Compal schematic in PDF for the AAL15 platform, board number LA-D871P revision 1.0, about 4.1 MB. LA- numbers are Compal's own motherboard codes, and the laptop brand is not named in the file. The diagram lets a technician follow power rails, trace signal paths, find which component sits on a shorted line and check expected voltages at test points. Any PDF reader opens it, and searching for net names speeds navigation. Verify that the LA-D871P label and revision on the PCB match before trusting 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 @ITHINKHS. 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.