Question about Vizio L32 32 in. LCD HDTV

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Vizio 42 hdtv lcd no power

My son stuck a USB port into the phone jack in back of the tv then every thing went black. what should i do?

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  • taka20 Sep 29, 2008

    I have a 42" Vizio lcd. The TV does not turn on, The light at the bottom of the TV does not turn on at all. I have no power , Can this be a blown fuse?

  • caliah Nov 16, 2008

    same deal, only the squared off side of the usb cord was what was stuck into it. somehow, everything went black. get this, the usb cord was connected to ....nothing. could the metal to metal have caused some sort of short? he is telling no lie, mine was a total accedent. now we have no tv.

  • juliamc7 Mar 15, 2009

    I had the same thing happen....my husband plugged the hdmi cable into the svc plug in the back of the tv and the tv went black. It is dead. Any way to get power back? It is a Vizio HDTV LCD 32 in.

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Lol , technicaly it's not possible to plug a USB PORT , into an RJ45 Phone Jack lol

But lets assume he did manage to do just that.

A. Land Lines in the united states phone system use -48 volts of electrical power.
B. USB ports that provide power to USB devices use +5 volts of electrical power.

What you have described to me would suggest to me that your USB port has been overloaded
by the input of a much higher voltage sourse ( the phone line )


Some suggested steps

1. completely unplug the computers power cable for approximately 15 seconds.
2. plug the computer back up and press the power button.


If this fails you may now have a defective motherboard or a blown power supply.


You have some options at this point.


You can change the power supply and see if that solves the issue
If a new power supply does not solve the issue
you will need to change the motherboard.

My advice on changing the motherboard is that you replace ONLY the motherboard first.

If more things like the Memory or CPU are dammaged , you will then replace them as needed.

I feel very dissapointed that your son was unable to accomplish his computer hacking goals lol
perhaps when he is older he will make a fine Engineer.


Thank you for using FixYa!



Az.

Posted on Sep 19, 2008

  • Steven Brown Sep 20, 2008

    My solutions apply only to your computer



    if others post solutions for your TV



    I suggest only giving me a vote of helpful and rewarding THEM with the proper raiting.



    Az.

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Checked fuses inside the TV hopefully that was it, good luck

Posted on Sep 19, 2008

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Thanks for your help


You've most likely blown the fuse in side the set, so you might want to check it.


Az.

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