[TinCanAlley]

Originally Posted by old_tv_nut

Do you have the service manual for the set? The published order of convergence adjustments is usually designed to prevent ending up with an excessive error in one area of the screen. Rectangular tube horizontal dynamic waveforms usually consist of the same horizontal rate parabola and sawtooth waveforms as a round tube, plus a higher frequency adjustment that affects things halfway between cneter and edge. Your picture looks like MAYBE you have walked the adjustments into a state where the horizontal rate adjustments are not not really right but are being compensated by the higher frequency adjustments from center to halfway out, and beyond that distance the compensation is wrong. (Or something like that, anyway.)

In other words, MAYBE adjust the H parabola so the blue is less low at the edges and slightly high halfway out, then adjust the high frequency to cancel it in both places.

Sorry I don't remember what names they put on these adjustments, just what the waveforms do.

I went back over the convergence sticky here, but still left feeling I'm doing something wrong vs. a problem in the circuit. I do have the SM and I'm posting the convergence section. Other than it noting to do the miscellaneous first (purity, etc.). I did those years ago and a red raster shows the purity is still good. The remaining part does say whether to go in the order listed, or if those are just the control information and not that they have to be done in that order.

So what I did was center convergence and then went from top down in the adjustment section, touching up center after going through all the controls and repeating that process. I now have a better right side, but minor convergence issues on some horizontal and vertical sections that didn't exist when the right side was as shown in the previous attached pic.

While what I now have is decent for color programs, it is very distracting with B&W programs. While I know I can't get it perfect, I need to find a way to get the best convergence for B&W. If I can do that, the color programs will not be an issue.

I watched a video of a CCII with the chassis just before this one (D something) and they convergence controls seemed identical and the image from their SM look identical to mine. He got his almost perfect.