PV solar inverter internal comunication board burned

Thread Starter

alpignolo

Joined Nov 4, 2022
2
Hello,

I need to repair this PCB. Do you think this board can be repaired without having access to a diagram? From the image what components do you think are burned?

I'm a newbie, but where I live I cannot find any place where to repair circuits and I cannot have a replacement board because the supplier didn't answer me. So I would like to try repairing this by myself but I probably need some guidance :).

Any help would be really appreciated

IMG_20221104_153610.jpg
 

twohats

Joined Oct 28, 2015
362
Hello,
It doesn't look like a beginner project.
Do you know what made it fail?
There is a piece of something in your photo, close to CN10 socket, that doesn't belong.
As regards burning, the centre of the photo looks a little singed.
Good luck.............
 

Thread Starter

alpignolo

Joined Nov 4, 2022
2
Hello,
It doesn't look like a beginner project.
Do you know what made it fail?
There is a piece of something in your photo, close to CN10 socket, that doesn't belong.
As regards burning, the centre of the photo looks a little singed.
Good luck.............
I think it is because there was a wrong connection in the Bms port, instead of just canh and canl signal it was 24V input. If I am not wrong close CN10 there should be a rest of the glue that was melted on the board.
 
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