Laptop schematic from Wistron, board number 10290-2, project LZ57, covering both Discrete and UMA graphics variants, with the code 91.4PA01 in the name, as a 2 MB PDF. Wistron board numbers use the five-digit plus dash revision format seen here, and the project name appears in the title block. No brand is given, so confirm the laptop by its board marking. Use the document to trace rails, locate components and follow the power sequence, noting which pages apply to the discrete or UMA build you have.
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 @schematicslaptop. Enginerys does not host this file.
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The standard format for schematics, block diagrams, power-sequence charts and service manuals.