A schematic diagram (board LA-B972P). Shared as “ASO56 LA-B972P (REV 1.0).pdf” — a .pdf file, 13.2 MB.
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 @nityatechnology2020. Enginerys does not host this file.
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The standard format for schematics, block diagrams, power-sequence charts and service manuals.