Haha, I did the EXACT same thing on my (original 2006) macbook, 14 months owning it. My power supply died, so I clipped the cable, hooked it up to a 1A 18V variable power supply, but it wasn't charging fast enough, so I hooked it up to another that was apparently broke and sent 120V to my laptop (people at work don't throw broken things away apparently)
Anyways, I had experience soldering SMDs before so I wasn't too worried about the repair, but there were too many power mosfets and diodes and and a ton of devices at the same potential. Testing voltages and continuity with my multimeter was mostly futile (and I used datasheets the entire time). I'm glad you found the problem.
Anyways, I had experience soldering SMDs before so I wasn't too worried about the repair, but there were too many power mosfets and diodes and and a ton of devices at the same potential. Testing voltages and continuity with my multimeter was mostly futile (and I used datasheets the entire time). I'm glad you found the problem.