Question about Sharp 27J-S100 TV
There is a really bad static and ringing noise coming from the back of the tv. this only happens when the tv has been on for about 20 min. if we put a heavy book on the back it stops for a while. whats wrong and should we buy a new one? thanks
This is a common problem as I have stated in many of post here before with inexspensive TV sets. Whats happing here is a "singing" coil. it could be a small coil on the pc board or could even be the flyback transformer or maybe even the switching power supply transformer or could as well be a choke coil in the power supply. Not much a consumer can do really at this poit as there are no serviceable parts inside of this set BUT I think what your doing with heavy book is a really cool thing as whats its doing is flexing the printed curcuit board so your problem in this case i would think would be a small coil on the PCB. But as I said not much you should do about it unless your a quilified technician Sorry to say man but if it really gets to be an anoyence then I would take it to your local repair shop for an estimate(but you know problems like this dont show up at the repair shop when you take them in!) It shouldnt be a big deal unless it turns out that thye flyback transformers the problem!!! Good Luck
Posted on May 19, 2006
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Posted on Jan 02, 2017
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