(Topic ID: 298985)

Ni-Wumpf Driver | H2 is Ground? & Additional Question

By Green5

3 months ago



Topic Stats

  • 2 posts
  • 2 Pinsiders participating
  • Latest reply 3 months ago by Cheddar
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#1 3 months ago

The Ni-Wumpf drive board for Gottlieb System 80 games. the H2 screw in contact is a ground that should be grounded prior to powering on for the first time, right?

Also, safe to run if the Speech Sound board is not hooked up?

#2 3 months ago

H2 Ground should be hooked up. It's a safety measure in case the ground between the mpu and driver is bad. Yes you can run it without the sound board

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