Hi Mick,
What is the exact type of your i-Tec USB graphics adapter?
Note that only USB 2.0 graphics adapters, e.g. the i-Tec "USB2HDTRIO", work on Genos and PSR-SX models, i.e. USB 3 adapters cannot be used.
With a suitable graphics adapter, you should get a picture on an external TFT display or TV with HDMI or VGA input. If the TV has several HDMI inputs, the currently used input of the TV must of course be selected.
In the Speaker/Connectivity display mentioned by Adam (acparker) you can set whether the Genos display is mirrored on the external display, or whether text/lyrics are always displayed there (after the USB graphics adapter has been connected to the back of the Genos).
By the way, the Genos graphics adapter cannot be connected directly to a computer or tablet, since these usually do not have a video INPUT, but their HDMI socket is only an OUTPUT.
Best regards,
Chris