SCH200
User’s Manual
Revision Date: June. 10. 2020
14
Pin
Signal Name
Description
1
MIC
Front panel microphone input signal
2
AUD_GND
Ground used by analog audio circuits
3
MIC_BIAS
Microphone power / additional MIC
input for stereo microphone support
4
Presence
Active low signal that signals bios that an
audio dongle is connected to the
analog header
5
FP_OUT_R
Right channel audio signal to front panel
6
AUD_GND
Ground used by analog audio circuits
7
Reserved
reserved
8
Key
No pin
9
FP_OUT_L
Left channel audio signal to front panel
10
AUD_GND
Ground used by analog audio circults
Table 7: FP Audio Header
2.8 Internal speaker pin-out
Pin Signal Name
1
Front_L-
2
3
4
Front_R-
Table 8: Internal header signals