Front Panel Audio Connector: Jaud1; Irda Infrared Module Header: Jir1 - MSI 770 C45 - AM3 AMD 770 HDMI Motherboard User Manual

M S-7125 ATX M ainboard

Front Panel Audio Connector: JAUD1

The JAUD1 front panel audio connector allows you to connect to the front
panel audio and is compliant with Intel
JAUD1
10
2
1
9
MSI Reminds You...
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 connector on the back panel will not
function.

IrDA Infrared Module Header: JIR1

The connector allows you to connect to IrDA Infrared module. You must config-
ure the setting through the BIOS setup to use the IR function. JIR1 is compliant with
®
Intel Front Panel I/O Connectivity Design Guide.
2-20
®
PIN SIGNAL
1 AUD_MIC
2 AUD_GND
3 AUD_MIC_BIAS
4 AUD_VCC
5 AUD_FPOUT_R
6 AUD_RET_R
7 HP_ON
8 KEY
9 AUD_FPOUT_L
10 AUD_RET_L
6 5
JIR1
2 1
Front Panel I/O Connectivity Design Guide.
Pin Definition
DESCRIPTION
Front panel microphone input signal
Ground used by analog audio circuits
Microphone power
Filtered +5V used by analog audio circuits
Right channel audio signal to front panel
Right channel audio signal return from front panel
Reserved for future use to control headphone amplifier
No pin
Left channel audio signal to front panel
Left channel audio signal return from front panel
JIR1 Pin Definition
Pin Signal Pin
1 NC 2
3 VCC5 4
5 IRTX 6
10
6
5
9
Signal
NC
GND
IRRX