Schematic for the Lenovo 3000 N100 notebook in PDF format, 875 KB in size. The name gives no board number, ODM or revision, so open the document and check its title block to confirm which mainboard it describes. A diagram like this is used to follow power rails, find the parts behind a missing voltage and work through no-power or no-boot faults. Compare the board number printed on the PCB with the one in the drawing before relying on values or part positions.
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 @smschematics. Enginerys does not host this file.
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.
Any PDF readerSumatraPDFFirefox / ChromeFlexBV (links PDF to boardview)