Schematic package for Lenovo board NM-A271, revision 1.0, under the project codes ACLU1 and ACLU, in a 3.89 MB ZIP. NM-series numbers belong to LCFC, Lenovo's own board maker. The exact laptop model is not stated in the name, so match the board by the NM code and revision silkscreened on the PCB. Files of this kind let a technician follow the power sequence from the charger IC to the CPU regulators, find test points and isolate a shorted rail. Note the related NM-A272 board, which differs.
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 @ITHINKHS. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.