Freebee JVC 32" 2006 model set.

[dieseljeep]

One of my neighbors at my workshop, dropped off a like-new condition, JVC set. It even included the original remote, but too early of a model for a DTV tuner. It works fine with an Insignia DTV converter.
My big problem is, I can't get purity in the upper right corner. The CRT is a USA Philips EIA 312, Sylvania. The yoke is an impressive one, totally potted with some kind of a convergence assembly?
Someone like Zeno, who worked on this newer stuff, please advise.
Too F'in heavy and too nice to scrap!