Could use some help — I have a Ms. Pac cabaret with PCB troubles. Basically, it's a Pac-Man board with the HSS multi kit. It was working great and died suddenly with garbage on the screen

I've replaced all caps and the Z80 socket. I tried to isolate the issue by removing the HSS kit, putting the Z80 & other chips back in. I can't for the life of me find where I put 5E/5F
— So I'm testing without the full set. Not sure if that's wise, but here we are. Now, I get the checkered pattern below. And the game resets to a different pattern (with a click) after it warms up.
My question: is this expected behavior without the 5E/5F character chips or do I have something else going on?



I've replaced all caps and the Z80 socket. I tried to isolate the issue by removing the HSS kit, putting the Z80 & other chips back in. I can't for the life of me find where I put 5E/5F
My question: is this expected behavior without the 5E/5F character chips or do I have something else going on?


