I know it's a goner.
I know it's a goner.
It failed during testing and appears non-repairable. If possible, it might not be fixable.
He has fixed more complicated issues than this, I believe. The expertise required is far beyond what anyone can easily explain online.
Ouch! There's a reason the part failed and unless you take away that reason, any new replacement part will also fail. So IMO it's indeed done for and on its way to the recycling bin. The fact you're asking about it gives me reasons to believe you can't repair it on your own.