Sony KV-9200 Uneven Raster

[vol.2]

I'm working on my KV-9200, and I am seeing that the screen is a bit brighter on the right side of the raster.

I don't have a lot of sets this old, so I'm not super familiar with the H sweep setup on this thing, and I don't know if the uneven brightness is my fault for setting it up wrong, or it's just due to aging components.

If it's my fault, then that's down to the fact that there is a static horizontal convergence grid inside the tube, and I don't really know what to do with it.

The Sam's say there should be either an HSTAT control OR Hor static convergence rings, but I think my set has both of them, based on the number of rings, and what those rings do.

I have Purity plus two sets of rings besides, and all four sets effect convergence differently.

Basically, when I did it, I tried to keep the HSTAT knob as central as possible, and adjusted for the best convergence and geometry, etc. All in all, it looks pretty damn good outside of the uneven raster.

But could this be due to overcompensating in one direction or the other with the rings or the HSTAT control?

The other thought I had was that maybe something in the geometry controls is throwing it off, because the H yoke ends terminate in the geometry circuit on one side and the convergence circuit on the other side. I would estimate based on that the H sweep is tied to those components, and any imbalance in the two sides of the H yoke could manifest as an uneven scan.

You can see below in my picture where the two ends of the H yoke terminate. It's very different from what I'm used to. I don't even see something like an S correction cap.