Quote:
Originally Posted by lnx64
I could be simply overdriving the poor hybrid tube/SS board, but I usually like super bright whites..
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You may already know this, but "super bright whites" is a good way to make a CRT die relatively young.
The high-voltage power supply in that set is being overdriven in the high-contrast picture for sure; compare the "TV Guide" logo in the lower right in that picture to the same logo in the low-contrast picture. The distorted logo is the sign of the power supply driven into non-linearity. Another common sign of overdriving is channel logos (those "bugs" in the lower corners of many TV channels) that change position depending on the video content elsewhere on the screen. Crank the contrast down and that problem often goes away.