Icom IC-M72 Instruction Manual

Also see for IC-M72: Service manual Instruction manual Instruction manual

Icom IC-M72 Instruction Manual Manual pdf 36 page image

PROBLEMThe transceiver does notturn ON.No sound from thespeaker.Transmitting is impossible,or high power can not beselected.The displayed channelcannot be changed.Scan does not start.No beeps.Self check error.(Temperature)Self check error.(Battery voltage)Transmitting continuouslywhile not speaking whenusing VOX function.“CHARGE” commentblinks30TROUBLESHOOTING11POSSIBLE CAUSE• The battery is depleted.• Bad connection to the battery pack.• 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 receiveonly.• 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 morethan 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] todrain 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) inthe SET mode.• Leave the transceiver at room temperature for awhile. Turn the power ON to check if the internaltemperature has returned to normal.• Verify the battery voltage is correct.• Push [ ] and [H/L•LOCK] to deactivate theVOX function.• Set the VOX gain to lower sensitive value.• Recharge the battery pack.REF.pgs.25–27p. 3p. 11p. 9p. 12—pgs. 8, 9,31pgs.25–27—p. 9p. 10p. 15p. 18——p. 12p. 22pgs.25–27