Second file in a series of schematic PDFs for the TH32A410H television, 6.62 MB, marked with a -2 suffix. The set includes four files of identical size, which could be duplicates or sections, so check the page content. A standard PDF reader opens it. Technicians use such diagrams to measure voltages at test points, follow the power board outputs to the main board and check panel and backlight drive. Match the model sticker and board markings before trusting values.
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.