Article ID : 00023588 / Last Modified : 06/03/2022

Some channels don't have signal when connected directly to cable or antenna

    Before You Start

    • If you're using a cable box, set-top box, or satellite receiver, a separate article about a TV displays no signal is available.
    • An LED light bulb placed near your TV may affect the ability of your TV to display some digital channels below channel 13. If any of these channels disappear while it's turned on, move or replace them.

    Solution

    Check the channel signal after each step. If model-specific information is required to complete a step, check your manual for details. Manuals are posted on your model support page.

    1. Make sure to connect the cable or antenna wire to the CABLE/ANTENNA input on your TV.
      • If you're using signal splitters for multiple TVs, the signal strength may decrease and as a result, your TV may experience a poor signal or no signal at all.
    2. Make sure your TV signal type is set correctly for Cable or Antenna.
    3. Perform the auto program based on your TV type.
    4. If the auto program doesn't work, manually program the channels of your TV.
      • If you can view some digital channels when entering them on the remote but can't store them, the signal for that channel may be too weak.
    5. Check for duplicate channels to see if you can uncheck the channel experiencing an issue and check the duplicate that's working fine:
      1. On the supplied remote control, press the (Quick Settings) or HOME button (depending on the model).
      2. Select Settings.
      3. Select Channels & InputsChannelsCable/AntennaShow/Hide channelsShown channels.
      4. Navigate up and down to select the check box for show channel, and unselect to hide channel.
        • Duplicate channels will be listed with similar names but different descriptors such as KTTV-DT (KTTV-Digital TV) and KTTV-NG (KTTV-Next Gen TV).
    6. Connect the antenna or cable to a different TV.

      Note: If you get the same issue with a different TV, the antenna or cable service is faulty.

    7. If you are using an antenna, try adjusting its position.
      • The type of reception that you'll receive will depend on the antenna type that you're using and how far a particular station is. Visit the AntennaWeb website to check which stations are available in your area and the recommended type of antenna to use.

    If the issue still occurs, repair may be required.  Go to Product Repair.