Samsung Galaxy S schematic for model GT-I9000, delivered as a sizable 13.6 MB PDF. No board revision is stated in the name, so check the title blocks inside. The size suggests a fairly complete set covering power management, charging, USB, display, camera and radio sections. A technician uses it to trace rails from the PMIC, find the cause of no-power or no-charge faults and locate component designators. Open with any PDF reader and confirm that the PCB revision on the phone matches the drawings before relying on 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 @Schematic_mobile_iran. 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.