I am posting this here in hopes someone can help. I have 2 ta-1 field phones. I cant get them to work. It seems pretty straight forward. Hook the wires up and you are good to go. Well one would send and receive and the other would only send. I took them apart per the manual, checked stuff and now they wont do anything. Does anyone here know anything about them or is there a place I can send them to get them repaired? Thanks.