lg-32lc41 Keeps changing channels on its own!

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  • Moreno83
    Badcaps Legend
    • Jun 2014
    • 2008
    • The Netherlands
    #1

    lg-32lc41 Keeps changing channels on its own!

    Hi People ,

    A friend of mine has a lg-32lc41 which keeps changing channels on its own. He lives further away so i don't have this tv with me and can't test it by myself.
    Tried removing the remote from the tv and removing the cable/buttons on the tv but it does not help.

    Is this a main board problem? Is it fixable? I know its not much information …. :/


    thanks!
    I only repair Panasonic plasma tv's! Currently owning a TX-P55VT50 and still searching for a ZT60!
    Tags: None
    • Shinju
      Badcaps Legend
      • Mar 2014
      • 1239
      • USA
      #2
      Re: lg-32lc41 Keeps changing channels on its own!

      Bad RF/Input function board. Needs to be replaced. I had a few Samsung panels with this same issue and replacing the part was the only fix.

        Comment

        • Moreno83
          Badcaps Legend
          • Jun 2014
          • 2008
          • The Netherlands
          #3
          Re: lg-32lc41 Keeps changing channels on its own!

          Thx for the reply! So thats the board with the buttons? Or the small board for the remote control?
          I only repair Panasonic plasma tv's! Currently owning a TX-P55VT50 and still searching for a ZT60!

            Comment

            • tom66
              EVs Rule
              • Apr 2011
              • 32560
              • UK
              #4
              Re: lg-32lc41 Keeps changing channels on its own!

              Before replacing the Keyboard PCB (the one with the buttons on it) try cleaning it with some contact cleaner or isopropanol alcohol.
              Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
              For service manual, schematic, boardview (board view), datasheet, cad - use our search.

                Comment

                • Shinju
                  Badcaps Legend
                  • Mar 2014
                  • 1239
                  • USA
                  #5
                  Re: lg-32lc41 Keeps changing channels on its own!

                  Originally posted by Moreno83
                  Thx for the reply! So thats the board with the buttons? Or the small board for the remote control?
                  Like tom said, I didn't look up the panel, so if its got buttons try cleaning them.

                  The Samsung ones I replaced were all touch sensitive no physical push buttons no amount of cleaning would save em!

                  Also check for pinched wires or wires that might be rubbing on something and exposed. I had one Samsung that would do nothing no power ect. I took the back off and one of the wires were pinched to the point of grounding to the frame of the TV. How that happened when the panel was never taken apart is beyond me but it probably came from the factory like that.

                  One other thing you might try is having him unplug the button cluster from the MB if the RF board is separate and see if you have remote only functionality.

                    Comment

                    • Moreno83
                      Badcaps Legend
                      • Jun 2014
                      • 2008
                      • The Netherlands
                      #6
                      Re: lg-32lc41 Keeps changing channels on its own!

                      Hi Tom/Shinju ,

                      I asked the guy to give me the TV so i can have a look at it! Thx for the hints , will try them all and let you guys know the outcome!

                      Thx!
                      I only repair Panasonic plasma tv's! Currently owning a TX-P55VT50 and still searching for a ZT60!

                        Comment

                        • ERICSSON89
                          Member
                          • Oct 2014
                          • 46
                          • NIGERIA
                          #7
                          Re: lg-32lc41 Keeps changing channels on its own!

                          check the supply voltage to main chip, the voltage regulator IC might have problem

                            Comment

                            • ERICSSON89
                              Member
                              • Oct 2014
                              • 46
                              • NIGERIA
                              #8
                              Re: lg-32lc41 Keeps changing channels on its own!

                              the supply voltage to the main chip? what of the MST line on the board? there's an SMD VOLTAGE Regulator there I think the output voltage might go higher than the normal output v. for example
                              output v 3.7v
                              instead of
                              3.3v

                                Comment

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