Special Keys; Function Keys And Key Combinations - Lenovo ThinkPad L540 User Manual

Special keys

Your computer has several special keys to help you work easily and effectively.

Function keys and key combinations

The keyboard has several function keys, which consist of the Fn key
• + Enables or disables the Fn Lock function.
When the Fn Lock function is disabled: The Fn Lock indicator is off (default mode). To initiate the
special function of each key, press the function keys directly. To input F1–F12, press Fn and the
corresponding function key.
When the Fn Lock function is enabled: The Fn Lock indicator is on. To input F1–F12, press the function
keys directly. To initiate the special function of each key, press Fn and the corresponding function key.
• Mutes or unmutes the speakers. When the speakers are muted, the indicator on the F1 key is on.
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.
• Decreases the speaker volume.
• Increases the speaker volume.
• Mutes or unmutes the microphones. When the microphones are muted, the indicator on the F4
key is on.
• Darkens the display.
• Brightens the display.
• Switches the display output location between the computer display and the external monitor.
• Enables or disables the wireless features.
1 and the function keys
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Chapter 2 Using your computer
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