Good day everyone,

Let me preface this with letting you know that I have a smalltime computer repair shop but do not have a lot of experience when it comes to board diagnostics. I am good at soldering etc but finding the issue if there isn't an obvious burnt component is not my strong suit.

The other day I got a customer come in with a macbook A1990 (motherboard 820-01814-A) that would not turn on and had previously been getting the warning message that the battery needed servicing. (Most folks seem to ignore that message, just like the check engine light in vehicles.)...

Good day everyone.
Got a dell latitude 5285 with motherboard version LA-D89 in the shop today which won't power on. So I opened her up, disconnected the battery and hooked up a charger to see if anything stands out on the board.
I was instantly greeted with the evil glow of a burnt component. Turns out that what looks like a mosfet with silkscreen marking U7 next to it has burnt out. Been looking for a schematic and boardview to check which component it is but have not been able to find one.
Anyone on here have the files laying around?