I have a Bally World Cup 94' that I have been working on for quite some time. It has given me plenty of issues, most of which I have managed to sift through and solve.
However, I have an issue that has been absolutely stumping me: The DMD refuses to stay 100% lit. I have replaced the DMD control board, and while I am not 100% sure on the condition of the board itself, it is by and far much better off than the original that was in there. After having done so, the condition stayed the same. I then continued to try swapping in different displays, and some of them worked like the image displayed, and some didn't work at all. I figured the ones that didn't work, were probably dead, so I put them away in storage until later. Recently I purchased a used, but functional DMD, and after installing it, I am getting the same result: Partial display, fragmented, blurred.
What am I missing? Any pointers on how to diagnose this issue? I'm approaching my wits end with this pin.