This'll be the 3rd forum I've posted on to no avail... Can anybody please share their SSDS3 w/ FU-RGB board OSSC settings? I can't get 256x240 adv. timings to work properly - only Generic 4:3 gives me a decent grid and checkerboard (which are nowhere near as nice as the adv. timings I just did for my NES/SNES/Genesis/Saturn).
I've tried the Firebrandx ones, but those are for a SuperGrafx with Voultar's RGB board installed. When I try those the image is perfectly sharp, and the checkerboard image is nice and clean, but the console seems to be zoomed in around ~200% weirdly enough. Changing the H/V backporch and Sampling Phase (as suggested) doesn't help (nor does the 2+ hours I tried tuning EVERYTHING I could possibly try lol).
I'm using a nearly NIB USA TG16/TurboGrafx 16, SSDS3 w/ FU-RGB + Audio board, using Retro-Access coaxial cable, original power supply. Looks perfect on my CRT's, and again, the Generic 4:3 looks OK, just a far cry from what I've been able to achieve on other consoles with the OSSC. Oh, did the simple jailbar fix too if that matters.