I bought a AMR50 last week, and it worked pretty well for a whole week. Then, today, when I was watching some DVD, there suddenly was no sound. Several minutes later, I heard a little sound from the adapter, and smelt some burned oder. Now I can tell that the satellites are fine, but the adapter and the subwoofer could not work. What can I do? I don't want to send it to some specialist. Can I repair it by myself?