Schematic PDF for the Lenovo Legion Y740-15ICHg, named in the file as ThinkPad, built on Compal board LA-J061P revision 03, size 2.17 MB. The circuit diagrams show the power sequence, regulator circuits, rail names and signal paths, so a technician can determine why a voltage is missing or which part drives a given net. Open it in any PDF reader and combine it with the LA-J061P boardview for part locations. Confirm the revision printed on the PCB matches r03 before trusting values.
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 .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.