(Topic ID: 228714)

Williams System 7 Black Knight, what is needed for game to start?


By cshelden

1 year ago



Topic Stats

  • 7 posts
  • 3 Pinsiders participating
  • Latest reply 1 year ago by cshelden
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#1 1 year ago

New to Williams and this Black Knight. Machine passes all diagnostics that are built in, credits set to zero for free play. However with 3 balls in the shoot it will not start, even with 4. It is in attract mode, however pushing the credit/start button does nothing. I've tested the credit start switch it registers when in Diagnostic 4-18 I can change the credit value which is now at 0.

Power on, goes into attract mode. Just won't begin a game. I'm stumped.

#2 1 year ago

Check your ballntrough switches. If the machine doesn’t see three balls in the trough, it won’t start.

#3 1 year ago

Are the Ball trough switch N.O. or N.C.? seems I read somewhere they should be one or other something was different about them.

#4 1 year ago

I have No clue what your talking about. Go into switch test and see if the switches are registering with each ball in the trough.

#5 1 year ago

Normally Open or Normally Closed.

I've not tested with balls in machine, will do.

#6 1 year ago

Just checking- you changed adjustment number 18 to zero?
The maximum credits adjustment.

#7 1 year ago

Resolved, feel dumb now. When PF was raised #20 Kickout switch would be closed with a ball sitting in it, but when lowered it was showing open. DPO had tried adjusting and the leaf was twisted. Removed and repaired, cleaned with a sheet of paper. All working now!

ryan1234 yup 4-18 set to zero, all good!

Still some work to dow with flippers but I have a rebuilt back box boards so it's coming along slowly.

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