32 Basic operationIf you do not know your PIN oryou receive a wrong PIN message,consult your radio provider oradministrator.Adjusting the speaker volumeThe volume control also changes the volume level of theradio’s audible indicators.Your radio may be programmed with a minimumvolume level.Standard control headRotate the volume control clockwise to increase the speakervolume and counterclockwise to decrease the volume.Hand-held control headPress to increase the speaker volume and to decreasethe volume.Turning on control-head backlightingThe radio’s display and keypad light up when backlighting ison. This normally only happens when a key is pressed or acall is received. There are two ways you may be able tochange the way backlighting operates on your radio:■ turn on backlighting momentarily, using a programmedfunction key, or■ change backlighting between on and off, using either aprogrammed function key or the Main menu.Turning backlighting on momentarily by usinga function keyYou may be able to use a programmed function key to turnbacklighting on momentarily. Backlighting remains on for afew seconds and then turns off.Alternatively, the function key may be programmed so that:Wrong PIN,try again
