Re: need help with samsung LCD/LED un46b6000vf
On these sets, the service menu has far more range for grayscale. The work should be done there. It’s in the advanced section in the SM.
This is not the master grayscale of the tv either.
On some units, the dark end looks blue when 30/80 are calibrated. You have to fix the dark end by eye and sacrifice the 30 to do that.