hi.. i am having a problem with my led tv, all i can do is turn it off/on. it only shows 'no signal' even if it has antenna co

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Dec 4, 2017
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hi.. i am having a problem with my led tv, all i can do is turn it off/on. it only shows 'no signal' even if it has antenna connceted when im trying to click other buttons except power it says 'key lock'. i also lost my remote so i cant do anything with my tv.. could you help me with this?