[rames14]

I am not sure about the new ones, but ours has a 12v outlet right at the same place as the booster in the 3400RL. Look at where your TV cable connects in the bedroom. You will probably find a little black button right there. If the lights lit, the booster is on and no cable/satellite. If the light is out, you should be good to go if all the cables in the entertainment center are right.