Schematic section for the LG G5 smartphone covering the network or RF part of the circuit, according to its title. A PDF like this helps trace no-signal, no-service or baseband faults by showing the transceiver, power amplifiers, antenna switches and their supply lines. It is a single section, not a full service manual, so pair it with the complete phone schematic for power rails. Variants for different regions may use different RF parts, so confirm the model code on the board.
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 @schematic_mobile5. 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.