Lenovo 3000 N100 schematic, a 875 KB PDF that appears to be a second copy of the same document, given the identical size and the (2) suffix in its name. No board number or revision is stated in the name, so read the title block inside to see which mainboard it covers. Repair technicians use it to trace supply rails, check signal paths and locate components while diagnosing a dead or unstable board. Confirm the PCB marking matches before trusting it.
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)