my technika freeveiw tv has stopped getting a signal, is it a fault with th?

i have a 20inch technika lcd tv with built in freeveiw, its about a yaer old, it has been working fine then all of a sudden 3 weeks ago the screen went grey and says 'no signal' in the middle.\r\nyou can switch the tv to normal tele( 1,2,3,4) or you can have it on digital,the normal tele throgh the arial is working fine but nothing i do works for the digital.wont even bring the menu up to let me retune it,or scan for channels.
has the tv had it or is there something i can do?