Lloyd 55MS850G service manual for the webOS 2.0 platform, provided as a 7.26 MB PDF and catalogued as a schematic. The name also includes the marker N 1, possibly an edition number. Manuals like this generally include disassembly steps, board layouts, wiring, block diagrams and schematics. A repair technician can use them to diagnose no-power, no-picture or backlight faults and to find test points. Any PDF viewer opens it. Verify the exact model on the set's label, because the 55 and 65 inch versions of this series have separate manuals.
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 @pdf_servicemanual. 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.