English - 4Signal StrengthOKEnter ReturnSupportSelf DiagnosisPicture TestIf you think you have a picture problem, perform the picture test. Check the color patternon the screen to see if the problem still exists.Does the problem still exist with this test photo? appears on the screen.If the test pattern does not appear or there is noise in the test pattern, select YesIf the test pattern is properly displayed, select NoYes: There may be a problem with the TV. Contact the Samsung Call center.No: There may be a problem with your external equipment. Please check yourconnections.If the problem still persists, refer to the external device’s user manual.Sound TestIf you think you have a sound problem, please perform the sound test. You can check thesound by playing a built-in melody sound through the TV.Does the problem still exist with this sound test? appears on the screen.If during the sound test you can hear sound only from one speaker or not at all, selectYes.If you can hear sound from the speakers, select No.Yes: There may be a problem with the TV. Contact the Samsung Call center.No: There may be a problem with your external equipment. Please check yourconnections. If the problem still persists, refer to the external device’s user manual.If you hear no sound from the TV’s speakers, before performing the sound test, make sure Speaker Select is set to TV speakerin the Sound menu.The melody will be heard during the test even if Speaker Select is set to External Speaker or the sound is muted by pressingthe MUTE button.❑N••N••NNSelf DiagnosisPicture Test ►Sound TestSignal StrengthReturnEnterMoveSelf Diagnosis ▶Software upgradeHD connection GuideContact SamsungSupportSignal Strength (Digital)Unlike analog channels, which can vary in reception quality from snowy to clear, digital(HDTV) channels have either perfect reception quality or you will not receive them at all.So, unlike analog channels, you cannot fine tune a digital channel. You can, however,adjust your antenna to improve the reception of available digital channels.If the signal strength meter indicates that the signal is weak, physically adjust yourantenna to increase the signal strength. Continue to adjust the antenna until you findthe best position with the strongest signal.N