The base 16TTS document, a 93.7 KB PDF indexed as a schematic, identifies no laptop model, board number or revision. Its code resembles International Rectifier thyristor part numbering, so it is most likely the datasheet for the standard version of that series, with related suffixed variants documented separately. Open it in any PDF viewer to check voltage and current limits, gate trigger values and the package drawing, and compare the full marking on the faulty part before choosing a 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.