Only works if both output sources are ON

I ordered this to split the signal from my AV receiver to my projector and a flat screen that is behind the projector screen and used for normal day-t-day use. The projector is fed from a 50 ft cable--I ordered this item specifically because it was one of the only ones I found that specified it was okay to use up to that distance. After plugging the cables in, following the exact instructions, the only way I could get the projector to work--is if the TV was ON. When I turn the TV off, the projector signal turns off as well. Obviously I do not want something where I need both output sources to be on at the same time. I contacted the seller and they indicated that you should be able to operate both independently--so they mailed a replacement model. Unfortunately, I have the exact same problem with the second unit. It does not appear that this will work for my set up.

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