An archive of repair files. Shared as “Eletro-X_WAVEPOS-66 (J1900) (MPOS-J1900AS) (REV 1.02A).rar” — a .rar file, 2.99 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 @Satale_bios_esquemas_Laptop. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
7-ZipWinRARThe Unarchiver (macOS)