Schematic PDF for a Dell 14-inch laptop on the Haswell platform, built on Compal board LA-B843P. The LA-xxxxP pattern is Compal's motherboard numbering, and the same code is printed on the PCB near the edge. Use the diagram to trace power sequencing, locate MOSFETs and regulators behind a short, and follow signals between chipset and connectors. Open it in any PDF reader and verify that the board number and revision on the actual board match before relying on part values.
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.