I have a #The Amazing Spider-man sys 80 that I can play for hours and days than suddenly in the middle off a game the displays goes black/turn off and all coils won’t work, only the flipper/bat coils work, and the switches work in that sense that when the ball hitting them it registers sound. You can play but nothing on the displays and when hitting a sourcer the ball won’t eject or when feeding a new ball to the shooter lane.
The game is not reliable, sometimes weeks in between and sometimes just minutes/hours but not specially often. It has also happened in attract mode that the displays just turned off. You can’t start a new credit/game when this happens.
Where should I look? I would be grateful if this could narrows down to a specific board or connector, if possible. You often see - re-pin all connectors - regarding gottlieb sys1/80, that I am not into. The boards have been renovated by a professional, but he lives in Netherlands and I am in Sweden.
All ideas will be grateful received!!