![background image](http://html1.mh-extra.com/html/icom/im423/im423_instruction-manual_4301608102.webp)
93
New2001
TROUBLESHOOTING
13
PROBLEM
POSSIBLE CAUSE
SOLUTION
REF.
The transceiver does
not turn ON.
• Bad connection to the power supply.
• Check the connection to the transceiver and
power supply.
p. 83
Little or no sound comes
from the speaker.
• Squelch level is set too high.
• Volume level is set too low.
• Speaker has been exposed to water.
• Set the squelch to the threshold point.
• Set the volume to a suitable level.
• Remove the water with the AquaQuake func
-
tion.
p. 15
p. 15
p. 16
Transmitting is impossi-
ble, or high power can-
not be selected.
• Some channels are programmed for low
power or receive only by regulations.
• The output power is set to low.
• Change channels.
• Push [HI/LO] to select high power.
pp. 9,
10, 11
p. 11
Scan does not start.
• TAG channels are not programmed.
• Set the desired channels as TAG channels.
p. 18
No beep sounds.
• Beep tones are turned OFF.
• Turn the beep tones ON in the CONFIGURA
-
TION menu.
p. 78
Distress calls cannot be
transmitted.
• MMSI (DSC self ID) code is not pro
-
grammed.
• Program the MMSI (DSC self ID) code.
p. 8
Summary of Contents for iM423
Page 98: ...89 10 CONNECTIONS AND MAINTENANCE Gasket Mounting base Cap Nut...
Page 104: ......
Page 105: ...MEMO...
Page 106: ...MEMO...