Question about Vizio VO47L 47 in. LCD TV
I opened the back and looked it over. It's beautiful, no burns or swollen caps, etc.
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Posted on Jan 02, 2017
SOURCE: Vizio GV42L 42inch LCD/HDTV
there are several possibilities. first if the unit comes on and the "VIZIO" light turns white, but no picture or sound, then the main control board is most likely the issue. could be the LCD control board(s) depending on model one or two. and ultimately could be the power supply on the upper side....if the "VIZIO" light does NOT turn white, the whole power supply unit is out. after that, would have to scope the circuits to find out. Seems that the control board is the most common and tends to happen on many different sizes. new board will be around $350.00. Might get lucky and find a used one, but it MUST be EXACT part or it wont work right. if you dont find one or want to sell yours for parts, id be interested in the screen. can reach me at email@example.com. thanks, keith
Posted on Aug 10, 2009
Most LCD tv's having a lot of bad caps in the power supply ,that makes for really weird things happen, since they work like a computer during boot. For that 2-3 second "boot" the processor in the set checks for a combination of things and if those caps go bad in the supply the set will show a wide variety of symptoms.
Usually the set won't start for a minute or two and sometimes longer, after that comes some weird things like lines and what not and the set finally just won't come on period.
I could write a book about how simple fix like changing a few caps causes all kinds of phenomena..lol
Posted on Apr 09, 2010
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