Hello all,
I bought yesterday a project from somebody else who burned is battery and inverter. I will make a post about it soon in projects section.
I opened the inverter today. Propably most dirtiest board you ever saw. I still gave it a try. Cleaned everything, 5V power supply looked blown so I unsoldered it and gave it external 5V. This gave me no voltage on 3.3V , so I unsoldered 3.3V as well and put 3.3V from external source.
Led 2 came to life followed by some smoke from the microcontroller. Led 1 lits up a little bit. Before the micro looked quite good.
I still have the hope to refurbish it. But something made the micro smoke. Do you have any idea on wich line to look for the short?
Harvested SDU Board
Harvested SDU Board
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catphish
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Re: Harvested SDU Board
I don't like waste, but there's no way I'd consider reusing any of those parts after a fire like that. As for the STM32, it's hard to guess whether the chip was heat damaged internally, or whether it failed because of a short circuit on one of its outputs somewhere else on the board.
Put it in the bin and build a new one.
Put it in the bin and build a new one.