Using The Microphone Jack; Using The Stereo Speaker/Headphone Jack - Compaq Evo N200 Hardware Manual

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.
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If you connect a stereo microphone, left channel sound will
record on both channels.
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If you connect a dynamic microphone, the recommended
sensitivity may not be achieved.
When an external microphone is connected to the computer, the
computer microphone is disabled.

Using the Stereo Speaker/Headphone Jack

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WARNING: To reduce the risk of 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) connector into the
stereo speaker/headphone (line-out) jack.
When connecting a device to the stereo speaker/headphone
(line-out) jack:
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Use only a 3.5-mm stereo plug.
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For best sound quality, use 24- to 32-ohm headphones.
When an external audio device is connected to the stereo
speaker/headphone (line-out) jack, the computer speaker
is disabled.
Hardware Guide
Audio
6–3