I have a Goodmans LD3265D1 and no picture?

I bought a Goodmans LD3265D1 which has been working perfectly for the last 18 months I went to switch it on as usual and now have sound but no picture not even the menu or no display comes up! I've checked it isn't the connection to the virgin box which seems to be working fine as I have connected my portable fine! I have no picture not even wit the the DVD player just a black screen!