Troubleshooting/diagnosis bad tuner in Elite XL4

Discussion in 'TiVo Premiere DVRs' started by SVTarHeel, Jan 23, 2020.

  1. SVTarHeel

    SVTarHeel Member

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    Winston-Sale...
    I got an e-mail from an acquaintance last night. He has an Elite XL4 with Lifetime and has been told it has a bad tuner but doesn't know any more than that. What do I need to know to find out if it's fixable? My only Premiere experience is with the 2-tuner/antenna models...
     
  2. ThAbtO

    ThAbtO TiVoholic by the bay TCF Club

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    If it is a bad tuner, it is not fixable, and must be replaced.
     
  3. SVTarHeel

    SVTarHeel Member

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    Sep 22, 2014
    Winston-Sale...
    Thanks, that was my fear. Is there anything I can do to verify that it is indeed bad? I suspect the stumbling block will be the lack of a cable account/card...
     
  4. JoeKustra

    JoeKustra in the other Alabama TCF Club

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    Simple. Restart the box. When it's done, check all the tuners in Diagnostics. They should be identical since they will all be on the same channel.

    Sorry, no cable card: no channels. Unless he has a clear QAM channel. So run a channel scan. Maybe it will find one. I have two.
     
  5. SVTarHeel

    SVTarHeel Member

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    Sep 22, 2014
    Winston-Sale...
    Thanks, that makes sense. I have since discovered that he also has a Roamio with a bad tuner. With *2* units with a diagnosed bad tuner, what do you think the likelihood is that it would be 1) poor customer support from the cable company (there’s a CableCard hiccup and they default to “Uhh, you have a bad tuner.”), or 2) some kind of power surge or lightning strike fried them both?

    But those are largely guesses from ignorance. I've never used a TiVo with anything besides an antenna.
     
  6. JoeKustra

    JoeKustra in the other Alabama TCF Club

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    If you are using the same cable card in both units I would speculate that the card is bad. I don't know if you can program a card for just three tuners.
     
  7. SVTarHeel

    SVTarHeel Member

    140
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    Sep 22, 2014
    Winston-Sale...
    I don’t know if it’s the same card giving the issue or not. I’m operating blindly since I don’t have access to the units.

    I think, in the end, he‘d like to get rid of both units and move forward. I was operating on the (perhaps erroneous) assumption that a bad tuner was uncommon enough - especially in two units of differing model numbers - that it might be something simple (or nothing at all) and I could get them from him, test and update them, and re-home them to someone who could use them... I hate to see usable tech scrapped.
     
  8. snerd

    snerd Well-Known Member

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    I've experience hiccups that cause the CableCard to have problems with individual streams, which would look like a "bad tuner". Power cycling the hardware fixed the problem.

    If the problem persists when changing to a different CableCard, then it isn't fixable.
     
  9. SVTarHeel

    SVTarHeel Member

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    Sep 22, 2014
    Winston-Sale...
    Thanks for the feedback snerd
     
  10. SVTarHeel

    SVTarHeel Member

    140
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    Sep 22, 2014
    Winston-Sale...
    Updated info: the diagnosis came via a call to TiVo. Apparently, they helped diagnose through the read out system and said it was a tuner issue.

    Any educated guesses as to whether or not they’re likely to live again? I don't have them in my possession to test anything and wouldn’t be able to do much with the Elite since I don’t have cable service. Is a TiVo rep likely to punt with a ‘bad tuner’ diagnosis when flummoxed?
     

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