(Topic ID: 316085)

TSPPP Switches not working in game but fine in test diag

By jrawlinson_2000

76 days ago



Topic Stats

  • 9 posts
  • 5 Pinsiders participating
  • Latest reply 75 days ago by barakandl
  • No one calls this topic a favorite

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#1 76 days ago

Very odd issue with my Simpsons Pinball Party.

I started a game and found that loads of switches were not registering, took off the glass and sure enough loads don't trigger, but a tiny amount do.
So put the game in diag mode for switches and they all checkout!

Start a game and again loads don't work, left outlane is ok, pops are ok, skate board is ok but that's about it.
Again put the game in diag mode for switches and all switches trigger when I touch them, even ran through coil test and all coils appear fine.

So why when playing a game do they not work but in diags they are fine>?

Any help appreciated.

#2 76 days ago

I just posted about this same problem I’m having in the TSPP thread.

Curious to hear what the fix is.

#3 76 days ago

I have had issues like this where the solution was either (1) the switch wire needed to be adjusted or (2) the cherry microswitch was just old or sticky and needed to be cleaned or replaced. In my cases it was the same deal - worked with in test mode but not gameplay. When the ball rolls over it’s different than when you press with finger. You can try putting a ball on the end of a magnet wand and pull it over switches manually to get a more realistic test, but even then the speed isn’t the same. It does seem odd that it is so many switches, though. In my case it was just a couple.

#4 76 days ago

This problem has peaked my curiosity, hopefully someone has an answer.

#5 76 days ago

Thanks for the help.

I have found the solution, took the batteries out with machine off so the game was 'reset' as a few folks had said and that has fixed the issue.
Lost my high scores etc but at least the game is now working again.

What an odd issue and fix....

#6 76 days ago
Quoted from jrawlinson_2000:

Thanks for the help.
I have found the solution, took the batteries out with machine off so the game was 'reset' as a few folks had said and that has fixed the issue.
Lost my high scores etc but at least the game is now working again.
What an odd issue and fix....

That is odd - I don’t understand how that could fix it. Root cause could be something else and somehow by messing around the cpu board it resolved. But glad your machine is working now.

#7 76 days ago
Quoted from jrawlinson_2000:

Thanks for the help.
I have found the solution, took the batteries out with machine off so the game was 'reset' as a few folks had said and that has fixed the issue.
Lost my high scores etc but at least the game is now working again.
What an odd issue and fix....

Well he was right! I pulled the battery on mine and they all started working again. I lost my scores and settings, but now the game works. Thanks to the person that recommended pulling the battery.

#8 75 days ago

Must be a bug in the code that crops up once in a blue moon, very odd though.

#9 75 days ago

Some erroneous value saved in ram must bug it out if removing the battery is a fix.

Why the memory corrupt could be a software issue or random hardware glitch at the wrong time. When the cpu jumps out of the software, the ram is often gets corrupt at the same time.

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