Circuit schematic in PDF form for the HP Mini 210 netbook, a 1.80 MB document whose name gives no board number, ODM or revision, only a copy index in brackets. Before working from it, compare the board number silkscreened on the PCB with the title block inside the PDF, because the Mini 210 was built on more than one board. Any PDF reader opens it, and technicians use such diagrams to follow power rails from the charger circuit to the CPU regulators, identify the source of a short and find the right resistor or MOSFET values.
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 @freeschematicdiagram. 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.