IBM ThinkPad T41 notebook schematic, delivered as a PDF of about 1.09 MB. The file name states only the model, with no board number or revision, so match the drawing against the markings on your board before depending on it. With this material you can trace power distribution from the adapter input, check clock and reset signals, and narrow down which device is loading a shorted rail. A standard PDF reader opens it, and text searching for net labels or reference designators saves time during diagnosis.
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.