Second copy of documentation for the 2SK2887, a 139 KB PDF listed under schematics, with the part number written in lower case and no other information in the name. The 2SK prefix in Japanese JIS/JEITA numbering marks an N-channel field-effect transistor. Technicians refer to such a datasheet for pin assignment, voltage and current limits and gate characteristics when diagnosing a failed switching stage. Because a similar file exists with a 1-5 suffix, compare both and use the more complete one; always match the package marking.
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.