Zip archive of 1.34 MB for the Lumia 640 LTE, covering hardware types RM-1072, RM-1073 and RM-1074. These codes denote regional variants of the same LTE model, so the documents should apply across them, though the label code still deserves a check. Contents are not named, but service schematics or component-layout drawings are the usual content. Technicians use them to trace supply lines, identify the charging circuit and connectors, find test points and isolate shorts during board-level repair of this Windows Phone handset.
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 @esquematicosparatodos. Enginerys does not host this file.
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