LG 43UK6470PLC - no image

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  • pi3141592
    New Member
    • Apr 2020
    • 8
    • United Kingdom
    #1

    LG 43UK6470PLC - no image

    Hi All,

    I have a 43UK6470PLC that was showing no picture at all.

    I got a replacement Mainboard + T-Con (combined unit) – part number EAX67872805 - as it was cheap and was hoping for a quick win. Unfortunately, no luck with that.

    So, looks like an LCD issue. If I:
    • remove the Left had side LCD driver cable – No Picture
    • remove the Right had side LCD driver cable – No Picture
    • tape over Pins 3-12 Left hand side LCD driver cable – Picture with some blank lines and flickering on the left-hand side.


    I'm trying to figure out exactly what pin I need to isolate but having difficultly as I think it could be more than one pin on both sides.

    Anyone have a schematic or know the pinouts for the LCD on EAX67872805? Or any other tips to help isolate what one it is?

    Many Thanks. Jas
    Tags: None
    • pi3141592
      New Member
      • Apr 2020
      • 8
      • United Kingdom
      #2
      Re: LG 43UK6470PLC - no image

      Just an update.

      Got it working by covering pin 1-6 with scotch tape.

      Looks like this TV used the same mainboard and similar issue.
      https://www.badcaps.net/forum/showthread.php?t=82783

      Hope this helps someone.

        Comment

        • dskall
          Badcaps Legend
          • Oct 2016
          • 2905
          • usa
          #3
          Re: LG 43UK6470PLC - no image

          Odd that one side did not come back when removing cable.
          I assume no responsibility for any stupid suggestions I might post.

            Comment

            • alfatv
              Badcaps Veteran
              • Sep 2020
              • 353
              • Canada
              #4
              Re: LG 43UK6470PLC - no image

              Originally posted by dskall
              Odd that one side did not come back when removing cable.
              It's true with these series.
              The only noticeable difference between sides is that power supply shuts down when bad side is connected.

                Comment

                • GodGecko
                  New Member
                  • May 2022
                  • 3
                  • Croatia
                  #5
                  Re: LG 43UK6470PLC - no image

                  i have the same exact issue on the same model.
                  by covering pins 3 and 12 the TV works but with some flickering one the upper left corner

                    Comment

                    • nomoresonys
                      Badcaps Legend
                      • Jan 2013
                      • 12206
                      • U.S.
                      #6
                      Re: LG 43UK6470PLC - no image

                      same tv, maybe try blocking same pins as pi3141592 did in post #2, might not work but worth a shot.
                      Quit because THIS SITE LETS A ROGUE MEMBER TYPE ANY GARBAGE HE PLEASES AND THE POWERS THAT BE NEVER DO ANYTHING ABOUT IT SO HE NEVER QUITS. THEN YOU GET A PENALTY FOR RESPONDING TO HIS ATTACKS. BEEN GOING ON FOR WAY TOO LONG. DONE SUPPORTING A SITE THAT ALLOWS THIS BS.

                        Comment

                        • note_fritz
                          New Member
                          • Apr 2013
                          • 3
                          • Portugal
                          #7
                          Hi All,

                          Can someone please upload the bios fie for this TV / MAIN BOARD ?

                          LG 43UK6300PLB MAIN EAX67872805(1.1) DUMP BIN BIOS EEPROM 32KB

                          I have a TV here from a client thar has all voltages and the Pilot red light but cant turn on neather with the remote control.

                          Thank you                           ​

                            Comment

                            • lotas
                              Badcaps Legend
                              • Jan 2016
                              • 4639
                              • Russia
                              #8
                              Originally posted by note_fritz
                              Hi All,

                              Can someone please upload the bios fie for this TV / MAIN BOARD ?

                              LG 43UK6300PLB MAIN EAX67872805(1.1) DUMP BIN BIOS EEPROM 32KB

                              I have a TV here from a client thar has all voltages and the Pilot red light but cant turn on neather with the remote control.

                              Thank you
                              LG 43UK6740PLA EAX67872805(1.1)

                              ​
                              Attached Files

                                Comment

                                • note_fritz
                                  #8.1
                                  note_fritz commented
                                  12-06-2023, 06:31 AM
                                  Editing a comment
                                  Hi Lotas.

                                  Thank you very much
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