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Raveena: Thank you for purchasing the TU7000 TV and for your review. I am very sorry to hear that you are experiencing issues with your screen randomly going blank. There are a number of reasons this may be happening. • Cable connection problem: Your Samsung Smart TV is likely to have a black screen issue due to the cable connection problem. Loose connections, damaged cables or inactive power sources are the probable cause of the problem on your TV. • Sources issue: Moreover, the issue could be caused by the problems associated with the sources such as DVD player, cable box or other external sources. To find out whether the problem is with the sources, press the Menu button on your remote. If the menu appears on the screen of your TV, then the problem is with the sources. • Inputs setting problem: The black screen issue could be due to the inputs setting problem. Your TV might be set on a wrong input. Ensure that your TV is set to the correct input to avoid this issue. • Firmware update issue: Your TV screen might be having a black display due to the obsolete firmware. The firmware, therefore, needs to be updated to solve this issue. • Sleep timer/power saver mode: In cases where your TV randomly goes black, the issue could be due to the sleep timer or energy-saving mode being on. Consider turning them off to see whether the problem is solved. • Hardware failure: Also, your TV might be displaying a black screen due to the hardware failure. This could be a faulty circuit board, faulty TV panel or faulty LED on TV. For this case, you will need to seek for professional service to have your TV fixed. Should you need assistance, please contact Samsung Customer Support. 1-800-SAMSUNG (8AM -12AM EST, 7 days a week) On the Samsung website and click on the SUPPORT link in the upper right corner for: 1) Contact Us Options (LiveChat, Remote Support, Facebook, Twitter) 2) Product Support 3) Manuals and Downloads 4) Warranty Info 5) Product Registration: Registering your product gives you access to easy warranty support, convenient opt-in to special promos and offers, faster troubleshooting and service, and quick notification of system updates 6) Samsung Community: A great resource for getting help from Samsung moderators and customers and more 7) …and more product, repair, order, and care options ~ Samsung Solutions