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Game plays. Black area of screen is white and maze is red. I have pictures for reference. Any clue as to what the issue is would be helpful.
"White background, red maze, blocks behind characters.
5C Removed
5A p14 high"
per https://www.mikesarcade.com/arcade/pactrouble.html
Are the dots still there?
Yeah I read that. But I wish he would have elaborated a little. Does that mean 5C was removed from the board when he got it?. What does that mean? There is a 74LS194 at 5C. Does that mean that 5C is bad and needs replacing?
I would probably shotgun it to swap out 5C with a replacement chip. Otherwise it's a logic probe check to confirm it's passing data through correctly. You could always try taking 5C out to see if anything changes as well. Seems to be a pretty dead-on description of your issue.
Game plays. Black area of screen is white and maze is red. I have pictures for reference. Any clue as to what the issue is would be helpful.
There is a 74LS194 at 5C. Does that mean that 5C is bad and needs replacing?
Wrong color proms.
Watching this thread..i have the same problem with stand up ms pac. The game played fine then one day i turn it on and it looks almost exactly like yours. Here is my thread on it:
https://forums.arcade-museum.com/showthread.php?t=401178
I see your thread doesn't look like it concluded with a solution. I have the parts to swap in new 74LS194. Try to get to it this week. I will post results.
Any news to report?
It means absolutely nothing because that "guide" is completely worthless.