A schematic diagram for Lenovo hardware. Shared as “IBM_Thinkpad_R30_laptop_schemaics_tech4.ro_.pdf” — a .pdf file, 921 KB.
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 @bartonarquivos. 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.
Any PDF readerSumatraPDFFirefox / ChromeFlexBV (links PDF to boardview)