(Topic ID: 295393)

System 11/Fire! - Strange reset/MemProt Failure/

By Switch

2 years ago


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  • 17 posts
  • 6 Pinsiders participating
  • Latest reply 2 years ago by Pauz21
  • Topic is favorited by 1 Pinsider

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#5 2 years ago

My first thought was low 5v power with the mid game reset. Trying a different power supply board if you have one or have access to one. Definitely a CAP rebuild would not hurt.

One other thing I would HIGHLY recommend is to install fuse protection to your 2 B/R's. This is a known fire hazard if you get a short. System 11 Bullet proofing...

https://pinside.com/pinball/forum/topic/williams-system-11-bullet-proofing-thread#post-1211580

https://pinside.com/pinball/forum/topic/vids-guide-to-bulletproofing-williams-system-6/page/2#post-945742

#8 2 years ago
Quoted from Switch:

Sounds good! The U25 Ram is still soldered into the board. That's the reason I didn't go the NVRAM route in the first place. I don't mint soldering in components, but chips scare the crap outta me. I will get a new capacitor kit coming I think and just do them all throughout the game.

Thanks a ton for the links!!! This is probably my 5th or 6th system 11 that I've gone through and I was not aware of the issue with the B/Rs. I really appreciate it!! I was thinking the PS was dropping voltage during game play causing the reset. It sounds like you guys are thinking the same thing and the Caps would be the easiest culpret to take care of first anyways. Really just general maintenance on these old games and keeping it simple is always the way to start. I just wanted to make sure I wasn't having some signs of RAM failure or anything more serious.
Now what are your thoughts on just buying a new Xpin PS board Vs rebuilding the williams powersupply??? in the past espically on the arcade side of things I have had a pretty mixed bag when rebuilding old power supplies. Seems almost better to just get the newer board with better modern designs. What are your thoughts?
ebay.com link: itm

I replaced the PS in My High Speed - It was a good move. The background hum left with the old PS also.

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