Schematic or service document in PDF for the TV model THL32C3D, about 16.2 MB, which suggests a fuller service manual rather than a single diagram. A copy with a -1 suffix of the same size also exists and is probably a duplicate. Open it in any PDF viewer to trace the power supply, main board and inverter or LED driver sections, find test points and check component values. Make sure the model label on your unit and the board numbers agree with the document.
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 @datasheets1. 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)