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(Topic ID: 267386)

Robo-war - Two solenoids not firing


By PinZombie

7 months ago



Topic Stats

  • 3 posts
  • 2 Pinsiders participating
  • Latest reply 7 months ago by PinZombie
  • Topic is favorited by 1 Pinsider

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#1 7 months ago

Hoping someone can guide me on how to fix this game as it’s great! Game has all backbox ground mods done by prior owner and is running the Swemmer MPU. (While researching current issues I see the transformer block grounding mods were not performed).

Game was running fine for several years except a rare issue with the single drop target bank not resetting; fixed by either pulling or pushing the assembly (can’t recall which) per the prior owner. This issue only happened 1-2 times for me in the past but now is a permanent problem. This drop target bank (1) won’t reset; the switch works as it adds score when knocked down and keeps adding it as it won’t reset. I tested the coil resistance and get 12.2 ohms, which I think means coil is OK. Coil won’t fire in Test mode either.

The other coil which is not working is the ball hole kicker; same thing - switch there works as it kicks out the second ball from the trough but the coil never fires to eject the ball (when it’s supposed to after hitting target under ramp). Coil also won’t work in Test but resistance reads at 12.5 ohms.

Any help is appreciated!

#2 7 months ago

most likely its a transistor, but not sure witch ones fire these particular coils, would be best if you had a manual to help.

#3 7 months ago

Yeah that’s what I’m leaning towards as well. I’m confused by the layout / architecture frankly; lots of satellite boards and some solenoids are fired by lamps or something??! Still trying to grok the manual I found online...

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