(Topic ID: 137057)

Williams System 7 Repair Help

By Jhuoho

8 years ago


Topic Heartbeat

Topic Stats

  • 43 posts
  • 11 Pinsiders participating
  • Latest reply 7 years ago by mof
  • Topic is favorited by 9 Pinsiders

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#25 8 years ago

Long thread and haven't read through it closely but I suspect the 5v power supply. If it is noisy you can measure 5v with meter but the cpu still won't like it. I had a firepower once that would only turn on gi. The test point showed 5v but when I put an o-scope on it .. It was a mess of a signal. Replaced 5v parts and booted right up.
Good luck
Tim

#26 8 years ago

Also, if you can burn a eeprom I can email you code that will count up from 0 to 9 on the mpu 8-segment led. That will tell you if your mpu is booting correctly.
Tim

#29 8 years ago

Ok, it's booting. Sorry for the misdirection.

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