EXP Computer CDS-620_820 - Manual (Page 10)

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SOUND MODULES
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Built-in Speaker:
This built-in 28 mm speaker is a MONO sound speaker.
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Volume Control Knob:
This knob is used to adjust the volume of the built-in speaker and
the external headphone jack.
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External Headphone Jack:
This is used to connect to a headphone or a self-powered external
speaker with a standard 3.5 mm stereo plug. When using with an
external headphone or speaker, the built-in speaker will be
disabled.
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External Microphone Jack:
This jack is used to connect to an external microphone with a
standard 3.5 mm plug. When using with an external microphone,
the built-in speaker will be disabled.
(Note: This jack is designed for condenser type microphones only.
Do not use a magnetic type microphone.)
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Stereo Line-in Jack:
This jack is used to connect with the another audio source. For
example, audio output from CD-ROM Drive when playing the CD
audio.
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Built-in Microphone
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Sound Module Cable:
This 15-pin cable connects to the PCMCIA interface card.