Hey there, need help with a old receiver that my old man had as a demo unit in his stereo shop in the early 90's, and then used in our home until a few days ago. He upgraded to something easier to use and repair, and I took on the burden of the old stuff. Now, at first when I hooked it up to my speaker system, the only problem was the rear channel was dead and the screen on the stereo flickered things on and off sometimes. Not a deal breaker for me. Come this morning, and it doesn't work. Power on, and it just makes a faint humming from the left front cabinet and nothing else. Asked my father, he said that he usually power cycles it a few times and it works. No dice. So, anyone have experience digging through the guts of this stereo? Any help is appreciated. To be clear, I'm just focusing in getting it to turn on correctly. I don't care too much about the rear channel right now.