Circuit schematic for the Samsung SM-J320F handset, stored as a compact 1.63 MB PDF. Only the model number appears in the name; no board revision or region variant is given. Use it to follow voltage rails, look up component designators around the battery connector and charging circuit, and trace signals between the processor, memory and peripheral connectors when hunting a short or open line. Open it in any PDF viewer, and compare the board markings on the actual phone before relying on specific values or 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 @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.