The message relates to your receiver or TV input.
Before checking the following:
Remove the control panel from the R6 / 7 after the system has been aligned and optimized!
Individual receiver connected to your TV:
- Check if the correct source input has been selected from your TV.
- Press Source on the TV remote control and select the receiver input (HDMI)
- Check the connectors and coaxial cable between receiver and antenna
TV with built-in receiver:
- Check the connectors and coax cable between receiver and antenna