Acer AL1911 AL1911 Service Guide - Page 24

4. VK906 Control Panel Board 4.1 Description The VK-906 is designed to offer a user interfaced control panel which passes and receives signals to and from VL-901 display control board. 4.2 Connector and Switch Locations 4.3 Connector type Location Type J1 4500-10 J6 4500-11 J3 87502-0200 J4 87502-0200 J2 SCJ-0348-C 4.4 Connector pin Assignment 4.4.1 J1 Pin NO. 1 2 3 4 5 6 7 8 9 10 Signal MUTE LED-Y LED-G GND KEY-POWER KEY-DOWN KEY-R KEY-L KEY-UP GND 4.4.2 J6 Pin NO. 1 2 3 4 5 6 Signal +5V VR L+ LMUTE HP-S Maker E&T E&T ACER ACER SC Number of pins 10 11 2 2 9 Comment Audio mute control Power saving mode Monitor is ON GND Power ON/OFF key Function select counter-clockwise key Adjust up key Adjust down key Function select counter-clockwise key GND Comment VDD for Audio Volume Adjustment Audio Volume Adjustment Speaker Out L + Speaker Out L Audio mute control EAR phone output control 24