PDF schematic for the TV controller board TP.MS3663S.PB818, file size about 3.3 MB. The MS3663 part of the code points to the MStar SoC, and the TP.xxx.PBxxx naming is used on universal LCD TV mainboards sold for many panel brands. The sheets help you follow DC-DC converters, the panel interface, audio amplifier and keypad or IR lines when diagnosing a dead or no-picture fault. These boards come in close variants, so compare the full label on the PCB first.
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.
Any PDF readerSumatraPDFFirefox / ChromeFlexBV (links PDF to boardview)