Samsung motherboard schematic in PDF, 1.24 MB, listing three board numbers: BA41-01024A, BA41-01025A and BA41-01026A, which suggests related board variants covered by one design. No laptop model is named, so identify the device by the BA41 code printed on the PCB, Samsung's own part numbering. Technicians use the diagram to trace power rails, locate parts on shorted lines, verify rail voltages and follow signals between chips. Open it in a PDF reader and confirm which of the three numbers matches your board before measuring.
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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How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.