Gottlieb Solar City Alternating Relay


By jackblotto

10 months ago


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  • Latest reply 9 months ago by jackblotto
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#1 10 months ago

Another pin that is almost 100% working, but have some demons to track down still. Right now I'm trying to figure out how to get the 500/5000 points roll-over switching to work correctly. At the top right the are 2 lanes that work together and then the lower left and right outlanes work together sort-of. If the light is lit you get 5000 and if not 500. The scoring works for all the lane switches finally. But the scoring between 500 & 5000 is supposed to alternate between lanes after rolling over the switches from the way I understand it. There is a Relay "A" on the underside of the playfield that seems to control the light and the scoring for this function. If I engaged the relay, hold it in, the lights and scoring switches to one lane and if I don't do anything the light and scoring is in the other lane. What doesn't seem to be happening though is the Relay never engages on it's own. There is a coil on the relay and maybe it's bad, need to check that next. Not sure after the coil though what could be happening. The is a switch on the Motor and the A Relay seems to connect to a switch at position 2C. Hard to get at that switch, wondering whether that would be the next place to look after checking the coil or somewhere else?

Ideas?

Thanks

#4 10 months ago

First off, let me say that my lack of knowledge is clearly showing here again I suspect.

The A relay has multiple switches on it, as I recall 4. I think 2 go to the top two inlanes and the other 2 go to the bottom 2 outlanes.

Let me take a look at the FS relay. What and where is the "'5 pos.sequence completed switch' at the 5-bank"? I saw the switch call-out too but am not sure what/where that is.

WRT to the jumping from the 25V fuse, I always am fearful of jumping coils. Can you explain that a little better for me? Are you simply saying while the game is on, touch one end of a wire to the 25V fuse and touch the other end of it to that lug on the coil to see if it energizes?

Also, you both mention the "switch inside" the relay. What do you mean by that? There are switches as part of the relay, but what whats is considered "inside"?

THANKS

#6 10 months ago

Sweet, thanks the info and pics Jeff! Just got my son home, so probably will not get back to this until late tonight or tomorrow, unless I can sneak off for a little. Will be back right after that though with status.

R/ David

#7 10 months ago

Well, couldn't stand not taking a look right away. Tested the coil, works fine. Checked out the 5 pos switch stack, think that was good though I did adjust a little. Checked out the FS Relay, kinda dirty, cleaned the wafer board (terminology?) a little bit not much else. Noticed the wiring had been worked on. Started the game and the alternating bonus was working, kinda on and off. The "A" Relay seemed to be functioning, at least I saw the coil working now. Alternating got worse though. Pulled the FS Relay off the holder and tapped it while trying to make the bonus alternate. I could here the relay click and the bonus would alternate. Going to adjust and clean the switches and the fingers and wafer board on the FS Relay a bit next. That seems to be the problem.

Report back soon.

Thanks

#8 10 months ago

Jeff, what causes the FS Relay to run? After doing a few things to it, like adjusting the switches you mention above, seems like it never runs. Ideas on that? What's weird is when the 5-bank gets knocked down the bonus moves to a different lane, when it does that I see the "A" relay run. According to the above portion of the schematic the FS Relay must be running I just am not seeing it since it is part of what makes the "A" relay run too. But it still won't alternate each time the ball goes through the lanes. Seems like it worked for a few minutes earlier today though. Maybe I'm not understanding how it should work.

Taking a break to clear my head. So close I think!

Thanks

#12 10 months ago

Tried to adjust the FS relay a number of times, cleaned it etc. Even tried putting a fresh spring on it, which helped a little. Think the problem is that white plastic cog is worn out. One of the things they call out in that thread above, thanks for that too as it will be ncie to have. Going to order what new parts I can get from Steve/PBR and just rebuild. Looks like everything else is working now at least until I find something else.

Will report back once I get some parts and rebuild the relay.

Thanks Jeff, you're more than welcome to drop down sometime and check out my little collection. I'm in Manassas but on the eastern side, only about 6 miles from I95.

R/ David

#14 10 months ago

I will try the superlube, thought about that but didn't do it. May trade you too as it really does sound like these things are tough to adjust just right. Thanks!

#16 9 months ago

Ok, well it looks like this FS Relay and "A" (alternate) Relay are working now. Will put some games on it to see if the adjustments and cleaning hold up. Like you'll said, that thing is quite finicky.

Have a couple of other gremlins I need to work on so might be posting those to a separate thread if not ironed out shortly.

It seems like reading the schematics correctly and understanding what it showing is still not (and may never be) a strong suit for me. Some of the logic of why circuits go this way and that, from one relay to a switch to another relay or switch stack that is being used for some completely different bonus or scoring or whatever just eludes me still.

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