I have yet to find TV techs respond here. But if you are into repair, the first thing you need is the service manual.
The bad news is that Vizio doesn't appear to repair sets. They replace them. See if Shopjimmy has parts and maybe a manual.
TV turns on and a small cloud of white gradient appears that grows where usually the logo would be. Can't see logo but screen turns black for a second (usual process) and white cloud appears again and streams until entire screen is off-white.
Menu doesn't come up but I do hear sound.
Any ideas? Hope it's not the screen.