Lenovo F41 notebook schematic in PDF form, 1.18 MB in size. The file name names only the model, without a board number, ODM or revision, so those details must be checked in the title block on the pages. A drawing like this is useful for tracing supply rails, checking the charging circuit, following the power-up sequence and finding the components linked to a short or a missing voltage. Any PDF reader opens it. Compare the board number printed on the PCB with the document before relying on part references or test points.
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 @schematicslaptop. 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.