HP Compaq 8510w Mobile Workstation and HP Compaq 8510p Notebook PC - Maintenance and Service Guide

9 Connector pin assignments
Audio-out (headphone)
Pin Signal
1 Audio out, left channel
2 Audio out, right channel
3Ground
Audio-in (microphone)
Pin Signal
1 Audio signal in
2 Audio signal in
3Ground
150 Chapter 9 Connector pin assignments