An archive of repair files for Sony hardware. Shared as “VS.T53U21.2_1920x1080_Sony.7z” — a .7z file, 3.04 MB.
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 @led_software. Enginerys does not host this file.
How to open a .7z file
High-ratio compressed archive, often used for large BIOS collections.
7-ZipWinRARKeka (macOS)