Icom IC-M502 Instruction Manual

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Icom IC-M502 Instruction Manual Manual pdf 44 page image

10 TROUBLESHOOTING40PROBLEM POSSIBLE CAUSE SOLUTION REF.No power comes ON. • Bad connection to the power supply. • Check the connection to the transceiver. p. 35No sound comes fromthe speaker.• Squelch level is too deep.• Volume level is too low.• Speaker has been exposed to water.• Internal speaker is turned OFF.• Set squelch to the threshold point.• Set [VOL] to a suitable level.• Drain water from the speaker.• Turn the internal speaker ON in set mode.p. 8p. 8—p. 32Transmitting 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.• Change channels.• Push [HI/LO] to select high power.pgs.6, 41p. 8Scan does not start. • “TAG” channel is not programmed. • Set the desired channels as “TAG” chan-nels.p. 13No beep sounds. • Beep tone is turned OFF.• The squelch is open.• Turn the beep tone ON in set mode.• Set squelch to the threshold point.p. 32p. 8Receive signal cannotbe understood.• Optional voice scrambler is turned OFF.• Scramble code is not set correctly.• Turn the optional voice scrambler ON.• Reset the scramble code.p. 10p. 33Sensitivity is low. • The attenuator is activated. • Push [LO/DX] to turn the function OFF. p. 8Distress call cannot betransmitted.• MMSI (DSC self ID) code is not pro-grammed.• Program the MMSI (DSC self ID) code. p. 14