PDF schematic for the Lenovo E40 laptop, 1.38 MB, with a -1 suffix that suggests a duplicate of another copy of the same size. No board number appears in the name, so read the title block inside to find which design it covers. Opened in any PDF reader, the diagram helps trace power rails, find the components behind a short and understand the charging and power-on circuitry. Compare the board number on your PCB with the one in the document before working on the board.
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 @alischematics. 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.