The above schematic arrows are incorrect. The 9 position switch on the ones reel only impacts the M relay when the 1s reel is carrying over to the 10s reel. There are a lot of 10 point scores which will not involve that circuit at all.

I am wrong here. That's what I get for reading a schematic on my phone. I thought your red line showed the 9 position switch was in the marked circuit and it isn't.

I'll pull my schematic later on and look it over. My apologies.

Since it works manually we can eliminate the EOS.

OK, let's dig into this further. What happens with the score reel when you hit a 50 point target, such as the snap targets, the fan targets, or the upper rollovers/lower rollovers when not lit for 500? It's not scoring those either?

What happens with the reel during game reset?

As I said above, I don't think your issue is with the EOS switch on the reel, because it would not work on a manual trigger of the M relay either.

It's possible you have a dirty EOS, and it's also possible that you have a gummed up coil sleeve on the reel itself. Also possible some adjustment needs to be done with the plunger on the reel. Because RG has a ton of 50 point scores on it, and really the only 10 point scores are the pop bumpers when lit, I'm interested in exactly what it is doing with 50 point scores.

OK, here's something to check.

You might have too strong a return spring on the relay armature. If that spring is too strong, it keeps the armature from being fully pulled against the coil, which keeps the switches from making good contact, which inhibits current going to the reel coil itself. I have had that happen where someone replaced the return spring.

If you have any spare springs around, try changing to a weaker spring and see if that does anything. Or just switch out the spring from another relay.

The fact that it is working ok when you manually press the armature in eliminates a lot of things, but it indicates to me that something is causing the armature plate from pulling in fully when the coil is trying to do the job itself.

The reel not resetting properly on reset though does seem to indicate some problem with the reel itself. Are you sure that the wireform is not causing too much pressure on the reel and inhibiting it from turning. That can happen when there is too much pressure from the switch blades onto the wireform that moves them. The fix is to adjust the switches so there is less pressure on them and thus less pressure on the wireform onto the reel.

Great. Now is the N working ok?

Could have also been the armature was a bit out of whack. But I have had that spring issue before.

Probably not, but never hurts to have stuff the way it should be.