Why my TV & computer monitor makes high frequence noise?

March 6, 2010 by admin · 1 Comment
Filed under: TVs 
computer monitor
Jeffrey asked:

My TV makes a very high frequency noise when it’s turned on. But despite that noise, my TV has no problem at all. Same with my computer monitor, but the difference is it makes noise when it’s off. My parents don’t hear them because it’s too high frequency for them to be heard. What or how exactly is making these noises and is there any way to fix it?

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