Schematic for the Apple iPad 2 logic board, saved as a 637 KB PDF. Repair technicians use such drawings to trace supply rails, check the charging and battery circuits, and identify components around the dock connector and display interface. Open it in a PDF reader and search for net or part names to follow signals. The iPad 2 came in Wi-Fi and cellular versions, so verify that the pages match your board before replacing parts or measuring against listed values.
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.