The cables could either be loose or need to be replaced for your TV or the connection ports are broken. The LED lights or the T conn board could be causing the TV screen to flicker.
The T-con board sounds like the most likely issue on your Vizio. Typically if the video signal is being sent to the T-con, then the t-con resolves it into the format required by the LCD screen. In this case since part of the video is fine and the part is snow/static, I would suspect the T-con. Is it perfectly half the screen? Typically there are two connectors out of the t-con to the LCD, so one if one of those is loose or going bad, then that may be the issue as well.
Try a forced reboot...disconnect the power cord either from the back of the TV or its outlet, at your convenience. Then, press and hold the power button on the TV for 3-5 seconds. Finally, plug the cord back in and turn on the TV.
Best to you.
With the TV turned on, press the menu button and shine a bright flashlight on the screen at a shallow angle (about 20° from parallel to the screen). Move it around - if you can see the menu or other material where the flashlight is pointing, you have a backlight failure. This may be either in the power supply, or the backlight itself (sadly, with LED backlights, it's usually a blown LED).
Hi,
the accessories replacement was a smart move. Please attempt to run a channel scan before updating your tvs firmware. Otherwise, I would run a factory reset on the tv and watch for the display-color issue again.
Thank you.
This is a common problem with Vizio TVs. The problem is usually caused by the tv's firmware. You can try updating the firmware, but if that doesn't work, you'll need to contact Vizio customer support.
It's actually the panel that's bad, not the board, one of your clock lines are shorted but it can be fixed with a piece of scotch tape by masking off the correct clock line, there should be 8 of them and it will give a decent picture just using 7, there are some youtube vids that describe how to find the pin to block if you want to dig into it.
Have you tested power supply voltages, that would be a great place to start, should have been done before throwing boards at it verses just guess what's wrong. Look at the legend on the power supply, start by testing the 5 volt supply, if that's missing the set will be totally dead
Hi,
I would have attempted a system software update first once the screen went black. I would also disconnect all accessories. Then, if still failing, I would schedule a repair with a tv repair shop because it's dangerous to deal with internal portions of the tv as a consumer.
Thank you.
Hell0, have you tried using a different HDMI input and HDMI cable? If you do and still have the same issue, it may be the eeprom on the main board going bad. Try doing a software update, some updates rewrite the eeprom and it may take care of this issue, otherwise the main board will need to be replaced. Thanks Techman 57
Hi,
please double check that you haven't' "muted" the display or accidentally switched to a different HDMI input.
Fuse might be near the power supply board.
Thank you.