(Topic ID: 297552)

STTNG phantom switch hits

By 22troy

2 years ago



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  • 5 posts
  • 3 Pinsiders participating
  • Latest reply 2 years ago by 22troy
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#1 2 years ago

My STTNG started acting up. Periodically it would award locks and mission starts in the middle of a game. In switch test nothing activates when beating on the playfield. I’ve switched out the trough opto boards and repinned the connectors. Also I installed a new Opto board and cleaned a lot of the optos. I’ve noticed that sometimes the ColorDmd will go out when the issues are occurring. I’m leaning towards a drop in voltage somewhere. Does anyone have any ideas of what this possibly could be?

#2 2 years ago

Unplug the color DMD and play blind. If the game works, you know you have a power issue. Get a separate power source for the color DMD.

LTG : )

#3 2 years ago
Quoted from 22troy:

I’ve noticed that sometimes the ColorDmd will go out when the issues are occurring. I’m leaning towards a drop in voltage somewhere. Does anyone have any ideas of what this possibly could be?

Thank you so much for including this information, without it you may have spent days following advice to troubleshoot your switch matrix.

Yep, your unregulated 12V is dropping; if you have a ton of mods sucking on 12V then that's probably the issue.

This is the entire unregulated 12 volt circuit: Yep 4 parts total and half of them aren't even needed for the game to work.
pasted_image (resized).pngpasted_image (resized).png

#4 2 years ago

Thank you guys. I just saw that it’s listed on the Colordmd website that this can be an issue. I don’t have a lot of mods though. Just the cannon laser kit, Colordmd, and the LED OCD boards for the GI and Inserts. If I’m reading this correctly I need to check BR5 and C30?

#5 2 years ago

I switched out BR5. I happened to have a extra new one. Didn’t have a C30, but reflowed. Fingers crossed. Thank you both for the help!

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