Bad LED lamps in the panel
SOURCE: Have a scrolling/rolling video on screen of a
Fault with its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. http://electronicshelponline.blogspot.com/ . In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.
SOURCE: Vizio e701i-a3 problem. When I turn it on the
Very good chance it could have bad diodes. You will have to take the back off your TV and check to see if any have bad soder or need to be replaced
Try a hard reset to this set, and check. If it do not help you, contact any service technician.
There are two types of reset to TVs. The first is simple to do; a Hard Reset; and the other is somewhat skilled; is a Factory Reset (System Reset). To make it a hard reset, just unplug the TV from AC mains wall socket, and re-plug it back after 15 minutes or so. If you do this by overnight; will be better. If you want to make it a system reset [Factory Reset]; you have to enter its service mode option, and select the factory reset option. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Service mode entry, adjust and exit procedure to many popular brand TVs are given. Never forget to exit the service mode, after all adjustments have been done.
contact vizio,they may fix it for free
Probably a bad panel. Those vizios are terrible. I worked on a 55" that was 9 months old with the same problem. replaced all the boards, ended up having a bad panel. See if you have voltage on the wires going to the panel. if so, its most likely bad
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