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LG 55LS4600 powers on with backlight no image

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    #21
    Re: LG 55LS4600 powers on with backlight no image

    Originally posted by budm View Post
    No power to TV, set meter to Ohm mode, 200 Ohm scale, then just check the resistance between the two legs of each cap.
    Looks like something got spilled in it probably some type of cleaner.i cleaned it with alcohol.
    My readings on the cap to the right in Ohm mode@200 1.8
    Couldn’t get a reading on cap to the left. Cap to left didn’t beep in continuity mode. However cap to the right did beep.
    I know the pics aren’t the best. I’ll try to take better ones later.
    Attached Files
    Last edited by woodman45; 12-26-2019, 01:30 PM.

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      #22
      Re: LG 55LS4600 powers on with backlight no image

      https://www.badcaps.net/forum/showth...ht=lg+55ls4600

      Duh I just found this.

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        #23
        Re: LG 55LS4600 powers on with backlight no image

        Thanks to everyone who has helped me on this. I have a full pic now but color is off. I'm assuming the tcon. I have another one.
        Attached Files
        Last edited by woodman45; 12-26-2019, 08:23 PM.

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          #24
          Re: LG 55LS4600 powers on with backlight no image

          https://www.youtube.com/watch?v=jLd6QO7Z7m4

          This video helped a lot also.

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            #25
            Re: LG 55LS4600 powers on with backlight no image

            Originally posted by budm View Post
            It can be as simple as shorted out caps on the tab bonding board of the bad side.
            It was one of the caps that was shorted on the tab bonding board. Thanks for pointing me in the right direction.

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              #26
              Re: LG 55LS4600 powers on with backlight no image

              Changed out the tcon board looks good.again thanks to everyone that helped.
              Attached Files

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                #27
                Re: LG 55LS4600 powers on with backlight no image

                Thanks for the follow-up.
                Never stop learning
                Basic LCD TV and Monitor troubleshooting guides.
                http://www.badcaps.net/forum/showthr...956#post305956

                Voltage Regulator (LDO) testing:
                http://www.badcaps.net/forum/showthr...999#post300999

                Inverter testing using old CFL:
                http://www.badcaps.net/forum/showthr...er+testing+cfl

                Tear down pictures : Hit the ">" Show Albums and stories" on the left side
                http://s807.photobucket.com/user/budm/library/

                TV Factory reset codes listing:
                http://www.badcaps.net/forum/showthread.php?t=24809

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