Using The Microphone Jack; Using The Audio-Out Jack - HP Compaq NC6140 Hardware Manual

Using the Microphone Jack

When connecting a microphone to the microphone jack 1 , 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.

Using the Audio-Out Jack

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WARNING: To reduce the risk of personal injury, adjust the volume
before putting on headphones or a headset.
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CAUTION: To prevent possible damage to an external device, do
not plug a single-sound channel (monaural) plug into the
audio-out jack.
When connecting a device to the audio-out jack 2 :
■
Use only a 3.5-mm stereo plug.
■
For best sound quality, use 24-ohm to 32-ohm headphones.
When an external audio device is connected to the audio-out jack,
the internal speakers are disabled.
Hardware Guide
Audio and Video
5–5