The fact that you get no image is strange. Sometimes the handshake between HDMI and DVI doesn’t work but you will get an error message on the screen of the TV. Not sure if you have an option but the other thing to try, to eliminate the TV as the problem is to connect another HDMI STB (perhaps you’re Xbox using the DVI cable to see if it works). I am pretty sure HDMI to component won’t work with any STB these days.

Thanks for your response. After abit more messing around it seems as the dvi socket may be the problem. Moving the cable in the socket changes the picture however only for a second. It comes and goes instantly like it would if the resolution wasn't right. Maybe the socket is loose onthe board? Anyone ever opened the tv to get to the mainboard?

Another point is I would simply use a HDMI to rca (using the sockets in the trap door on the right side of the tv) but that doesn't seem to work either? I seem so stuck 

Have you tried resetting the video resolution on the Apple TV?  It may have been inadvertently changed, or perhaps linked to a software update.

On Apple TV 4K or Apple TV (4th generation), hold Menu and Volume Down for 5 seconds, then release. Your Apple TV will switch to a new resolution every 20 seconds. Select OK to choose a resolution or Cancel to quit.

Also you don't mention how you are extracting the audio from the ATV's hdmi - are you using some sort of audio extractor?  Is the audio still working?

A simple hdmi to rca lead will not work.  The ATV's hdmi output is digital only, whereas component (and the composite 'trap door' sockets) are analogue.  You would need some sort of converter device to use the TV's component or composite inputs.

Hi guy and thanks for responding. I have tried to reset the video resolution to no avail.. It shows up with lines across the image and instantly disappears.. This previously used to work which is weird.

The audio was not the issue as I airplay to a sound system.

I'm just so confused as it was working one day and completely stopped.

I have attached the ATV to a 4k tv and it works fine but doesn't seem to work on the b and o. Odd thing is.. If it was the tv I imagine no image would come up at all. The fact the image comes on then disappears is extremely odd.. And the fact that when I move the socket it shows up and disappears is doubly weird. Complete lost?

Yes it's a bit strange.

As Jaffrey said the best thing you could try is to connect another STB by hdmi and see if that gives a picture.  In my 12+ years on the forum, I have never heard of DVI socket connection problems, so I would leave opening up the set to the very last resort!

If you did want to revert to the component sockets, you could always try something like this: 

Thanks again for your reply. I have a HDMI to component but that doesn't seem to bring any picture at all however when I tried that with my Xbox 360 it worked instantly. What would be different about this piece of kit?

In regards to dvi socket not being the problem what would cause it to display a picture (only for a second) when the socket is moved?

Thanks for all your help

Stevenlowry wrote:

Thanks again for your reply. I have a HDMI to component but that doesn't seem to bring any picture at all however when I tried that with my Xbox 360 it worked instantly. What would be different about this piece of kit?

I suspect that the XBox has the ability to send the required analogue component signals via the hdmi socket when this output is selected in its menu.  The Apple TV can't do this.  The box I linked to actually takes the digital hdmi signal and extracts analogue video (component) and audio.  It's active, hence requires power.

Stevenlowry wrote:

In regards to dvi socket not being the problem what would cause it to display a picture (only for a second) when the socket is moved?

Not sure.  There could be some sort of handshake error when connecting - maybe also something to do with hdcp?  Again, I would try a different STB via hdmi to DVI as your next investigation.

If I use the box you suggested what is the likely hood I would get the signal using the component connection? I'm just at my wits end.. An have already spent nearly 40 on cables..

With the box would I also need component to component?

Stevenlowry wrote:

If I use the box you suggested what is the likely hood I would get the signal using the component connection? I'm just at my wits end.. An have already spent nearly 40 on cables..

I can't see any reason why it wouldn't work, especially as you have proved that your Apple TV's hdmi output is working fine with another TV.  You may have to play around with the Apple TV's video output resolutions using the (menu/volume) method that I mentioned above.

Stevenlowry wrote:

With the box would I also need component to component?

Yes but these are very reasonable: