I just got my 40 pins yesterday. Wish me luck!. Only one of the flipper eproms feels loose, but it is a different rom (smaller,thinner pins) than all the rest. Why they do this?

The original manual shows a different # for only this rom.

The rom in question is the IC17 flipper rom which uses a 2532, all the rest are 2716s, is there a difference? This is a Black Knight system 7. Where would be the best source for a replacement?

I appreciate that! I just replaced the 40 pin connector, but the game still locks up when I lightly press on the right side where the boards join. Same as before. I can't see any bad solders or breaks on the board. Trying to move the roms doesn't seem to be the problem. I love a challenge, but I may end up having to send vid a plane ticket. Actually I just found a break inside one of the green wires to the upper connector on the driver board.

The wire wasn't broken but the connection from the upper right plug to the driver board (where you can't see it) was broken. I re-soldered it from the backside, and thee Black Knight rides again! With a brand new 40 pin connector.

Well, that didn't last long.
Have you ever been to California, vid?

Just a fuse this time, an old fuse. Seems to be working good now. Yep, perfect!