Samsung SM-A320F circuit schematic in PDF format, about 3.51 MB. No revision or additional variant info appears in the name beyond the model code. It is useful for following battery and PMIC power rails, examining charging and USB-C or USB connector circuitry, checking display and camera connectors and finding the components sharing a line that measures shorted. Open it with any PDF reader and use search for designators. Verify that the board being repaired is the SM-A320F version before relying on the drawings for component replacement.
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 @tamirat_moobile. 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.