Question about RCA L42WD22 42 in. LCD Television

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Unusable Signal I've had this RCA L42WD22YX5, 42in LCD TV for 14 months. About a week ago, while viewing a program, it just went dark, with 'unusable signal' message jumping on the screen. This was the RF input that I was using. I tried the composite video input and still the same problem. Then I tried the component video input and that one worked. But I really need to get the RF input working since I have it connected to my dish receiver. I also tried the VGA input by connecting it to my computer. It worked for a couple of days and now I am getting the same 'unusable signal' message showing on the screen too. Are these all related to one faulty board? If yes, please let me know which board needs to be replaced. Thanks, Mike S.

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  • Anonymous Feb 12, 2009

    i have the same problem no signal

  • alvelez1961 Feb 15, 2009

    yes all of my inputs do not work it reads unusable signal

  • Johnny Washington Jan 21, 2013

    Check the fuse on your main board I think it might be bad

  • Johnny Washington Jan 21, 2013

    The fuse is very small so you have to look for it really good to find it ok.

  • Johnny Washington Jan 21, 2013

    I fix this tv with the same problem that's why I know what the problem is

  • bon Congleton Jun 27, 2013

    alvelez1961 did you ever figure out the issue? im having the same problem

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Check your fuse on the main board I think it is bad

Posted on Jan 21, 2013

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Hello Mike:

The issue that you are having is with your small signal board and it needs to be replaced, it sounds like the microprocessor on that board is getting locked up.

Posted on Aug 19, 2008

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