Dynex DX-MIDTWER Guia Del Usuario página 7

Opening the chassis
AC97 connector
No. Signal name
1 MIC
2 AUD_GND
3 MIC_BIAS
4 AUD_GND
5 FP_OUT_R
6 FP_RETURN_R
7 AUD_5V
8 FP_OUT_L
9 FP_RETURN_L
Description
Front panel microphone
input signal (biased when
supporting stereo
microphone)
Ground use by analog
audio circuits
Microphone
power/additional MIC
input for stereo
microphone support
Ground used by analog
audio circuits
Right channel audio signal
to front panel (headphone
drive capable)
Right channel aduio signal
return from front panel
(when headphones are
unplugged)
Filtered +5 V used by
analog audio circuits
Left channel audio signal
to front panel (headphone
drive capable)
Left channel aduio signal
return from front panel
(when headphones are
unplugged)
High definition audio
No. Signal name Description
1 PORT 1L Analog port 1/Left channel
(microphone)
2 GND Ground
3 PORT 1R Analog port 1/Right
channel (microphone)
4 PRESENCE# Active low signal that
signals the BIOS that an
Intel® HD audio dongle is
connected to the analog
header. PRESENCE#=0
when an Intel HD aduio
dongle is connected.
5 PORT 2R Analog port 2/Right
channel (headphone)
6 SENSE1_RETURN Jack detection return for
front panel (JACK1)
7 SENSE_SEND Jack detection sense line
from the Intel HD audio
CODEC jack detection
resistor network
8 PORT 2L Analog port 2/Left channel
(headphone)
9 SENSE2_RETURN Jack detection return for
front panel (JACK2)
5