PDF schematic of 355 KB for the Positivo Stilo XCI3650, with board identifier S14BW01 and the U30 marking in the name. It appears to be the same document as other copies of this model's diagram. A technician uses it to identify regulator circuits, find measurement points for each rail, and follow data lines to USB, display and storage connectors. As the revision is not stated, check that the PCB carries the S14BW01 code, since revisions can change part placement and values between production runs.
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.
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