Service schematic in PDF form for the Samsung Galaxy A7 2018, model SM-A750F with the FN suffix. It lays out the phone's logic board circuits, so a technician can follow power rails from the PMIC, check charging and USB paths, and trace display, camera and RF lines when diagnosing a dead or partly working unit. Any PDF reader opens it, and searching the text for net names speeds up work. Confirm the model code on the device label, since regional variants of the A750 can differ in RF and SIM sections.
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 @smart_repair_phone. 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.