HP DM4 - Manual (Page 19)

Component Description
(8) RJ-45 (network) lights ● White: The network is connected.
● Amber: The network is showing activity.
(9) RJ-45 (network) jack Connects a network cable.
(10) HDMI port Connects an optional video or audio device, such as a
high-definition television, or any compatible digital or audio
component.
(11) USB port Connects optional USB devices.
Display
Component Description
(1) WLAN antennas (2) Send and receive wireless signals to communicate with wireless
local area networks (WLAN).
(2) Internal microphone Records sound.
(3) Webcam Records video and captures still photographs.
To use the webcam, select Start > All Programs > Cyberlink
Youcam.
(4) Webcam light On: The webcam is in use.
*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.
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