I'm having an issue with my DE ST25 resetting. When first turned on and cool it plays fine. I leave it on in attract mode for a few hours and push the Start button the game eject a ball into the plung lane and then will quickly reset, shoot the ball back into the trough and sit in attract mode again.
I restored this game 8 years or so ago and installed a new (at the time) Pinscore power supply. The game has had light play time since then. I have no burnt connectors. When I restored the game I replaced all the ones that looked suspect or burnt. I only feel warmth on some of the connectors when touching the connectors when this issue is happening.
I measure good solid voltage at all test points on the Pinscore power supply board when sitting in attract mode. However when I push the start button I can see the +5v LED blink off very quickly when the reset happens. I haven't tried to put a multimeter on the 5v test point when I push the start button to see what happens. I suspect what ever is happening does so so fast that it wouldn't be picked up. However I can try.
Any ideas on where to look? Perhaps the AC feed to the power supply that the board uses to convert to 5v???