42" Vizio No pix, No sound

[CoogarXR]

Originally Posted by Geoff Bourquin

On the mainboard there are some little fuses right next where the power enters the board. Check those. I'm not sure if it is this model, but sure sounds right: One of those fuses opens up because it wants to. 2 amp I think. These are surface mount fuses, and about the size of a grain of rice. Probably square cross section and about 1/4 inch long. Another thing I see on Vizio mainboards is failure of the little 3 terminal regulator chips scattered all over the place. If the TV turns on and just sits there not doing anything more, not even turning off it may be one of those. they tend to put out 1.25,1.8, 2.2, 3.3 volts, stuff like that. Good luck

That's the GV47L that is prone to the fuses blowing. On the GV42, I would second the suggestion to look for a bad power supply or mainboard. I have two of this model to look at this week too. I saw them in my queue.