Schematic for a board labelled P552SJ, with an RG suffix, in a 1.29 MB PDF. The name gives no brand or revision, so identify the board by the code printed on it and compare before use. P552 style names resemble ASUS notebook model numbering, but that is not stated in the file. Such a diagram lets a technician trace power rails, find the source of a short, read the power-on sequence and check connector pinouts. Any PDF viewer opens it, with search useful for nets.
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 @afsschematicfree. 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.