Boardview file in .cad format for Wistron board 13269-1. The name does not say which laptop model uses this board. Technicians open .cad boardviews in viewers such as FlexBV, OpenBoardView or BoardViewer to locate components, see part reference designators, follow nets between pins and find test points when chasing shorts or missing voltages. Wistron uses this five-digit numbering with a revision suffix. Confirm that the number printed on your PCB matches before trusting pin locations.
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 @ITHINKHS. Enginerys does not host this file.
How to open a .cad file
GenCAD text export, the usual format for Compal, Quanta, Wistron and Dell / HP / Lenovo laptop boards.