We may have found other answers which could help you.
Click here for Display Lit RadioMy Robert Unologic won't work on the batteries but will on mains?
how do I fix the on/off button on DAB Roberts RadioTD 21?
Distorted sound when playing music?
roberts sport dab radio screen?
Roberts duo logic display backlight on but not working?
How can I fix my Roberts Unologic DAB radio?