TVW boardview named NS-C227, about 135 KB, with no brand or model in the file name. NS-xxxx codes follow the numbering used by LCFC for Lenovo daughterboards and small sub-boards, though the name alone does not say which device it serves. The .tvw format comes from Tebo-ICT and opens in TVW viewers or converters supporting it, showing component placement and nets. Use it to locate connectors, follow traces back to the mainboard cable and check for shorts, after confirming the NS-C227 marking on the actual PCB.
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 @pepeelectronica. Enginerys does not host this file.
How to open a .tvw file
Binary boardview from Tebo-ICT test software, frequent for Gigabyte, MSI and many newer laptop boards.