cps2 b board

Game works but some sounds are missing. Mostly background music and some sound effects in game. Not sure if it’s A or B board but I believe it’s on the A board. I checked all of the chips on the B board using chip reader and everything checked out ok. I was the first person to open this board...

Hey all, I have one of the old bootleg 18-in-1 CPS2 boards like 2010. Works great, never used it much. I'm just getting back into this stuff as a hobbyist, and I saw now that you can swap ROMs yourself on official B boards now. I reprogram/solder console cartridges, but I've not worked on any...

I just spotted this A+B Board set...