A 104 KB PDF for the 2SC5261FT, sorted under schematics. JIS numbering identifies 2SC as an NPN bipolar transistor, and the FT suffix denotes a variant of the base 2SC5261, most plausibly a different package, though the name does not confirm what it stands for. Check the mechanical drawing against the footprint on the board before substituting the plain version. The ratings and pinout inside are what a repairer needs to test the device and choose a correct 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.