73 Zenith Chromacolor II no picture

I just picked up a 19" Zenith Chromacolor II tv from a guy. It was made 4-3-73. The chassis # is 19EC45 and its solid state. We had it working at his house but it looked like the tuner needed cleaning so when I got it home I took off the back and sparyed the tuner and dusted the inside. Well when I got it upstairs I turned it on and it immediately made a poping sound and a burning smell. I looked inside and turned it back on. The horizontal output transister gets hot real fast and I noticed a little black resister connected to it is burned and loose on the wire. Is that my problem or is there more probably wrong?
John