Vizio e472vl main board

Thanks for the info, buzzing sound and lower sound level indicates problem is with sound processor chip on main board of TV, either the processor chip isn't getting proper 12V DC from power supply board or the processor chip has got internal issue and causing all these symptoms. It needs further troubleshooting to determine what is bad. my vizio model e472vl keep shuting itself off about every my vizio model e472vl keep. my vizio model e472vl keep shuting itself off about every 20 minutes we had a power outage is there somthing we can do Show More. Show Less. Ask Your Own TV Question. Share this conversation. Answered in 1 minute by 12262013. TV Technician Aric, Technician. VIZIO E472VL 47 Inch Class Internet Sale Buying Panasonic VIERA TC P65GT30 65 Inch Plasma . The last thing to consider when looking at TVs will be connectivity. Most High definition tvs come with at least High definition multimedia interface and S-Video connections, nevertheless depending on your needs, a lot more connections may be needed. It.