Repair guide, RG, for the P452SJ laptop, delivered as a 714 KB PDF. Expect board layout images with marked components, voltage values at key test points and flowcharts for no-power, charging and display faults rather than complete circuit diagrams. Because the name states no board number or revision, compare the pictures to your mainboard before taking measurements. Technicians use it to speed up initial diagnosis and then move to a schematic or boardview when tracing rails or signals further. Any PDF reader opens 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.