Schematic document for the IBM ThinkPad X31 ultraportable, saved as a 1.08 MB PDF. The name offers no board number or revision, so compare the drawing's title block and part designators with the system board before trusting values. With this diagram a technician can trace the DC input and charging path, follow standby and main power rails, and pinpoint components connected to a shorted line. Searching net names in a PDF reader speeds up moving between sheets when following a signal from the connector to the controller.
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 @cyberlanelectonik. 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.