Catalogued as a schematic, this 49.4 KB PDF carries only the code 60LQ045 in its name, with no brand, device model or board revision. The token reads like a discrete power semiconductor part designation, and the small size points to a short data sheet or a single circuit page rather than a full board drawing. Any PDF viewer opens it. Read the first page before relying on it, and compare the part marking on the component you are replacing with the code shown in the document.
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.