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Vizio E500I-B1 : Power Supply Board Repair - 715g6100-p04-003-002h

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    Vizio E500I-B1 : Power Supply Board Repair - 715g6100-p04-003-002h

    I am troubleshooting why my TV will not turn on. It has been turning off randomly and now it will not power on. I believe I have traced the problem to be a bad Integrated Circuit on the power supply as well as a couple resistors connected to the IC. In my research i found that the IC9301 is what is responsible for the 5vdc standby power. I do not have 5vdc on the standby power terminals. So I am receiving a new IC from digikey today that I am going to install. However on the back of the board there are the two resistors that are connected to pin 1 of IC9301. Unfortunately I haven't been able to find a schematic or even a picture of the back of the board that would show me what value of resistor i need to get to repair it. Does Someone have this info? I have looked through the thread that has links for service manuals and not one of these sites has my TV model or a similar model that might use the same or similar power supplies.

    I have attached two pictures. one of the bad IC9301 removed from the circuit board. the other of the back of the board where i need to replace the resistors.
    Attached Files

    #2
    Re: Vizio E500I-B1 : Power Supply Board Repair - 715g6100-p04-003-002h

    Looks like they are both 1R2
    Attached Files
    Willing to help but I'm no expert.

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      #3
      Re: Vizio E500I-B1 : Power Supply Board Repair - 715g6100-p04-003-002h

      Thanks so much!! I couldn't find a clear enough picture of the back to see the writing.

      Comment


        #4
        Re: Vizio E500I-B1 : Power Supply Board Repair - 715g6100-p04-003-002h

        https://www.badcaps.net/forum/attach...6&d=1502902467
        You should also verify that fusible resistor R9301 is not blown open circuit when that SMPS IC blew up.
        Never stop learning
        Basic LCD TV and Monitor troubleshooting guides.
        http://www.badcaps.net/forum/showthr...956#post305956

        Voltage Regulator (LDO) testing:
        http://www.badcaps.net/forum/showthr...999#post300999

        Inverter testing using old CFL:
        http://www.badcaps.net/forum/showthr...er+testing+cfl

        Tear down pictures : Hit the ">" Show Albums and stories" on the left side
        http://s807.photobucket.com/user/budm/library/

        TV Factory reset codes listing:
        http://www.badcaps.net/forum/showthread.php?t=24809

        Comment


          #5
          Re: Vizio E500I-B1 : Power Supply Board Repair - 715g6100-p04-003-002h

          Hello my name is Alan and I live in Northern Virginia, I am a serial entrepreneur by day and and electronic repair newbie in my spare time. I just found this site this evening while looking for a schematic for my Visio flat screen TV. Hope everyone is having a great evening and take care.

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