HP 4730s LJ525UT#ABA manual Display, Component Description

2 External component identification

Display

Component		Description
(1)	Speakers (2)	Produce sound.
(2)	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.
(3)	WWAN antennas (2)* (select models only)	Send and receive wireless signals to communicate with wireless
		wide-area networks (WWAN).
(4)	WLAN antennas (2)*	Send and receive wireless signals to communicate with wireless
		local area networks (WLAN).
(5)	Internal microphone(s) (1 or 2 depending on	Record sound.
	model)
(6)	Webcam light (select models only)	On: The webcam is in use.

8 Chapter 2 External component identification