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Thread: DMX741U

  1. #1
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    DMX741U

    Hope someone can help with DMX741 problem not new to satellite tv first setup mid 1980's new to this lnb. I have a 10' unamesh 920 4DTV CorotorII Plus second fta receiver Captain 8000Hd. Setup on 97w Pastor Scott, wanted to retire 920 bought Dmx741 and Vbox X. Problem installed 741 in corotor scaler ring signal and quality 80-65 in setup menu same as corotor, exit menu to channel no signal. tried tweaking still no signal out of seup menu. Just received replacement 741 got U this time. Setup nothing with jumper cable connected connected just to ku,signal in setup menu nothing when I go to channel. Help please! also put corotor back on both times and it works as well as it did before.


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  3. #2
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    Do you have the 22kHz turned on?

  4. #3
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    Yes I have had it both on and off no difference, also did a blind scan with the 741 installed it picked up both H&V transponders. Still the same exit out of the setup menu no signal. Its like it turns off the voltage to the lnb. I metered the voltage at the dish 13v&18v.

  5. #4
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    I don't believe that the 920 can work with an universal type LNBF. Remove the 4DTV receiver and connect directly from the 8000HD to the KU section of the LNBF. Set the LNB type to standard / LO frequency 10600 with the 22KHz ON.
    Last edited by SatelliteAV; 08-23-2011 at 08:56 AM.

  6. #5
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    I am not using the 920 am using the Captain 8000hd it has universal setting. when I removed the 920 and reinstalled the corotor it was on veritcal so I can watch any v channel on 97w. Just can't get the 741 to hold signal out of the setup menu.

  7. #6
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    Connect the LNBF KU output directly to the 8000HD. Delete all channels. Set the LNB type to standard / LO 10750, 22KHz ON. Perform a Power Scan.

    Do all H/V channels scan in? Are they on correct frequencies and polarities?

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