The EC controls all power sequencing. The schematic will show you:
If you confirm the (e.g., Lenovo Legion Y540-15IRH), I can provide: la-h182p schematic
Cleaning and repairing corroded traces by following the schematic's connection paths. Where to Find the Schematic and Boardview schematics|boardviews| ARCHIVE – Telegram The EC controls all power sequencing
Technicians use this section to identify short circuits. If a MOSFET is shorted, the schematic provides the part number and the surrounding circuit logic to determine if the fault lies in the MOSFET itself or the driving controller. Lenovo Legion Y540-15IRH)
: The design includes paths for both Integrated Graphics (UMA) and Discrete GPUs like the NVIDIA MX150 or the workstation-class Quadro P620 The Power Map
Features two DDR4 SO-DIMM slots, supporting speeds of 2400/2667 MHz.