Apple iPad Air schematic in a 1.01 MB PDF, with no board number or variant given in the name. It is useful for following power rails from the PMIC, checking charging and USB paths, and identifying components around the connectors when diagnosing faults. Open it in any PDF reader and use search to find nets. Since the file name is minimal, check the title block on the pages for the board identifier and confirm it matches the logic board on your bench 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 @mobileschematicshub. 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.