Is there any known problem that fits the follwing scenario: While watching TV there was a sudden crackiling sound and then the sound went out completely. I had it set to DTS cinema 6 for sound mode, I have directV. I rewired it with new speaker wire because i figured they were bured up. Didnt work, got some sound after turning it on/off, then the crackling sound, then nothing! I had a old set of speakers so I tried them, same thing, so its not the speakers, DirectTV, or the speaker wire! Im stumped, could it be the Receiver? Help please!