2
External component identification
Display
Component
Description
(1)
Internal display switch
Turns off the display or initiates Sleep if the display is closed
while the power is on.
NOTE:
The display switch is not visible from the outside of the
computer.
(2)
WLAN antennas (2)*
Send and receive wireless signals to communicate with wireless
local area networks (WLAN).
(3)
WWAN antennas (2)* (select models only)
Send and receive wireless signals to communicate with wireless
wide area networks (WWAN).
(4)
Internal microphone(s) (1 or 2 depending on
model)
Record sound.
(5)
Webcam light (select models only)
On: The webcam is in use.
Display
7
