User's Guide

Use the keyboard shortcuts
The special keys on the keyboard help you work more easily and effectively.
1. Numeric keypad Input numbers quickly when the Numeric Lock indicator is on.
2. Windows logo key
Open the Start menu.
For information about using this key with other keys, see the Windows help information.
3. Caps Lock key
Switch the letter case between the upper case and lower case.
When the key indicator is on, you can type uppercase letters.
4. F1–F12 function
keys
Invoke the special function printed as an icon on each key or standard function.
To choose whether to invoke the special function or standard function:
1. Go to Control Panel and view by Large icons or Small icons.
2. Click Keyboard or Lenovo - Keyboard Manager and select the option of your
preference.
Switch the function of the F1–F12 keys between the standard function and special function
printed as an icon on each key.
When the Fn Lock indicator is on:
• Press F1-F12 to use the standard function.
• Press Fn+F1-F12 to use the special function.
When the Fn Lock indicator is off:
• Press Fn+F1-F12 to use the standard function.
• Press F1-F12 to use the special function.
Mute or unmute the speakers.
When the key indicator is on, the speakers are muted.
If you mute the speakers and turn off your computer, the speakers remain muted when you
turn on your computer.
Decrease the speaker volume.
Increase the speaker volume.
Mute or unmute the microphones.
When the key indicator is on, the microphones are muted.
Darken the computer display.
Brighten the computer display.
Manage external displays.
Enable or disable the built-in wireless features.
Open the Settings window.
12 Lenovo IdeaPad C340-14IWL/IdeaPad C340-15IWL/IdeaPad C340-14API User Guide