model DTI6300 has lost reception and picture from hard drive?

Hi
My thomson freeview record box seems to have lost its reception, so i am unable to record anything new. there is nothing wrong with the reception in my house as all the other tv's have no issues. Is there a fix for this or do i have to bite the bullet and purchase a new box.
Also the hard drive seems to be playing up as it won't let me view any of my recordings. i
have seen the postings regarding capacitors but not sure if this will fix my problem.
hope somebody can help.