I'm a bit of a novice here so please bare with me. I was disassembling my Onkyo TS-SR508 last night and broke one of the black terminal screws on the back. There is a small bit of the screw still sticking out but i can get a hold of it. I have been looking online and can't really find a replacement part. Honestly I don't think I'm searching for it correctly. Can anyone give me advice or recommendations on how to have this repaired or if I can just do it myself?