Quote:
Originally Posted by LukeSimon
If the alignment is not symmetric on both 0.5mhz side bands of the 3.58mhz chroma signal carrier, then during demodulation, the average of the side bands is what becomes the Pb and Pr signals. I think that reduces the effectiveness of the tint control’s range. I will test this hypothesis after ruling out tint control not phase shifting the oscillator.
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If the overall alignment is not symmetric, it is likely to introduced bad color transients on edges of brightly colored objects, so for example, the transitions between color bars would be bad. This could be seen particularly in the transition between the green and magenta bars as a noticeable color rather than going from green through gray to magenta. The tint control should still work, and should change the tint of both the large areas and the bad transients.
So, I think your problem likely is in the tint control area itself.