Likely murdered my 5v/3.3v
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Hi There!
I came back to my shop and found that one of my duet boards had its 5v buck that was piped into 5v ext on the duet go to 7.5v, which melted the pi as well.
Anyways, one PI and a proper 5v supply later, and the duet connects back to the pi without issue. I can see temperatures of all of the sensors, but when i try to activate anything, (fan, heater) nothing happens.
All 4 power lights are lit.
I ohmed out the VSSA fuse and its not conductive/connected
I've since jumped out the VSSA fuse but without luck to get any of my outputs to re-enable.
Have i killed my board with a bad 5v buck?
Luke
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@Luke-sLaboratory fans and heaters have 5V buffer ICs before the FETs which may well have been fried as well.
You can test by turning on a fan an probing the input and output pins on the buffer. You may see the state switch on the input and not the output.
