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Lg 42LD490-ZB no HDMI

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    Lg 42LD490-ZB no HDMI

    Hi

    Was wondering if anyone has any experience with HDMI not working? I wasn't able to find a schematic for this model, but I took a shot in the dark and replaced the HDMI switching IC (NXP, TDA19997HL), but that didn't make any difference..

    Everything else works on the TV, except the 3 HDMI ports. TV detects HDMI connected, then says 'Connecting', followed by 'No Signal'. I tried updating the software, checked the ports, tried different cables etc.

    This TV belongs to a friend of mine, and I only had the mainboard to work on. he has taken the board back to test, and has said the problem is the same. He is bringing the whole TV for me to look at, so I'm just looking for some advice here, as I have never repaired this kind of problem on a TV before.

    Thanks in advance!

    #2
    Re: Lg 42LD490-ZB no HDMI

    You probably need to replace the whole mainboard

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      #3
      Re: Lg 42LD490-ZB no HDMI

      I already tried to get a replacement board, but every site I checked is 'out of stock', which is why I'm trying to repair the board.

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