Troubleshooting 1 63Remote control problemRemotecontrolproblemsRemove all obstructions between the remote control and the TV.Replace the remote control's batteries, see "Installing batteries" on page47.Your TV's remote control may not operate certain features on yourexternal device. Refer to the owner's manual for your other device todetermine its available features. If your TV remote control does notoperate a specific feature on another device, use the remote control thatcame with the device, see "Learning about the remote control" on page50.If the TV still does not act as expected, perform the Reset FactoryDefaults procedure, see "Resetting to Factory Defaults" on page 90.ChanneltuningproblemsEnsure that the remote control is set to the correct device mode, see"Learning about the remote control" on page 50.The Auto Tuning feature may have erased the channel from lnelnory. Toadd the channel to the channel lnelnory, see "Manual Tuning" on page67.The Lock feature may have blocked the channel. To unblock the channel,see "Unlocking programs" on page 79.If you cannot tune digital channels, check the antenna configuration, see"Initial setup" on page 52. If the problem persists, clear all channelsfrom the channel list and reprogram channels into melnory, see "Storingchannels in memory (optional)" on page 66. For additional information,see "TV stops responding to controls." on page 160. If the problempersists, use the Reset Factory Defaults procedure, see "Resetting toFactory Defaults" on page 90.