When the TV has trouble with the picture, these steps may help resolve the problem. 1 Open Settings, and select Support . 2 Select Device Care , and then select Self Diagnosis . Samsung UN50NU6900B. Hello, Part of the backlight on the TV doesn't turn on. I have no idea if it is a power supply problem or a LED strip problem. Shop for samsung led tv tv backlights strip at Best Buy. Find low everyday prices and buy online for delivery or in-store pick-up Press the “Source” button on your Samsung TV remote. Then, choose the correct input option. If your TV has several HDMI ports, you may try selecting all the HDMI input options one by one. Doing this will help you determine the correct input. After this, the black screen on your Samsung TV should disappear. Quality TV parts at https://patch1stripe.com/. TV repair parts you can trust and count on the first time to repair your TV. Our TV repair parts are new. Our For this Wiki a Samsung LS32D85K was used for demonstration purposes. More on the repair of this model can be found on here Samsung LS32D85KTSR Power Supply Replacement. Once the back panel is removed from the TV now, each type of flat panel TV will have a distinct set of parts. LCD TV’s typically contain these circuit boards: Main Board mRmSXS.

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