Hooked many of these up, but never have I had the modulator just stop working. The dual mode is on and the TV2 LED is lit up.
This is what happened:

Everything worked perfect on TV1 (hitachi HDTV) and TV2 (older Toshiba 32"). Customer was hitting buttons on the RF Sat 2 remote and after that the picture is total snow. Not blue, not black. Snow only. My modulated channel is 22 and is set to AIR. I've reset the box several times, did a default reset, hooked a 13 in. Tv directly to the mod. output from the receiver and i still get nothing.

Had the modulator died? Or did the client somehow disable the modulated output? BTW, the composite output from TV2 works fine. He says it went out when he was playing with the page up and page down buttons. ???

Thanks for any input.