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Chapter 2
Front Audio Header: JAUD2 or JAUD1 (optional Intel spec)
This connector allows you to connect to the front panel audio.
PIN
Description
1
Active Line Out (R)
3
GND (ALO)
5
GND (+12)
7
+12V (1A)
9
MIC
11
Front Line Out (R)
13
Front Line Out (L)
15
GND (FLO)
17
Line In (R)
JAUD1 Pin Definition
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
(Optional Intel spec)
JAUD2 Pin Definition
PIN
Description
2
Active Line Out (L)
4
GND (ALO)
6
GND (+12)
8
(Cut)
10
GND (MIC)
12
Line Next (R)
14
Line Next (L)
16
(Cut)
18
Line In (L)
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
2-18
JAUD1
10
9
1
2
JAUD2
2
18
1
17
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