HDMI Input - No Signal Found

[xenocide83]

I have an Element ELDFT551 LCD TV that recently began having issues when connecting HDMI devices to it. I have a Media PC that has been hooked up to this TV for about 2 years and just recently began having the issue where the PC will display on the TV for a few minutes before the TV picture starts to flicker in and out for about a minute before it ultimately goes blue and says No Signal Found. I have hooked up the Media PC to another TV and the signal holds without any issues so I know the issue is not with the Media PC or the HDMI cable since they work on the other TV without fail. I have also noticed that the Component input that my cable box is plugged into flickers once every 15 minutes or so. So my main question is... Which board in the TV is the one that is giving me trouble? My guess is the Main Board which has the input connectors but I am not 100% sure of all the boards that are found in LCD TVs. I ruled out the Power Board as the blue screen with No Signal Found stays strong. Any help is greatly appreciated.

 

[tvrepairdenver]

it might be the main board, no one can be sure 100% unless examine the capacitors in the board. Unfortunately, the new TVs life span in about two or two and half years.

 

[xenocide83]

it might be the main board, no one can be sure 100% unless examine the capacitors in the board. Unfortunately, the new TVs life span in about two or two and half years.

Thanks, I'll take a look at the capacitors on the main board and see if anything is wrong.