On Saturday, June 1, 2013 4:54:09 PM UTC-4, Smarty wrote:
"William Sommerwerck" wrote:

Sounds like a purity problem. Start by degaussing it.



A purity problem would NOT have black and white looking ok as reported in

the original post nor would it result in explicit color replacements as

reported.


Not true. Purity problems are most apparent when the chroma is on. If one looks carefully, the purity problem does exist in the black and white image, but it's just no where near as apparent.


Sounds like a color demodulation problem.

A color demodulator problem would cause incorrect colors, but I've never seen one cause localized errors as the OP pointed out.

Most likely the dual degaussing thermistor is either bad, or has one lead detached from the board.