Hi the tv just went to a white screen..nothing..what could be the issue..

Hi Ralph, you have a bad tcon board or a bad panel, this model had a lot of both panel and tcon issue, finding a board may be difficult and expensive.

I would check the power supply voltages for starters and see if they look good

My first thought would be to check your TV on multiple inputs to verify that it IS the TV and NOT isolated to your input cable(s). If you can get a solid blue color to come up on the screen by changing inputs then it would really narrow down the issue(s).
Hope this helps.

I think somehow that the input is changed. locate the input button on your remote and toggle between all the input to find your lost signal

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/tony_a41fa0b801734e2f

Try with the Mitsubishi remote the soft restart, set on Menu,1,2,3, and enter.

replace the main board

most likley a cable issue if you are using hdmi make sure its fully homed in same with the others but have you checked the display settings on your xbox? otherwise borrow another cable just to find out

same things happened to me...did you solve this?

Sounds like power board issues, if your able test the voltages coming out of it and see if they are correct

Very well could be the circuit board. What you describe is VERY common in newer tv's. The company says this supposedly this will be fixed in the new firmware they claim will be sent out soon. The only way you shouldn't experience it, is if I hook nothing to the HDMI input.

My solution is: You have entered a diagnostic color test. With the TV powered on, hold the 'Menu' & 'Enter' together, then press the power button.