A schematic diagram for Lenovo hardware (board DA0ST6MB6F0). Shared as “DA0ST6MB6F0 ST6 ideapad flex 14 LF14M.pdf” — a .pdf file, 1.57 MB.
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 @ShareMan_Electronic_Files. Enginerys does not host this file.
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.