Apple MacBook Pro A1708 logic board boardview for 820-00840, revision A, provided as a 620 KB .brd file. Apple numbers its logic boards with the 820-xxxxx format, so compare the number on the board itself before using the layout. The file can be opened in OpenBoardView, FlexBV or comparable boardview tools to search nets, find components by designator and highlight connected pins. It is handy when chasing a short on a power rail, checking the charging circuit or locating 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 @boardviews. Enginerys does not host this file.
How to open a .brd file
The most common boardview extension. Several unrelated formats share it, which is why one viewer opens a .brd and another refuses it.