Dell N5110 laptop schematic in PDF format, 1.45 MB, a model sold in the Inspiron line. The name gives no board number, revision or ODM. The diagram helps with repairs such as a dead board, a missing 3V/5V always-on rail, charging faults or a shorted MOSFET, because it shows the component references, the voltages and how the regulators connect. Open it in any PDF reader and search for net names. Before ordering replacement parts, check that the board code silkscreened on the PCB matches the document.
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 @cyberlanelectonik. 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.