Short code 36mb identifies this 86.7 KB PDF, listed among schematics, yet it names no model, manufacturer or board revision and looks more like a component series label. A document of this sort is generally read for pin identification, case style and limit values, which matters when sourcing a replacement or verifying a suspected failed part with a multimeter. It opens in any PDF viewer. Because a series prefix covers several variants, compare the exact marking on the physical part before relying on the figures inside.
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.