PDF schematic for Compal board LA-K661P revision 1.0, 3.45 MB, with no laptop brand given in the name. LA-prefixed numbers follow Compal's scheme. The pages cover power rails, sequencing signals, charger circuitry and connector pinouts, helping trace why a rail is missing or which component feeds a shorted line. Open it in any PDF viewer and use text search for net names, and verify the number and revision printed on your PCB match before relying on 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 @pkbiosbdv. 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.
Any PDF readerSumatraPDFFirefox / ChromeFlexBV (links PDF to boardview)