HUMAX 9200T not responding?

I have a humax 9200T, this evening when switching it on it does through the usual initiation, the last channel appears on the screen (in this case CBBC) but then noting more and the unit display reverts to blank other than the small TV wording, any thoughts, is there a hard reset option but we cannot get into any menus via the remote, none of the units buttons respond on the front panel, have tried main power off but no joy...........