see if anybody can help here on acer aoa150 power jack questions.\n#1 the jack has 5 soldering post. does anybody know which ones are positive and negitive. i know the post coming out the back of jack is positive. and the post on right side near the dge of jack is negitive looking down at the post. but what about the other 3 posts. the metal band that warps around jack has 2 posts on it, are they pos. or neg. and the one right in front of the pos. post in rear.