Question about Insignia 37" LCD Flat-Panel HDTV

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Insignia ns-lcd42hd screen flutters

The tv is just over a year old. Went on vacation for a week, when I came back I turned the tv on..and the picture was all outta control. It was like someone was playing with the vertical hold. The picture just flutters up and down. It does it randomly. Will do it for 2 seconds or for 2 hrs. Some times turning off the tv fixes it, sometimes it doesnt. Will go for days sometimes without doing it as well. Of course my 1 yr warranty expired 4 weeks before this happened and neither Best Buy or Insignia will do anything about it. I've ruled out the cause being anything other than the tv, it does it with cable, xbox, ps3 inputs. It does it when nothing else is on as well...as soon as the tv comes on.

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  • brainwraps May 13, 2009

    Thanks.....even though you are waaay over my head with all that. Is this normal for a tv barely a year old?

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This television is having trouble with sync circuits. It probably has some component adding erratic noise voltage to the circuit causing the instability in the sync lock circuits. The solution is to locate the bad component with an oscilloscope by following the signal path with oscilloscope probe until you find the irregular signal and then replace the part. This part could be either capacitors or ringing resistors.It may also be a component in you solid state signal processor. You should have it tested in a service center and see if they can locate the bad components. Then see if it worth replacing with the cost of parts and labor. Hope this helps you with your problem.

Posted on May 13, 2009

  • stoneheaded May 13, 2009

    No This should not happen with quality components, but these products are on a very low level of component quality. Being made in china does not make a difference. They make high quality products for high quality manufacturers, like Sony and Toshiba. Unfortunately this is a Best Buy house brand and , they are in the business of selling products, so you do not get high quality. You can tell the level of quality of the products by the manufacturers warranty the longer the warranty the better the product. You should always buy extended warranties for these cheap products to avoid the low level component problems used in these type of products. Hope this helps you with your problem.

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I have a insignia ns lcd42hd 09 tv that on the left half of the screen has ghost images and sometimes vertical lines in it and i noticed when i shake it the screen goes back to normal but i have to do this...


I am also having a problem with my Insignia NS-LCD42HD-09. When I turn it on it is distorted and ghostly. It usually clears up within 10 minutes, but it can revert back at anytime. The television will be 3 year old this December. Does anyone have any advice (other than calling the Geek Squad)

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I have sound and picture distortion (like what happens during a thunderstorm) in my 42 inch insignia lcd tv but not during storms. started about two weeks ago, happens intermittently. driving me nuts. is...


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