Lenovo B550 Notebook User Manual
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Chapter 2. Learning the basics
The following describes the features of each function key.
Fn + F1:
Enter sleep mode.
Fn + F2:
Turn on/off the backlight of the LCD screen.
Fn + F3:
Open the interface for the display device switch to select this
notebook or an external display.
Fn + F4:
Open the interface for display resolution settings.
Fn + F5:
Open the interface for integrated wireless devices settings (on/off).
Fn + F8:
Enable/Disable the touchpad.
Fn + F9:
Start/Pause playback of Windows Media Player.
Fn + F10:
Stop playback of Windows Media Player.
Fn + F11:
Skip to the previous track.
Fn + F12:
Skip to the next track.
Fn + Delete:
Enable/Disable the scroll lock.
Fn + PrtSc:
Activate the system request.
Fn + Pause:
Activate the break function.
Fn +
↑ / ↓:
Increase/Decrease display brightness.
Fn +
→ / ←:
Increase/Decrease sound volume.