Got a pac man board with a small problem that I only just got around to fixing.
On the cherries at the bottom corner of the screen all colours were correct but when they appear as a sprite in the middle of the maze the brown stalk was missing.
Figuring it was a colour prom problem I checked the but all was fine.
Traced it to a 74LS75 at 3D that was causing the problem.
On the cherries at the bottom corner of the screen all colours were correct but when they appear as a sprite in the middle of the maze the brown stalk was missing.
Figuring it was a colour prom problem I checked the but all was fine.
Traced it to a 74LS75 at 3D that was causing the problem.
