Troubleshooting - Icom IC-M72 Instruction Manual

11

TROUBLESHOOTING

PROBLEM
The transceiver does not
turn ON.
No sound from
speaker.
Transmitting is impossible,
or high power can not be
selected.
The displayed channel
cannot be changed.
Scan does not start.
No beeps.
Self check error.
(Temperature)
Self check error.
(Battery voltage)
Transmitting continuously
while not speaking when
using VOX function.
"CHARGE" comment
blinks
30
POSSIBLE CAUSE
• The battery is depleted.
• Bad connection to the battery pack.
the • Squelch level is too tight.
• Volume level is too low.
• Speaker has been exposed to water.
• Water has entered to [SP MIC] connector.
• Some channels are for low power or receive
only.
• The battery is exhausted.
• The battery is overcharged.
• The output power is set to low.
• Lock function is activated.
• "TAG" channels are not programmed.
• Beep tones are turned OFF.
• The temperature is outside of –35°C to +73°C;
–31°F to +163°F (approx.).
• The connected battery pack's voltage is more
than 11 V.
• Ambient noise is too loud.
• The connected battery is depleted.
SOLUTION
• Recharge the battery pack.
• Check the connection to the transceiver.
• Set squelch to the threshold point.
• Rotate [VOL] to set a suitable level.
• Push and hold both [16•9] and [H/L•LOCK] to
drain water from the speaker.
• Dry [SP MIC] connector.
• Change channels.
• Recharge the battery pack.
• Verify the battery voltage is correct.
• Push [H/L•LOCK] to select high power.
• Push [H/L•LOCK] for 1 sec. to cancel the function.
• Set the desired channels as "TAG" channels.
• Set the beep tones to ON (Fix Beep/User Beep) in
the SET mode.
• Leave the transceiver at room temperature for a
while. Turn the power ON to check if the internal
temperature has returned to normal.
• Verify the battery voltage is correct.
• Push [ ] and [H/L•LOCK] to deactivate the
VOX function.
• Set the VOX gain to lower sensitive value.
• Recharge the battery pack.
REF.
pgs.
25–27
p. 3
p. 11
p. 9
p. 12
—
pgs. 8, 9,
31
pgs.
25–27
—
p. 9
p. 10
p. 15
p. 18
—
—
p. 12
p. 22
pgs.
25–27