Laptop MOSFET Repair/Replacement or is This Board Toast?
Hi, I was wondering if this is just a MOSFET issue or if the cpu (and therefore the whole board) is toast. I get a charge light and a blue light when I power it on, but no display. I removed the MOSFET that seemed to be the issue (some shorts disappeared) however I just checked some of the capacitors on the rest of the board and there are several capacitors where neither end is connected to ground (labelled “dead” in picture) and several more that are shorted all around and right behind the cpu. Is this something that is normal and/or fixable or is this now a scrap/parts board?
Thanks
Is this a good question?
2 Comments
@plmokni, Did you first test the MOSFET before removing, or just assume it was shorted? Do you have the schematics for this motherboard so you can check things? What is your experience level in reading and diagnosing circuits?
by Geir Ove Andersen
@geirandersen Capacitors were shorted around the MOSFET and it also got stupid hot. Once it was removed the shorts around it disappeared.
I've tried looking for a schematic but the acer aspire series seems to be a bit more difficult to find specific schematics for (or I'm just not looking in the right place)
I have no experience in reading circuits, I mostly worked on nintendo switches which generally are easy to diagnose without reading circuits.
by Steve Cheh