Schematic PDF of 4.74 MB for the W670RCQ, with ESM in the name; the brand is not stated, though W-series codes of this type are associated with Clevo-designed laptops sold under many brands. The drawing helps trace power rails, locate the EC, charger and VRM circuits and analyse no-power or no-display faults. Search net names in a PDF reader for faster tracing. Confirm the model code and revision on the PCB match before relying on part designators.
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 @opendatasheet. Enginerys does not host this file.
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.
Any PDF readerSumatraPDFFirefox / ChromeFlexBV (links PDF to boardview)