Schematic archive for the Lenovo ThinkPad T480, board NM-B501, packed as a 4.39 MB RAR. LCFC uses NM-xxxx numbers for Lenovo boards, and the code is printed on the PCB for confirmation. The diagrams let you trace the charger and power circuits, check rail voltages and locate faulty components. The name gives no revision, so verify the sheets against your board. A matching boardview is helpful alongside it.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @fixtronix. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
7-ZipWinRARThe Unarchiver (macOS)