Short PDF of 54.6 KB labelled 60HQ and indexed as a schematic. Apart from that series-style code, the name carries no device, brand, revision or version information. It probably covers a family of parts rather than a single board. Open it in any PDF viewer to see whether it holds a reference circuit, pin diagram or ratings table. Before using it to choose a substitute, confirm the exact suffix on the part you are working on, because suffixes often change voltage or current ratings.
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.