Circuit diagram for the Quanta R75 project, a 2.82 MB PDF with no brand, board number or revision in the name. Quanta usually marks its motherboards with a DA-prefixed number containing the project code, so check the PCB for R75 in that string before trusting the values. The schematic helps trace power rails from the adapter onward, verify signal paths between chips and connectors, and pin down parts linked to a short. Any PDF viewer handles it. Board revision differences can change part values.
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 @hrtechno. 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.