I have a question about the Dx relay, which turns on both in-lane "Adds Bonus When Lit" lights. I think it should trigger at ball 3.

At ball 4 the Ex relay activates and turns on two "Adds Bonus When Lit" lights. At ball 5 the Fx also turns on a light.

At ball 3, nothing. If I manually activate the Dx relay the in-lane lights go on as they should, but never in game play. (NOTE: The six alternating lights in three pairs on the right side work fine.)

My question: What triggers the Dx relay to activate? I've searched the schematics (I'm so-so fair at reading them) and couldn't find an answer. Is there a switch on a relay I should look at? Henry

That's all three switches on the Dx, 1 NO, 1 NC, 1 make-break.

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Thanks - the Ball # 3 light does come on when I'm playing ball 3. I'd figured that the Q Ax P were working because the Ex and Fx relays were working. That's what confused me. I'd pulled the Dx relay and checked and cleaned the switches. They do work - but only if the relay trips, which it doesn't...so I'm back to the start. I do see that there is the three ball-five ball Jones plug in the middle of all of this. I'd cleaned the male and female Jones plugs when I got the game, but will check now for continuity.

On the new snippet, the only other place I find the Dx is the Dx reset. Originally the Ax was not shutting off, score motor running non-stop, so I cleaned and gapped the GR-RED at the "O" relay which solved that. Also in the line is the Dx, but also the Ex and Fx which work, so that shouldn't be the problem.

I'll check the Jones plug and post what I find.

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Jones plug is good so I'm stumped. I could bend the Dx switches together and have the in-lane lights on all game, but I hate to give in.

The only thing I can add is that as soon as the game goes to ball 5 the Fx immediately kicks in and the light comes on.
When the game goes to ball 4 there is a 2-3-4 second delay, then I can hear the Ex click and the lights come on.
When the game goes to ball 3 the Dx never activates.

Not sure why the delay on ball 4 or if it's relevant, but suspicious since everything else seems to check out. A real mystery

Checked it, same ohms as Ex and Fx. Would have been an easy solution!

...and checked with a 9v battery and it clicks over.

Have not tried jumpers. I'm kind of new to this but have tried jumpers on other machines; not sure where to jump from, of course one end would go on the Dx solenoid post.

I have done similar on my other EMs. I this case I think I should go from the Dx relay to the Br-Red at the 8 -9 position on the player unit in the back box. Do that when the game is on ball two, then drain the ball so it goes to ball three and see if the Dx activates. Sound right? And thanks for your help so far. I've followed a lot of your posts, even for machines I don't have, just to pick up insights.

Forget the above. On the coil I want, an orange wire comes out to the Dx switch stack leaf and is NC with a red wire. The red wire goes to the 3 ball 5 ball Jones plug and has continuity. The wire comes out of the Jones plug as a green red that should go to the "O" relay. That does not show continuity. I'm not sure if that's the problem or if I've managed to get myself lost. Should I jumper from the "O" relay lug to the Dx coil? And should I have the game on and make it go from ball 2 to 3 while testing?

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Thanks Will try to find that path tomorrow

I'm feeling pretty lost. I looked at the player unit. There are two rivets on the outer ring of rivets that are hidden under the left part of the rotator (one is just barely showing on my photo.) I count them as 0 and 1, going clockwise, then keep going until I get to 8 which is brown red (rather faded so I'm not 100% on that.) I hooked up a jumper from that to the red wire lug on Dx relay, then started the game and advanced to ball 3. Add bonus ights did not come on.

Was I counting the rivets correctly? If so, is there a suggestion for a next step?

What Paulace wrote in post 4 makes me wonder if checking the other switches would prove anything.

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Paulace, everything you say makes sense, except one point that has always bothered me.

The snowshoes are not on position 8 at ball 3. In the photo at the Q-tip is where the snow shoe rests for ball one player one. There are five sets of double rivets (one for player one, the other for player two) Clockwise (and just showing) are two rivets for ball two. As shown in the photo the machine is now on ball three and the ball three light is lit. Next set of rivets is ball four, and the Ex lights come on, next set ball five and the Fx light comes on.

I'd say the rotating part with the snow shoes is out of position, but all the backglass lights for balls 1-5 come on at the proper time. Could it be out of position and turning it 120º would work? I don't see how. There are a PAIR of snow shoes at the left side of the rotator (including the one that runs along the outside ring of rivets), but I couldn't rotate 180º since it lock on with three screws 120º apart.

Um, I am very confused with what should be fairly simple. Guess that part of the fun of EMs. Should I try relocating the rotator 120º at a time and see what happens? Not difficult to do. But...the ball in play lights are correct and the Ex and Fx work as is.

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It's more than just off the rivets - the snow shoe on the bottom left of the photo should, if it has to touch outer ring rivet 8 on ball 3, should be in the upper right of the photo. That's so confusing since the ball count lights, Fx and Ex work. Can't quite figure that. Back at it tomorrow, I'll try the rotator at different position and put the results here.

May try that, but I'm new enough to this to be hesitant to take off more than the outer rotator. I'll look tomorrow.

Did try reattaching the rotator at 120º and 240º and that was just wrong so put it back where it was.

If I give up on this there are some other - maybe easier fixes to make. I've come a long way, was inoperable when I got it. Got the Ax to finally work, then figured out how to get the Ax to disengage. The spinner gave bonuses every spin. I'll start another thread for the issues remaining and work on the current one tomorrow.

Success...like you said it's good to take a break. And a seven mile walk. Didn't read your last post till now, hadn't been on Pinside all day.

What I found was continuity from the rivet at position 3 player unit up to the red brown wire on the edge of the player unit, through the 3/5 Jones plug up to the Dx switches right to the coil lug, When I was touching things I saw a hint of a spark between the switches feeding the coil, tried a 9v battery and hit and miss could get it to work. But I was now pretty sure power was getting up to the switch, not sure why the coil didn't do its job. Compared it to the Ex and Fx and the plate moved with more resistance as I latched and unlatched by hand. I put more tension on the spring that pulls in the plate and all is good.

Curriedog and Paulace, I thank you for sticking with me as I bumbled along. I found out how much I didn't know about EM's in the process. But my skills at jumpering are better - makes more sense now, maybe even a bit of understanding about schematics. I have a few more issues to deal with. The game is quite playable now, but I'll be back with another thread soon enough Henry

And by the way...

there was wiring that went from the 8-9 rivets to the disk face rivets that were contacted by the snowshoes at ball 3 position. Nice to have a dental mirror!