
transmitted. • MMSI (DSC self ID) code is not pro-
grammed.
• Program the MMSI (DSC self ID) code. p. 13
Sensitivity is low. • The Attenuator is activated. • Push [LO/DX• IC ] to turn the function OFF. p. 7
!IC-M422.qxd 05.2.23 2:21 PM Page 38 (1,1)