Lenovo archive of 14.3 MB for LCFC board NM-E691, revision 1.0, used by the JY67L and JY67M projects. Separate schematic and boardview files for the same board also exist, so this bundle probably groups several resources. LCFC is the Lenovo-owned ODM numbering its boards NM-. Check that the NM-E691 and REV 1.0 markings match your PCB, then use the material for tracing power rails, finding test points and diagnosing shorts.
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 @ShareMan_Electronic_Files. 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)