Icom IC-40S instruction manual Display backlighting, Lock function, Monitor function

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3 BASIC OPERATION

■Display backlighting

The transceiver has display backlighting with a 5 or 10 sec. timer for nighttime operation. The display backlighting can be turned ON continuously or turned OFF, if desired.

➥Push any switch except [PTT] to turn the backlighting ON.

•When the 5 or 10 sec. timer is set, the backlighting will automat- ically turn OFF when switches have not been operated for 5 or 10 sec., respectively.

■Lock function

The lock function prevents accidental channel changes and accidental function access. [PTT] and the backlight function can be used while the lock function is in use.

➥Push [DUP] for 2 sec. to toggle the lock function ON and OFF.

“ ” appears when the	MR
lock function is in use.

DSetting the backlighting timer

[

qPush [LOW] for 2 sec. to enter set mode. w Push [LOW] several times until “LI” appears.

e Push [Y] or [Z] to select the backlighting timer. r Push [LOW] for 2 sec. to exit set mode.

5 sec. timer		Continuously ON

10 sec. timer

Continuously OFF

■Monitor function

This function is used to listen to weak signals or to open the tone squelch manually.

Push [–] to toggle the monitor function ON or OFF.

MR		“ ” appears when the
		monitor function is in use.
	BUSY

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Contents I40S N33 Supplied Accessories Accessories included with the transceiver QtyTable of Contents Antenna Accessory AttachmentBattery pack replacement Belt clipPanel Description Panel description1EXTERNAL DC Power Jack Charge Function display Basic Operation Select the desired channel with the Y/Z switchesPush LOW to select the output power if necessary Receiving and transmittingLock function DSetting the backlighting timerDisplay backlighting Monitor functionRepeater operation Push and hold PTT to transmitOpen scan Scan OperationScan types Open ScanGroup and priority scans Setting scan tagSelect the priority channel if desired Push LOW for 2 sec. to exit Set mode Scan resume ConditionTone Squelch Operation Calling a waiting station using pocket beepSquelch opens and the signal can be heard Tone squelch operation Pocket beep operationRapid charging with the BC-119 Battery PacksCharging Battery pack Precautions Tery pack becomes exhaustedMultiple charging with the BC-121 Regular chargingBattery pack life About the battery packInstalling batteries in the battery case Operating periodOther Functions Time-out timer Power saverConﬁrmation beeps Optional HM-75A functions Turning the microphone remote control function ON/OFFTransmit lockout HM-75A functionsTroubleshooting Problem Possible Cause SolutionDReceiver SpecificationsDGeneral DTransmitter Current drain approxOptions Battery packsOther options Kamihigashi, Hirano-ku, Osaka 547 Japan