Hello, I have problem with charge a Macbook A1342. When I connect charger, led on plug lights a bit, but there's no charging. I disassembled Macbook, and discovered that electrical element on mainboard (marked with yellow arrow on photo) is broken. I don't have electrical schema. Can You tell me what element is this, and some detail about it? This element is next to 6258A chip. Model of the mainboard is 820-2567-A. Thank you for help.