Schematic PDF, 11.8 MB, whose name le19a111061 is only a cryptic code, apparently pointing to a 19-inch LE-series LCD TV or monitor. No brand is stated, so confirm the model against the unit label before relying on it. A schematic of this kind shows the power stages, main board circuitry and connector pinouts, which is useful for measuring rails, checking shorted components and following signals. Open it in a standard PDF reader and check that the board numbers printed in the drawing match the PCB being repaired.
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.