Samsung UN40D5550RF User Manual (user Manual) (ver.1.0) (English) - Page 277

Issues Solutions and Explanations RF (Cable/Antenna) Connection The TV is not receiving all channels. •• Make sure the coaxial cable is connected securely. •• Run Auto Program to add available channels to the channel list. Go to MENU - Channel - Auto Program then select Auto and make sure to select the correct Cable TV signal type. There are 3 options, STD, HRC and IRC. Most cable systems use STD. •• Verify the antenna is positioned correctly. No caption on digital channels. •• Check the Caption Setup menu. Try changing Caption Mode Service1 to CC1. ◀ •• Some channels may not have caption data. ▶ The picture is distorted: macro block error, small block, dots, pixelization. •• The compression of video contents may cause picture distortion, especially with fast moving pictures such as sports and action movies. •• A weak signal can cause picture distortion. This is not a TV problem. English