M
Michael Mud
Guest
I use a few of these boxes on older tv's. They are the ones Radio Shack sold. I like to use them with timers, which I program more than a day ahead. The a/d boxes ARE NOT PLUGGED into the timers. What I'm finding is that they shut down on their own, after sitting idle for a number of hours. Are they dependent on a tv being on to stay on? Is there a sensing circuit, or are they just old and tired. TIA.