Question about Vizio smart tv Qwerty keyboard remote for Almost all Smart TV--- e502ar xvt3d554sv E390i-A1 e390i-a1 E500i-A1 e500i-a1 M501-A2R m501-a2r xvt 423sv m420sv m470sv m550sv m420sl m470sl m550sl m420sv m470sv m550sv m370sr m420sr m420kd e551va e422
Vizio LCD TV won't stay on or display picture
Posted by Anonymous on
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Posted on Jan 02, 2017
this could be one of two problem. first, check if you have back light. If you do then the problem is with the M/B. Second, if you don't have back light then the inverter is bad and needs to be replace.
Posted on May 20, 2009
I had this exact problem on my Vizio 47" HDTV. I removed the speakers and all the screws on the back cover. Took the cover off and located the fuses on the largest circuit board. The are in the upper right hand corner of the board. There are 3 of them in a row labeled LF 1.5, LF 3.0 and LF 3.0. The are white in color with copper ends. I took a volt meter and measured continuity across all fuses individually and found the LF 1.5 to be blown. The guy at the electronics store sold me a barrel 1.5A fuse and told me to soldier it across the top of the blown fuse. It took an extra set of hands but the TV works perfectly.
Posted on Jun 23, 2009
SOURCE: Vizio VO420E 42 in. LCD TV
the problem its the main board of the tv not the power supply board.the main one controls all your imputs tv av component etc the cheapest place to find it its at www.shopjimmy.com cheaper than the manufacturer and those dudes that you find online that charge an arm and a leg just to come and just repair your old main board mine as well buy a new one at this site for less ok and you are welcome
Posted on Apr 13, 2010
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