Schematic for the Dell Precision 5560 mobile workstation, built on Compal board LA-K411P, in a 5.98 MB PDF. It documents the power rails, sequencing, charger and CPU regulators, and signal routing, giving a technician the reference needed for no-power, no-boot or charging repairs. Compal's LA-xxxxP number is printed on the motherboard, so check it and the revision match before trusting values. Pair it with a boardview for the same board to find components and test points physically.
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 @cynetitsolution. 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.