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APOLLO user manual
Issue G
106
The connections made to J14 are shown in the following system control interface
diagram. For further connector details, see page
.
AC’97 audio CODEC
The VIA VT1616 AC’97 audio CODEC provides six channel outputs with 18-bit resolution
allowing the part to support 5.1 surround sound specifications. For optimum playback
performance, the VIA VT1616 has analogue mixer circuitry that integrates stereo
enhancement to provide a 3D surround sound effect for stereo media. Further provisions
in the hardware allow for down mixing of 6-channel inputs such as DVDs into 4-channel,
or even 2-channel outputs.
The codec audio inputs and outputs are interfaced via three 3.5mm audio jacks. They
provide Mic In, Line In and Line Out connections under 2.0 mode and Centre, Rear Left,
Rear Right, Front Left and Front right audio connections under 5.1 surround sound mode.
Two pins on J14 provide an interface to an on-board speaker for PC BEEP functionality;
refer to the system control interface diagram on the previous page for details.
An input for CD-ROM audio and an output for optical SPDIF (Sony/Philips Digital
Interface) is also provided.
For connector details, see page
.
1
2
3
4
5
K
A
-
+
SPEAKER
RESET
ON/OFF
HDD
LED
TAMPER
DETECT