Quoted from Mickpat:I replaced the old driver board with a new driver board from https://pinballbasement.com/.
I did notice the old board had the https://kahr.us power reset fix chip installed. Since the board is new, I removed it. Should I just keep it in? The new board has updated 5v circuits so hoping this is no longer an issue.
Any ideas on what to do with the old board?
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If you have a good board you do not need that kahr fix so leave it out. Send the old board out for repair so you have an extra if and when you need one.