System information

6–2 Hardware Guide
Audio and Video
Using the Microphone Jack
When connecting a microphone to the microphone jack, use a
single-sound channel (monaural) microphone with a 3.5-mm
plug. A monaural electret condenser microphone is
recommended.
■ If you connect a stereo microphone, left-channel sound will
record on both channels.
■ If you connect a dynamic microphone, the recommended
sensitivity may not be achieved.
■ When an external microphone is connected to the notebook,
the notebook microphone is disabled.
Audio Feature Function
1
Speakers (2) Provide stereo audio playback for
multimedia applications.
2
Volume buttons (2) Adjust or mute system volume.
3
Stereo speaker/
headphone
(line-out) jack
Connects powered stereo speakers,
headphones, a headset, or an audio/visual
device such as a television or VCR.
✎
Internal speakers are muted
when a headphone is connected
to the line-out jack.
4
Microphone Supports audio input whether the display
is open or closed; has a standard
sensitivity of –50 dB.
5
Microphone jack Supports a single-sound channel
(monaural) microphone.
279360-002.book Page 2 Friday, December 13, 2002 2:11 PM