PDF schematic for the NP-M70 notebook, 4.24 MB in size, with no board number or revision given in the file name. The NP prefix follows the naming Samsung uses for its notebook models. Circuit diagrams of this kind help when tracing a dead power rail, checking which component sits on a shorted line, or following charger and backlight signals. Open it in any PDF reader and confirm that the board number silkscreened on your mainboard matches the one printed in the title blocks before relying on 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 @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.