This unit has multiple settings for adjustment, beyond even proc amp (which it also contains). The menu has multiple depth levels, noted on the LCD screen by the dots.
I generally set these up properly, but sometimes units (anything, not just this specific TBCs) get knocked back to defaults. So you'll need to check/verify the sharpness is off/SH0, and phase is SP2.
The proc amp is on the 2nd, with more settings on 3rd/4th. The comb filters can affect luma, and then you have 2x (in+out) setup/pedastal control that affect luma most. Some of these counteract one another, but not 100%, so you'll need to test combinations for your sources.
The manual only discusses notch, not comb, claiming that it is not used/needed. But that's false. So the comb filter on/off, and how it augments values, is not mentioned or discussed. Like most TBCs, this unit has "hidden features", some of which should not be hidden (like comb), and others that get you in trouble if messed with (especialy anything on the board, don't mess with pots).
When using proc amp, remember that brightness/gain alone is not enough to adjust exposure, but also lower contrast if overexposed.
This conversation is very similiar to
https://www.digitalFAQ.com/forum/vid...djust-key.html
... but ignore the OP posts, only read mine and BW37.
For non-owners reading this post...
The BVTBC10 is a powerful unit, but multiple versions exist, and per generation. So there's about a dozen variations out there, maybe more, with many (most?) of them being bad/wrong from EOL (spewing noise, or faulty chips like Cypress). It's the early units, like the one discussed here (vetted by me, then refurb'd), that are needed. So beware of random buying these from eBay/Facebook/wherever, as sold from recyclers, estate sellers, etc -- ie, people that sell lots of random items/junk.