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Vizio E550I-B2E

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    #1

    Vizio E550I-B2E

    Hi everyone I have a set here that wont turn on at all. It has a white standby light but when you press power it acts like it wants to turn on by the light going off but nothing. You guys have any suggestions a tested the led strip with a led tester all is good there. So Now I'm wondering if its the psu, mainboard or tcon? thanks guys. I will upload pics of anything you guys want no problem.
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    #2
    Re: Vizio E550I-B2E

    Most likely the same problem, to solder the plug
    https://www.youtube.com/watch?v=paeXXLvQhCk
    https://www.youtube.com/watch?v=6u315asn_OA

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      #3
      Re: Vizio E550I-B2E

      Yes its funny I took out the boards to find the connector was completely loose omg problem fixed thank you. That was my issue not often in tv repair is it this easy and free. thanks guys.

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        #4
        Re: Vizio E550I-B2E

        Yes, along the way, this is their typical malfunction.

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          #5
          Re: Vizio E550I-B2E

          Easy Peezy, I've found or bought many of these for pennies and fixed for nothing. Glad you fixed it.

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            #6
            Re: Vizio E550I-B2E

            Good way to make some extra money for sure thanks guys.

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              #7
              Re: Vizio E550I-B2E

              just found one of these on curb. WOW - what an easy fix. So what makes the connector solder joints go bad ? Is there a way to make sure this doesn't happen again ? Obviously this board was made CHEAP. horrible soldering on connector and rest of board.

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                #8
                Re: Vizio E550I-B2E

                I took out both boards and resoldered both the male and female connectors probably bout 8 through hole on each connector just resolder the entire both connectors with FLUX AND GOOD LEAD SOLDER. finish with ipa alcohol cleaning tooth brush. Tighten all the ground screws in tv as well

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                  #9
                  Re: Vizio E550I-B2E

                  did all those things and soldered xformer pins also. curious why connector pins go bad.

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                    #10
                    Re: Vizio E550I-B2E

                    Originally posted by ajshoe View Post
                    did all those things and soldered xformer pins also. curious why connector pins go bad.
                    The design of the connector and lead free solder along with thermal expansion and contraction.
                    Did you remove all of the old solder or just added new leaded?

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                      #11
                      Re: Vizio E550I-B2E

                      added leaded solder. I should have removed the lead-free solder. I did touch up all the connectors and xformer. Its an easy access - probably have to do it again. seems like connection between boards should have been a short cable

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