Anyway, have a crack at it. You can't hurt anything. Just unscrew it, and take it from there, a little step at a time! 🙂 If you find you're in over your head, you can pay BIG BUCKS to an electronic shop to fix it. Or... learn by doing. Honestly, it is NOT THAT HARD! 😄 I could do it for ya *EASILY*, but I can't reach it! 🙂
Be sure to replace the cord with the same gage cord, or heavier. (Gage is how much current the wires can carry. You can unscrew or unsolder the wires, and take the cord to Radio Shack, and they will have the right one.