A schematic diagram for Lenovo hardware (board NM-D341). Shared as “www.DeviceDB.xyz_NM-D341 Rev 1.0_bv2.pdf” — a .pdf file, 233 KB.
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.
Any PDF readerSumatraPDFFirefox / ChromeFlexBV (links PDF to boardview)