Outline of the A440 Series
1-10
FIC A440 Series Service Manual
1.4.2 Front Side of the Notebook
Left Speaker
Optional IR Port
Microphone Port
Internal Microphone
Line-In Port
Earphone Port
Volume Knob
Right Speaker
Figure 1-6
Right Side of the Notebook
Left and Right Audio Speakers
At the front left and right sides of the base unit are two built-in stereo mini speakers. The
speakers are controlled by the audio controller of the notebook and activated by installing the
audio driver. For adjusting the volume of the speakers, you can use the volume control
program under Windows 95/98 or by adjusting the thumb-wheel volume knob also found on
the front side of the notebook.
Internal Microphone
Also in front of the notebook are three small holes where the integrated mono microphone is
installed. This allows you to instantly record voice annotations (normally saved as WAV
files) and later attached them to documents and presentation using the notebook integrated
audio system and application software. Since the notebook also supports full-duplex audio
capabilities, you can talk to the microphone and at the same time listen to others talk when
connected to a speakerphone modem, Internet live chat, or video conferencing.
External Microphone Jack
The microphone jack (1/8-inch mini-jack) allows you to connect an external microphone with
600-ohm dynamic in place of the built-in microphone of the notebook. The external
microphone provides lesser recording noise compared to the built-in microphone of the
notebook.
Plugging in an external microphone disables the internal microphone.
Audio Line-In Jack
This jack (1/8-inch mini-jack) allows you to feed in audio signals from compact disc player,
radio cassette and tape recorder.
