Full schematic PDF for the Lenovo LCFC motherboard NM-B861, revision 1.0, about 18.7 MB. LCFC is the Lenovo-owned ODM behind the NM-prefixed board numbers found in many IdeaPad and ThinkPad models. Technicians open it in any PDF reader to follow the power-on sequence, measure rails at the named test points, locate MOSFETs and controllers around a short and check charger and EC circuitry. Match the board number and revision on the PCB before using the schematic for component values or pinouts.
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 @pkbiosbdv. 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 | |
|---|---|---|
| @pkbiosbdv | 28 Jan 2026 | Open file on RM Schematics |
| @schematiclaptopramkushwaha | 15 Sept 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.