the place i have working on my donkey kong cocktail just got the monitor working and now says that it all works but you only see the outline of donkey kong do i need to replace the whole pcb our can just one chip be replaced thanks
Depending on what it actually looks like, it's most likely that the PROMs need to be reseated. But, it could also be a color not being displayed, (vid cable, color adjustment, etc...) have them send you a pic and post it here.