IR to IR w/ Comcast's Digital Transport Adapter (DTA)

Discussion in 'TiVo Help Center' started by blobly, Aug 5, 2009.

  1. May 13, 2010 #61 of 122
    kal

    kal New Member

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    Dec 27, 2007

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    Netringer: I think I get it now. You split the coax: one split to the DTA, one split to the Tivo RF input. The DTA then goes to the VCR and then the VCR goes to the Tivo via the red/yellow wires (i.e. we're just using the VCR to "convert" the DTA to a red/yellow wire output). So now you have a dual tuner on the coax input (but with limited channels) and a single tuner on the DTA red/yellow input (but with all channels).

    What I'm now unclear about is: How does the Tivo now know to use the DTA input as the default for all primary recordings? And what if I schedule two recordings at the same time for two "higher up" DTA-only channels? I assume Tivo will record one of them using the DTA input and the other using one of the RF inputs (but, of course, there will be nothing to record on the RF input one because there will be no signal). Or is there some way to define this hierarchy in the Tivo setup?
     
  2. May 13, 2010 #62 of 122
    akc

    akc New Member

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    Mar 13, 2003
    I am nearly losing my mind here and am hoping that maybe your advice and some of these cables(?) might help me. We have 3, yes 3, Tivos. Two are Series 2 Dual Tuners, one is a Series 2 single tuner. We live in Baltimore City, MD, which just made the change to digital about a month ago (Xfinity, Fancast, etc.) Comcast tells us that they will be rolling out more channels to digital over next year, 10 to 20 at a time.

    Our life, since the change, has been a nightmare. I painstakingly did the installations - we have one Motorola Digital Box to a Tivo Series 2 DT, one DTA (unbranded, so Motorola?) to the other Tivo Series 2 DT, and one DTA to the Series 2 ST.

    I'm getting the new digital channels now but the Dual Tuning is a nightmare. Not able to use it on the second dual tuner - need to get a set top box. Not willing to so that until we resolve our BIG problem:

    The channels aren't changing correctly! Literally, have a mind of their own and I've gone through the advanced set up and spent hours on phone with Comcast and Tivo, tech came out for Comcast. We have IR cords set up for all three - but consistently seeing the following nightmarish frustrations:
    - it will not only change to wrong channel (not related so supposed to go to 43 and goes to 2 - so it's not a fxn of getting only one digit)
    - it will change the channel in the middle of a program for no reason (often, exactly a half hour into an hour long program)
    - it will most often change to the OnDemand menu for the box or Channel 2 (durn Golf Channel!)

    Can you help me? Right now we're so desperate that we're considering going to the Comcast DVR b/c paying for Tivo service that doesn't work (and doesn't have Dual Tuner to digital channels) isn't worth it. The new Tivo Premiere doesn't access ANY of the Comcast On Demand content and we don't have HD tvs. Comcast Tivo only available in New England - no word on when it's coming to baltimore.

    Help?! Will the steps described in this post help us? :confused:

    Thx -
     
  3. May 13, 2010 #63 of 122
    betts4

    betts4 I am Spartacus!

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    A Galaxy...
    Maybe it's not me. Maybe it's baltimore. I live in the city too, close to hampden. I have two single series 2's. PM if you want to compare notes or meet at a starbucks and talk about this. I am losing my mind too (see above post).
     
  4. May 21, 2010 #64 of 122
    dgtucker

    dgtucker I like cheese

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    Nashville, TN
    I just wanted to jump in and give another vote of confidence on GGray's excellent cable. It worked great with my little Thompson, and I have to say the cable itself is a whole lot better-put-together than anything I could have come up with just following the schematics myself. Simple design but rock solid! No more frustrations with my old-school analog TiVo. :)
     
  5. May 21, 2010 #65 of 122
    betts4

    betts4 I am Spartacus!

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    I am going to try again, next week, maybe tuesday, sometime after the season finale of LOST (which I know is sunday, but chuck is monday).

    I am hoping if I do it myself, following instructions the way I read them, it will happen.

    On a side note, calling comcast last night for help on the new on demand box (which the tivo sits idle next to) the comcast guy told me I could have somebody come insert a cable card into my tivo. I asked "you mean, put it in my tivo box?" and all I could think of was some back alley surgeon messing with my precious baby and there was NO way in heck that was happening.
     
  6. May 21, 2010 #66 of 122
    akc

    akc New Member

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    Mar 13, 2003
    Hi - I have a Comcast DTA on a Series 2 DT and right now have lost the DT functionality. There is a VCR on this same TV set up. Could you possibly please explain how you are suggesting to set it up using the VCR as a Tuner? Will that allow me to Tivo (record) all the Comcast channels accessible with a DTA? I don't mean watch a digital channel and at the same time record another - I simply want back the ability to tape two cable channels at once. (I'll still be down one viewing option, I think bc right now, I could actually watch a third channel live using the VCR tuner separately with a RF cable, but I can live with that.) And, I was going to try using GGray's cables bcnu channels change but unreliably to the *correct* channel. Dies this setup you recommend still work then?

    I was considering going to a full Comcast digital set top box (with OnDemand) to get my dual tuner back but on this TV, I don't need all that fxnality and would sure prefer NOT to spend another $10 / mo on my Triple Play bill!

    Thanks so much!


    Thanks so much for the help!
     
  7. May 21, 2010 #67 of 122
    classicsat

    classicsat Astute User

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    Feb 18, 2004
    Ontario Canada.
    Basically it is this:
    The DTA only has an RF out. The VCR is acting as an RF tuner, to provide A/V for the Series 2 DT, so it can still be set up for analog cable (split to TiVo RF in and DTA RF in) and cable with box (DTA through VCR.)
    It will provide dual tuner for the remaining analog channels, single tuner for the channels through the DTA.
     
  8. May 21, 2010 #68 of 122
    akcorcoran

    akcorcoran New Member

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    Sep 24, 2009
    Hi - OK, thanks. Does the Tivo know to pursue the DTA signal when it's a channel that is *not* available through regular RF analog? And, in unlikely chance that a Season Pass is set up to tape two digital channels at once, do you know what happens? I know that a digital OnDemand box has the same problem with this (and it basically can't work) but do you know what happens?

    On our OnDemand box, if you end up with two shows taping, one digital and one analog, what happens is that it goes to the basic cable channel (lists "cable" as the source) on one tuner and then the digital channel (lists "box") as the other. So, it navigates that correctly. What happens after that, however, is highly aggravating as then the tivo stays on the cable source thus not changing the channel on the digital Comcast box - and so we're off channels again.

    This whole thing is *so* frustrating. And, I read that even if you got the Comcast Tivo (which is only available around Boston), you can no longer use OnDemand. Now, I may be frustrated with Comcast, but i will say we've got some great programming available for free or paid through OnDemand so I wouldn't want to give that up. This is all, I'm sure, an effort to get us to go to the Comcast DVR!

    Thx for any more info -
     
  9. May 21, 2010 #69 of 122
    classicsat

    classicsat Astute User

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    Ontario Canada.
    You would set the Channels I Receive list so the digital only channels are only checked for "Box.". As far as the TiVo is concerned is another cable box.
     
  10. May 21, 2010 #70 of 122
    MikeAndrews

    MikeAndrews Registered abuser

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    Northern...
    When you go setup channels, you can add/delete and favorite which work on the cable or the box. If you want it to only use the channels it can tune on the cable you delete that channel that says box.

    I hacked a bit and there isn't a way top set a priority when you have both sources. I just deleted the box channel where the direct channel was just as clean. This means it can dual tune those and only tie up the DTA when it's the only source for that channel.
     
  11. Jun 5, 2010 #71 of 122
    akc

    akc New Member

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    Mar 13, 2003
    OK - so here's my update.

    First of all, Gary Gray, you are a genius. I ordered the IR serial cord that you created and they work perfectly. Anyone struggling with a Comcast DTA, you *must* order immediately. The Tivo Series 2s with just the DTA are working perfectly. Only warning is that i goofed originally and had the cord backwards (wrong end into wrong device) - once I realized my error, all was well. Thank you, thank you, thank you.

    Now - my problem is still with my Dual Tuners with a Motorola Digital Box. It's a OnDemand box but not a Comcast DVR (though, I must sadly admit that I'm considering going to the comcast DVR b/c it's just getting ridiculously frustrating). At first, I had major problems with the channel changing - with the elimination of one DTA, that seems to be working better although not totally consistent. Most frustrating is that Fox goes to OnDemand every time. (Not that you care, but missed A. Idol finale and So You think you can dance premiere - these are imp't to me!) I tried putting the IR receptors in place and duct taping around them to create a protective area, and for the most part, channels will come change correctly, but not consistently. I've been through the Advanced IR set up.

    Any suggestions? Gary, any chance I could bribe you to create an IR cable that works with a Motorola digital OnDemand box? Any modifications I could make? Any other ideas?

    Thanks - if not for this board, I would never have found Gary's cables which saved me a lot of frustration. I appreciate it!
     
  12. Jun 6, 2010 #72 of 122
    PatEllis15

    PatEllis15 Member

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    Mar 2, 2010
    Hey folks:

    I'm getting very frustrated with my old Series 2.

    Several months back, we finally upgraded to digital cable, and I was NEVER successful in getting the IR blasters to work with the box, and my Series 2. I eventually gave up, and put the Cable box on a different TV, and left the Tivo with just "basic" cable.

    Now, we have had the forced migration to digital, and I'm trying to install a DTA onto the TV with the Tivo. Knowing the problems that I had with the IR blasters, I did research, found this thread, and bought Gary's cables.

    I've gone through the guided set up about a dozen times, and it just can't change the channels. I have the Thomson/Motorola box (very small). I've told the Tivo it's Thomson, Motorola, and even "comcast DTA". The channels just won't change. I'd hate to give up on this Tivo, as it has a life time subscription....

    I'm telling the tivo "05", "No" (with regards to hitting enter), that the IR cables are properly installed etc etc.


    Any suggestions?

    Pat E
     
  13. Jun 6, 2010 #73 of 122
    lessd

    lessd Well-Known Member

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    The cable works as i have installed them on four Series 2 TiVos without problems.
    Problems you can have
    Plug the cable into the Series 2 (IR connector) with the 3 connector end and the cable is now N/G, you have to send it back
    On guided setup you must select digital cable box, and when you are given the type you must select other than the Comcast (free) DTA will show up.
    The Comcast free Digital box must first be setup with Comcast, you must connect it to a TV and use the supplied remote and make sure the box works without the TiVo, for me it required a call to Comcast.
    That is the extent of my knowledge on this.
     
  14. Jun 7, 2010 #74 of 122
    PatEllis15

    PatEllis15 Member

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    Mar 2, 2010
    Yikes, just plugging in the wrong way can kill the wire? I suppose that that must be it. Time to order another one....


    Pat E
     
  15. Jun 7, 2010 #75 of 122
    lessd

    lessd Well-Known Member

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    It only happened to me once, I learned my lesson, read the instructions first.
     
  16. Jun 8, 2010 #76 of 122
    GGray

    GGray Member TCF Club

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    Plugging the direct cable in backwards is not likely to damage it. Most failures appear to be caused by static electricity. This makes failures more common in cold weather, but still very rare.

    Gary
     
  17. Jun 8, 2010 #77 of 122
    GGray

    GGray Member TCF Club

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    Call TiVo customer support and get their help with the IR Blasters.
    Once you get the IR Blasters working, swap in my cable. The direct cable is much more reliable than the IR Blasters.

    Gary
     
  18. Jun 8, 2010 #78 of 122
    GGray

    GGray Member TCF Club

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    Many of the Comcast set top boxes don't have an IR input jack like the DTAs, so using a direct cable is impossible. One exception is the PACE RNG110. My direct cable works with it.

    Gary
     
  19. Jun 10, 2010 #79 of 122
    betts4

    betts4 I am Spartacus!

    28,518
    391
    Dec 26, 2005
    A Galaxy...
    Wish me luck! I am trying again tonight. All by myself.
     
  20. Jun 10, 2010 #80 of 122
    lessd

    lessd Well-Known Member

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    Oh! I got two more for friends, better check them out.
     

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