A blank screen on your Samsung television can be caused by several factors. In some cases, you can troubleshoot and fix the problem at home. In others, a blank screen indicates the TV is dead or in need of professional service.
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When the screen of your Samsung TV is blank and unresponsive, check the connections between the TV and the power source, the cable box, the DVD player and other auxiliary devices. Loose connections or inactive power sources are frequently the culprits behind unresponsive TVs.
After you determine that all the connections are secure, turn on the television. If it powers on but the screen is still blank, press the Menu button on your remote. If the Menu appears on your TV, then the television is in fine working order, and the problem has something to do with the source — such as a cable box, DVD player or computer.
If this is the case, the TV might be set on the wrong input, the source device might not be powered up or the connecting cable between the two devices could be faulty. Press the SOURCE button on the remote to see the inputs, and play around with the input settings, plug in different devices to test for video, or try a different cable to connect the source device to the TV.
In rare cases, your TV's sleep timer could be activated and causing your TV to turn off randomly. Check the Sleep Timer settings in your television's Setup menu.
If none of these basic fixes solves the problem, there could be something wrong with the television itself and only a trained technician can diagnose and repair it.
According to CNET, a common problem with Samsung TVs involves the capacitor inside the TV. Television sets with this particular problem won't power up properly or show a picture. Instead, the TV's red standby light flickers and the TV itself emits a clicking sound. Sometimes, the TV comes on after a period of time -- from 30 seconds or five minutes to a half hour. Other times, the screen stays black.
In 2012, this clicking capacitor problem became the subject of a class-action lawsuit. Following the lawsuit, Samsung agreed to fix the affected models for free. The capacitor issue mostly relates to models released between 2006 and 2008.