After fixing two bad vector RAMs on this Space Duel PCB, the image looks ok but there is some bowing of the sides and the centering seems only to move the objects in the middle the screen until they are clipped at the edge. It is also too big. Adjusting the X and Y size pots down to their minimum barely squeezes the image onto the monitor. All the adjustment pots do have an effect, but no amount fixes the issues.
So I believe this is one or more of the MC1495 multipliers, since they handle pincushion correction as well as taking the size pots as inputs.
So I believe this is one or more of the MC1495 multipliers, since they handle pincushion correction as well as taking the size pots as inputs.


