Red Clouds in Right and Left Upper Quadrants of Screen

[joeseattle70]

With many of your help, I got the '71 RCA console TV going again. I believe in leaving well enough alone; however, the upper left and right quadrants of the screen get a weird red cloudy blotchy color when red is in the picture, e.g. a man or woman with red clothing, or the skyline, etc. It is not an intermittent problem or one that is random - it consistently does this in the same scenes on a DVD player or watching the news, etc.

I suspected the purity may be off (RED) but wasn't sure if it was just a convergence touch up issue. I've not yet hooked it up to a crosshatch generator because I've been hesitant to monkey with it more before I got your guys' advice. Verdict - purity or static/dynamic convergence or both?

Recap of recent work: New PW400 board (horizontal sweep), new SCR transistors, rebuilt video and chroma boards (bad components) and newly rebuilt tube installed.

Thanks!