Boardview for an Acer laptop built on the Quanta ZGR board, part number DAZGRMB2AC0, in a compact 220 KB RAR archive. A boardview maps component placement, part designators, nets and test points, so a technician can trace a power rail or locate the source of a short without the full schematic open. Files like this open in viewers such as OpenBoardView, FlexBV or Boardviewer. In Quanta numbering the DA prefix and project letters identify the PCB, and the final characters mark the revision, so check the board.
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 @schematiclaptopramkushwaha. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.