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I ended up disabling the tuner motors, cleaned the pots and that made a world of difference. I have everything working, and can fine tune ch03 which is nice.
I've figured out that my horizontal sync seems pretty screwed up. I can manage to just barely tweak the horizontal adjustment knob to get the image to sit still, but the color will shift/drift, or the sync will jump as the image changes. Sometimes it loses sync altogether, and I have to start all over. I'm guessing I should, at the very least, test the 6cg7 tube (horiz. osc/afc). I might just replace it... I've also read that the horizontal phase detection diodes could also be a culprit, but I'm just parroting what I've read.
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