Will add full update soon, one person suggested increased current or voltage as the issue and bad diode as result rather than the cause which I did end up seeing
I tested ohm readings compared to a known good power supply with a known good motor drive board. I marked bad components in blue, haven’t tested any capacitors just in-circuit ohm comparisons to skim through because time is somewhat limited but I will get to deeper testing. Testing with multimeter. Also removed couple bad resistors but haven’t tested them all. Decided to remove those rather than mark them. I have a good board for reference so I’m good to remove the bad ones.
I did create a thread on a Facebook group that’s got some big brains, I’m going to try to summarize what everyone suggested and what we figured out when I log back on here tomorrow or next day but I will say this, zener is an assumption. Might be schottky or regular diode. I think zener was my first choice for the prevalence in power supply circuits that I was finding online, but my search was biased so could be mislead. Thanks for all suggestions, talk soon
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