Changing video resolution on Topfield TF7710HD

[dwevans]

I've got the above receiver but I cant change the video resolution on it. When I press the V.Format button it comes up as 520I and it won't change. In the A/V Output menu Video Format is in white writing and I cant highlight it to change it. Is my receiver faulty?

[dwevans]

No need to reply guys, sorted now, I had a switch on the back in the wrong position and the instructions weren't very clear about it.