Compal laptop schematic for board LA-K093P at revision 1B, in PDF format at 2.04 MB. The name gives no laptop brand or model, so identify the device by the LA number printed on the mainboard, which follows Compal's ODM naming used across several notebook brands. A schematic of this kind lets a technician trace power rails, check the power-on sequence, find pull-ups on key signals and identify the SPI flash and EC. Confirm the revision on the PCB is 1B, since component values can change between revisions.
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 @cidschematicandboardviewofficial. 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.