Schematic set in a 14.7 MB PDF for the Samsung Galaxy Alpha, model SM-G850F. The relatively large size suggests detailed circuit pages and possibly layout views of the main board. It is used for following power rails from the PMIC, diagnosing charging and boot failures, tracing display and camera connector pins, and finding test points during micro-soldering work. Open it in any PDF reader. Make sure the device label reads SM-G850F, as other regional variants of the Alpha may use a different 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 @Schematics_Mobile. 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.