Some old sets need a tweak or they're never gonna work right, IMO. Both my CTC-7 and CTC-4 needed chroma alignments done (and done and done) till they worked correctly- remember that when you're replaceing parts like caps, the circuits they are in might need alignment after the recapping is done. That's because the caps you put in will invariably have a different value than the ones you took out, so it makes sense to have to make at least a few tweaks here or there. The CTC-4 in particular refused to receive a color program till I messed with the local oscilator, I guess it wasn't even running till I gave a certain coil a touch, and then it was off to the races.
