When I first got it, it don't do anything. I replaced the burned out lock coil and the burned out score coil and now it does like it does in the video. The noise is the, out unit, strike unit and extra innings unit (red) and the mixer unit (blue) rotating in time to the score reset coil in the head. The big crazy switch thing to the right of the red circle also spins non stop, if you unplug the game at the right spot when you plug it back in it'll spin to the same spot and then stop. It doesn't do like in the video until you coin it up

I'm more of an arcade guy, this is my first em. The charm of em stuff is growing on me though.

I think I need to go through the score reels in the head, give em a good cleaning.

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Edit:

I got it in a trade from another arcade collector, I'm not sure about before that. It doesn't look like any work was ever done to it before I started on it. By the amount of dust and dirt dauber nests in it, I'd say it's been sitting in a shed for a while. It smells like dusty old church with a hint of old books.

My soldering skills are pretty good and I have a good iron, meter and desoldering station. I also have a good understanding of basic electronics

Second edit: (sorry)

The thing circled yellow spins non stop, not the thing next to the red circle

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I cleaned all four score wheels and the "grand slam" wheel per the website you posted, no change. I made sure the zero position switches and the nines switches were all operating correctly. I found a broken wire on the ones score reel on player two and repaired it, no change.

I did notice that the thing circled green twitches while it's doing what it does in the video. There's no label on the assembly so I'm not sure what it's for.

I thought maybe the burnt the hell up looking coil on the replay unit might be part of my problem but I can't quite figure out how to get it on free play.

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Double checked all the score reels, all good. They reset back to zero and stop.

Removed the playfied completely, cleaned the contacts on the score reset coil, no change. Thing circled yellow still spins non stop, score reset coil steadily clicks on and off, thing circled green twitches. If you unplug it mid cycle and then plug it back in the thing circled yellow will spin back to the home position and then stop. It doesn't get stuck in the reset cycle until you coin it up/hit the start button.

Set it to free play, unplugged the coin door, no change. I did notice that when you hit the start button the lock coil engages and the second coin relay and the out relay twitch while it's stuck in the loop.

I found a schematic and printed it out, hopefully that'll help me out.

If anyone needs a better quality copy, pm me your email and I'll send it to you

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I push the start button and the start relay turns on and stays on. The 2nd coin relay and the out relay turn on, latch and stay that way while twitching in beat to the control motor. The 25 cent, 10 cent and third out relay don't move at all.

All the switches in the control motor cams look to be in proper adjustment, they make and break contact as expected when I manually turn it and watch

The game over relay isn't stuck closed, it doesn't do anything when I try to start a game. If I manually latch it then start a game it unlatches itself. I'll check the switches when I have more time

Here's some pics that may or may not be helpful, let me know if you need clarification, different pics or different angles

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Sorry, while it's stuck in the loop I can trigger the game over relay and it'll stop and light up the first inning light. Then when I hit pitch, it'll spit a ball out and I can swing the bat. If I keep doing that I can manually make it score on the reels and it'll ding when I get a run.

Could the game over coil be bad? I happen to have a brand new one that I accidentally ordered a new one twice for another coil I replaced with the same numbers

I got excited and replaced the coil anyway, still stuck in the loop but will still start and play fine if I manually trigger the game over relay

I just noticed that after the third out the game over light doesn't come back on, it's on when you first plug it in. After the third out it acts the the game is over, no pitches, no bat and if you hit start the game goes back into the loop but still no game over light

I think this is my inning unit, it's the only stepper in the machine without a label and all the other ones are labeled something obviously not inning unit. All the other 5 switches check out. The switches in this are either both on or both off, not one or the other. Looks like somehow the spring came loose but when I wind it back up the switches are opened at zero and closed the rest of the time.

Now I'm starting to second guess weather this is the inning unit or not. The only other stepper remotely related to innings is the extra innings unit under the playfied, the bottom most of the red circle in my first post.

Maybe this is the grand slam unit and the regular innings are handled by the extra innings unit? This has 10 contacts (with wires attached), the same as the grand slam counter.

You can change the innings between 1 and 5, when I change the jumper to 3 innings I can play 3 innings before it stops without the game over light.

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The coil on the right steps it up and the coil on top releases it back down to the starting position. Somehow I must have knocked the spring loose from the pin it hooks to while cleaning the contacts.

When I get home tonight I'll take the blades off and snap a picture of the inside while I'm checking contacts and alignment

I verified that all six switches are closed but it's still not working right. Does that mean one of the wires going to the game over latch coil has something wrong with it? I attached a picture of the #5 switch stack, the switches look kinda wonky and I'm not sure about that piece of fish paper but the bottom switch definitely tests closed when it should be

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Individually at each switch. I'll test the black and white wire to yellow and see what the ohms are and start tracing wires and checking connections

I clipped my meter to the black and white wire on the game over relay and started checking each side of each switch in that line in order from closest to the relay to furthest. It turned out that the zero position switch on the player one tens unit looked like it was making contact but it really wasn't. I adjusted it while hooked up to my meter to make sure it made contact at zero and didn't the rest of the time and, SUCCESS!, no more loop. It started a game and I played a few.

I went to make a video to post but now when I press the pitch button nothing happens. When I press start, it starts a game and lights up the first player and number one inning lights but no pitch. If I press start again the light changes from "one can play" to "two can play" but still no pitch. If I manually trigger the pitch relay the pitch motor makes one revolution like its pitching. I verified that the pitch button is working with my meter. I've been looking at my schematics but I'm still a bit confused on what to check next

After I hit the start button and it's in a game and won't pitch, if I manually trigger any score targets or the strike switch behind the bat, nothing happens. If I trigger any out targets, it registers an out and after three outs that's it, the inning light goes off and ends the game

It was just a dirty contact on the #1 relay keeping it from pitching. I used what I learned earlier in this thread to read the schematics and follow along the line and find which switches needed to be checked.

The only thing that I can notice now is that it doesn't always register every out but I'm sure I can figure that out. Believe it or not, all the bulbs are original, I haven't replaced any and only a few are burned out.

Thank you everyone for all the help, I really appreciate it.

That ding when you score a run is so awesome, it's my favorite part.