Circuit schematic for the Apple iPhone 4S, identified in the name by its internal N94 model code, supplied as a 1.34 MB PDF. Technicians use these sheets to follow power rails from the PMU, trace signal paths between the baseband, application processor and peripherals, and find which components sit on a line suspected of a short. Any PDF reader opens it, and text search helps locate net names quickly. Before relying on a value, compare the logic board revision printed on your PCB with the drawings, since Apple boards changed between builds.
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 @c_f_s. Enginerys does not host this file.
All sources (8)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @c_f_s | 19 Oct 2017 | Open file on RM Schematics |
| @mobileschematicshub | 14 Oct 2019 | Open file on RM Schematics |
| @pepeelectronica | 23 Apr 2022 | Open file on RM Schematics |
| @canalesquematicos | 21 Feb 2026 | Open file on RM Schematics |
| @canalesquematicos | 24 Feb 2026 | Open file on RM Schematics |
| @canalesquematicos | 21 May 2026 | Open file on RM Schematics |
| @schematics_bios | 24 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 1 Aug 2026 | Open file on RM Schematics |
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.