Seaching for signal on ch481 did my b-band die?

Discussion in 'DIRECTV Installation/MDU Discussion' started by turbovr6, Mar 23, 2008.

  1. turbovr6

    turbovr6 AllStar

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    0
    May 17, 2007
    Hi All,

    I am getting "searching for signal" on some of my channels. 359, 331, 244. Prob. some more. I checked ch.480 and it was good, ch481 is "searching for signal".

    Previous to today everything was working fine for the last 8 months or so. Sounds like my b-band took a dump. Is this common? I know some of them were bad right out of the box, but has it been common for a working one to die?

    Thanks.
     
  2. K4SMX

    K4SMX Hall Of Fame

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    May 19, 2007
    This is not necessarily a BBC problem, but it probably is. It could be something else, though.

    What are your even tp's like on 110 and 119? The signal which controls the evens on 103(c) (CH 481), also controls the evens on 110 and 119. Problems with the evens on all three satellites could be caused by either the receiver or the LNB's internal multi-switch.

    I would check all your connectors for looseness and/or corrosion all the way to the connector at the LNB inside the LNB support arm, if you can get to it. This is the most common cause of system problems, in my experience, followed by mis-alignment and bad BBC's. You don't have an alignment problem, if all you're missing are the 103(c) evens-numbered tp's.

    You can order a new BBC from tech support and you will receive it at no charge by 2 day FedEx. You should have a spare for troubleshooting in any case.

    If your connectors and BBC are good, there is a possibility there's a problem with the multi-switch inside your LNB assembly. This is the least likely cause of your problem, but if you can get to the connection at the LNB, you can certainly hook it back up to one of the other three ports, which is not necessarily conclusive.

    Finally, H20-600's run hotter than any other model DirecTV receiver. There's always the possibility your problem is heat-related. I run laptop coolers upside down on both of my H20-600's after determining that the 771's I was getting on one of them were due to excess heat. It's somewhat unlikely that an overheat problem would effect just your 103(c) evens, but anything is possible.
     
  3. turbovr6

    turbovr6 AllStar

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    May 17, 2007
    sat 100 is showing 3 transponders. 8=89, 10=81, 12=90
    Sat 119 is showing 11 transponders. 22-24=95 25-32=95 or better.

    All connectors from H20 to dish are tight, dish is solid on the mount.
     
  4. thedonn

    thedonn AllStar

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    Jan 10, 2006
    I have the same exact problem. For me it happened over the weekend after months and months of beautiful HD on the new Mpeg 4 stations and years on the older HD.
    I can get all my standard def stations and some of my HD such as HBO but the rest of the new ones are gone.

    For me my sat 103 is all zeros. From another post i saw it could be a b band issue or something else.
    my sat 100
    89 90 91 0 88 96 86 96
    87 93 90 0 91 97 89 98
    87 100 89 0 93 97 91 97
    91 0 91 100 91 97 89 98

    my sat 110
    1-7 n/a 92
    n/a 89 n/a 92 n/a-8
    n/a - 8
    n/a - 8

    my sat 119
    n/a - 8
    n/a - 8
    n/a -5 84 70 80
    86 85 88 84 0 86 80 86

    99
    0 0 0 0 0 0 n/a n/a
    n/a for all the rest

    103(a) and (b)
    0s and n/as for both
     
  5. K4SMX

    K4SMX Hall Of Fame

    3,433
    0
    May 19, 2007
    The next step is easy: call them on the phone and request a replacement BBC.

    BTW, it would be a good idea to actually remove and re-tighten each of those connectors until just snug with a 7/16" wrench, even if they don't appear to be loose, if you didn't do that. Have a look inside them while you've got them temporarily disconnected to make sure everything looks OK. Just because they're tight doesn't mean they're OK inside.
     
  6. K4SMX

    K4SMX Hall Of Fame

    3,433
    0
    May 19, 2007
    Your dish appears to be out of alignment. If you would like to try re-aligning it yourself, please see post #44 here. I recommend to you the DirecTV 2006 video referenced in that post if you're not thoroughly familiar with the how the fine tuning mechanisms work on the 5 LNB dish. Otherwise you'll need to call DirecTV ($80 if you don't have the Protection Plan) or find someone locally.

    It's quite likely that either the wind changed your AZ because the dish has spun on the mast or more likely in this case that your EL has dropped because the mounting bracket has come loose from the wall, roof, etc.

    Also, your 119's are lower than your 101's, indicating that the tilt on your dish could be off. It should be ~114 degrees, so make sure it's in the ball park by reading the scale on the back of the dish. This could also be due to your mast no longer being plumb if the mounting bracket is loose.
     
  7. thedonn

    thedonn AllStar

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    0
    Jan 10, 2006
    Thanks. I thought everything was locked down but when I went back again I saw that I could turn it pretty easy. Everything though was the way it was. I couldnt change the up and down, or the tilt from left to right. But when I twisted a little while monitoring the signals, I cant get anything to come on the 103. I think Im gonna have to pony up 80 bucks.
     
  8. thedonn

    thedonn AllStar

    72
    0
    Jan 10, 2006
    I signed up for that 6 dollar a month service plan and had them come out twice and they finally solved it.

    this was a few weeks ago, just replying now
     
  9. putty469

    putty469 Legend

    136
    0
    Jun 5, 2007
    Would you elaborate on how they solved it so people searching for a similar answer can get it?
     

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