Filed under schematics, this 202 KB PDF carries only the code 20CJQ060, with no board, model or revision in the name. The code matches the International Rectifier style used for Schottky rectifiers, so the file is probably a part datasheet rather than a board diagram. Technicians open such PDFs in any viewer to read voltage and current ratings, the package outline and pin assignment when swapping a failed diode. Compare the code printed on the device body with this sheet before relying on it.
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 @cyberlanelectonik. 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.