Schematic PDF for the Lenovo ThinkPad X200, about 1.2 MB. No motherboard number or revision is stated in the name, so open the title block on the first pages to identify the board project and revision before work begins. A PDF schematic opens in any reader and can be searched for net names, which speeds up tracing power rails, the standby and main power sequence, charging circuits and data lines. Compare part references with your board, as several X200 variants exist and component values may differ.
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 @alischematics. 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.