Question about Vizio E422VL 42 in. LCD HDTV
Sounds like either the switch relay or the inboard circuit breaker has gone bad.
Posted on Oct 23, 2013
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Posted on Jan 02, 2017
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 p42
had the same problem had the main powerboard replaced they were out of stock and had to send mine in and vizio referbed it I was told it was a common problem with this unit
Posted on Jul 28, 2008
SOURCE: Vizio shuts itself off
There may be some components failing in the power supply or one of the circuit boards that are causing too high a current pull.
I realize that this answer is very vague. Without doing proper diagnostics, it is impossible to guess at something like this.
Out of warranty repairs on these sets can be very expensive. I would suggest that if the set is going to be expensive to service, it would be best to replace it with a known brand name that offers an extended warranty with local service. You will pay more, but you will have dependability and better quality.
Posted on Jan 02, 2009
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
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