LG 42" LCD TV 42LG20-UM No video ONLY sound BAD inverter board or bad power board?

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  • Cec243
    New Member
    • Mar 2014
    • 1
    • Uk
    #61
    Re: LG 42" LCD TV 42LG20-UM No video ONLY sound BAD inverter board or bad power boa

    Hello, I'm sorry to resurrect this thread. I have a similar issue with an 42lg5010. After reading this thread and testing the fuse on the master inverter board it seemed to be faulty. I attempted to replace it but it was too small so I just bought another inverter board off eBay. Like for like swap. Now when I turn it on the screen comes on for 2 seconds then goes off and I can continue to hear the sound. Before I changed the inverter the screen wouldn't even come on. Now I have the 2 seconds to black problem. Any suggestions on what to try next? Obviously the fuse had gone on the master and now with the new board it's ok but there's something that's making the screen switch off.
    Please help I'm tearing my hair out!!!
    Thanks in advance

      Comment

      • KhattOn
        New Member
        • Jan 2015
        • 2
        • United States
        #62
        Re: LG 42" LCD TV 42LG20-UM No video ONLY sound BAD inverter board or bad power boa

        Sorry to resurrect this thread but I'm having the exact same problem as initially mentioned. Could you link me to a/the 1 ohm resistor you purchased, or will any 1ohm resistor do?

          Comment

          • KhattOn
            New Member
            • Jan 2015
            • 2
            • United States
            #63
            Re: LG 42" LCD TV 42LG20-UM No video ONLY sound BAD inverter board or bad power boa

            Can't edit I guess.... I have the same model as OP, I just want to make sure I get the correct resistor.

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