Spanish guide, 213 KB PDF, whose title translates as how to read Samsung firmware. No model or board is named, so it is a general how-to rather than a dump or schematic. Such guides usually explain firmware file naming, version codes or the tools used to read and flash a device. Before writing anything to a Samsung unit, confirm that the firmware matches the exact model and region, and back up the current contents, since a mismatched image can leave the device unbootable.
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 @canalesquematicos. 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.