So i got readings for voltages and continuity all across the motherboard, both from the dc input to resistors etc, and from the power button to resistors etc, i got readings for both voltage and continuity, and have tested repeatedly over a few days. There was just one issue i detected:
When probing voltage between the dc input jack on the laptop and the dc output jack on the motherboard, i see sparks when pressing the black tip against the output jacks pins and the mm readings jump all over. This happens each time on that component, making me hopeful i might only need a new dc jack and not a new motherboard.. Testing voltage and continuity from the dc jack on the motherboard to the rest of the motherboard yields stable readings however.
im not positive that i didnt skip testing some important component for voltage, but noticed no dead spots or area on the motherboard. Someone with a bit of experience who could give some feedback on what those sparks and jumping values on the multimeter mean? (again only between the dc jacks input and output)
Edit; should add that the laptop failed after the original adapter got fried from sparks at the receptacle. A new adapter didn’t solve the problem.
Edited by cumputer, 10 May 2018 - 04:27 PM.