When I try to access the TIU I get an error that it can't find the TIU on COM3 so I tried letting it auto find it and the same thing. I tried 3 different TIUs and two different Laptops (all running Windows 10 if that makes a difference).
I'm pretty sure this is the same USB RGB cable that I've used in the past none of my TIUs are USB). Any ideas?
I'm not sure what an RGB-USB cable is (maybe just a monitor connector???), but what you need is a USB-A to serial adapter cable, such as a Gigaware O8AO6 from Radio Shack or a TrendNet TU-S9. Do you have the TIU powered up through the AUX port, and is the internal LED (near black variable 1 input post) lighted?
Note the TrendNet number is tee-you-ess-nine, not five-nine; not clear in the forum print.
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