Schematic diagram for the Samsung NP-R423 laptop, supplied as a PDF of about 1.1 MB. Apart from the model, the name carries no board code name or revision, so confirm that the sheet titles agree with the markings on the actual motherboard. The document helps with fault finding on power, charging and display circuits, showing net names, component values and connector pinouts that a technician needs when measuring rails or tracing a short. A standard PDF reader is enough to view and search it.
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.