How can I fix my apro AL191OT?

I have a Apro 19" serial number AL-191OT. when I turn the tv on it does straight to Radio and not TV it has been fine up until now with going straight to DVB freeview but now it comes onto radio, you can type in a channel number and it will go to that channel but if you try and use the up and down buttons to turn the channel it will go back to radio so unless you know that channel number you cant flick through. the menu is blank when I push the menu button so cant setup or retune