Samsung schematic covering the R530C and R730C notebooks, which per the name share one board design, delivered as a 972 KB PDF. No board code name or revision appears in the file name, so verify it in the sheet title blocks. Repair use includes following the power sequence from the adapter to the CPU core regulator, checking the charger circuit, and locating components around a shorted rail. Readable in any PDF viewer; compare the revision on the PCB first since the two models may differ in fitted parts.
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 @smschematics. 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.