(Topic ID: 239685)

Major CPU Board Repair on Williams High Speed

By Dennis33

4 years ago


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  • 116 posts
  • 17 Pinsiders participating
  • Latest reply 4 years ago by cjchand
  • Topic is favorited by 7 Pinsiders

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#90 4 years ago
Quoted from Dennis33:

Wait! If the top orange wires need to pass thru unfused, shouldn't the top plug be reversed too? Changing just the bottom doesn't change the path from the top into the solenoid board (thru the fuses).

you have your 1 and only header on the wrong end of the board, eg currently the header is on the output not the input. That's why your wiring is out.

#92 4 years ago

Just install another header pin. Currently your input is on your output which is why your wiring is all wrong.

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#105 4 years ago

disconnect the coin door and jumper the pins on the mpu to test

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