(Topic ID: 260898)

1977 surf champ keeps adding bonus


By OhioELW

58 days ago



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  • 6 posts
  • 3 Pinsiders participating
  • Latest reply 57 days ago by OhioELW
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Surf Champ Bonus Relay (resized).jpg

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#2 58 days ago

There are a couple of switches on the Bonus Unit that should trip when the Bonus count reaches zero.
Surf Champ Bonus Relay (resized).jpg
One should let the K/Bonus Count relay relax and the other should fire the O/Outhole relay. Is your Bonus Unit reaching zero, and are those switches getting activated?

/Mark

#4 58 days ago

While a switch must appear to be closed to make an electrical connection, simply closing does not guarantee an electrical connection. If the contacts are dirty for example a closed switch will not conduct electricity. You could try cleaning the contacts of the lower Zero Position switch above (yellow-black wire to red-white wire) by putting a piece of paper or dollar bill between the contacts, gently pressing the contacts together and pulling the paper out. The first time you may get a grey line of soot on your paper. Repeat that 2-3 times until the paper comes clean.

If cleaning that switch doesn't get your K/Bonus Count relay to relax, check the On Subtract Bonus Unit switch above. It should open unless the Bonus Unit subtract arm is pulled in.

Does your O/Outhole relay fire? If not that could also be explained by dirty contacts on the upper Zero Position switch above (blue-white wire to green-black wire).

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