Chosen Solution
I have sound but no picture
@payasopachuco could be a power board, main board or t-con board issue. The first thing you want to check is your backlight. In a darkened room set the TV to a channel that is working (listen to the sound). Then use a flashlight and angle the beam against the dispaly, see if you can make out silhouettes, shpes etc. If so, you know that it is your backlight that may have failed (power board first suspect). If not then you want to remove the back of your TV and check all the boards for obvious damage, like chared looking components, leaking or domed looking caps etc. Vizio has a run in with poor connections. Check all the ribbon cables and check the ribbon cable connectors. Make sure that the solder is still in place etc. After that you will have to get a meter and check the connectors. Vizio does not share their schematics etc. so you will need to post some good pictures of your boards with your question. That way we can see what you see. Use this guide Adding images to an existing question for that
