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Sharp LC-60LE835U 60" Smart HDTV -- Bad HDMI

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    #1

    Sharp LC-60LE835U 60" Smart HDTV -- Bad HDMI


    Good morning forum,

    I have a Sharp LC-60LE835U in my possession that was functioning well until about two weeks ago after a lightning storm. Now, the HDMI inputs (4) and USB ports (2) no longer work. However, it seems that everything else (every analog input, audio, WiFi, TV apps) works as well as it should.

    My first assumption was to just purchase another main board to solve the problem. While posting for assistance on another site, that choice was seconded as the correct choice to make. I was just wondering, though, if there was anything else that could impact the HDMI ports like this. Could it be a power issue? Or is the main board the only logical problem.

    I did try to write the HDMI HEIDs to the board using adjustment mode, hoping that would help repair the bad HDMI connections; that did not help as the write process threw code NG (no good?) instead of OK.

    So, I am guessing that the Integrated Circuit on the main board that handles the USB and HDMI (digital connections) was damaged by lightning through the HDMI cable. Can this occur? To my knowledge nothing else was damaged during the storm. Could lightning have only damaged the TV through the HDMI cable and not affected the power board?

    Thank you for taking time to read and assist me.
    Last edited by thetugboat; 06-27-2014, 09:38 AM.
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    #2
    Re: Sharp LC-60LE835U 60" Smart HDTV -- Bad HDMI

    Best method is to replace the main board. You are lucky to have only the hdmi damaged only, usually these lightning surges fried the entire main board (guess it depends on how they are built).

    It usually enters through the HDMI first, and usually takes out the hdmi processor. I'm sure your power board should be fine.

    Do you happen to live in a single house? I'm wondering how these lightning strikes surge through single houses, but I wonder about apartments or townhouses.
    Last edited by Glitcher; 06-27-2014, 09:43 AM.

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      #3
      Re: Sharp LC-60LE835U 60" Smart HDTV -- Bad HDMI

      That sounds like a fair assessment. I'd check the power supply output voltages first though. Then you can say that the PS Is good.
      The strong-minded rise to the challenge of their goals,the weak-minded BECOME HATERS

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        #4
        Re: Sharp LC-60LE835U 60" Smart HDTV -- Bad HDMI

        I had a LC-52LE830U that suffered the same fate after a lightning strike. A new main board fixed it.

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          #5
          Re: Sharp LC-60LE835U 60" Smart HDTV -- Bad HDMI

          Originally posted by Glitcher View Post
          Best method is to replace the main board. You are lucky to have only the hdmi damaged only, usually these lightning surges fried the entire main board (guess it depends on how they are built).

          It usually enters through the HDMI first, and usually takes out the hdmi processor. I'm sure your power board should be fine.

          Do you happen to live in a single house? I'm wondering how these lightning strikes surge through single houses, but I wonder about apartments or townhouses.
          Originally posted by Dgtech View Post
          That sounds like a fair assessment. I'd check the power supply output voltages first though. Then you can say that the PS Is good.
          Thanks a lot for the reassurance guys. I'll try to check the power board's voltages as well to be more certain. I need to read up in the service manual about the correct voltages first. I couldn't find them displayed on the board itself as is the case with many power boards.

          EDIT: The TV was damaged from within a single home.

          Originally posted by johnboy1313 View Post
          I had a LC-52LE830U that suffered the same fate after a lightning strike. A new main board fixed it.
          That makes me feel more comfortable. Especially considering the main board appears to run ~$150.00.
          Last edited by thetugboat; 06-27-2014, 09:58 AM.

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            #6
            Re: Sharp LC-60LE835U 60" Smart HDTV -- Bad HDMI

            before buying a main board try the simple things first, replaced the HDMI cable or confirm the HDMI cable isn't damage, and reset the TV back to factory. From the power outage setting could've got corrupt.

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              #7
              Re: Sharp LC-60LE835U 60" Smart HDTV -- Bad HDMI

              Originally posted by ecking767 View Post
              before buying a main board try the simple things first, replaced the HDMI cable or confirm the HDMI cable isn't damage, and reset the TV back to factory. From the power outage setting could've got corrupt.
              Thanks for reminding me, I did forget to try that. I did try several HDMI devices, with separate HDMI cables, though.

              A few minutes ago, from the adjustment menu, I ran the command "Industry Init," which restores everything to a from-factory state. The HDMI ports are still non-functional, sadly.

              I also tried to write the HDMI EDIDs after this factory reset, which failed with code "write NG" again.
              Last edited by thetugboat; 06-27-2014, 12:19 PM.

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                #8
                Re: Sharp LC-60LE835U 60" Smart HDTV -- Bad HDMI

                HDMI failure from main PCB is very common. Above suggestions are correct, Replace the Main PCB

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