Boardview for the Lenovo U31-70 on Compal motherboard LA-C311P, packed in a 206 KB ZIP archive. Compal uses the LA-xxxxP numbering, which should match the code on the PCB silkscreen together with its revision. After extracting, open the file in a viewer such as OpenBoardView, FlexBV or Boardviewer to see component placement on both sides. It also shows net connectivity and test points, which is handy for locating a shorted capacitor, measuring rails and finding parts named in the schematic.
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 @cyberlanelectonik. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.