Covering the 2SC5416LS, this 43.0 KB PDF is the LS variant of the 2SC5416, which is documented in a companion file. It is listed as a schematic, but 2SC follows Japanese JIS transistor numbering for NPN devices, generally high-frequency, so expect a datasheet. Use it for pinout, package outline and ratings when testing or replacing the part. Since suffixes can change package or lead configuration, compare against the base sheet and confirm the marking on the board component.
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.