Bought this game non working, with a locked MPU. Had the MPU, Logic, Power, and Sound boards serviced. When I boot the game it appears to always go into diagnostic mode showing the typical 01 04. Problem is when I switch to auto in the coin door and hit advance once I hear a/some solenoids pop and the displays go off. I was able to get the game into game over mode once so far, coined up through the door and started a game. Put the ball in play and the first switch hit dropped the displays again. Could really use some guidance, much appreciated.

Im also wondering if the batteries on the board are even saving settings I have done as it appears they are wiped after each reboot.

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Thank you PINTEC. So I unplugged each of the slave displays which resulted in the same effect each time. Even having just the master display active and attempting to get to the Game Over mode also does the same. Does this then point to the master display as being the main issue here?

Batteries are definitely seated on the board, removed and reseated them a couple times. Testing output produces 4.84 volts.

Thank you for your help!

So I grabbed a set of LCD Rottendog displays and the same issue persists with the original mentioned post. Turn the switch to auto hit advance once, I hear a knock, the bottom lights flash and off go the all the displays. Have to turn off then on the machine, still cant get to game over mode. Any ideas?

So it seems this issue is actually triggered by a ball being in the trough. also i can start a game with no ball in the gamebut when it hits the switch in the trough game freezes and the displays go off