I purchased a nice Pharaoh about a year ago and have only just got around to setting it up.
Im a bit of a newb when it comes to early 80's SS games.
This game has a complete set of Rottendog replacement boards including the MPU327 driver/cpu board and Rottendog display board and number displays. This is my first experience with a Rottendog board.
On reconnecting all the connectors I think I accidentally had the 1J2 and 1J6 connectors mixed up since they are keyed the same. I should have checked the Pharaoh manual but of course only did that afterwords.
Anyway after correcting the connectors, surprise surprise, the displays don't work now. Have I completely fried the boards? How do I test to determine where the fault is? Can I fix them?
Funny thing is when I had the 1j2 and 1j6 swapped in the incorrect positions, I played a couple of games - everything worked fine - even the displays worked, but showed only a few numbers - not the score, but they were active. Only after I swapped the connectors to their correct positions did the display stop working altogether.
Rest of the game plays fine.