A 308 KB PDF named after the 2SC2753 semiconductor and placed in the schematic section. The 2SC designation in the Japanese JIS scheme marks an NPN transistor, so the file most likely holds its datasheet. No maker, package or variant is stated in the name. For repair, the useful parts are the pin configuration, breakdown voltages, collector current and gain specifications. Use them to select an equivalent or to check readings taken with a multimeter. Confirm the body marking first.
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.