Compal LA-A972P motherboard schematic in PDF form, about 1.19 MB. The name provides the board number only, with no laptop model or revision listed. Compal's LA-xxxxP numbering is used across notebooks of many brands, so look for the code on the board silkscreen to confirm the match. Technicians use such a diagram to trace the main and standby rails, check enable and power-good chains, and locate components when diagnosing no-power or no-display faults. Make sure the PCB revision agrees with the drawing first.
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 @alischematics. 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.