Schematic in PDF format, inside a RAR archive, for a Lenovo S550 built on the LCFC NM-C811 motherboard. LCFC is Lenovo's own ODM and uses NM- board numbers printed on the PCB. The drawings document power rails, the power sequence, charging, and the CPU and memory interfaces, which helps when tracing shorts or missing voltages. The NM-C811 board may be shared with other models, so check the PCB marking and revision before relying on component 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 | 23 Feb 2023 | Open file on RM Schematics |
| @cyberlanelectonik | 18 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.