@tonykipleting you listed your TV as an LG 17LX1R. That particular TV doesn't have an antenna. It has an antenna jack that is part of the main board.
[image|2933705]
If there are issues with the jack, you need to either replace the main board or try and find the part that is "broken" and replace it on the board. That will require some good tools and skills. So let us know what is going on with your TV.
For anything else, use the service manual [document|29128]