Checking the Digital-Signal StrengthUnlike analog channels, which can vary in reception quality from "snowy" to clear, digital (HDTV) channelshave either perfect reception quality or you will not receive them at all. So, unlike analog channels, you cannotfine tune a digital channel. You can, however, adjust your antenna to improve the reception of available digitalchannels.12Press the MENU button to display the menu.Press the A or vf button to select Channel, then press the ENTER button.Press the A or T button to select Signal Strength, then press the ENTERbutton, if the signal strength meter indicates that the signal is weak, physicallyadjust your antenna to increase the signal strength.Continue to adjust the antenna until you find the best position with the strongestsignal.Press the EXIT button to exit.You can also press the ENTER button to select OK then press the EXIT buttonto exit the menu.LNA (Low Noise Amplifier)if the TV is operating in a weak-signal area, sometimes the LNA function can improve the reception (a low-noisepreamplifier boosts the incoming signal).1 Press the MENU button to display the menu.Press the A or _' button to select Channel, then press the ENTER button.2 Press the A or T button to select LNA, then press the ENTER button.Press the A or T button to select Off or On, then press the ENTER button.Press the EXIT button to exit._-_ If the picture is noisy with the LNA set to On, setect Off._-- The LNA setting must be made separately for each channel.