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Wits-end SL3 SWM with HR24 install Lots-o-pics

Discussion in 'DIRECTV Installation/MDU Discussion' started by geneda, Oct 8, 2011.

  1. tritch

    tritch Legend

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    Jan 15, 2008
    Porter, TX
    My PI is also plugged into a power strip without issues, but there a few threads around with people having problems. I was on the phone with my brother for a couple of hours trying to figure out why his switchover to a SWM LNB wouldn't work. His symptoms were similar to the OP's, the DVR would recognize a SWM setup on bootup, but had zero signal. I then remembered reading a Directv SWM training manual about issues regarding plugging the PI into a power strip. It appears in some scenarios that interference from the power source can potentially cause issues with the SWM channel frequencies coming through the PI correctly.

    It may not be his problem at all, but I thought he should give it shot and see......
     
  2. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    I didn't mean to suggest he shouldn't.
     
  3. geneda

    geneda Cool Member

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    Oct 8, 2011
    I thought for sure this would work. i raced home to try it, but nothing.

    So, it changed from multiswitch to swm, but still all zeros. And the swm was not on the list of satellites, i rebooted and now I see swm, but it reports all zero.

    hopes crushed again.... LOL
     
  4. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    "Well", now you know another thing it isn't. :(
     
  5. tritch

    tritch Legend

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    Sorry to hear it didn't work. It could be a bad LNB or PI, I guess you'll find out on Friday when you try the replacements. I suspect VOS is correct and may have something to do with the voltage drop over 100ft run, especially if the coax is not solid copper core. It's likely easier and less costly to try a 28v PI before dropping a SCC coax run.
     
  6. Davenlr

    Davenlr Geek til I die

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    Sep 16, 2006
    Guys, I know what the DirecTv specs call for and all, but I am using a 150' run of RG6 copper coated steel with a barrel connector, and then another 50' of RG6 out to a 10' dish in the back 40, running 13/18V switching, and it works perfectly. I really dont think there is enough power loss to cause a SWMLNB not to function, especially if the regular LNB works fine on the same coax.

    Im betting one of the two components are bad. Friday we should all know.
     
  7. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    "Except" the SWiM draws more current/power than a legacy LNB does.
    There have been times that the 21 volt PI didn't work at a customer's house, a 28 volt did, and the 21 volt worked fine when brought "home" on another system.

    IF the coax is solid copper core, then this isn't the %^&% problem. :lol:
     
  8. geneda

    geneda Cool Member

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    Oct 8, 2011
    so, what does the swm setting on the signal strength screen test? what do you make of it not being there, but finding the swm on the setup screen?

    i eventually got it to show up, but it reported all zeros
     
  9. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    Something is "fishy in Denmark".
    If the receiver shows it's connected to the SWiM, then the SWM screen show show up "and" you should see more than zeros [always], as the first number is for the guide data channel, and the following only show a zero for the other tuners on the same SWiM.
    "For example" I have seven tuners so when I use a single tuner [receiver] to check, I have six zeros for the three DVRs.
     
  10. Davenlr

    Davenlr Geek til I die

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    You did take the splitter back out of the loop right?
     
  11. geneda

    geneda Cool Member

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    Oct 8, 2011
    Right, splitter has been removed... Man, I hope it's not the receiver.

    I have been told that the new LNB and PI are waiting for me at home. I HOPE this works.
     
  12. geneda

    geneda Cool Member

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    Oct 8, 2011
    i got a brand new PI and a brand new SWM LNB. i replaced the PI first, same results. i unplugged everything, went up on the roof, replaced the LNB. i put the cables into the PI and then plugged in the PI, then plugged in the receiver.

    i honestly wasn't expecting it to work, BUT, it WORKS!!!!!!!!!!


    i am very happy. thank you all for helping out! i got TV to watch!
     
  13. Davenlr

    Davenlr Geek til I die

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    Fantastic!
     

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