Lenovo motherboard schematic for board NM-D451, provided as a PDF in a RAR archive. The laptop model and revision are not stated in the name, so match the number on the PCB before use. The NM-xxxx pattern is used by LCFC, the Lenovo-owned design house. With this document a technician can trace power rails from the adapter input, find regulator enable and power-good signals, locate components behind a shorted rail and follow data lines. Open it with any PDF viewer.
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 | 16 Jan 2023 | Open file on RM Schematics |
| @cyberlanelectonik | 22 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.