Lenovo laptop schematic for board NM-A831 at revision 2.0, a number following the LCFC numbering pattern, the ODM that builds many Lenovo machines. The name also carries the project code CE570 and a sovp tag whose meaning is not certain. Expect power sequencing pages, rail names, connector pinouts and component references for diagnosing no-power, no-charge or short faults. It opens in any PDF viewer. Check that the NM-A831 label and revision silkscreened on the mainboard agree with this document before following it.
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The standard format for schematics, block diagrams, power-sequence charts and service manuals.