Dell schematic PDF named VBW11, 3.24 MB, which is most likely an ODM project or board code; the laptop model is not stated. Identify the matching unit by comparing this code with markings on the motherboard. Schematics like this map voltage regulators, power-on sequence, charger circuitry and interface pinouts, helping trace a missing rail or a shorted component. Open it in any PDF reader, and check the title block revision against the board before measuring.
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 @datasheets1. 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.
Any PDF readerSumatraPDFFirefox / ChromeFlexBV (links PDF to boardview)