PDF document, 124 KB, named for the 2SC5886 part, an NPN bipolar transistor by its 2SC prefix. The name gives nothing beyond the number, so manufacturer, package and revision are unknown, and although filed as a schematic it is most likely a datasheet. Use a PDF viewer to read pinout, maximum collector voltage and current and the package outline. When a transistor of this type fails short, compare the board marking with this sheet and confirm footprint compatibility before fitting any replacement.
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.