Schematic PDF for the Lenovo ThinkPad P14s mobile workstation, main board NM-C931, packed in a 3.77 MB RAR. The NM- prefix follows LCFC numbering, the Lenovo-linked ODM that designs many ThinkPad boards. Unpack it and open the PDF to trace power rails, the charger and EC circuits, and the signal paths when a laptop will not power on or charge. The P14s came in several generations with different boards, so confirm that NM-C931 is printed on your PCB before you rely on the pinouts or 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 @schematicslaptop. Enginerys does not host this file.
All sources (3)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @schematicslaptop | 5 Mar 2023 | Open file on RM Schematics |
| @cyberlanelectonik | 23 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 14 Aug 2026 | Open file on RM Schematics |
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.