Samsung PN51D490A1DXZA - Manual (Page 210)

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English
Issues Solutions and Explanations
No Picture, No Video
The TV turns off automatically.
• Ensure the Sleep Timer is set to Off in the System menu.
• If your PC is connected to the TV, check your PC power settings.
• Make sure the AC power cord is plugged in securely to the wall outlet
and the TV.
• When watching TV from an antenna or cable connection, the TV will
turn off after 10 - 15 minutes if there is no signal.
RF (Cable / Antenna) Connection
The TV is not receiving all
channels.
• Make sure the coaxial cable is connected securely.
• Please try Plug & Play (Initial setup) to add available channels to the
channel list. Go to MENU - System - Plug & Play (Initial setup) and
wait for all available channels to be stored.
• Verify the Antenna is positioned correctly.
The picture is distorted: macro
block error, small block, dots,
pixelization.
• Compression of video contents may cause picture distortion, especially
with fast moving pictures such as sports and action movies.
• A low signal can cause picture distortion. This is not a TV problem.