Lenovo schematic for board NM-A361, a 2.69 MB PDF with no model or revision stated in the name. NM-xxxx numbering belongs to LCFC, the Lenovo and Compal joint venture producing many IdeaPad and ThinkPad boards, and the number is printed on the PCB. The diagram is used to trace power rails, check the charger and power sequence, read EC signals and locate components near a short. Open it in any PDF reader and confirm the board number and revision on the PCB match before trusting 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 @generalschematics. 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.