Component name reference for the Samsung SM-A02S, delivered as a 3.66 MB PDF schematic document. It maps designators to their functions and locations, which makes it easier to identify capacitors, coils, ICs and connectors on the board when other circuit pages only give reference numbers. Technicians use it alongside the block schematics to find the right part before probing or replacing it. Any PDF reader opens it; zoom in for small labels and check that the board you hold matches this model before trusting placement information.
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 @phoneSchematics. 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.