Why does my television screen go dark at random? A defect concealed inside the HDMI cable; replace with a new High-Speed HDMI 2.0 cable. Replace the HDMI cable, since it may include a short or another flaw causing the black screen. Unplug the television for five minutes to reset it. Unplugging the television will reset it and resolve any temporary difficulties.
Why does the screen of my Samsung television go black but the sound remains? If your Samsung television has audio but no image, you must reset it. Unplug your television and wait a full minute. Press and hold the power button for thirty seconds while the TV is disconnected. After 60 seconds, reconnect your Samsung television.