Two days ago I switched on my Fish Tales machine and played a couple of games, everything was working as usual. I left the game in attract mode for a while, and when I looked at it moments later the display was black, not a single dot was lit. I've had the machine for 6 months and never had any problems with the DMD, it's bright and all lines are clear and visible. I tried to restart the game just to be faced by the display flickering and not looking well at all, the animations would come on and off with a lot of grain and eventually the display died again. I took a picture of how it looked just before it went black.
However, thinking that the display had died, the dots began to light up again and I could make out some animations, and all of a sudden the display worked perfectly again like nothing ever happened.
I played some more games and the DMD seemed fine, but yesterday when I got home the same think happened again.

I wonder what this could be. I'm a rookie and have never fixed a pinball machine before so I don't know what to look for. Is it possible that it could be just a bad wire or soldering that causes a loose power connection? Or is the whole DMD broken and need to be replaced? The display looks good when it works so to speak.

This happens quite untimely as I'm about to trade the game in some weeks, I would be very grateful if someone could help me locate this problem. Thanks guys!

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