I have this TV for a couple of years now. It’s Quadro lcd-22CH21 tv. Yesterday the sound has changed. Video is perfectly fine but the sound is deformed and everything sounds like it’s from another galaxy. I have also noticed that he started to overheat. So I assume it caused the sound problem. Do you have any advice on how could I fix it or should I leave it to expert.
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for the overheating, that would depend on if your TV has a fan. You do want to go ahead and remove the back of your set. Then take agood look at all of the boards. Check for obviously damaged parts like domed or leaky capacitors. Take some pictures of the complete layout of the boards as well as all of the boards. Post those with your question. That way we can see what you see. Use this guide iFixitでの質問に画像を追加する方法 for that. The main board is usually the board where you find the audio IC circuit. I would suggest you get a test speaker and hook it up to where your usual speaker is. See if that sounds different or same. If it has improved you know it is the speaker.
Of course, you checked all of your audio settings etc. before.
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