please I urgently need help,I have this Dell laptop when you put in the charger,the led on power jack comes on and goes off,but comes on again only if you put in the battery,but laptop does not on,after checking the board i relies PL2 becomes warm and I even changed PR134 but still problem is there,can someone please help,model number Dell PP39L and board number is DA0FM8MB8E0 REV:E