My Mac doesn't charge its battery. Adapter and I/O board are fine.
My MacBook Pro 13" 2.53 GHz (Mid 2009) stopped after a short in the circuit at charging section. The isolation around the pins at the DC in board was gone. When connecting the MagSafe plug to the Mac the short circuit took place.
I replaced the DC in board with a new one and also a burned MOSFET on the logic board.
After that the Mac starts up and works fine. No problems connecting the MagSafe plug. Only the battery won't charge. When I connect the MagSafe cord to the Mac I don't see the LED on the plug (green or red). On the display I do see the charging mark at the battery but it doesn't charge when I look at the submenu.
Tried other MagSafe adapter, battery, DC in board, with no results. Battery in another MacBook Pro works fine.
Which components can be damaged on the logic board. Any help please.
Thanks very much.
Is this a good question?