Hopefully this is the right forum to post this in... My girlfriend has a Sony STR-K502 reciever she bought around 5 years ago (she estimates) that was part of a HTB. Since I've known her (~8 months) the two front speakers haven't worked. It's always bugged me a little (I'm anal like that), but now that winter's coming we're going to spend a lot more time indoors and I want those speakers to work! I've already tried connecting different speakers and wires - it's definitely an issue with the reciever. What I'm wondering is what I can do to troubleshoot the thing - is there any easy repairs I can check? Fuses, etc? I'm a big computer geek and have no problem fixing PC-related problems, but am somewhat of a virgin when it comes to messing with home theater equipment. Obviously, I can hook it up and all that, but the repair side is foreign to me. I'd like to learn, though, so... If anyone has any tips or simple things I could check... or could let me know where to start looking at why those 2 speakers aren't working, that'd be awesome. If I need to post this somewhere else, please let me know or (mods) move it. Thanks!