Boardview in BRD format for board number 14278-2, compressed into an 85.0 KB ZIP; no laptop brand or model is given in the name. Five-digit numbers with a dash revision such as this follow the Wistron numbering scheme, a manufacturer that builds boards for several notebook brands. The file shows part placement, net names and test points, and opens in tools like OpenBoardView or FlexBV. Confirm the number and revision suffix printed on your PCB match exactly before using it to trace a short or locate components.
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 @notebookschematic. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.