Have a blue thin line middle of screen un46d6000sfxa

[Packard93]

1 Thin vertical Blue line . Model Un46d6000sxfa Led Samsung. It's was playing fine went go to kitchen cook came back to visible blue Line. I have always used HDMI to my computer

 

[Saga Lout]

I saw one on one of my screens the other day but not since. It's a portent of future failure but it might last quite some time before it goes completely.

 

[Packard93]

anyone know how to do the service menu test to check the hardware of tv to find the problem . I want to run a diagnostic in the service menu of the tv.What are the steps.