Many TV enthusiasts prefer the superior picture and sound quality that LCD and other types of HDTVs can offer. Just like any other consumer electronic, you will at times experience normal, minor technical problems with your LCD TV. To address these, you can have the TV looked at by an electronics store; you can call Samsung technical support and spend lots of time on the phone with a representative, but it is often better to learn to troubleshoot these problems on your own so as to be able to resolve minor issues without having to consult outside help or spend any money.
2.Reset the TV by unplugging its power cord from the outlet or surge protector into which it is plugged. Count a full 30 seconds and plug it back in. Again try to power on the TV.
3.Plug the TV's power cord into a different outlet in the home to test for a problem with an individual outlet. If you use a surge protector, plug the power cord into a different spot on the protector or bypass the surge protector altogether by plugging the power cord directly into an outlet.
2.Reset the audio and video cables that attach the device you are trying to watch to the LCD TV. After plugging the cables back in, turn the TV off and back on to force it to scan for new input connections, and again check for a picture.
3.Tune the TV to another video input into which another device is connected. If you see a picture now, troubleshoot the first device individually.
2.Reset the audio connection cables to test for any loose connections that may cause a loss of audio.
3.Press the "MTS" button to make sure you do not have a secondary audio setting activated on the TV. SAP (secondary audio programming) or MTS (multichannel television sound) can cause a loss of audio if the channel you are watching does not support those settings. Press the MTS button repeatedly until the TV screen displays "stereo."