(Topic ID: 227193)

Switch Matrix Issue -- One switch triggers another (Bally 6803)


By Nokoro

2 years ago



Topic Stats

  • 14 posts
  • 6 Pinsiders participating
  • Latest reply 2 years ago by pellew
  • Topic is favorited by 2 Pinsiders

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#3 2 years ago

Replace the capacitors connected to some of the switches. Some of them were half broken on my special force. They act as a resistor when broken which makes the switch matrix act funny. The capacitors should be about 47 nF.

#14 2 years ago

Yes, it has to do with the order of the switches in the matrix and the fact that the capacitor has turned into a resistor/capacitor (my guess is due to ESD, long story short). If using a oscilloscope and probing the matrix it is possible to understand this. But it sure looks like gremlins until one fully understand the behaviour.

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