Schematic for the Lenovo IdeaPad 330S-15IKB series laptop, delivered as a 13.8 MB PDF. The name gives no board number or revision, so compare the board code printed on your PCB with the one in the title block. A laptop schematic lets a technician follow power sequencing from the adapter input through charger and system rails, check enable and power-good signals, and find the components behind a short. Open it in any PDF reader and use text search for net names and designators.
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 @laptopschematics. 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.