Acer Aspire X3990 - Connector Pinouts and Details

Chapter 5 80
Checking Connector
Connecting Optional Devices
F_AUDIO: Front Panel Audio heade
This header allows the user to install auxiliary front-oriented microphone and line-out ports for easier access.
GPIO1~2: Button recovery jumper
Pin Signal Name Pin Signal Name
1PORT-F_L 2AUGND
3 PORT-F_R 4 AUD_FP_DET
5 PORT-E_R 6 F_R_A
7 SenseB 8 NC
9 PORT -E_L 10 F_L_A
Pin Signal Name
1GP36(GP16)
2GND