Question about Vizio VX42L 42 in. LCD TV

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Vizio VX42L HDTV10A No sound, No picture, logo lights up

That sums it up.... what troubleshooting can I do? I am electronics savy, and can diagnose and fix things, but have never been inside an LCD TV.... I have meters, scope, etc....\\thanks!

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Vizio VX42L HDTV10A No sound, No picture, logo lights up.

Posted on Sep 14, 2010

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It is a common problem that the main board is bad.

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Nothing works, so the common factor is the power supply and although the switching power supplies look different then the old ones, I think you can find the power supply and see if all voltages are still available. When you have opened it, check for bad connections and for bursted electrolytic capacitors.
Good luck.

Posted on Mar 31, 2015

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