Schematic in PDF format for the Compal motherboard LA-4993P, revision 1.0. No laptop brand appears in the name, although Compal boards of this pattern were supplied to several notebook makers. The diagrams let a technician trace power sequencing, locate the source of a short on a rail, check connector pinouts and find the parts that feed each voltage. Open it in any PDF viewer, and compare the board number and revision printed on the PCB before relying on its values.
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 @cynetitsolution. 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.