It uses a 19HNP22 picture tube, so I'm not sure if that qualifies as a low focus model
Tapped all the tubes, nothing. BUT, I did figure out that the retrace lines have something to do with the vertical sync section. When brought just out of lock, the lines get somewhat brighter, and pulled along with the sync when it was adjusted to freewheel very slowly. I cleaned the pot for the vertical hold, and for a brief while, the issue disappeared.
I may be wrong, but it seemed like it came back when the DeOxit dried up, which would lead me to believe that the cleaner in its wet form added some resistance to the circuit at that point? Normally I'd say no, it's just dirty.....but this wasn't happening before the ceramic cap blew.
For the moment, I tweaked the AGC, contrast, and brightness, so that it's barely visible. I mean after all, I need a television to watch, right?
