Schematic in PDF format for the W3V-A, about 1.55 MB, with no manufacturer, revision or board number given in the name. The A suffix may indicate a variant, so confirm details from the title block within the document. Open it with any PDF viewer and use search to locate nets, chips or connectors. Technicians use such diagrams to trace power from the adapter input through the charger and standby rails to the CPU regulators, and to identify components when a board shows a short or fails to start. Verify board markings first.
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 @alischematics. 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.