Lenovo ThinkPad T470 20HD, Hardware Maintenance Manual, Page: 53 / 116

Chapter 6. Function keys
The following table describes the functions of function keys and key combinations.
Table 7. Function keys
Function key and
key combination Description
Mute or unmute the speakers. When the speakers are muted, the indicator on the 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.
Decrease the speaker volume.
Increase the speaker volume.
Mute or unmute the microphones. When the microphones are muted, the indicator on the key
is on.
Darken the computer display.
Brighten the computer display.
Manage external displays.
F8
Enable or disable the built-in wireless features.
F9
• For Windows 7: Open Control Panel.
• For Windows 10: Open the Settings window.
F
10
Enable or disable the built-in Bluetooth features.
F11
Open a keyboard setting page.
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