Unless someone has changed the outlet, it should have a very small button. There are two coax connection, one for TV (Which is from the antenna). The other should say cable. To the right of these you will find a very small button. The green light should illuminate when the booster is on. That means you should be using the TV coax connection. With the light off, mean you are connecting to a cable connection. This connection for cable is in the compartment where the power cord is located. When you open the door, it is on the upper left wall. You will see a phone connection and a cable connection. Some have a cable connection on the wall behind the Kitchen slide wall, as well as a place to plug a phone. Hope this helps, let use know what you find, it helps others.
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