Datasheet for the STR-S6707, as named, a single 163 KB PDF. STR-series parts from Sanken are hybrid switching power supply regulators found in the primary side of older TVs, monitors and similar equipment. A technician uses the document for the pinout, internal block diagram, typical application circuit and electrical ratings, which help when checking a dead power supply or choosing a substitute. Compare the exact part marking on the component with the datasheet title, as similar numbers in the family can differ in pinout.
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 @datasheets0. 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.