Samsung PDF of 9.57 MB described as A17 image, likely a board layout or picture-based diagram for a Galaxy A17 handset. The name gives no full model code, so check which variant it covers once opened. Layout images help locate components, connectors, filters and test points on dense phone boards when chasing charging, power or display faults. Compare it with the actual board and model suffix before replacing parts, since regional versions may use different layouts.
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 @canalesquematicos. 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.