17Hot KeysHot keys refer to a combination of keys that can be pressed any time toactivate special functions of the computer. Most hot keys operate in a cyclicway. Each time a hot key combination is pressed, it shifts the correspondingfunction to the other or next choice.You can easily identify the hot keys with the icons imprinted on the keytop.The hot keys are described next.Key DescriptionSwitches the keyboard backlight off or on (with 4-levelbrightness). *Switches the RF (radio frequency) radio on and off.When off, all wireless modules (such as WLAN, Bluetooth,and WWAN) cannot be used. When on, individual settings ofthe module work.Decreases the sound volume.Increases the sound volume.Switches the display output to the next choice if an externaldisplay is connected. Choices are:LCD onlyLCD + External display (Duplicate)LCD + External display (Extend)External display onlyThe hot keys are equivalent to Windows logo key + P.Decreases the LCD brightness.Increases the LCD brightness.