Acer AL1911 AL1911 Service Guide - Page 29

6.2.3 J2 TO Speaker Pin No Pin 1 Pin 2 Pin 3 Pin 4 Pin 5 Pin 6 Pin 7 Pin 8 Pin 9 Pin 10 Pin 11 Signal +5V VR L+ LMute HP-S HP-L HP-R GND R+ R- Comment VDD for audio volume adjustment Audio volume adjustment Speaker out L+ Speaker out LAudio mute control EAR phone output control EAR phone out L EAR phone out R GND Speaker out R+ Speaker out R- 6.2.3 J3 FOR Audio input Pin No Pin 1 Pin 2 Pin 3 Signal GND Audio IN (1) Audio IN (2) Comment GND From Audio output (1) From Audio output (2) 29