Schematic for the LS-9313P IO board, a small 137 KB PDF. The LS- prefix is Compal's numbering for laptop daughterboards, such as USB, audio or power button boards, which pair with an LA- main board. No laptop brand or model is given in the name. Technicians use such a diagram to follow signals and power lines between the IO board and the main board connector, check port circuits and locate parts. Open it in any PDF viewer. Confirm the LS-9313P marking on the daughterboard matches before relying on it.
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 @biosschematics. 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.