[SOLVED]820-00281-A 15" touchbar light water damage

[PhilipC]

I know its a longshot but does anyone know anything about these boards?

Very light water damage to about 5 spots on the board, nothing happens when plugged in with a genuine 87w-usbc charger.
tried measuring random things on the board nearly everything measures 0 except for a what looks to be a fuse under one of the usb-c ports which measures 5.2v

Measured all the corroded components and they seem to measure right.

 

[PhilipC]

No Title

pictures

 

[dukefawks]

Checked all rails for shorts? I'm more interested in what the affected areas look like after cleaning.

 

[PhilipC]

I dont know how to check the rails without brd and schematic. I did check the capacitors in the corroded areas and they weren't shorted.
I'll put it through UC and post pics

 

[dukefawks]

You need a .brd to measure on the coils for shorts?

 

[PhilipC]

UC seems to have cleared short on the board and is now getting vcore and measuring 20v on that white fuse but keyboard also has a short and when i plug it in it goes back to the 5.2v and no boot.

Cant seem to find replacement UK keyboard for the 2017 yet. Will the 2016 work? or does anyone know of a source

 

[dukefawks]

Does it even work without the keyboard? No idea if keyboards are the same.

 

[PhilipC]

Yeah works fine without the keyboard but the fans also plug into the keyboard now (thank you apple).

The keyboard in these are a big circuit board with about 6 IC's and a few components there was corrossion and a couple of traces corroded through, Fixed them with a jumper and now all is good.

Thanks for all your input.