Network and RF section schematic for the Samsung SM-A23, a 2.78 MB PDF from a series of per-function sheets. It covers the cellular signal path, including transceiver, power amplifier modules, antenna switches and the related supply rails. Repair technicians use it to diagnose no service, weak signal or baseband problems by checking RF lines, antenna feed points and PA voltages. Because RF layouts can vary between regional SM-A23 builds, match the board and component markings before swapping parts.
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.