Question about Sharp 27K-S300 27" TV

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High Pitched Noise

Iam getting a high pitched noise from my TV. Usually it starts about 5 minutes after its on. Most of the time it comes and goes. If I hit mute its still there. Thanks

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This is a common problem with most tv's today. Its nothing more then a 'singing' ciol or transformer. What i mean by that is that when voltage is going threw a ciol it makes a magnetic field arounfd the coil or transformer and what happens then is if the windings are loosly wound then they tend to vibrate and sometimes they will vibrate so fast that it will be in the audiable range. all coils and transformers will 'sing' but they are way above the normal hearing range. Most of my complaints in the past about singing coils have been from the ladies. NOW LADIES this is no insult to you at all its just a proven point that the ladies have a higher hearing range then men do. Now to fix this problem?? You can most of the time simply replace the part if you can find whats doing it or find the part and tighten the transformer laminations by clamping the outside of it. Using wood or plastic toothpicks up underneath the coil or transformer or siliconing the part a bit. BUT I DO ADVISE NEVER NEVER EVER!!! should a novice or unexperienced person go inside of a tv set as there is really nothing you can do but get the shock of a lifetime. If it bothers you where its really loud and yes I've heard some really loud singers in my time. Please reure to your local repair shop as they will im sure be able to quit down the singer.. Good Luck

Posted on May 14, 2006

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