Originally Posted by Turrican4D
Even on my own PK350 I tried very different approaches. One method included Va full clockwise and the one I am using at this moment is the opposite-> Va full counterclockwise.
Each method has consequences for the other pots. If I set Va full clockwise, I cannot go so far with Set_Dn and I can't use Vs-Boost.
If I set Va full counterclockwise, I have more headroom for Set_Dn but a little less headroom for Set_Up but
I can boost Vs a little bit, to make up for that, so that I have again the headroom for turning Set_Up more clockwise.
Generally are Set_Up, Set_Dn and Vy the only three of the seven pots, which have a direct influence on the black level.
Also generally there are three pots, which can cause vertical noise patterns-> Vs, Set_Dn and Vy.
One could say with Va full clockwise the danger of getting pixelmissfires out of a black screen to a bright screen (Disney Castle on Disney BDs for example) is not so high as it is with Va counterclockwise, but with counterclockwise the chance of getting missfires during an actual moviescene is lower.
If one decide to better just get some little pixelmissfires sometimes for getting even more out of his panel mll wise, he could experiment mit the pot VSC, cause with VSC at the right sweet spot, the ability of your panel to erase false fired pixels can be sped up.
VZB also has a sweet spot, that you can find the best with halflit secenes leike the one in "The American" ight at the sturt, when Clooney lies there with his soon to be dead girlfriend-> You turn VZB full counterclockwise: The picture will have lost its depth. Now you move slowly(!) micrometer for micrometer clockwise just to the point, where this moviescene jumps back to depth and contrast.
This is what you might get with the seven pots, if you set it too much clockwise or counterclockwise:
VZB____: noise (clockwise) or dullness (counterclockwise)
Vs_____: noisy whites/pixelmissfires (clockwise) or dullness/extreme pixelmissfires (counterclockwise)
VA_____: none obvious erros but possible pixelmissfires with static fullgreen screen (clockwise)
VSC____: None obvious errors or artifacts
Vy_____: noise/less MLL (clockwise) or better MLL (counterclockwise)
Set_Up_: pixelmissfires/better MLL (clockwise) or bad MLL (counterclockwise)
Set_Dn_: noise/better MLL (clockwise) or bad MLL