Acer 3100 - Manual (Page 11)

Chapter 1 5
IO Board Layout
Top View
1 Microphone Connector (INTMIC1) 7 Microphone-in Port (MIC1)
2 Cover Switch Cable Connector
(LID1) 8 Line-in Port (LINT1)
3 Audio Codec-Realtek ALC655 (U1) 9 USB Port (USB1)
4 IO Board to Main Board Connector
(BTB1) 10 USB Port (USB2)
5 Speaker Set Connector (SPKR1) 11 FIR (U6)
6 Line-out Port (LOUT1) 12 RJ11 Modem Jack (JK1)