Verify the correct antenna configuration (connected to TV or Viggo box) and configure remote accordingly.
If antenna is connected to the TV:
- Follow instructions for Setting remote control to Generic TV mode (TV operation mode).
- If after setting remote control to Generic TV mode CH+/- still does not work, check that the CH+/- button is properly IR trained for the installed TV and correct if needed (refer to Training Procedure for MK1, MK2, MK3 or Training Procedure for MK4).
If antenna is connected to the Viggo box:
- Follow instructions for Setting remote control to Viggo TV mode (DVBT mode).