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Help please - Tuner gone bad on a series 2

Discussion in 'DirecTV TiVo Powered PVRs & Receivers' started by mikeandnikki, Dec 28, 2006.

  1. Feb 21, 2007 #21 of 190
    spudly

    spudly Isles&Fin Fan

    60
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    Sep 19, 2001
    Pittsburgh ,PA
    I am having a really odd problem that I can't figure out that is relative to this discussion.

    I had a DSR6000 in my living room for 5 years and an it's twin Hughes model in my bedroom for 5 years. Anyway I had a hard drive problem with the Hughes and retired it as got a warranty replacement R10. But I moved the DSR6000 into the bedroom were the Hughes was and put the newer R10 in the living room. For the first few weeks everything was fine.

    Now here is my problem: The DSR6000 (which had worked fine for 5 years) which is now in the identicle location as the Hughes (also worked fine for 5 years) is having problem. After a few miniutes of watching it looses the signal from one of the tuners and I get the annoying message. I go to the satellite setup an my even transponders have zero signal. I an change to an odd transponder and get the high signal. But even after I "save" this signal it reverts back to an even one and I get back to the same loop. Why does it like the even ones so much? :eek:
    If I change the cables in the back the satellite it looses changes, so I don't think it is the tuner themselves. Any ideas? Any reason why it can't keep a 'good' transponder?

    Thanks!
    Glenn
     
  2. Feb 22, 2007 #22 of 190
    JimSpence

    JimSpence Just hangin'

    30,681
    1
    Sep 19, 2001
    Binghamton, NY
    You can't change the TP that is used as all of them are used. Each channel is assigned to a TP and the receiver tunes the appropriate one for the channel selected. In your case it's an even TP that is needed. Since you are losing all even TPs this means that the 18v switching signal to the LNBs is getting reduced. You have a cabling or connection problem.
     
  3. Feb 22, 2007 #23 of 190
    quoc

    quoc New Member

    21
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    Jun 25, 2003
    Sunnyvale,...
    My friend gave up then gave me his HDVR2 because of this exact problem. Found this thread when I was looking into the problem.

    The problem with this unit is if any 2 (out of the 3) outputs are being used. Any combination of the 1 S-video and 2 composite would cause tuner #2 to go out. Yes, even when using both composite outputs! So my money is on a power supply problem.
     
  4. Feb 27, 2007 #24 of 190
    manolodf

    manolodf New Member

    2
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    Feb 27, 2007
    I have the HR10-250 unit and I have tuner 2 problems. Its hooked up via the HDMI to the TV and it happens in waves, it used to do it in the past, then it has gotten alot worse recently. In the past a simple reset would have it be fine for months, now it wont go away. If you are watching tuner 1 you see constant appearance of No signal on turner 2 warning error. If you are watching or see a recording form tuner 2 you just get choppy programming.
     
  5. Feb 27, 2007 #25 of 190
    John T Smith

    John T Smith New Member

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    Jun 17, 2004
    Vancouver WA
  6. Apr 14, 2007 #26 of 190
    roamerr

    roamerr New Member

    44
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    Feb 11, 2003
    NC
    Svideo cable removal just worked for me. I have 3 HDVR2's but one of them started pixelizing bad on some channels. I tried the lines to the tivo but the lines were fine. Removed the svideo cable and replaced it with a composite and its back to perfect.

    Odd fix but it worked!!
     
  7. Apr 14, 2007 #27 of 190
    wolflord11

    wolflord11 Lord of Darkness

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    Jan 16, 2007
    Madisonville...
    There are some who beleive the S Video problem is a design flaw. It seems to be that using the S Video can cause some problems with Tuner 2.
     
  8. Apr 26, 2007 #28 of 190
    dmcsween

    dmcsween New Member

    5
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    Oct 20, 2004
    Silicon Valley
    I'm reading with great interest the thread about the S video cable causing problems. Sadly, the switch to component did not solve mine. I have the same symptoms, certain channels pixelate in sporadic waves. 501, for example, is pretty much unwatchable. I'm thinking bad tuner, and am looking for a philips DSR7000 logic board. Meanwhile, I have a second directivo box, a hughes, which functions normally.

    So then, to the point, will any of you please describe a procedure using my two satellite feeds, and my two directivo units (one good, one sketchy) that will diagnose this as a line/connector/dish problem or bad tuner, oscillation overthruster intersteller overdrive insert-name-of-electronic-component-I-don't understand here problem. Transponder polarity? Tuner one, tuner two. Even channels, odd chanels? Help me Mr. Wizard.

    Remind me again who it was that I snowed to give me a job in IT?

    yr hmbl svt

    Dan
     
  9. Apr 26, 2007 #29 of 190
    JimSpence

    JimSpence Just hangin'

    30,681
    1
    Sep 19, 2001
    Binghamton, NY
    From your description, you have a dual output round dish with an external 2x4 multiswitch in order to provide four outputs to two DVRs. Also, you changed from s-video to "composite" connections, not "component".

    Troubleshooting tips.
    1) swap inputs on back of problem unit to see what happens.
    2) bypass multiswitch and connect the unit directly to the dish.
    3) use various combination of outputs from multiswitch.
    4) try the RF output to the TV.

    For info on how this stuff works, check this thread.
    http://www.tivocommunity.com/tivo-vb/showthread.php?t=55509
     
  10. Jun 11, 2007 #30 of 190
    Beer Geek

    Beer Geek New Member

    22
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    Mar 14, 2007
    I've been reading this forum for years, but this is my first post, FWIW.

    I have a HDVR2 that started pixellating on Tuner 2 almost a year ago. Dropping the S-video only worked until late last year. The problem resurfaced, and I've just been living with it.

    Was wondering if anyone had come up with more on the problem. My plan is to get an Ebay'd HDVR2 up and running (maybe hacked, if I can figure that out) and ditch the other unit.
     
  11. Jun 11, 2007 #31 of 190
    John T Smith

    John T Smith New Member

    1,446
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    Jun 17, 2004
    Vancouver WA
    I've read lots of speculation about the root cause... but don't remember ever reading that anyone had a real answer

    One of my units decided a few months ago to stop sending a video signal out the coax port to the Tv... which I fixed by using the 3-wire RCA connector and changing the input location on the Tv

    Sometimes, electronic components just stop working
     
  12. Jun 11, 2007 #32 of 190
    wolflord11

    wolflord11 Lord of Darkness

    1,554
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    Jan 16, 2007
    Madisonville...
    I still believe the S Video Problem is a design flaw in the Dual Tuner.
     
  13. Jun 12, 2007 #33 of 190
    Beer Geek

    Beer Geek New Member

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    Mar 14, 2007
    Yeah, I just remember someone was going to check voltages at various places on the board and see if he could tell what was failing.

    Thanks for the update!
     
  14. Jun 22, 2007 #34 of 190
    DevilDogs

    DevilDogs Steeler Fan

    59
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    Dec 29, 2002
    Des Moines,...
  15. Jun 29, 2007 #35 of 190
    cr33p

    cr33p New Member

    644
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    Jan 2, 2005
    Ann Arbor MI
    Hello everyone, I wanted to see if someone could shed some light on a problem I am experiencing, I have an HR10-250 with HD access, sometimes when I am watching an HD channel on tuner 1 my machine will tell me searching for signal on tuner 2, I tried swapping the lines on the rear of the box and it exhibits the same problem on now it says searching for signal on sat 1, this should confirm that it isnt the box right? This must be a wiring or sat problem correct? The weird thing is that it only happens when I am watching an HD channel, not on the SD channels
     
  16. Jul 4, 2007 #36 of 190
    jangelj

    jangelj New Member

    54
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    Oct 23, 2002
    My HDVR2 is still exhibiting the same problem. Pixellation on tuner 2 when s-video plugged in. Has anyone tried simply swapping out the power supply to see if that may be the problem?
    John
     
  17. Jul 4, 2007 #37 of 190
    txhawkeye

    txhawkeye New Member

    2
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    Dec 31, 2006
    Here is another data point in problems experienced with tuner 2:

    I, too, have been having picture breakup problems that I isolated to tuner 2, but I do not use s-video. However, I do use both composite video outputs. I found that my problems went away when I disconnected the cables from one of the outputs. So in my case, the problems have to do with driving both composite outputs.

    My DirecTivo is an older Samsung unit. I had been using both video outputs for a long time before the problems began. Not sure why the problems began - power supply weakening over time? other?

    I'm just thankful I found a way to get around the problems.
     
  18. Jul 6, 2007 #38 of 190
    bparks

    bparks New Member

    7
    0
    Mar 13, 2004
    Rochester, NY
    I'll add a data point too. We have three old DTivos that have been working well for years. The Hughes GXCEBOTD and DirecTV DVR R10 are behaving well, but the RCA DVR40 has been experiencing the Sat 2 input problem for several months. It had become increasingly annoying so today, after finding the posts on manipulating output cables, I did a little troubleshooting.

    Both composite video outputs are connected. S-video is not being used. When either one of the composite video outputs is disconnected, the Sat 2 problem goes away. So, I will use only one output for now. If a fix turns up later in this forum, maybe I can restore full functionality.

    This forum is awesome. It's helped me a number of times in the past. Thanks.
     
  19. Jul 6, 2007 #39 of 190
    txhawkeye

    txhawkeye New Member

    2
    0
    Dec 31, 2006
    I've learned a little more about my tuner 2 problem. I still have problems even with only 1 composite video connection, depending on the transponder tuner 2 is receiving from. I'm still checking, but so far I've found I get pretty significant problems for channels on transponders 8, 9, 16, 17, 24, 25, and 27. Channels on other transponders seem have little, if any, problems.

    I should also point out that the problems become much worse on all transponders when I use the second composite video connection. When I use a single composite video connection, it does not matter which one I use - problems occur with the transponders in the above list.

    Tuner 1 is clean as a whistle with either 1 or 2 composite video connections on all transponders.

    So, all is not perfectly well with tuner 2 in my case - even when using a single composite video connection...

    I'm curious whether any of you who've had problems with multiple video connections (s-video + composite video or 2 composite video) and corrected it by using only a single video connection still have problems when recieving from certain transponders?
     
  20. Jul 8, 2007 #40 of 190
    bparks

    bparks New Member

    7
    0
    Mar 13, 2004
    Rochester, NY
    Changing from two composite video outputs to one made a big difference for me. However, I found I still had some digital garble on some channels. The problems are with transponders 15, 23, 25, 27, and 32 (there may be more but I stopped checking after awhile). The signal strength on each looks fine. I found I could clean up the channel by switching to the other tuner, though I tried this in only a few cases so I don't know if this will always work.

    Transponders 8, 9, and 24 seemed to look clean on the channels I checked.
     

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