so... after doing everything in the manual, i have concluded that the front right channel in my reciever is blown, when i run the auto-calibration, it makes sound but that is the only time it does. so, would i be able to repair it? or is it done for good? its a sony str-dg500
Does it make sound with the test tones, not auto calibration?
If it produces sound that equals the other channels at any time, it is not the power amp. Blown power amps are either silent, or have very reduced volume which is highly distorted.
So it seems your problem is either in the pre amp or processing board.
Will it produce any sound from an analog source in pure direct mode? Do you get any sound from the FM tuner?
You won't fix it, but a technician you pay may be able to fix it, but it might not be worth it. Sony gear is usually the absolute worst to work on, in my experience. Its been thrown together for as long as I can remember.
What did the tuner cost in the first place, and how old is it?