Schematic PDF for a Lenovo laptop on Compal board LA-J781P revision 1.0, with FLAE1 being the Compal project code for this design. Compal is the ODM behind LA-xxxxP numbered boards. The circuit diagram documents power rails, sequencing, the charger and EC wiring, letting a technician trace why a board fails to power on or charge. Pair it with the boardview of the same revision to find components physically, and verify the PCB revision 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 @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.
Any PDF readerSumatraPDFFirefox / ChromeFlexBV (links PDF to boardview)