I am learning to walk when it comes to the realm of arcade machines. I have a street fighter Dynamo Cab, and changed the board over to a MKombat jamma pcb and the screen is rolling. I will be more than willing to provide information on any piece if you point me in a direction. The SF2 board is fine the roll occurs with the new board.
I am sorry for not posting all the info needed to get a solid reply, but I am new and learning.
Is the board shot or is there hope?