Special Keys; Function Keys And Key Combinations - Lenovo ThinkPad X240 User Manual

• Use a dry, soft, and lint-free cloth or a piece of absorbent cotton to remove fingerprints or dust from the
multi-touch screen. Do not apply solvents to the cloth.
• Gently wipe the screen using a top-down motion. Do not apply any pressure on the screen.

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. To initiate the special function
of each key, press the function keys directly. To input F1–F12, press the Fn key 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 the Fn key and the corresponding
function key.
Note: Alternatively, you also can disable or enable the Fn lock function in the Keyboard Properties
window. See "Personalized keyboard " on page 48.
• 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.
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and the function keys
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