Icom IC-M73 Instruction Manual page 45

PROBLEM
The transceiver does not • The battery is depleted.
turn ON.
• Bad connection to the battery pack.
N o s o u n d f r o m t h e • Squelch level is too tight.
speaker. • Volume level is too low.
• Speaker has been exposed to water.
• Water has entered to [SP MIC] connector.
Transmitting is impossible, • Some channels are for low power or
or high power can not be receive only.
selected. • The battery is exhausted.
• The battery is overcharged.
• The output power is set to low.
The displayed channel • Lock function is activated.
cannot be changed.
Scan does not start. • "TAG" channels are not programmed.
No beeps. • Beep tones are turned OFF.
Self check error. • The temperature is outside of –35°C to
(Temperature) +73°C; –31°F to +163°F (approx.).
Self check error. • The connected battery pack's voltage is
more than 11 V.
(Battery voltage)
Transmitting continuously • Ambient noise is too loud.
while not speaking when
using VOX function.
"CHARGE" comment • The connected battery is depleted.
blinks
POSSIBLE CAUSE
TROUBLESHOOTING
SOLUTION
• Recharge the battery pack.
• Check the connection to the transceiver.
• Set squelch to the threshold point.
• Rotate [VOL] to set a suitable level.
• Hold down 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 second 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.
12
1
REF.
2
pp.
25–27
3
p. 3
p. 11
4
p. 9
5
p. 12
6
—
pp. 8, 9,
7
31
8
pp.
25–27
9
—
p. 9
10
p. 10
11
p. 15
12
p. 18
13
14
—
15
16
—
p. 12
p. 22
pp.
25–27
37