My Samsung UN55F7100AFXZA 3D TV has an issue where the backlight flickers in a small area only when displaying in 3D. Forum posts tell me this is due a failure in the power supply board that makes it unable to provide enough power to the backlight. I would like to be sure of this, as well as how to repair the power supply or where to acquire a new one.
You can view a video of the issue my television has here: https://photos.app.goo.gl/Mu1f6tEBVhpNjZk59
Thank you in advance for your help!