Lenovo Y510 schematic, 1.26 MB PDF, with no board number or revision listed in the file name. Lenovo IdeaPad notebooks are typically built by ODMs, so open the document and note the project code and revision in the title block, then compare it with the marking on the motherboard. The schematic is useful for following power rails from the charger to CPU and memory supplies, finding parts on a shorted line and checking signal routing. Different board versions of the same model can exist, so confirm the match first.
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 @smschematics. 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.