Schematic in PDF for the Sony Xperia Z smartphone, 2.76 MB, with a website tag in the name and no board revision stated. Smartphone schematics of this kind show the power management circuit, charging path, display and camera connectors, RF sections and signal names between components. Repairers use them to trace missing voltages, locate shorted capacitors and identify parts around the main processor. Open it in any PDF viewer and confirm the hardware variant matches the phone before replacing components.
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 @mobileshematic. 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.