1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.
  2. Welcome to the new DBSTalk community platform. We have recently migrated to a community platform called Xenfono and hope you will find this change to your liking. There are some differences, but for the most part, if you just post and read, that will all be the same. If you have questions, please post them in the Forum Support area. Thanks!

AU9, SWM, Lost Even TP's

Discussion in 'DIRECTV Installation/MDU Discussion' started by Sixto, Nov 19, 2008.

  1. Sixto

    Sixto DIRECTV A-Team

    12,224
    94
    Nov 18, 2005
    Well, I can use some help from the installation experts.

    Today, all receivers in the house lost every even transponder on 101° and 99°. 103°, 110°, and 119° are fine.

    It took me a few hours to figure out what was wrong, but now need to figure out what to do next.

    The AU9 dish is connected to two (2) SWM-8's thru 1-side power pass splitter's.

    At first I thought the problem was within the house, but everything I tried failed. I eventually shut off every receiver and both SWM's but nothing solved the problem.

    Then I decided to go into the attic and disconnect both SWM's from the AU9 Dish and hook up one receiver directly to the Dish.

    Well, to my surprise, one of the connections to one of the 2-way splitters was all burned out. Totally fried.

    There are four cables from the Dish to the four splitters. It's right at the point where one of those four cables connected to one of the splitters that was all burned out.

    What the heck would cause that?

    I then cut back about 6-inches to replace the connector and the 2-way splitter, but it appears that the entire cable from the attic to outside on the roof may by fried.

    And I myself can't get to the roof.

    I'm expecting that I need to get an installer here but what do you guys think happened?

    Any way to move wires around to get back 101° and maybe move the problem to another sat?

    All feedback appreciated!
     
  2. Mertzen

    Mertzen Hall Of Fame

    3,682
    0
    Dec 8, 2006
    Any pics? Most likely a short or water penetration.
     
  3. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

    42,654
    338
    Dec 9, 2006
    Any rain?
    Sounds like "that" cable had a short [causing excessive current draw]
    Which tps did you lose? 13 volt = odds. 18 volt = evens.
    You could swap with the "tone" pair and move the problem over to 103/119/110, which might only affect your loss of "part" of 103, as 119/110 you may not need [as much].
     
  4. BattleZone

    BattleZone Hall Of Fame

    8,969
    1
    Nov 13, 2007
    Definitely a short. The most common cause is one "hair" of the shield braid being lose in the connector, either causing a hard short or arcing. The second most common cause is a kink or crush of the cable, which causes the center conductor to break through the dielectric and touch the shield. Third is a cut/tear/abrasion of the cable jacket that allows moisture entry.

    You definitely need to replace the entire cable run. Most likely the dielectric is melted over much of the cable's length.
     
  5. Sixto

    Sixto DIRECTV A-Team

    12,224
    94
    Nov 18, 2005
    Thanks VOS. Appreciate the help.

    101°, every even TP is 0.
    110°, all odd/even fine.
    119°, all odd/even fine.
    99°(s), even even TP is 0.
    99°(c), every even TP is 0.
    103(s), all even/odd fine.
    103(c), all odd/even fine
     
  6. Sixto

    Sixto DIRECTV A-Team

    12,224
    94
    Nov 18, 2005
    Yep, when I cut back the cable 6 inches, the center was slightly black coated, and the quad shield braiding was very brittle.
     
  7. Sixto

    Sixto DIRECTV A-Team

    12,224
    94
    Nov 18, 2005
    BTW, 99° 16/20(even) is where my HD locals are. Using NY DNS 390's (from 103°) in the meantime but series links are all messed up. And guide is messed up with missing 101° TP's°.
     
  8. Sixto

    Sixto DIRECTV A-Team

    12,224
    94
    Nov 18, 2005
    Also, I moved the bad connection from SWM port #1 (18v) to SWM port #2 (13v) earlier and the problem did not move.
     
  9. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

    42,654
    338
    Dec 9, 2006
    [back to the SWM and] swap the 13 volt tone to the 18 volt [no tone], do quck check of what you're now missing and maybe then move the 13 volt tone over to the 18 volt tone.
    You will be "missing something", but which "something" can be "adjusted" :lol:
     
  10. houskamp

    houskamp New Member

    8,636
    3
    Sep 14, 2006
    I would suspect something more along the lines of a lightning strike to dammage the cable that bad...
     
  11. RobertE

    RobertE DIRECTV A-Team

    8,024
    0
    Jun 9, 2006
    Water is getting in the line somewhere.
     
  12. Sixto

    Sixto DIRECTV A-Team

    12,224
    94
    Nov 18, 2005
    did some swapping ... now all zero ... gotta play some more ...
     
  13. Sixto

    Sixto DIRECTV A-Team

    12,224
    94
    Nov 18, 2005
    did have a very bad storm and wind last night.
     
  14. Sixto

    Sixto DIRECTV A-Team

    12,224
    94
    Nov 18, 2005
    Ok. I did the swapping and to my surprise now every transponder has signal.

    Think I'm just lucky for now and the cable still needs to be replaced but re-booting a few receivers now to check this out.
     
  15. Sixto

    Sixto DIRECTV A-Team

    12,224
    94
    Nov 18, 2005
    Robert, right at the connection to the splitter in the attic, the connection was all burned out, totally fried. At first I couldn't get the connector off because it was tight. I got the other 3 off easily. When I finally got it disconnected, the stem of the coax was glued into the splitter and the splitter input was all black. The inside of the connector was also all black with no coax sticking out (because it was still in the splitter).

    When I cut back a few inches, the coax was solid but had a blackish coating on it. And the quad shield braiding was corroded looking and brittle.

    I must admit that I've replaced almost every coax connector in the house with PPC EX6XL compression connectors, but the 4 lines from the dish have 10-year old connecters that were crimped with a pliers.
     
  16. RobertE

    RobertE DIRECTV A-Team

    8,024
    0
    Jun 9, 2006
    Ugh. I'd look into replacing those lines.

    It doesn't necessarily have to be a bad connector outside. Could just be a small crack in the outer jacket letting the water in. The water will flow down the jacket to the first break, like a connector. There it will make contact with center conductor causing the short.
     
  17. Sixto

    Sixto DIRECTV A-Team

    12,224
    94
    Nov 18, 2005
    Thanks.

    Going to replace all 4 lines pronto.

    All is working for now.

    Thanks everyone for the help.
     
  18. Sixto

    Sixto DIRECTV A-Team

    12,224
    94
    Nov 18, 2005
    Robert, by the fact that I eventually got it working tonight by putting a new connector on the line and replacing the splitter, would you assume that the outside connection is ok?

    All is still working tonight.

    It's just weird that when I first replaced the connector and splitter, it did not work.

    It wasn't until VOS recommended moving the cables around that it began working so I'm guessing that the cable is now flakey and needs to be replaced asap, but at least the whole house is back up and running.
     
  19. eakes

    eakes Godfather

    350
    1
    Sep 21, 2007
    From your description, the damage seen is caused by long exposure to moisture. Eventually the center conductor of the cable where it contacts the splitter would totally disappear. The fact that the coax appears stiff and moving it around helped restore service indicates water damage to the cable. The only possible fix is to replace the cable, obviously, the other three cables should also be replaced at the same time since they may also be damaged but at a different point on the deterioration curve. The cable should be replaced all the way to the antenna.
     
  20. hdtvfan0001

    hdtvfan0001 DIRECTV A-Team

    32,456
    258
    Jul 28, 2004
    Sixto:

    The good news is that it appears your SWM and other devices are not damaged or faulty.

    This clearly looks like a coax line/connector issue. I'm assuming your stuff is all properly grounded.

    Whether moisture came into play...not sure.

    What I do know is that even if small things are amuck (like the middle copper prong on a coax connector is too long or too short a fraction)...a spark can happen, causing some of the same symptoms you described.

    The fact that the problem went away when you re-ran new lines and/or a connector end seems to reinforce it may have just been a bad end someplace (or two places).
     

Share This Page