28 Basic operationAdjusting the speaker volumeRotate the power/volume control clockwise to increasethe speaker volume and counterclockwise to decreasethe volume. The raised dot indicates the current volumesetting.Notice The volume control also changes the volumelevel of the radio’s audible indicators.Locking and unlocking thekeypadThe keypad lock feature prevents you from pressing akey accidentally. The number of keys that are lockeddepends on the way your radio is programmed.If you receive a call while the keypad is locked, press anykey to answer.To lock the keypad:■ Press and hold the right selection key for about onesecond.The message Keypad locked briefly appears in thedisplay, and Unlock appears above the left selectionkey, in place of Menu.When any of the locked keys are pressed, themessage Keypad lock active appears.To unlock the keypad:■ Press and hold the right selection key for about onesecond.