I've almost got my aztec running. It's been stored in my decently dry basement for 20 years. I've messed with it off and on, never completely running well.

I recently cleaned all contacts and closed every relay by hand to see that the switches are at least close to making and breaking correctly. I cleaned the stepper units. But didn't tear them down because thy seem to function correctly and I'm scared to tear them down.

Now when I start the game, the coil relay pulses quickly, but does not stay in long enough to turn the score motor even one turn. It also latches the game over and pulses the reset relay. If I hold the coin relay in, the machine resets and usually starts a game. I see arcing in the switch that runs the score motor when I hold the coin rely in. I adjusted and cleaned the switch in case it was not making goo contact, but it stil arcs. Ii seems like my problem is the coin relay not staying in. I looked through the start up sequence and schematic, I just can't figure out what to go after.

Any suggestions?

Thanks,

Bob

Thanks for the help. I made some progress I think.

The switch on the cam was making, but it was bent way up, so I took the stack apart and straightened it some. Unfortunately, one of the bakelite spacers fell out and since I didn't take a picture first, I'm not sure I put It back in the right place.

Would anyone with an aztec be willing to post a picture of switch stack on cam 5 that shows the spacers?

The game is still not resetting, but I want to fix the spacer before I go much further.

Thanks for the picture. That's exactly what I needed.

I still have two problems that I can't shake down. They seem to be related, so I hope that they might share the same source.

1. the coin relay still does not stay in on reset. The score motor runs one revolution, counting down the score, but stops leaving the game partially reset. If I manually engage the coin relay, it stays in and the game resets. Everytiing from MarkG's schematic snap seems to look ok.

2. At the end of a reset cycle or end of ball bonus award, the bonus unit does not step back up to 5000. The coil twitches once per cam revolution, but does not stay on long enough to step the bonus up. If it let it run long enough, it frequently does step up and start the ball. If I manually step it up, the game immediately starts (or moves on to the next ball) During normal game play, the bonus unit steps up just fine.

Any thoughts?

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