I have Behringer BXL900A 90 watt ammp. It developed a problem- after a few minutes, it makes a loud pop and everything goes dead, even the lights go out. If I shut it off it pops again and then is fine for a few more minutes. I guess it's a crappy ammp, Behreniger just said "Fine, we'll send you a check" but since I have it, I'd like to try to fix it. THing is, I'm not even clear how to open it up. there are tons of screws, but not an obvious cover to remove, like on my compute . If I start unscrewing them, how do I pull the works out of the cabinet? Anybody have any advice?? thanks



