Boardview in TVW format for the LCFC-made Lenovo mainboard NM-C372, revision R03, packed in a 1.26 MB zip. TVW files come from Teboview-style tools and open in TVW-capable viewers. They show component placement, nets and pin connections so you can locate parts, follow signals and probe test points. NM-C372 is an LCFC board number, a pattern used for Lenovo laptops. Confirm the revision silkscreened on the board is R03, as other revisions may differ in layout and parts.
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 @schematiclaptopramkushwaha. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.