Screen flashing on and off

Discussion in 'Apple TV and Home Theater' started by Johnelf, Jan 31, 2019.

  1. Johnelf macrumors newbie

    Joined:
    Oct 7, 2018
    Location:
    Surrey Uk
    #1
    Hi
    My ATV4 was all fine until today.
    The screen is flashing between full Norman screen and a dark screen. The white light stays on constant.
    It changes about every 5 seconds. I have not changed anything. I have also unplugged everything several times, but this has not resolved the issue
    John
     
  2. Audit13 macrumors 68040

    Audit13

    Joined:
    Apr 19, 2017
    Location:
    Toronto, Ontario, Canada
    #2
    This happens when you plug the ATV directly to the display?

    Tried different HDMI cables?
     
  3. Johnelf thread starter macrumors newbie

    Joined:
    Oct 7, 2018
    Location:
    Surrey Uk
    #3
    Using same HDMI cable as always from RS. Not tried directly yet, it is via the sound bar as it’s always been. I have rebooted everything
     
  4. Audit13 macrumors 68040

    Audit13

    Joined:
    Apr 19, 2017
    Location:
    Toronto, Ontario, Canada
    #4
    I would try the direct connection method first.

    I have seen this happen with defective cables.
     
  5. Johnelf thread starter macrumors newbie

    Joined:
    Oct 7, 2018
    Location:
    Surrey Uk
    #5
    I will give both a go and report back
    Really weird though
     
  6. Johnelf thread starter macrumors newbie

    Joined:
    Oct 7, 2018
    Location:
    Surrey Uk
    #6
    Well it appears it was a cable failure.
    Swapped over able and all good. Swapped it back and back came the problem. So that’s gone in the bin. In all the years never known a cable to suddenly go and not a cheap one at that I recall.
    Thanks for all the help anyway.
    John
     

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