Lenovo schematic in PDF for motherboard NM-E211, 2.42 MB. NM-xxxx numbers follow the pattern used by LCFC, the Lenovo affiliated ODM that designs many ThinkPad and IdeaPad boards. The name does not give the laptop model or revision, so check the title block inside. A schematic like this lets you trace power rails, follow enable and power-good signals, and find the parts behind a short. Confirm the NM-E211 marking and revision on the PCB before trusting component values.
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 @schematiclaptopramkushwaha. Enginerys does not host this file.
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.