(Topic ID: 233255)

New Black Knight owner-- ISO troubleshooting advice

By Mcchris

5 years ago


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Topic Stats

  • 16 posts
  • 7 Pinsiders participating
  • Latest reply 5 years ago by northvibe
  • Topic is favorited by 3 Pinsiders

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#2 5 years ago

If things get stronger or weaker over time capacitors are always the first suspect.

#4 5 years ago
Quoted from Schwaggs:

If the EOS isn't opening at full flipper stroke, the high power coil will stay energized, overheating the coil making things bind up. Next time your flippers get weak, turn off the game, raise the PF and feel the flipper coils to see if they are hot. Adjust the EOS so it is gaped 1/16" at full stroke. Do not measure by pushing the flipper bat, but by pushing on the pawl into the coil.

I've never played an 80s Williams where the flippers didn't get hot after a while

3 weeks later
#6 5 years ago

There's a separate pin on 2j12 going through a separate contact on the flipper relay and down through the playfield connector for each side's flippers.

#8 5 years ago
Quoted from frunch:

I find new switches may need a little filing to get them working properly.

New eos often have a protective coating on them. File or use alcohol, etc to remove it. You'll see the resistance over the contacts drop.

#13 5 years ago
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#15 5 years ago

I'd reflow every header pin on any board you take out of the machine. System 7s seems to always have bad solder joints.

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