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(Topic ID: 261477)

Tech: Mata Hari occasionally skipping awarding points for bonus

By creech927

9 months ago

Topic Stats

  • 3 posts
  • 2 Pinsiders participating
  • Latest reply 9 months ago by mrm_4
  • Topic is favorited by 1 Pinsider


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#1 9 months ago

Hi folks,

I've got a Mata Hari I've been working on and have a strange problem. Very occasionally (like once in every 20 or so games) the game will fail to award bonus points when the ball ends. It cycles through the count down of whatever bonus was earned during play, but doesn't sound the chimes or award points. It looks just like how the game behaves when it tilts, but the tilt light is not lit when it does this. I've confirmed that none of the tilt switches are enabled, and there doesn't seem to be any pattern of input when the failure occurs.

Any idea why I'm not getting my bonus when I should?

Game has an Alltek MPU. Plays fine otherwise.

#2 9 months ago

I had a weird problem where any time I hit the saucer the game would end like a slam tilt.

Found that the coil wire in the saucer was touching the housing and shorting out the whole matrix.

Where I’m going with this is try checking all coils associated with any switch along the bottom row and check all wiring for that row and the tilt. There’s probably something touching something else it’s not supposed to. I’d look for obvious stuff like that before the other guys show up and start telling you buy a logic probe and learn quantum physics
1D4AB27E-9D30-4C9A-AAC5-75AAF100C06B (resized).jpeg

That little red wire on the right caused me head aches for over a week. 6E84013D-7ED1-4C43-817E-54999A927F80 (resized).jpeg

#3 9 months ago

You ever track down the gremlin?

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