Lenovo schematic for board NM-C221, labelled for the Legion Y540 (written as Pass Y540 in the name), as a 3.05 MB PDF. NM-xxxx numbers follow the LCFC scheme, the Lenovo-owned ODM that designs many Lenovo notebook boards. The document lets a technician trace power rails, check charger and CPU and GPU voltage regulator circuits and locate parts linked to a short. Open it in a PDF reader and confirm that NM-C221 and the revision printed on the PCB match the title block.
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 @hrtechno. Enginerys does not host this file.
All sources (5)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @hrtechno | 23 Jul 2021 | Open file on RM Schematics |
| @alischematics | 13 Sept 2021 | Open file on RM Schematics |
| @pepeelectronica | 28 Apr 2022 | Open file on RM Schematics |
| @ShareMan_Electronic_Files | 6 May 2025 | Open file on RM Schematics |
| @schematics_bios | 3 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.