It sounds like there is some sort of issue. When you hit the input button on your remote do you see any menu? If you don't, take apart the TV and see if there is anything that looks wrong. It looks like it might be capacitors so if you see any of these cylinders where the tops are bloated or have some weird substance on the top, are bad caps and need to be replaced. If you see these they need to be replaced. If you don't have any experience with soldering, take it to some repair shop near you to have them replace them. If you don't see them, report back to me here and we can figure out other options.
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