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Input doesn't work It just says unusable signal

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You will need to replace the main board as long as you have video going to the set. Have you tried to replace the cable going to the set? Have you also verified the video source?

Posted on Aug 17, 2014

  • Lou Labetti
    Lou Labetti Aug 17, 2014

    you will need to replace the main board as long as you have video going to the set. Have you tried to replace the cable going to the set? Have you also verified the video source?

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SOURCE: 42 RCA TV flashing unusable signal

Ur backlight video board it dead,must replaced.

Posted on Dec 05, 2009

SOURCE: Unusable Signal

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

Posted on Jan 21, 2013

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