Question about Vizio VW42LF 42 in. LCD HDTV

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My screen went out completely black.i still have sound but no picture.checked all my connections everything is good..just no pic

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You can remove the back and check for bulged electrolytic caps on the power supply, you can also check to see if the power is putting out the right voltage, the the output voltage should be written on the power supply board by the connector. Also look at the inverter for cold solder connections.

Posted on Nov 11, 2010

  • datniggakent Nov 11, 2010

    how hard is it to change out the inverter? im almost positive that thats the problem..

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HI Bonnie,

If you have a good picture when it's on then it points to a dry joint on the circuit board, It is probably round the switching transformer section or the eht section but please be aware of the very high voltages stored in the capacitors and tube.

If you need any more help don't hesitate to contact me.

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