I have a Space Odyssey I picked up with a bunch of issues, most of them related to a worn out clutch on the score motor. If you ever need a replacement armature spring, the spring from a ballpoint pen is a great substitute! I now have it about 95% functional with a few lingering minor scoring issues, I'm just not familiar enough with the intended functioning to wrap these up.

> The upper left/right rollover lanes are supposed to light at certain points and score the swinging target value. Right now these don't ever light, but I'm not sure what should trigger them in order to diagnose the issue. Presumably something to do with the swinging target...

> Once A, B, and C are all lit, this causes the special in one of the outlanes to light. However, rolling over the outlane currently does nothing when special is lit. What is supposed to happen and what should cause the special to alternate between outlanes?

So the change relay is controlled by the match unit. Makes sense--my match unit isn't working right now and I hadn't bothered troubleshooting it since the machine was going to be setup as freeplay. I'll delve into that a little more when I get a chance. Thanks.