Asus repair guide for the model listed as Zenbook X453SA, in a 1.08 MB PDF. No board revision is stated in the name. Such Asus service documents normally summarize the power-up sequence, expected voltages, test points and component layout instead of the full schematic, so they are geared to quick fault finding. Use it to measure standby and system rails, check for shorts on supply lines and identify power controllers by location. Verify the motherboard revision on the PCB against the guide 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 @schematicslaptop. Enginerys does not host this file.
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How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.