Dead Macbook Pro Logic Board Diagnosis

 

Louis Rossmann shows us how he troubleshoots a Dead Macbook Pro Logic Board. He goes deep into the diagnosis using his microscope and a nice big monitor to nicely view the schematic. You can tell that he has been through this circuit many times since it seems to be a familiar as the back of his hand. 

“Here I diagnose a board that has issues on PP3V42_G3H which caused issues with the MCP, whose clock circuit is powered by PP3V42_G3H! I go through my diagnostic process and mindset, and follow from beginning to end as I resolve the problem.”