27Volume control/mute keysLock keysThe keyboard has three lock keys which you can toggle on and off to switchbetween functions.Note: Scroll Lock may not work with some applications.Icon Key DescriptionVolume up Press to increase audio volume.Volume down Press to decrease audio volume.Mute Toggle sound on/off.Lock key DescriptionScroll Lock When activated, the screen moves one line up or down whenyou press the up arrow or down arrow, respectively.Num Lock When activated, the keypad is set to numeric mode, i.e., thekeys function as a calculator (complete with arithmeticoperators such as +, -, * and /).Caps Lock When activated, all alphabetic characters typed appear inuppercase (same function as pressing Shift + ).
