1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

SWM and 771 error

Discussion in 'DIRECTV HD DVR/Receiver Discussion' started by 909dude, Sep 14, 2008.

  1. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

    42,684
    349
    Dec 9, 2006
    BUT with a SWM system, there are NO BBCs, so while this may have been "your fix", it doesn't apply to a SWM system. :nono:
     
  2. azarby

    azarby Hall Of Fame

    4,126
    15
    Dec 15, 2006
    He may have a bad SWMLINE LNB. Also from our trials, some splitters are problematic.

    Bob
     
  3. OTOWNDAWG

    OTOWNDAWG Cool Member

    12
    0
    Jan 29, 2005
    Well not knowing what a SWM system is really, i was just throwing out what worked for me.
     
  4. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

    42,684
    349
    Dec 9, 2006
    And I know you were trying to help. Now you know that they aren't used with a SWM. :)
     
  5. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

    42,684
    349
    Dec 9, 2006
    "our splitters" weren't always the same as what DirecTV installers use. Also since there is always one tuner working, it starts to look like "something" else [to me].
    Since the PI is on a UPS [of some type] and has all of the channels active, perhaps it has never been reset with all of the receivers [this being the seventh] connected.
     
  6. OTOWNDAWG

    OTOWNDAWG Cool Member

    12
    0
    Jan 29, 2005
    And thank you for pointing that out to me. Can you be so kind in telling me what a SWM system is for future reference. Thank's in advance.
     
  7. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

    42,684
    349
    Dec 9, 2006
    Single Wire Multi-switch.
    Think of it as a "pre tuner" for your receivers. Currently the dish sends 500 MHz of either even or odd transponders [from each SAT] down a cable to each tuner.
    SWM reduces this to "a" transponder for each tuner. It converts these to a "channel" for each tuner. This allows up to eight tuners to share the same cable [single wire] and make the house wiring more compatible with cable TV wiring.
    Since the "pre-tuning" is done in the SWM, there is no need for BBCs.
     
  8. 909dude

    909dude New Member

    9
    0
    Sep 14, 2008

    The power for the SWM brain is plugged into house power and not the Panamax conditioner. I have only had three tuners feeding from the SWM: two to the DVR and one to the non hd receiver that was supplied with the SWM.
     
  9. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

    42,684
    349
    Dec 9, 2006
    So have you tried a reset of the SWM and then your receivers?
     
  10. 909dude

    909dude New Member

    9
    0
    Sep 14, 2008
    Yes I did. I haven't had an episode yet this week. Thanks for your continued help.
     
  11. jdmac29

    jdmac29 Godfather

    401
    0
    Jan 6, 2006
    Skywalker splitters have been used by many and they are not expensive from a1components web site.
     
  12. Alebob911

    Alebob911 Hall Of Fame

    1,622
    6
    Mar 22, 2007
    CERES,CA
    I know during our field trials it was recommended to plug the PI into a surge protector or power conditioner. If you could move it to you panamax, it could help with future issues.

    One other thing, wasn't your setup installed by directv? I ask because if it was they should have used the proper splitters. As VOS pointed out, It seems very strange that you have all of the SWM transponders showing signal with only 3 tuners. Guess you got us all :confused: about it. Glad to hear it working for now.

     
  13. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

    42,684
    349
    Dec 9, 2006
    FYI:
    Today I needed to move my SWMLine and used my H21 to align it. To my surprise, with only one tuner connected, ALL of the SWM channels were "there", with no zeros.
    Later with my system back up and three DVRs & one receiver, the zeros "showed back up".
     
  14. 909dude

    909dude New Member

    9
    0
    Sep 14, 2008
    Thank you for the continued help everyone. The zero "thing" sounds strange. FYI, I found out that I have a 5 feed SWM, if that makes any difference.
     
  15. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

    42,684
    349
    Dec 9, 2006
    That would be the "SWM5", which they no longer offer. The SWM8 has taken over along with the SWMLine dish [which has the SWM8 inside].
    So you should "at most" have only 6 SWM channels on the SAT SWM screen.
     

Share This Page