This is the main / logic board of the TV:
This is what the formatter board looks like:
This is the Color Wheel / DMD board / block:
And this the power supply and chassis:
Admittedly I am not fully expert on this sort of TV... I have been advising you as if it were an LED TV or a plasma TV. It has a color wheel, so I am not fully up-to-speed on it... and apparently it has no plug-in slots.
I might, at a rather less-than-informed-and-experienced guess, suppose that the color wheel/DMD was what was at fault... after all, look at the color defects! but I really don't know enough to be sure, it simply seems logical. I wouldn't try replacing that part on my say-so. Not without further confirmation from other sources.
So... I think I will Opt Out, to open this case to a more-informed Expert (though you may have to wait a little for the case to be picked up by one) who knows about color wheel TV problems and fixes... and, I advise you to obtain a service manual for this model line. A service manual has information in it that would help you a lot, and make replacing the wrong board/assembly - at your expense! - much less likely.
Would you be interested in a source for such a service manual?
If so here it is, and (rarely enough) it is free-of-charge:
and this might be useful though it has a small price (it's from a very reliable proven source):
I hope this information is helpful... let me know what you think, and if you need any further info I may offer, and after that I will Opt Out in favor of another Expert more throoughly grounded in color wheel TV problems.