Haier LE50M600 turns on but only for a split sec

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  • predator0357
    Senior Member
    • Jul 2014
    • 159
    • Israel
    #1

    Haier LE50M600 turns on but only for a split sec

    Hi
    got this TV to repair, it turns on but only for a split sec (flash).
    Any suggestions? what to check first and so on?
    Attached Files
    Tags: None
    • dick_barton
      Badcaps Legend
      • Aug 2015
      • 6642
      • Wales
      #2
      Re: Haier LE50M600 turns on but only for a split sec

      I would check the led output connector voltages and see if the voltage peaks then drops off quickly. Initially it is looking like a possible led(s) fault.
      You could also check you have the voltages on CON201
      Attached Files
      Last edited by dick_barton; 03-06-2021, 09:01 AM.
      Willing to help but I'm no expert.

        Comment

        • mmartell
          Badcaps Legend
          • Oct 2013
          • 3189
          • Canada
          #3
          Re: Haier LE50M600 turns on but only for a split sec

          I had a Haier tv with a similar looking power supply board as yours that had led backlight issues. Turned out the connectors for the led strings were intermittent at the board. Had to remove the wires from the connector, strip them back a little and solder direct to power supply board.

          Top right in your first pic. Maybe worth a look.

            Comment

            • predator0357
              Senior Member
              • Jul 2014
              • 159
              • Israel
              #4
              Re: Haier LE50M600 turns on but only for a split sec

              Originally posted by dick_barton
              I would check the led output connector voltages and see if the voltage peaks then drops off quickly. Initially it is looking like a possible led(s) fault.
              You could also check you have the voltages on CON201
              Did it and it peaks then drops to 21V
              On the con201 all V are ok.
              Did also what the one below said and nothing.
              But ther was something weird, one of the it work perfect but after i turn it down. It went back to not working😭

                Comment

                • predator0357
                  Senior Member
                  • Jul 2014
                  • 159
                  • Israel
                  #5
                  Re: Haier LE50M600 turns on but only for a split sec

                  Some1 pls help��

                    Comment

                    • dick_barton
                      Badcaps Legend
                      • Aug 2015
                      • 6642
                      • Wales
                      #6
                      Re: Haier LE50M600 turns on but only for a split sec

                      Did it and it peaks then drops to 21V
                      But what was the peak, maximum voltage reached?
                      Willing to help but I'm no expert.

                        Comment

                        • neilc6
                          Badcaps Legend
                          • Nov 2015
                          • 1550
                          • Canada
                          #7
                          Re: Haier LE50M600 turns on but only for a split sec

                          Flash of backlights in a LED TV is a symptom of bad backlights. https://techhometravel.com/lg-ln-ser...ed-backlights/

                            Comment

                            • predator0357
                              Senior Member
                              • Jul 2014
                              • 159
                              • Israel
                              #8
                              Re: Haier LE50M600 turns on but only for a split sec

                              /
                              Last edited by predator0357; 04-06-2021, 09:12 AM.

                                Comment

                                • predator0357
                                  Senior Member
                                  • Jul 2014
                                  • 159
                                  • Israel
                                  #9
                                  Re: Haier LE50M600 turns on but only for a split sec

                                  I decided to tear down the TV and found out that half of the backlight dont work, but there is V. In one pin there is 102V and other pin there is around 32V.
                                  When i disconnected the upper strip nothing works. with the ones that not working i also did it but still only the upper part flashes.
                                  Any sug'?

                                    Comment

                                    • dick_barton
                                      Badcaps Legend
                                      • Aug 2015
                                      • 6642
                                      • Wales
                                      #10
                                      Re: Haier LE50M600 turns on but only for a split sec

                                      Search Youtube which will show you how to test the leds. Plenty of videos online.
                                      Willing to help but I'm no expert.

                                        Comment

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