Component name reference for the Samsung SM-A20S, distributed as a 4.63 MB PDF in the same schematic set. It identifies parts on the board by designation, helping link schematic references to physical locations. Repairers use such a page to find a specific capacitor, coil, IC or connector quickly before measuring or replacing it, and to cross-check the other SM-A20S section sheets. Open it in a PDF viewer and zoom in on the board area; make sure the board in hand is the same model before trusting positions.
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.