Compal NM-A311P schematic, revision 0.2, a 1.34 MB PDF with no laptop brand or model given in the name. Compal designs boards for several notebook brands, so match the code printed on the PCB to identify the machine. The diagrams cover the power sequence, voltage regulators, CPU and memory interfaces and connector pinouts, helping when tracing a dead rail or finding the component causing a short. An early revision such as 0.2 may differ from production boards, so cross-check components.
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 @schematicslaptop. Enginerys does not host this file.
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How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.