Hey guys, just troubleshooting a MacBook Pro A2289 with the 820-01987 logic board.

No fan spin, no booting, device not getting detected by the Apple Configurator.

Did a few basic things, the board gets to 20V USB supply according to my USB tester, F7000 fuse seem to be ok and not blown.

Board draws about 0.5A for about 10 seconds, after that it goes down to 0V. Found an n channel FET (Q4830) in the backlight supply(?) that could to be blown (pictures below), not quite sure about that, but t assume that should not be relevant, because I was testing the board...

Hey guys, guess it's time to introduce myself.

My name is Alex, I'm 20 years old and I'm from Austria.


Some might call my occupational history quirky which I think is quite understandable.

I studied Electrical Engineering at a college in Austria with my main focus being microelectronics, embedded systems development and coding (basically just embedded systems programming, so basically C and C++). In Austria we have a very specific school type, which is really unique. It's the so called HTL. The American equivalent to the "HTL" would be...