(Topic ID: 288864)

"Blackout" Lane change locks up game

By rotormoshun

1 year ago



Topic Stats

  • 7 posts
  • 2 Pinsiders participating
  • Latest reply 1 year ago by rotormoshun
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#1 1 year ago

have a Williams Blackout and when start a game and Press the right flipper (just once) it will make a "joust sound" from the sound board and then lock up all the playfield. The flippers still work but nothing else does.

If I unsolder the diode on the right flipper then the game all plays great (left and right flipper function normally). But of course I do not have any lane change on the right flipper.

I have swapped a good MPU board in thinking that was it (it was not) , where else should I look?

P.S. The Diode seems to test "good"

#2 1 year ago

Does it also go dead with the diode connected but you only activate the lane change switch or the flipper mech manually without firing the flipper?

#3 1 year ago

Correct, it goes "dead" even if I manually (with diode connected) and I close the "lane switch" without activating the right flipper.

What direction do you have for me please?

#4 1 year ago

Verify that none of the wires or wire attachment lugs on that switch stack (EOS and lane change switches) are touching and shorting to one another.

Was the lane change working fine for you earlier and then this issue popped up later?

#5 1 year ago

I have verified that they are not touching. Yes the machine was working great (even with lane change) and then this issue appeared. Any chance its an issue on the driver board?

#6 1 year ago

Well I narrowed it down to the driver board. I put my Firepower driver board into the Blackout and it works now. However I would like to fix the Blackout Driver board. I don't know what part of the board would be suspect to the failure. Is there a mapping of what does what on the driver board?

#7 1 year ago

Posting solution. I tracked down the schematics and traced it to a bad hex inverter on Driver board. Replaced it and now 100 percent. Thank you for all your help.

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