PDF schematic for the Lenovo-made LCFC board NM-D521 at revision 1.0, in its AMD platform version as the file name states. NM- prefixed numbers belong to LCFC, Lenovo's in-house design and manufacturing arm. The 3.31 MB RAR holds circuit diagrams for tracing power rails, the power-on sequence, charger circuitry and signal paths when diagnosing shorts or missing voltages. Any PDF reader opens it; check that the revision printed on your PCB matches before relying on component values or reference designators.
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 (4)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @schematicslaptop | 30 Nov 2022 | Open file on RM Schematics |
| @bartonarquivos | 5 Feb 2025 | 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.