Samsung NC10 netbook schematic, board code-named WINCHESTER, revision 1.0, with a date of 20 August 2008 in the name; the file is a 1.54 MB PDF. Matching the code name and revision on the mainboard confirms it fits. Technicians use it to trace power rails from the DC jack through the charger and regulators, find test points and identify components on a short. Any PDF reader opens it; check the PCB markings, since later NC10 boards may have different revisions.
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)