Schematic in PDF format for the Dell Latitude E6440, platform VAL90, board LA-9931P from Compal. It is used to follow power rails, check enable and power-good signals, find the parts responsible for a short and identify connector pinouts. Open it in any PDF viewer and search by net or reference designator. Verify that the board number on your PCB is LA-9931P and check its revision, since part numbering can change between versions. Pair it with a boardview for physical part locations.
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 @schematiclaptopramkushwaha. 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.