Copy of the NP-R60 PCB diagram, a schematic PDF of about 1.19 MB, carrying the extra suffix imp whose meaning is not clear. Its size matches the plain NP-R60 file, so it likely holds the same drawing. The NP model prefix is the naming style Samsung uses for notebooks. Use the schematic to trace supply rails, locate regulators and MOSFETs, follow signal lines and pinpoint shorted parts. No board number or revision is stated, so read the title block and compare it with the PCB markings before measuring.
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.