HP Pavilion dm4-1018tx Entertainment Notebook PC - Manual (Page 42)

Component Description
(1) Webcam light Turns on when video software accesses the webcam.
(2) Webcam Records video and captures still photographs.
(3) Internal microphone Records sound.
(4) Decrease volume action key To decrease the volume, press the f9 action key.
(5) Increase volume action key To increase the volume, press the f10 action key.
(6) Mute/restore volume action key To mute or restore the volume, press the f11 action key.
(7) Speakers (2) Produce sound.
(8) Audio-out (headphone) jack Produces sound when connected to optional powered stereo
speakers, headphones, earbuds, a headset, or television audio.
WARNING! To reduce the risk of personal injury, adjust the
volume before putting on headphones, earbuds, or a headset.
For additional safety information, refer to the
Regulatory, Safety
and Environmental Notices .
NOTE: When a device is connected to the headphone jack, the
computer speakers are disabled.
(9) Audio-in (microphone) jack Connects an optional computer headset microphone, stereo
array microphone, or monaural microphone.
32 Chapter 4 Multimedia