Chapter 6. Function Keys - Lenovo ThinkPad T450 Hardware Maintenance Manual

Chapter 6. Function keys

The following table describes the functions of function keys and key combinations.
Table 8. Function keys
Function key and Description
key combination
F1 Mutes or unmutes the speakers.
If you mute the sound and turn off your computer, the sound will remain muted when you turn
on your computer again. To turn on the sound, press F2 or F3.
F2 Decreases the speaker volume.
F3 Increases the speaker volume.
F4 Mutes or unmutes the microphones.
F5 Darkens the display.
F6 Brightens the display.
F7
Switches the display output location between the computer display and an external monitor.
F8 Enables or disables the wireless features.
F9
F10
F11 Views the programs that you have opened.
F12
Fn+Esc Press Fn+Esc to enable or disable the Fn Lock function.
• When the Fn Lock function is disabled: The Fn Lock indicator is off. To initiate the special
• When the Fn Lock function is enabled: The Fn Lock indicator is on. To input F1- F12,
Fn+Spacebar Controls the keyboard backlight.
There are three modes for the keyboard backlight: Off, Low, and High. Press Fn+Spacebar to
change the modes of the keyboard backlight.
Fn+4 Puts your computer into sleep mode.
Fn+B Has the same function as the Break key on a conventional keyboard.
Fn+P Has the same function as the Pause key on a conventional keyboard.
Fn+S Has the same function as the SysRq key on a conventional keyboard.
Fn+K Has the same function as the ScrLK key on a conventional keyboard.
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For Windows 7: Opens Control Panel.
For Windows 8 and Windows 8.1: Opens the Settings charm.
For Windows 7: Opens Windows Search.
For Windows 8 and Windows 8.1: Opens the Search charm.
For Windows 7: Opens Computer.
For Windows 8 and Windows 8.1: Views all the programs.
function of each function key, press the corresponding function key directly. To input F1-
F12, press the Fn key and the corresponding function key.
press the corresponding function key directly. To initiate the special function of each
function key, press the Fn key and the corresponding function key.
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