Hi everybody! First time i own a quad receiver - Pioneer qx-8000a. I got this beauty from a friend of mine with a note that right front channel is down.Ok. I opened it home and it is looking very, very clean inside no one leaking cap pretty clean surface, obviously low mileage device.After careful investigation, i got three resistors broiled bad in the channel 1 board and one bigger green (resistor??) with digits on it: 2BYD O.5K obviously kiloohms. The green one has bad insulation (probably over heated) but it is not broiled. I have a question and favor to ask of you for help - the question is: What may cause this fire there and what is the chance to burn out the new resistors after installing them? Right now the receiver is working very good as two channel stereo with the rear amp, or with channel 3 on the front and channel 4 on the rear amp.Thank you for any answer, I really, really appreciated any help!!