Circuit diagrams saved as a 1.63 MB PDF under the name T60GM, which appears to be the GM-designated variant of a T60 design; no board number, brand or revision is given in the name. Comparing it with the PM-labelled counterpart can help confirm which version matches your board. Use it to follow voltage regulators, locate fuses and test points, and check signal continuity when diagnosing no-power or no-display faults. Before relying on component values, verify the PCB marking matches the sheet title block.
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.