Service manual for the LE32B13200 television in PDF form, 5.47 MB, with 110525 in the name, which looks like a document date code. No brand or chassis is stated, so the cover page should identify the manufacturer and the main board used. A manual of this type is used to follow power and signal circuits, find test points and component values, and look up service procedures. Later production runs can use different boards, so check the PCB markings against the manual before working from it.
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.