Schematic diagram in PDF form for the TCL LED43C710 television, 683 KB in size, with the name written in Russian as scheme. Technicians use such drawings to trace power supply rails, backlight driver circuits and signal paths between the main board and panel, and to find component values around a failed section. Open it in any PDF viewer and search by reference designator. Before trusting it, compare the board numbers printed on the chassis PCBs with those in the drawing, since TV sets can ship with different board versions.
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 @gunvantrathore. 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.