(Topic ID: 232495)

Spirit of 76 - B and D Rollovers trigger at same time?

By lilmul123

5 years ago



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  • 2 Pinsiders participating
  • Latest reply 5 years ago by lilmul123
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Pioneer 3-5 ball adjust (resized).jpg

#1 5 years ago

Hi all,

I have a Spirit of 76 that has been working great up until recently. I’m not sure if it’s related, but a couple of weeks ago, I added some spare LED 44’s into various areas of the game. After that, I noticed that whenever the B or D rollovers would be triggered, their lights would go out at the same time (e.g., if B was rolled over, the B and D lights would go out, and vice versa). Looking underneath, sure enough, the B and D rollover relays engage when the rollovers are triggered. As a sanity check, I swapped all the LEDs back to incandescents, but it doesn’t seem to have made a difference.

I just recalled that I also changed the game from five ball to three ball configuration recently, but I’m not sure if that might have made a difference.

Before I deep dive into the schematic, does anyone have any idea why this might be happening? Did I maybe short something somewhere? Can anyone offer some potential troubleshooting advice?

#2 5 years ago

Hm. After remembering that I changed the five ball to three ball setting, I now notice that it does not happen on five ball mode, but does happen on three ball mode. Is it actually designed to do this? O.o

#3 5 years ago

The schematic for Pioneer shows that in 3 ball mode the B and D rollovers are wired together so you always get both if either is tripped.
Pioneer 3-5 ball adjust (resized).jpgPioneer 3-5 ball adjust (resized).jpg
I'm pretty sure your '76 schematic would show the same. It's a way the game compensates for the shorter game by making the goals a little easier to achieve.

/Mark

#4 5 years ago

Yep, just checked my schematic, and it is indeed the same way. Can’t believe I missed that. Thanks!

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