Lenovo ThinkPad T540p - Manual (Page 24)

1 Fn Lock indicator
The Fn Lock indicator shows the status of Fn Lock function. For more information, see “Special keys”
on page 21.
2 Speaker-mute indicator
When the speaker-mute indicator is on, the speakers are muted.
3 Microphone-mute indicator
When the microphone-mute indicator is on, the microphones are muted.
4 Camera-status indicator
When the camera-status indicator is on, the camera is in use.
5 6 System-status indicators
The indicator in the ThinkPad logo on the outer lid of your computer and the indicator in the center of the
power button show the system status of your computer:
• Blinks for three times: The computer is initially connected to the power.
• On: The computer is on (in normal mode).
• Off: The computer is off or in hibernation mode.
• Blinks fast: The computer is entering sleep or hibernation mode.
8 User Guide