Circuit schematic for the first-generation Apple iPad, supplied as a 1.26 MB PDF. The name gives no logic board number or revision, so compare the sheet titles inside with the markings on your board before trusting the part references. Technicians use a tablet schematic like this to follow the battery and charging path, check power rails from the PMU, trace the backlight and display connector signals, and identify which net a shorted capacitor belongs to. Any PDF reader will open it, and text search helps locate nets when the file is searchable.
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 @boardview. 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.