Chosen Solution
In looking to repair an Air, I have determined that somehow someway a liquid got inside the case. It does not charge at all. No green light. Bought a new battery and installed it, but that did not solve the issue. So … is this an I/O board issue? Was the logic board fried? How can I identify the specific model of the logic board or the laptop itself? One of the capacitors is marked as “4R7 433 5AM” below what I believe is the wireless card. Thanks in advance for the reply.
The easiest method would be to look up the serial number on the back case of the laptop. Powerbook medic has a search tool for it. http://www.powerbookmedic.com/identify-m…
