Acer 3300S - Manual (Page 87)

81 Chapter 5
Front Panel Audio Connector: JAUD
You can connect an optional audio connector to the Front Panel Audio
Header. JAUD is compliant with Intel ® Front Panel I/O Connectivity Design
Guide.
JAUD
1 9
2 10
PIN SIGNAL DESCRIPTION
1 AUD_MIC Front panel microphone input signal
2 AUD_GND Ground used by analog audio circuits
3 AUD_MIC_BIAS Microphone power
4 AUD_VCC Filtered +5V used by analog audio circuits
5 AUD_FPOUT_R Right channel audio signal to front panel
6 AUD_RET_R Right channel audio signal return from front panel
7 HP_ON Reserved for future use to control headphone amplifier
8 KEY No pin
9 AUD_FPOUT_L Left channel audio signal to front panel
10 AUD_RET_L Left channel audio signal return from front panel
Pin Definition
CAUTION!!!
If you don’t want to connect to the front audio
header, pins 5 & 6, 9 & 10 have to be jumpered
in order to have signal output directed to the
rear audio ports. Otherwise, the Line-Out con-
nector on the back panel will not function.
5
6 10
9