Schematic in PDF form for the LCFC NM-C433 motherboard used in Lenovo notebooks, packed in a 2.88 MB RAR. The name does not give a revision, so check what is inside. Use the circuit diagram to follow the power-up sequence, trace rails from the charger to the CPU regulators, and find the components and test points to measure during repair. LCFC marks its Lenovo boards with NM- codes, so check the code printed on the PCB before relying on part 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 | 6 May 2025 | Open file on RM Schematics |
| @cyberlanelectonik | 18 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 26 Oct 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.