A Pinside Quiz???... You'll need to check what switches send power to the score motor. Do you have the schematic for the machine? Look for the score motor icon on the schematic and follow the line to the right that will meet up with 5 or 6 switches. You'll need to check these primary switches to see if they are adjusted properly... Some simple things to check: make sure the coin door switches are not stuck in the closed position; check to see if all the score reel switches are in the zero position; check the ball count unit to see if it's resetting...

is it trying to kick the ball? check hole switch. and for anything on the pf to work ball count needs to move to "ball 1" via trough switch

One of the relays listed in schematic at the score motor circuit is grounding the score motor. It could be the 1c switch on the motor itself. If not check why any relay listed is locked on, then find out why. Make sure reset relay is locked, if not figure out why. If no relays are energized (one listed with score motor switches) check them for a misaligned switch on one of them.

First, check the motor 1C switch stack to see if the motor runout switch is staying closed all the time. The motor runout switch is the one closest to the cam. Also check the switch solder lugs to see if they are mashed over and touching, and check to see if a wire has detached at the switch solder lugs and the loose wire end is touching the other lug.

If the runout switch at the motor 1C switch stack is opening as it should when the motor cam is in the home position, next you'll need to look at the schematic to see which relays have a switch on them that runs the motor. Check each relay to see if a motor run switch is always making contact. Adjust the switch so that it opens when the relay is not energized, and the score motor should stop running.

As always, it's good to tighten down the screws on the score motor and/or relay switch stacks before making any switch blade adjustments.

- TimMe

I've seen this exact same behavior when one of the score reel zero position switches looks closed but is not making good contact.

If that were the case on this machine, then the RESET COMPLETED relay would be latched, and the score motor switch on that relay would be the reason that the motor is running. However, Meegis says he has already checked the relay switches related to running the score motor, and they are all open.

- TimMe

I'm trying to think back a few months, I believe my Atlantis was doing the same type thing. My issue was caused by the "reset completed relay" down on the motor board. It had gotten out of adjustment somehow and it would not release. I adjusted the amount of friction on the plate and fixed it. This works sort of like a game over relay.

Thinking a bit more about it, I actually adjusted it so that the armature plate was closer to the end so that it would trip easier. It had nothing to do with the switches but the movement of the armature. Sorry if I'm being too confusing....Hopefully your Atlantis working. Great game!

I saw this topic anyone that can help with my atlantis is having a problem with it shutting off halfway thru the game. Lighrs all stay on but one second theyll be no sound or points scoring and then the next second it hits another target or something and it comes back to life. Was told that it is a fouled up 1c on the score motor. Can anyone tell me please where 1c is located and how to adjust it

A Google search of pinside for "motor 1C switch" yields this thread in which MarkG gives a nice guided tour of a Gottlieb score motor, its documentation, and switch 1C:

https://pinside.com/pinball/forum/topic/gottlieb-score-motor-stops-just-short-of-normal-stop