Samsung PN51E490B4F E-Manual page 183

Issues
There is no picture/video.
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Solutions and Explanations
• Check the cable connections. (Remove and reconnect all cables
connected to the TV and external devices).
• Set your external device's (Cable/Sat Box, DVD, Blu-ray etc) video
outputs to match the connections to the TV input. For example, if an
external device's output is HDMI, it should be connected to an HDMI
input on the TV.
• Make sure your connected devices are powered on.
• Be sure to select the TV's correct source by pressing the SOURCE
button on the remote control.
• Reboot the connected device by reconnecting the device's power
cable.
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