Need help with Tempest problem after warm up

gabesdad1981

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So I plugged in my Tempest cabaret to take a few pics and play a couple games.....Monitor was nice and bright, sounds were good..After a round or two the game glitched up..Either a board problem or monitor issue..damn maze disapeared..on one screen there was just a big green triangle, on another there was just my character and no maze etc...What do you think is wrong? Board issue or what?

See pics...
 

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I know this one and Baby Pacman were nightmares to get repaired in the beginning.....I think you may be right though, my monitor seems rock solid..
 
When I had very similar issues with my upright it turned out to be badly worn pins on the edge connector. Some of them were almost worn through.

Rebuilt edge connector, and A/R II for good measure, and it's been rock solid ever since.
 
I've also seen that exact issue caused by cold solder joints on the pins for the board interconnect cable. Mine was so persistent that I ended up soldering the harness to the boards to solve it.
 
Hi all, I just bought this game from gabesdad1981, and can confirm what he's saying is happening.

I will change all of the edge pin connectors and re-do the interconnect cable too.

Stay tuned!
 
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