HP Pavilion dv3-4001tx Entertainment Notebook PC - Manual (Page 45)

Component Description
(1) Internal microphones (2) Record sound.
(2) Webcam light Turns on when video software accesses the webcam.
(3) Webcam Records video and captures still photographs.
(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.
Multimedia features 35