Small 31.3 KB PDF covering the 2SC5265LS, filed as a schematic. The 2SC prefix in the JIS system identifies an NPN bipolar transistor, and the LS suffix marks a variant of the base 2SC5265, most likely a different package or lead style, though the name does not define it. Because suffixed versions can differ mechanically, check the case shape and terminal order in the drawing against the part on the board. Use the ratings listed to confirm any replacement is at least equivalent before soldering it in.
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.