820-00840-a

[pws6074]

Water damage, very small, however, the motherboard looks dead.
Top of it, i don't have the schematics and boardview for this MB. Can you guys help me out?

Thank you

 

[larossmann]

We can't really distribute schematics here, Apple already breathes down our neck.

This would be same as anything else, need info on which power rails are present and which aren't to go forward.

 

[pws6074]

Yes, i know, but i don't have idea without schematics

 

[2informaticos]

Did you search with Google?
Use similar schematic for the chips you find on your board.
Compare boardview from other boards, if available...

 

[pws6074]

I bought the board view today and the PDF.
The motherboard was dead because has a short to ground on PPBUS_G3H rail.
I just inject some power on that rail and C6622 gets really hot. So I replaced and everything works fine.

Thank you larossmann for all your help.