A 205 KB PDF bearing only the part number 2SC2710, catalogued as a schematic but most likely a component datasheet. The JIS standard assigns 2SC to NPN bipolar transistors. Package, ratings and maker are not stated in the name. During repair the document helps confirm lead order and maximum collector voltage and current, and helps evaluate substitutes when the original part is unavailable. Check the marking on the transistor against the sheet before ordering or soldering a 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.