(Topic ID: 223371)

Gottlieb Premier System 3 CPU for Cue Ball Wizard Chip: 74HC123

By dogman1

5 years ago



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  • 2 Pinsiders participating
  • Latest reply 5 years ago by dogman1
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#2 5 years ago

It will work but FIRST replace both 1uF caps C20 and 21 before replacing the HC123. Most of the times these are the culprit when having problems with the watchdog.

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