Green lines down the screen and text has jailbars across.
Looking at other repairs it looked like the 4116 ram so I ran @NivagSwerdna test rom but that showed all vram to be OK.
Next I thought it might be the 7489 ram but it wasn't that either. I swapped out the 083 and 083 customs from my hyper sports but that made no difference.
I've checked most of the chips around the 4116 ram but can't see anything wrong except for a damaged track coming from pin 11 of the LS367 at F11.
It doesn't appear to affect the bad graphics and even with F12 removed from the the game appears to run fine so that's not the issue.
So any ideas where else I could look.