Lenovo motherboard archive for board NM-A681, a 12.5 MB ZIP file. NM-xxxx numbers follow the LCFC pattern, the Lenovo-owned ODM that builds many ThinkPad and IdeaPad boards. The name does not list contents or a revision, but the size suggests a schematic and possibly a boardview. Check the NM-A681 code and revision on the PCB before relying on it. Use it to trace power rails, review the EC and charger circuits, and locate components and test points while diagnosing shorts or no-power faults.
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 @ITHINKHS. Enginerys does not host this file.
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