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Hi everyone, 
 
I manage to repair an old orangepi PC which I 've use for a student project few years ago. 
It has been plugged with an PC charger (20v) and made some sparks  ... 
 
So now there is a short circuit between gnd and 5v ( not with the 3.3v),  
 
I tried to find in the datasheet and shematics of Opi pc some chip which manage manage power and didn't find clues. 
(https://drive.google.com/drive/folders/15mEts8a25LsMFYWhJA54x8AtQ-DWJYqf) 
 
I tried to change with sucess the D36 diode (1N5819) which appears shortcircuited but that was not that. 
 
I search on the power section but I imagine if the problem is outthere, it will be difficult to repair.. 
 
Someone has ever be confronted with this type of power issue ?  
 
Thanks for any help   ! 
 
Natacha 
 
 
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