My friend has a Motordome (Bally, 6803) that suddenly stopped working. Fuses have all been checked and are working. When the machine is turned on, all of the GI lights turn on properly. The green MPU bootup LED flashes three times fast, pauses for 1 second, then flashes 5 more times quickly. During this time three of the playfield lights are on, then eventually go off, and from that point its frozen.
Here is what is strange… after turning the machine on and off several times, one of the times the game was turned on and left to sit for a few minutes, I heard a (what I think was the coin-mech coil, or maybe a relay) click, and it suddenly fired up properly and worked. I turned it off and back on and it fired up just fine, and again I could hear the coil/relay click before the machine came to life. I was able to play about 5 games and then after my last game was completed the machine locked up again in the same fashion as before. As of now it does not function. It seems to hang right before I expect to hear that "click" that brings it to life.
Has anyone encountered this behavior from a 6803 game before? Could there be a quick easy fix, something obvious, perhaps a common problem that has been addressed before?