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Time Warner Cable Tuning Adapter (ALL LOCATIONS) / Bugs & Issues

Discussion in 'TiVo Series3 HDTV DVRs' started by dolfer, Feb 26, 2009.

  1. Jul 22, 2009 #201 of 1485
    legendarybc

    legendarybc SDV is FUBAR'ed

    50
    0
    Dec 17, 2006
    North Canton OH
    Incoming cable from street-->2-way tap (for modem)-->4-way splitter

    1:Terminated at splitter
    2:Master Bedroom, feeds TiVo S2
    3:Spare room, feeds QAM to DTV
    4:Main room, split once again behind cabinet, 1 for TiVo S3 and 1 for the TA

    While writing this post, I removed the splitter behind the cabinet. #4 now feeds the TA which in-turn feeds the S3. The levels are now:

    Tuner -4
    FDC -10
    RDC 49

    In any case, there are no amps, attenuators, or extra equipment. Signal strength at the TiVo is anywhere from 95 to 100, SNR's are usually 33 to 35. 99% of the time, no RS uncorrected errors.

    My next experiment is to take the 4-way splitter out and see how that affects my TA levels.
     
  2. Jul 22, 2009 #202 of 1485
    SCSIRAID

    SCSIRAID Active Member

    2,321
    0
    Feb 2, 2003
    Vero Beach, FL
    Is the cable modem drive by a 'tap' or a 'splitter'? You might try removing the CM tap/splitter and putting driving the CM from the 4 way splitter with the incoming cable directly driving the 4 way splitter. I would use the 'feed thru' capability of the TA instead of splitting and driving TA and TiVo independently.

    There is some low frequency loss going on somewhere... perhaps the local node needs some calibration.
     
  3. Jul 22, 2009 #203 of 1485
    bradenmcg

    bradenmcg Big Geek

    30
    0
    Dec 28, 2007
    Mayfield...
    Wow, happy I found this thread.

    We have SDV in Mayfield Heights, OH (suburb of Cleveland).

    Ever since getting the TAs, we haven't gotten any (or very few) recorded suggestions. My wife and I are both VERY annoyed by this.

    That aside...

    One of our two TivoHDs gets sporadic "macroblocking" / "pixelation" and sound drop outs. In an effort to troubleshoot, I have tried:

    Swapped TAs between the units - no change
    Swapped the actual Tivos between physical location (using the same cables)

    What's more odd is that it only seems to happen more at our main viewing area, the living room. The other THD is in the bedroom and we don't watch it as often (except during sweeps, when it records so we can transfer downstairs to watch later). Didn't notice much or any before the TA. Don't have a splitter handy to bypass the TA although I'm planning on picking one up. I did just try swapping the cable that TWC supplied - it actually looked decent, may have been RG6, had decent snap-n-seal connectors on the ends. The swapped cable (between Tivo & TA) seems to have made a minor improvement in blocking but it's hard to say as it is intermittent anyway.

    When I do have blocking, RS corrected and uncorrected errors DO NOT change - they are always zero.

    FDC on TA: 75 mhz | level -4dBmV | s/n 28dB
    QAM (currently): 573 mhz | level 0dBmV | s/n 35dB
    RDC on TA: 21 mhz | power 55dBmV | retrans: 4

    My cable plant is as follows:
    Single RG6 quad-shield connected to feed from TWC in my attic (had to bribe the installer to get him to walk on my garage roof)
    Feeds down makeshift cable run along with a bunch of cat5e and RG6qs for my upstairs TVs, down to the crawlspace
    2-way splitter, one leg to cable modem
    other leg to ChannelVision 8-way powered distribution amp (CVT-2/8PIA II). It doesn't have reverse amplification, but it also claims to not affect RDC transmission.

    7 of the 8 ports on the CV amp run to a wallplate in my house (all rg6 quad), and anything that doesn't have equipment connected has a proper 75ohm terminator on the connection. This also goes for the unused port on the amp.

    I'm ready to kill someone. The lack of suggestions is INCREDIBLY annoying as suggestions are really one of the main reasons to own a Tivo. By disabling them (however it has been done) they are impacting the features of my equipment. :mad: The pixellation is downright maddening, as it always seems to happen during the middle of important scenes or dialog, and every time it drops out it causes my audio receiver to have to re-train on the dolby audio too (we primarily watch HD channels, most of which are SDV in this market now).

    Help? Please?
     
  4. Jul 22, 2009 #204 of 1485
    dlfl

    dlfl Cranky old novice

    6,991
    16
    Jul 6, 2006
    Near...
    bradenmcg,

    I assume the FDC/RDC numbers you gave are for the "bad" TiVo. What are they for the "good" TiVo?

    It's probably too inconvenient to do, but it would be interesting to run right from your splitter to the "bad" TiVo (taking the amp out of the chain).

    How many A/V glitches do you get in a one hour HD program?

    I find it very interesting that your RS error counts are zero even with glitches. Since your other TiVo does NOT have these glitches, it seems to blow the common belief that zero uncorrected errors means the glitches were in the signal itself.
     
  5. Jul 22, 2009 #205 of 1485
    bradenmcg

    bradenmcg Big Geek

    30
    0
    Dec 28, 2007
    Mayfield...
    I believe similar, but I can confirm that in a bit here.

    Actually it shouldn't be that bad, as all of my cable and the distribution amp are about 1 foot from the 2-way that feeds it and the modem. I should have enough slack on the line to be able to feed direct from that 2-way, bypassing the amp. It is a bit of a pain in the arse though. ;) I'd rather avoid it if possible because I don't think it's a signal problem.

    It varies drastically. We watched an episode of Star Trek TNG (on the HD channel in standard def, lol) and it was intolerable. Easily once every minute or two for a while, but then it stops for a bit, and then continues again. Maddening.

    Yeah, I've lost all faith in any of the error counters, because I'm clearly having problems but NONE of the signal diagnostics show anything of value. Makes it very difficult to troubleshoot or try to point a finger back at the cable company....


    For what it's worth, I just pulled up the manual for the distribution amp, and I noticed that I screwed up minorly. Not sure how much (if at all) it affected. The DAmp has the ability to inject a private modulated video feed for security cams or whatnot. I'm not using this. The amp shipped with a rubber cap over the injection port and I never thought to touch it. I looked at the manual again, and while they don't explicitly mention this, one of the diagrams shows that an unused injector port should also have a 75ohm terminator on the end. I didn't have one on there until about 20 minutes ago... :rolleyes: I'd find it VERY strange if somehow the DAmp was picking up just enough interference on that unterminated, not-wired port to foul up the rest of the system, but I certainly can't rule it out entirely... yet.

    Watching some SDV stuff on the problem location right now, haven't seen blocking yet, but I won't consider it "Fixed" until I am problem free for a few days, which I doubt will happen... :up:
     
  6. Jul 23, 2009 #206 of 1485
    tj68

    tj68 New Member

    2
    0
    Jul 12, 2009
    Milwaukee TWC, TiVo HD with cable card. Works fine till Thursday. I lost most of the cable channel. Still have OTA and a few cable channel. The TWC tech installs a Cisco STA1520 TA and a new Mcard and still no cable channels. So I call TiVo support and the tech can not find a problem, puts me on hold. Comes back and asks to check signal strangth. It's 100 and she says too much signal strangth is the problem and try installing a low pass filter.
     
  7. Jul 25, 2009 #207 of 1485
    tj68

    tj68 New Member

    2
    0
    Jul 12, 2009
    July 17th, 2009 lost channels. TWC tech comes and installs tuner adapter and a Mcard. Still missing cable channels only get the OTA channels plus a few cable channels. Talk to TiVo tech on the phone and she said the SDV channels have to much signal strength. I did find most of the channels to have 100% but a few missing channel have 94% signal strength.

    Milwaukee Time Warner

    Tim
     
  8. Jul 25, 2009 #208 of 1485
    dlfl

    dlfl Cranky old novice

    6,991
    16
    Jul 6, 2006
    Near...
    TWC Southwest Ohio. My signal strengths are in the same range and I'm not missing any channels -- I doubt that is your problem. Only difference is I have 2 s-cards.
     
  9. Aug 11, 2009 #209 of 1485
    Kahless

    Kahless New Member

    6
    0
    Nov 16, 2005
    Hi everyone. I am not a technical expert on this matter about signal strength etc. TWC just did an upgrade of the cable in my HAH community. I once again have the blinking green light on my Tivo & tuning adapter. First comment regarding the tuning adapter. After TWC installed the MS CableCard in my Tivo, I picked up 1/3rd of the digital channels. The tech guy said I needed a Tuning Adapter. TWC wouldn't mail one to me, they wouldn't install one for me, I had to drive 50 miles to Columbus to pick one up and install it myself. It didn't work. Two of TWC techies came out a week later and found out that there is a sequence in installing the tuning adapter to get it to work. You have to turn it on with the cable attached but no Tivo. Then after a solid green light, connect the USB to the Tivo, then connect the wireless USB adapter to the Tivo. If you do it any in other order, the adapter doesn't work right. I originally had 55% signal strength on all channels. TWC must have done something because some problems started when it went to 100%. So I put in a splitter to knock it down and ran an extra line to my HD TV so I could bypass the Tivo. That knocked the signal strength down to 95%. It worked fine for 2 weeks then. Right now since last night, the tuning adapter has a blinking green light but I have all my channels. Rebooting the tuning adapter does nothing, still blinks green.
    I also found either by accident or purpose that TWC inserts local advertisements at 480i on the HD channels. So when I try to fast forward through the commercials I get a black screen and have to "play" the commercial before I can fast forward again.
     
  10. Aug 11, 2009 #210 of 1485
    dlfl

    dlfl Cranky old novice

    6,991
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    Jul 6, 2006
    Near...
    Kahless,

    What a mess! By comparison my experience with TWC has been good. However, I am not satisfied. I have A/V glitches in varying numbers and occasional failure to tune, plus occasional remote control lockups. There is nothing in my TiVo diagnostic screens to pinpoint a problem -- they indicate all is OK. I am caught in the middle. I know if I complain to TWC they will blame it on my TiVo's tuners and if I complain to TiVo they will blame it on TWC's signals. Adding insult to injury is the fact that TWC puts copy-once protection on all their digital channels except local broadcasts, which prevents MRV and TTG.

    For the TiVo HD there is the fundamental problem that neither TiVo nor your cable co can take ownership of the task of delivering good viewing. The cable co doesn't even have an incentive to do so -- they would make more money if TiVo disappeared. And SDV plus Tuning Adapters just complicate things and make the overall system less reliable.

    I'm just living with it because I like TiVo and I gather other digital cable DVR's are even worse. I'm hoping a better alternative will eventually be available -- maybe the (new) DirecTiVo which is supposed to come out next year(?).
     
  11. Aug 11, 2009 #211 of 1485
    dwgsp

    dwgsp New Member

    150
    0
    Aug 27, 2005
    Perinton, NY
    My cable company also inserts 480i commercials, but I don't experience the problem that you're having. I suggest that you configure your Tivo to always output 720p or 1080i (which means that it will convert the 480i commercial to one of those resolutions), and see if the problem goes away. If it does, then it's likely that your TV is not handling the change in resolution from HD to 480i.

    /Don
     
  12. Aug 16, 2009 #212 of 1485
    KungFuCow

    KungFuCow Thread Killer

    2,516
    0
    May 6, 2004
    Maybe someone here can help me out with this.

    Since the analog bug was pretty much rendering my Tivo useless, I upgraded to digital cable and got a cablecard. Now I need a tuning adapter.

    Problem is, I live in an apartment and cable is supplied through a bulk account. I cant order a tuning adapter online. CSRs dont even seem to know what tuning adapters are. Anyone got any insight on how I might be able to score a tuning adapter?
     
  13. Aug 16, 2009 #213 of 1485
    dlfl

    dlfl Cranky old novice

    6,991
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    Jul 6, 2006
    Near...
    I assume you are sure you need a TA, i.e., TWC is using SDV in your area (?). If you're not sure check their web site for Switched Digital Video and the CSRs should also be able to tell you.

    If you do need a TA you have to push it with the CSRs. They have to have TA's and have to supply them to you either by delivering one to you or having you pick one up at a store.

    If you can't get anywhere with the CSRs and their supervisors, there is a TiVo CABLECard help line that I assume would be a logical place to try. I don't have it handy, so just go into TiVo support and hunt around.

    One tip: the short coax cable that comes with the TA kits is notoriously bad, regardless of how nice it looks. If an installer is handy he can make up a new cable in a minute. Otherwise buy one.
     
  14. Aug 18, 2009 #214 of 1485
    dolfer

    dolfer Myles Standish Proud

    709
    0
    Nov 3, 2000
    Milford,...
    I finally took my TA into TW and got a new one on Friday. So far so good! No reboots... I really hope I just had a defective unit before...

    I will keep everyone posted when I make it to a few anniversaries w/out a reboot.
     
  15. Aug 18, 2009 #215 of 1485
    dlfl

    dlfl Cranky old novice

    6,991
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    Jul 6, 2006
    Near...
    Fingers crossed! I had to reboot my TA recently after one month in service. It was after an electrical storm came through so maybe that did it. It's on a surge protector but not a UPS, or the storm could have affected the cable system too.

    Funny thing this morning. We have one TV on a direct cable input, so it gets the analog versions of the basic channels. All the channels froze at a fixed video picture with no audio for a long time this morning. Power cycling the TV brought back the same frozen image, so it wasn't something the TV was buffering (if it can even do that). Maybe it was some fiddling around TWC was doing in prep for their Aug 25 channel shuffle. It was OK later.

    Our TiVo/TV setup had no problems during the same period, so it looks like whatever they did affected the analog channel versions only.
     
  16. Aug 18, 2009 #216 of 1485
    pmiranda

    pmiranda New Member

    669
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    Feb 12, 2003
    Austin, TX
    What channel shuffle is this? Can you share any more about that? More HD's? More bandwidth for the ones we have?
     
  17. Aug 18, 2009 #217 of 1485
    dlfl

    dlfl Cranky old novice

    6,991
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    Jul 6, 2006
    Near...
    This is for southwest ohio (Cincinnati and Dayton areas). More HD's yes but more bandwidth per channel?-- I'd be surprised.

    I believe everyone affected received a letter. There is a special web page on this but I don't have it handy right now. Unless you're in the affected area it would be meaningless to you anyway.
     
  18. Aug 18, 2009 #218 of 1485
    pmiranda

    pmiranda New Member

    669
    0
    Feb 12, 2003
    Austin, TX
    Oops, didn't notice we're in different areas. Good luck!
     
  19. Aug 18, 2009 #219 of 1485
    dolfer

    dolfer Myles Standish Proud

    709
    0
    Nov 3, 2000
    Milford,...
    Are you sure there are more HD's???? I don't think I rec'd the the letter? Or perhaps my wife threw it out! :mad:

    I remember seeing something on a web site but it only mentioned shuffling stuff around. Which scares me! Hopefully our guide will get the changes ASAP! I don't remember any mentions of new HD.
     
  20. Aug 19, 2009 #220 of 1485
    Grumock

    Grumock New Member

    412
    0
    Dec 16, 2008
    Nowhere...
    I understand you are on a bulk account but when you upgraded is that account in your name? I would think that you can go to the your local TWC site & & fill out the order form for a TA. I think if you live in the Raleigh area they Fed-ex them to you.
     

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