Schematic for the Quanta ST6 board, labelled 6A in the name, possibly the revision, with board number DA0ST6MB6E0, in a 2.56 MB PDF; this is a duplicate copy. The DA0 prefix is Quanta numbering, where the letters after DA0 repeat the ST6 project code. Check that the number and revision on the PCB agree. Use the drawings to trace power rails, follow signals, find test points and locate components while diagnosing shorts or missing voltages.
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 @abgm_manutencao_esquemas. 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)