External component identification

Top components

Item	Component	Description

1	Internal display switch	Turns off the display and initiates Sleep if the display is closed while the
	Internal display switch	power is on.
		power is on.

2	Wireless antennas (3)	Send and receive signals from one or more wireless devices.
	(select models only)	✎ The antennas are not visible from the outside of the computer. For

		optimal transmission, keep the areas immediately around the antennas
		free from obstructions. To see wireless regulatory notices, refer to the
		section of the Regulatory, Safety and Environmental Notices that
		applies to your country or region. These notices are located in Help and
		Support.

3	Internal microphones (2)	Record sound.

4	Webcam light	On: The webcam is in use.

5	Webcam (select models only)	Records audio and video and captures still photographs.

Maintenance and Service Guide

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