원문 게시자: Dan ,
You likely have a short somewhere so the charger and/or battery power overheated the connection. At this point you'll need to replace the MagSafe port and I would strongly recommend you replace the MagSafe charger as well. Here's the IFIXIT guide you'll need to follow: [guide|5922|MacBook Pro 15" Unibody Early 2011 MagSafe DC-In Board Replacement]. As you can see this is not an easy repair. It maybe best to bring your system in to an Apple Store or Apple authorized service center.