Schematic in PDF form, packed in a 2.38 MB RAR, for a Lenovo Yx70 series laptop on the GN20E motherboard NM-E231, revision A0. NM-prefixed numbers follow the LCFC numbering used for Lenovo boards. The diagrams let a technician trace power rails, check the power-on sequence, follow signals between chips and locate the components behind a short. Any PDF reader opens it. Make sure the NM number and revision silkscreened on the PCB match, as component values can change between revisions.
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 | 25 Apr 2023 | Open file on RM Schematics |
| @boardviewsandachematics | 2 Sept 2025 | Open file on RM Schematics |
| @cyberlanelectonik | 23 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.