Ms-16j91 Schematic !!link!!
A companion .CAD or .BRD file (often named MS-16J91.bd ) shows you exactly where PU8 sits on the physical motherboard – usually near the DC jack on the top side.
(GPU power) or main DC-in rails is a standard procedure for "dead" units. Schematic & Boardview Access ms-16j91 schematic
Using a multimeter, check pin 5 (VIN) of PU8 for 19V. Check pin 3 (EN) for 3.3V. If EN is missing, the EC is not booting, pointing to a BIOS or EC firmware issue. A companion
If you're interested in exploring the MS-16J91 schematic further, I recommend checking out online resources, such as: the EC is not booting
