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Vizio M65 Everything works just not at the same time-

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    #1

    Vizio M65 Everything works just not at the same time-

    https://youtu.be/c1d8HeIPbnM

    Here is a video I recorded. The "clicking sound" is my 6 year old so disregard that.

    As you can see the lights all work just not at the same time. I have replaced the PS, Mainboard, Tcon and have tested all leds. I am wondering if maybe there are some bad caps on the PS that is causing this to happen but I am clueless. I have repaired about 15 tv's so I am familiar enough with the typical troubleshooting but at this point I am lost. Any suggestions are welcome.

    Also this issue was prior to my starting the update. I was told by someone the update would fix it.. it did not.

    Also I have lowered the LED backlight down and the brightness.. Also shut off any kind of adaptive lighting. Still the same issue.
    Last edited by juliusvichinsky; 09-09-2018, 02:32 PM.
    Tags: None
    #2
    Re: Vizio M65 Everything works just not at the same time-

    This issue can't be the main or tcon. To me its either the LEDs, the LED driver board or something in between these two (bad contact, something shorting out)...

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      #3
      Re: Vizio M65 Everything works just not at the same time-

      It is likely the led driver board, what is the complete model number or what is the led driver board number?
      is it 0171-2471-0103 or 0171-2471-0122 or label number 3665-0072-0111(2A)
      Last edited by R_J; 09-09-2018, 08:21 PM.

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        #4
        Re: Vizio M65 Everything works just not at the same time-

        Originally posted by R_J View Post
        It is likely the led driver board, what is the complete model number or what is the led driver board number?
        is it 0171-2471-0103 or 0171-2471-0122 or label number 3665-0072-0111(2A)

        I have already replaced out the driver board and the same problem exists. Possible two bad boards...

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          #5
          Re: Vizio M65 Everything works just not at the same time-

          I have replaced the PS, Mainboard, Tcon and have tested all leds
          Well there is nothing left if you replaced ALL the boards, how did you test the leds?

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            #6
            Re: Vizio M65 Everything works just not at the same time-

            Well as it turns out your feedback was all helpful. I started from point A again and went item by item. I found that the LED driver board I ordered was not the correct one. The difference of 1 number in the middle of the secondary board number (so the stamped board was identical). This board is not compatible and so I have ordered a new board. Ultimately my own fault for not double checking. I hope the correct board will resolve the issue.

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              #7
              Re: Vizio M65 Everything works just not at the same time-

              good luck and report back when you get the new driver board!

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