When I switch on the tv is comes up with no dvb channels, click ok to tune channels. When I do this it comes up blank and there are still no channels. I had a DVD player connected which I disconnected and this makes no difference. I realise that it is to do with the signal, but it is most definitely NOT the external aerial, because I have another tv in another room in the house connected to the same aerial and this does pick up a signal perfectly, so what is going on here? I can only assume it is the tv itself?
If you have another TV fed from the same antenna, I assume you have a splitter/distribution amplifier because you know you cannot just join two cables together don't you?
It is more than likely the splitter/amplifier, cable or connections rather than the TV but to make sure you must move the TV in the other room and try it on the suspect cable before condemning the TV.
Signal problems are usually due to water ingress and this could have happened on just one cable.
Failing that, the TV input could have failed. It is not common but does happen now and then.
Testimonial: "Okay. I will try to explain a little better. I have one tv aerial on the roof of the house and I have one tv in one room and in that room, there is a tv aerial socket that I have plugged the aerial of that tv into. In another room, I have this tv that has a separate aerial socket that I have plugged it into and it is this one that is causing the problem. I tried the tv again and it still would not tune, so I then tried connecting my Human box up again to see if this would tune the channels in and this also came up with the error "antennae has short circuited". What does this mean?"
It sounds like it is definitely not the TV as your Humax indicates a shorted coax. This is possibly where a short strand of outer braid may be loose and making contact with the inner conductor. They are fiddly little things and easy for a loose strand to do this and could be at either end.
It could also still be whatever is splitting your antenna signal which may be at the antenna mast or in your loft.
The easiest would be to remove the faceplate and check the wiring and then follow the cable from the antenna and check wherever it splits.
It is highly unlikely but I have had to help repair instances of vandalism in the past where someone has pushed a needle through the centre of a coax to cause a short. This would only be possible if someone had access to the cable outside the house. Not fallen out with anyone recently have you?
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