Question about Vizio L32 32 in. LCD HDTV

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Hi I have a l32hdtv10a that blows fuses on the power supply board.Is it the power board oanother board blowing the fuse? Or do I just install a higher amp fuse? Please help Tony

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  • dbourg69 Oct 12, 2010

    My question still stands.

    If the power is connected to the power board and nothing else is connected and the fuse blows,is the problem the power supply board?

  • dbourg69 Oct 12, 2010

    Hello
    My power supply on my flat screen blows the fuse as soon as it is energized.I removed all out going loads from the power supply.Does that indicate that the power supply board needs to be replaced?
    Thanks Tony

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2 Answers

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  • Vizio Master
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Yes, if nothing is connected to the power board but the fuse still blows then the short (and a big one) is definitely in it - replace it with a new one, this one is dead as a dodo.

Posted on Oct 12, 2010

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  • Master
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Hi,

NEVER EVER replace a fuse and think that the fuse will blow all by itself. The fuses are there to protect the set from catching on fire.In case there is a short inside the set. Now in some cases an intermittent short can work after you replace the fuse but if its burnt black or brownish, there is a short inside the set in one of the circuits. always use a 100 watt light bulb across a blown fuse if your not sure if there is a short. if there is, the light will absorb the short and glow bright. if there is no short the bulb will glow bright , then go down very dim. you could have a main power supply problem, such as shorted bridge rectifiers,shorted main b+ capacitor, Hot could be shorted, or the Vertical or audio output IC could be shorted.

If you have experience in repairing electronics, you could take a help from a service manual to find the values of different components to make sure that they are not out of order.You could buy the service manual from :-

http://www.servicemanuals.net/ServiceManual/VIZIO/l32hdtv10a/pos1/results.aspx

Let me know,if needed further assistance.

Hope i helped you.

Thanks for using ' Fixya ' and have a nice day!!

Posted on Oct 11, 2010

  • taran_2005
    taran_2005 Oct 12, 2010

    Thanks for your response!!

    Most of the times, it's not the case.

    Let me know,if needed further assistance.

    Hope i helped you.

    Thanks for using ' Fixya ' and have a nice day!!

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