Lenovo B550 User Manual page 20

Chapter 2. Learning the basics
The following describes the features of each function key.
Fn + F1:
Fn + F2:
Fn + F3:
Fn + F4:
Fn + F5:
Fn + F8:
Fn + F9:
Fn + F10:
Fn + F11:
Fn + F12:
Fn + Delete:
Fn + PrtSc:
Fn + Pause:
Fn + ↑ / ↓:
Fn + → / ←:
12
Enter sleep mode.
Turn on/off the backlight of the LCD screen.
Open the interface for the display device switch to select this
notebook or an external display.
Open the interface for display resolution settings.
Open the interface for integrated wireless devices settings (on/off).
Enable/Disable the touchpad.
Start/Pause playback of Windows Media Player.
Stop playback of Windows Media Player.
Skip to the previous track.
Skip to the next track.
Enable/Disable the scroll lock.
Activate the system request.
Activate the break function.
Increase/Decrease display brightness.
Increase/Decrease sound volume.