Chosen Solution
What type of cable is needed to connect the tablet to a TV? HMDI from tablet to TV results in “signal not found”. (Yes, the TV is set to HMDI for input). Thank you for your help.
Are you using the HDMI port on the device itself? It could be a Micro or Mini HDMI.
On your RCA tablet go to settings, click on display and then configure HDMI settings.