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Problems with 2 WB68 Multiswitch Installation (Installed by D*)

Discussion in 'DIRECTV Installation/MDU Discussion' started by stflush, Dec 21, 2009.

  1. stflush

    stflush Cool Member

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    Nov 19, 2007
    I currently have a need for 9 lines (no SWM).

    3 HR20s
    1 H20
    1 DirecTv Tivo DSR6000

    D* installed two Zinwell WB68 multiswitches by splitting the 4 dish lines at the multiswitches. I get searching for satelite errors on almost every receiver with this setup (basically it doesn't work). It was such a struggle with D* just to get things to this point that I haven't bothered them yet with troubleshooting.

    I still have the 4 dish lines split but am only using 8 outputs out of one multiswitch (no receivers connected to the second multiswitch) and have no problems with signals on any receiver. But as soon as I install a line to the second multiswitch I get the signal problems.

    Should this setup even work? Any suggestions on what I should do? Thanks for the help.

    Matt
     
  2. texasbrit

    texasbrit Well-Known Member

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    You probably have the lines from the splitters incorrectly connected to the WB68s. The two lines from each splitter have to be connected to the same inputs on each multiswitch; e.g the two lines from splitter 1 connected to the 99/101 13v connector on each multiswitch and so on. It does not matter in which order you connect them as long as they are "paired" correctly, and are connected to the first four ports of each multiswitch (not the flexports). Also the splitters MUST pass power on both ports, not just one.
     
  3. CJTE

    CJTE Hall Of Fame

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    texasbrit is right on the money.
    I have that setup in 2 locations. An AU9 (Slimline), and an 18x20 3LNB with 4 power passing splitters to 2 WB68's.
    As stated, the most important part is making sure that each split line is connected to the same place on both WB68's.

    I did manage to cook one of the WB68's due to a bad splitter (which became deformed and broke open the welds), but stuff happens. This setup definitely can work if done correctly.
     
  4. BattleZone

    BattleZone Hall Of Fame

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    Nov 13, 2007
    [​IMG]

    It is critical that any line that is split between the dish and the switches has the split line going into the same port on all switches, as this diagram shows.

    It may also be helpful to "load-balance" the two switches, so that you have 5 lines on one and 4 on the other.
     
  5. carl6

    carl6 Moderator Staff Member DBSTalk Club

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    Seattle, WA
    Your symptoms suggest incorrect connection and the above information should help you resolve that. But, if everything is connected correctly, and the splitters are dual port power passing (pass power on both ports), and it is still not working correctly then you need to look into more complex trouble shooting or installation options.

    If your coax runs are long, adding a Sonora power inserter/phase locker between the dish and the splitters might help. Make sure none of your coax lines are bad (shorted connections, etc.).
     
  6. stflush

    stflush Cool Member

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    Nov 19, 2007
    Thanks for the feedback everyone. I'll check it out tonight and see what I have for the splitter setup, and go from there. Let you know what I find.
     
  7. stflush

    stflush Cool Member

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    Nov 19, 2007
    Looks like you guys nailed it. The split lines are not going into the same input on the two multiswitches. The D* tech was on the phone with someone talking about the install, so now it's quite obvious he didn't know what he was doing. :) Thanks again for all the feedback.

    Matt
     
  8. BattleZone

    BattleZone Hall Of Fame

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    The tech had probably never seen a wiring chart like the one I posted, and if was his first time trying to use splitters like that, it would be difficult to communicate over the phone exactly what needed to be done.

    While doing this is becoming a little more common, it's still fairly rare and somewhat "advanced".
     
  9. 1948GG

    1948GG Icon

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    Aug 4, 2007
    The schema that 'Battlezone' drew above is 'correct', in that it 'should' work.

    BUT, several years ago DirecTV in my parts got into big trouble, lots of customers with that setup of 'splitting' the dish outputs to dual WB68's were having tons of 'searching for satellite' probs (generally intermittent) and the 'techs' weren't able to figure it out.

    So, MDU companies eventually tracked down by the customers (including me). We replaced all (repeat: ALL) those setups with the WB616 16 port powered switch, and elminated all the problems. Again, ALL.

    The price tag was a bit high (the WB616's were >$250 or so), then the price went down, now it's back up high again, with Zinwell apparently stopping production of the item. Supposedly, although I haven't checked it out, a 'newer' version of the WB68 came out when the E2-Expander module was released for use with the SWM8 (it being the third version replacing the E0 and E1 'splitters'), and the need for the WB616 was deemed to be extinct.

    But, there are still quite a few around, and I haven't been able to completely verify from Zinwell if the WB616 is 'out of production'. There are still quite a few available from eBay, at the 'original' high price. But they do work, and I haven't had any fail (we put in close to 100+ of them 'in the day').

    Again, I haven't put one of the 'new' WB68's (version 'X'?) on the bench. Virtually (how about 'all'?) everyone these days is going with the SWM8, and if they need >8 ports, going with the E2-Expander/Splitter. After all, if you have older equipment, the SWM8's have 2 ports each to do those as well.
     
  10. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    ^ wonder how many of those splitters were single leg power passing?
    The WB616 is dead.
    SWiM is the wave of the future.
    The WB616 will be replaced with the SWiM-16.
    BTW: the SWM8 has 3 legacy ports and the up coming SWiM 16 will have 4, thou it's hard to call them legacy, since they are "full band" and you can in fact run a second SWiM 16 off them [no more splitters].
     
  11. stflush

    stflush Cool Member

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    Nov 19, 2007
    Well, I'm back to the same problem as before. Changed the inputs as per the diagram above, and it worked fine for a few days, but I woke up this morning to the dreaded 771 searching for signal on my main receiver. The dish is clear (no snow), and if I change the channel and then return back to the channel that was getting the 771 the picture comes back, but only for a short period of time, then the 771 message is back. I also split up the outputs between the multiswitches as suggested.

    Anything else I can do, or is this setup just not going to work for me? Thanks again.
     
  12. carl6

    carl6 Moderator Staff Member DBSTalk Club

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    There appears to be a problem with the 119 satellite this morning. You might not have a problem in your installation.
     
  13. stflush

    stflush Cool Member

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    Nov 19, 2007
    Ok thanks. Everything appears to be back to normal.
     
  14. joe diamond

    joe diamond Hall Of Fame

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    Having read all of the above...and copied the diagram into my truck notes......the untested component is still the second WB 6x8. It could be ok but switching it line for line now that it is wired correctly might be the next step if a problem returns, as a test.

    Also know that the outputs on those switches are independent and interchangable (except for the ones used in the "cascade"...if you find a bad port another unused one should work.....mark any defective ports.

    Joe
     
  15. bobby5220

    bobby5220 New Member

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    Mar 23, 2013
    Will the Battlezone Schema work with (2) WB616 multi switches and not (2) WB68 switches
     
  16. HoTat2

    HoTat2 Hall Of Fame

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    Los...
    Sure if you already have two of them as they (the WB616s) are no longer in production.

    And remember they will both require external power from A/C adapters of course.
     

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