Schematic PDF for a Dell laptop board built by Compal, labelled LA-B015PI, 1.70 MB; the specific Dell model is not stated in the name. Compal uses LA-prefixed board numbers, and the extra letter may mark a variant, so confirm the exact code on the PCB. The diagrams help follow power rails from the charger to the CPU regulators, inspect sequencing signals and read connector pinouts. Open it in any PDF reader and match the revision 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)