Datasheet PDF for the 2N7002, with an r2 tag in the name that most likely marks the second revision of the document; size 94.4 KB, listed in the schematic category. The 2N7002 is widely known as a small-signal N-channel MOSFET commonly found in surface-mount form on laptop and desktop boards as a level shifter or switch. Check pin order, gate threshold and drain current limits here before swapping, and confirm the SMD marking code on the board matches the one shown.
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.