Schematic in PDF, under 1 MB, for Lenovo mainboard NM-D621 at revision 1.1. The NM-xxxx numbering belongs to LCFC, Lenovo's own manufacturing ODM. Technicians use the sheets to follow the power-on sequence, read the voltages expected on each regulator, identify EC and charger signals and find reference designators for replacement parts. Make sure the PCB revision matches 1.1, since earlier revisions such as 0.2 may differ, and pair it with a boardview to physically locate the components.
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 @cynetitsolution. Enginerys does not host this file.
All sources (2)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @cynetitsolution | 8 Feb 2026 | Open file on RM Schematics |
| @schematics_bios | 5 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.