Schematic PDF named T60GM, 1.63 MB. The GM suffix likely marks a variant of the T60 design, possibly a chipset version, though the name gives no explanation, board number or revision. A related T60PM file covers another variant, so check the title block and the motherboard markings to pick the right one. Circuit diagrams like this help trace rails, follow power sequencing and identify part values near faulty sections. Read the cover page first to confirm the details.
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.