Boardview for a Lenovo laptop built on Compal board LA-J781P revision 1.0, compressed as a small ZIP. Compal designs many Lenovo boards and numbers them in the LA-xxxxP pattern. After extraction, open the layout in a viewer such as OpenBoardView or FlexBV to locate parts, test points and nets when following a power rail or checking a short to ground. Confirm the LA-J781P marking and revision on the PCB match before trusting placements; a matching schematic exists for the same board.
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 @cynetitsolution. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.