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771/771a signal loss

Discussion in 'DIRECTV General Discussion' started by joeduck64, Apr 27, 2011.

  1. joeduck64

    joeduck64 New Member

    Apr 27, 2011
    I have had DirectTV since 2009 and for the first year I had no problems. Within the last 6 months I started getting the 771 and 771a error message occasionally on all TVs at the same time. I have one HD-DVR, one HD and two standard receivers. I checked all connections and it started to work again. That lasted about two days and it happened again. Again I fiddled with the connections all the way to the dish and again it magically started working again. Nothing was loose and I really found nothing. After this happening over and over sometimes fixing itself from morning to night and vise versa, I have figured out the fix although it is a pain thus the reason I am looking for answers. Anytime I lose the sat signal all I have to do is go to my ground block, which was installed inside my house-I thought I read here somewhere that this is not a correct installation. Anyways, I go to my ground block disconnect the satellite feed and the cable to the multi switch, reconnect the sat feed first to the ground block then making sure to get a small blue spark between the ground block and the copper in the cable going to the multi switch, I reconnect that cable and like magic I have signal again for the next day to three weeks or more. My question is why is this? Do I have a bad ground block? I can't believe it is an alignment problem as it is so intermittent and the signal is right back up when I disconnect and reconnect at the ground block. If it is a corroded connection then why does it start working every time I do the disconnect and reconnect at the ground block? Can anyone help? :confused:


  2. NR4P

    NR4P Dad

    Jan 15, 2007
    Sunny Florida
    :welcome_s to dbstalk Joe

    Unfortunately its nearly impossible to make an accurate diagnosis from miles away of what might be the problem without more info.

    But where we usually start is the following.
    On your remote, press and hold INFO.
    You will get a menu screen.
    Go to Sat and Ant.
    Step into that and get us some Sat transponder readings.
    Doesn't matter if its tuner 1 or 2 for now if you use a DVR.

    For each SAt you can get in the menu (99, 101, 110, 119 etc.) give us the SAT readings.

    You don't need to worry about 99s or 103s that end in an "s".
    But we do need all the others including the other 99c and 103c ones.
  3. joeduck64

    joeduck64 New Member

    Apr 27, 2011
    Here are my sataellite readings from my H21-200 HD receiver.

    Satellite transponders (32 total at 101º)
    1-8 92 88 93 0 90 97 89 97
    9-16 87 93 92 0 92 97 92 97
    17-24 89 100 95 0 94 97 95 97
    25-32 89 100 90 91 93 97 92 98

    Satellite transponders (3 total at 110º)
    1-8 NA NA NA NA NA NA NA 88
    9-16 NA 88 NA 89 NA NA NA NA

    Satellite transponders (11 total at 119º)
    17-24 NA NA NA NA NA 84 95 82
    25-32 0 84 86 52 87 0 87

    Satellite transponders (14 total at 99º(c)) [or 99º(a)]
    1-8 86 76 83 73 85 75 83 72
    9-16 84 76 82 72 86 76 NA NA
    [Note, these can be very slow to appear]

    Satellite transponders (16 total at 103º(ca))
    9-16 80 74 81 78 77 74 79 77
    17-24 78 76 82 78 79 77 82 79

    Satellite transponders (14 total at 103º(cb)) [or 103º(b)]
    1-8 86 83 84 81 83 80 84 81
    9-16 83 80 84 82 82 79 NA NA
    17-24 NA NA NA NA NA NA NA NA

    Satellite transponders (9 total at SWM)
    1-8 98 0 98 0 90 91 89 89
    9-16 89 NA NA NA NA NA NA NA

    Thanks for any help.
  4. eraymond2110

    eraymond2110 New Member

    May 3, 2011
    Your signal looks a bit low overall but that doesn't necessarily mean that it is an alignment issue. This problem could be caused by a number of things, LNB, ground block, multi-switch, cable shorting out, etc...

    Oftentimes when equipment is starting to fail, the problems will occur intermittently and will begin to happen more frequently over time.

    Point is that you will definitely need a tech to troubleshoot this problem on-site.

    Good luck


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