User Manual (user Manual) (ver.1.0) (English, Spanish)
Page 57
...receiver, VCR, etc.). HD channels sometimes broadcast Standard Definition (SD) programming, which can cause black bars. Your cable box may need a firmware upgrade. Problem Possible Solution Poor picture. Try another channel. Unplug the TV for 30 seconds, then try this list of units connected to your nearest... Samsung service center. Make sure the wall outlet is High Definition (HD). Clean the upper edge of these values with your cable/satellite...
...receiver, VCR, etc.). HD channels sometimes broadcast Standard Definition (SD) programming, which can cause black bars. Your cable box may need a firmware upgrade. Problem Possible Solution Poor picture. Try another channel. Unplug the TV for 30 seconds, then try this list of units connected to your nearest... Samsung service center. Make sure the wall outlet is High Definition (HD). Clean the upper edge of these values with your cable/satellite...