My tv has a problem with the picture flickering off and on. Sometimes is goes off. I tried moving the cable hook up and sometimes it settles the picture to stay on. I also tilt the tv back a bit to make the picture stay. Please help.
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The noise is coming from the fly-back transformer. By moving the cable connector you move the main board. Unplug the TV and remove the back. The transformer has a red wire going to a rubber cup at the top of the picture tube. Looking at the transformer you will see a dough nut shape with a metal piece going through it .. Drive some tooth picks between the dough nut and the metal core. That should reduce or stop the ringing.
I have a vcr and dvr combination emerson tv a 27 inch and sometimes while playing it will flicker and these horzion lines come in while a program is runing, and then the sound goes way down then comes back up to normal.
Your set might have a high voltage leak and that is the noise you hear when is showing the screen problem or even maybe an arking too ,either one is related to the high voltage and it can be dangerous,if you are familiar with tv service you can try to see where is arking and replace the part with an exact replacement but if the set has a leak you will not see it and is not safe to be close to it,if you are not too familiar be safe and call for assistance from a servicer.