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    Sharp LG Vizio edge led tv repair tips.

    Sharp LG Vizio edge led tv repair tips.

    Sharp LC60LE660U power does not turn on. Because the protection circuitry has been activated three times consecutively by edge LEDs failure. Push Vol down, channel up to reset.

    Easy as 1-2-3. (for PRO only)

    1. make sure the problem is Eled strips.
    By push Vol down, channel up and power trick to start it, you will see the screen blink briefly. Dummy tester at post #7
    https://www.badcaps.net/forum/showthread.php?t=58769

    2. Used 852D hotair gun change the bad LEDs. Temp: 475F air:2

    3.reset again & update the TV .


    Conclusion: Not knowing the TV at shutdown mode, as a module Tech am I , I ordered the all boards still not fix the TV. I am hoping someone does not make the same mistake like I did. After this lesson, I've fixed more than 10 of them.

    service manual LC-52LE640U,C6400ULC-60LE640U pdf
    Attached Files
    Last edited by capwizard; 12-13-2016, 11:17 AM.

    #2
    Re: Sharp LG Vizio edge led tv repair tips.

    Hello Capwizard,

    I wonder if you can help me. I have a Sharp LC60LE660U that doesn't power on and I suspect it is the same problem you describe here. How much dissassembly is required to access the leds and change the bad ones? Also which leds do I need to get? I checked the service manual but it doesn't say.

    Any help you can provide would be greatly appreciated. Thank you!

    Comment


      #3
      Re: Sharp LG Vizio edge led tv repair tips.

      This where a 50 volt @ 5 amp Lab power supply comes in handy I bought one about a year ago because I had a LED module I need to test because I thought it might be the power supply problem and I was right
      9 PC LCD Monitor
      6 LCD Flat Screen TV
      30 Desk Top Switching Power Supply
      10 Battery Charger Switching Power Supply for Power Tool
      6 18v Lithium Battery Power Boards for Tool Battery Packs
      1 XBox 360 Switching Power Supply and M Board
      25 Servo Drives 220/460 3 Phase
      6 De-soldering Station Switching Power Supply 1 Power Supply
      1 Dell Mother Board
      15 Computer Power Supply
      1 HP Printer Supply & Control Board * lighting finished it *


      These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10%

      1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later )
      2 Hem Saw Computer Stack Board

      All of these had CAPs POOF
      All of the mosfet that are taken out by bad caps

      Comment


        #4
        Re: Sharp LG Vizio edge led tv repair tips.

        ok, I checked the leds (finally dug in) and to my surprise, none of them are bad. I powered the tv without the panel and they all come on bright and stay on. So my problem is not the leds.

        What do you think it could be, as when I power on, all I get is a flash of the backlights and then the power on led stays on white without blinking of any sort. I can even turn the tv off with the remote control. What else could it be?

        Comment


          #5
          Re: Sharp LG Vizio edge led tv repair tips.

          Can you please provide some pictures of the the boards in this tv
          9 PC LCD Monitor
          6 LCD Flat Screen TV
          30 Desk Top Switching Power Supply
          10 Battery Charger Switching Power Supply for Power Tool
          6 18v Lithium Battery Power Boards for Tool Battery Packs
          1 XBox 360 Switching Power Supply and M Board
          25 Servo Drives 220/460 3 Phase
          6 De-soldering Station Switching Power Supply 1 Power Supply
          1 Dell Mother Board
          15 Computer Power Supply
          1 HP Printer Supply & Control Board * lighting finished it *


          These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10%

          1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later )
          2 Hem Saw Computer Stack Board

          All of these had CAPs POOF
          All of the mosfet that are taken out by bad caps

          Comment


            #6
            Re: Sharp LG Vizio edge led tv repair tips.

            Absolutely, I will have to put it back together first and then I will take photos of the boards and post them. Should I start another thread? Tks Sam!

            Comment


              #7
              Re: Sharp LG Vizio edge led tv repair tips.

              Here are the photos Sam. If you think they are not sharp enough, let me know and I will take better pictures in daylight (it's getting dark here in Canada)

              Tks,

              Ray
              Attached Files

              Comment


                #8
                Re: Sharp LG Vizio edge led tv repair tips.

                Sam, I started a new thread in the right forum here:

                https://www.badcaps.net/forum/showthread.php?t=71144

                Comment

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