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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. Sep 2, 2008 #81 of 190
    sh0knah

    sh0knah New Member

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    Sep 2, 2008
    I agree that the s-video being connected or not SHOULDN'T affect the recording. But, in a moment of desperation (I was actually contemplating getting a DirecTV DVR :eek:), I tried it.

    Short story: it worked!

    I was having intermitent freezing on my Tivo for months. It would just hang. I had to unplug it and reboot. I missed quite a few recordings that way. I was seriously frustrated.

    Even when it was working, it would pixelate, stutter, etc., so badly on some shows that they were unwatchable.

    So I noticed this in the forum. I thought, "That's impossible. That won't make a difference." But I (again, in desperation) walked over to my TV, unplugged the S-Video cable and plugged in the composite cables. (I had them there from a previous device.)

    I am now 3 months WITHOUT A SINGLE PROBLEM. No freezing. No stuttering. No pixelization. And no frustration.
     
  2. Sep 30, 2008 #82 of 190
    cowmommy

    cowmommy New Member

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    Dec 27, 2006
    I had this problem, only I wasn't using s-video and only had one set of A/V cables hooked into the back. I took it apart today and put another power supply in it that I wasn't sure if it was dead or not(it was LOL) but when I put the power supply back in that I had just taken out and blowed everything out with compressed air the second tuner is working again. So I'm not sure if it was just a loose connection or if it's just temporarily working but right now it's working. I'm not holding my breath though and if I can get my hands on a refurbished RCA DVR40 to have on hand for when this one totally dies I'm so going to get it
     
  3. Jan 4, 2009 #83 of 190
    gquiring

    gquiring New Member

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    Dec 13, 2002
    Matawan, NJ
    I wish I found this thread before I did all this work. My HDVR2 started getting artifacts and constant searching for sat 2 messages. I swapped with another HDVR2 (where I only had 1 wire hooked up) and it had the same issues. So I assumed it was the 13 year old dish or wiring. I bought new wire and ran the cabling to my newer dish that has a HR22 connected to it. I was shocked that it did not solve the problem.

    So I disconnected my SVideo cable and it is no better. I soft booted the DVR. Do you need to cold boot when switching to the composite?
     
  4. Jan 4, 2009 #84 of 190
    PrimeRisk

    PrimeRisk TechnoGeek

    799
    3
    Dec 16, 2002
    Denver, CO...
    The new cabling solved the problem? Did you mean it didn't solve it?

    You don't need to reboot to change out the s-video or composite cables.

    Maybe I'm not reading you correctly here, but it sounds like you have two different HDVR2s that pixilate/lockup/generally act badly when hooked up at a certain place in your house. Do either of them act ok at a different location in the house?
     
  5. Jan 5, 2009 #85 of 190
    gquiring

    gquiring New Member

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    Dec 13, 2002
    Matawan, NJ
    Ooops typo on my part. They did not work after the new cabling.

    I have two HDVR's but one was always installed with one tuner in the basement. When the HDVR2 tuner 2 acted up in the den I swapped it for the one in the basement. It never crossed my mind that the DVR in the basement was connected with only one tuner and would have an issue with tuner 2.

    I opened one of the HDVR's up and the cap's don't look swollen.
     
  6. Jan 5, 2009 #86 of 190
    PrimeRisk

    PrimeRisk TechnoGeek

    799
    3
    Dec 16, 2002
    Denver, CO...
    Ok, I missed that you had only used one tuner on the other HDVR2. I've had to replace power supplies on a few DTiVos that showed no indication of popped caps, but it is odd that both of them are acting up at the same time. It certainly is possible due to the age that all DTiVos are getting to now, but it just seems a little coincidental.

    A couple quick questions: Are your DTiVos hacked and/or disconnected from phone lines so the software versions are up to date? Some older versions of the DTiVo software seemed to have an impact on tuner 2 occasionally not activating. The solution to this was to power cycle a couple times in place to get the 2nd tuner working.

    A few easy straws to grasp at:

    Check the signal coming to the TiVo->
    You re-ran a new cable, but maybe it wasn't the cable. It could be the multi-switch (either inline or on the back of the dish). Bring up the tivo and and get good lock on tuner 1 then swap the cables between tuner 1 and 2 (on the TiVo end). If Tuner 1 is now at 0 signal and tuner 2 is good, you'll probably need to look upstream. (You may have already done this, but it never hurts to ask)

    Check the plug->
    Do you have a volt or multi-meter that you can check for voltage drop at the wall? I've run into a problem on a friend's home theatre where so much was plugged in to one electrical circuit that there was enough voltage drop cause all types of wierd issues with a computer and a DTivo.

    If you don't have a meter, I recommend going back to the location in your house where you only have one hookup and booting up with a cable only on the 2nd tuner to see if that tuner comes up there. If it does, swap the cable to tuner 1 without rebooting and see if you can get both tuners to work. If it does, you need to look into what's going on in the other location.

    If all of those things fail, I think you're looking at a powersupply fix.

    Swap the powersupply vs. fix:
    I'm handy enough with a soldering iron, but it's still a pain in the arse with no guarantee. Look for a cheap used DTiVo on craigslist.org (I often find them for $25-$30). Once you bag a cheap one on craigslist just hook it up in place (sans phoneline) and see if both tuners come up and let it run for a few hours (you'll get a great opportunity to see ALL the PPV previews). If all is well, then you have the choice of calling D* to see if the TiVo is clear of non-paid PPVs and etc and switch your account on to that box. If D* has a payment backlog on the unit you can crack the case and swap out the power supply with your TiVo and hope that it fixes up your unit.

    Of course, if this works you now have yet another used powersupply that could last 20 hours or 20 years, but at least you'd have the time to order a new power supply from dvrupgrade or the caps and try out your own soldering skills.

    Good luck, I hope you can get the dual tuners working again. Let us know.
     
  7. Jan 5, 2009 #87 of 190
    PrimeRisk

    PrimeRisk TechnoGeek

    799
    3
    Dec 16, 2002
    Denver, CO...
    Yes, I am quoting myself as a follow-up on my DTiVo that developed the pixelation issue a little over a year ago.

    Said DTiVo has sadly bit the dust. Not long after I posted the above message I swapped out the power supply from a know good unit and was able to resume using both SVid and Composite. (Validating the theory that the PS was the culprit).

    Unfortunately the issue re-appeared in November. Only on the occasional recording, but the frequency advanced over 3 days to any recording where TiVo was recording 2 shows at once; And a couple days later new trick appeared...random reboots and lockups. I pulled the SVid and the 2nd composite to no avail for either issue. I swapped powersupplies to another known good and it seemed to lessen the pixelation, but the reboot and lockup issue continued even after swapping in a new drive with a fresh image. Houston, we have a problem. There was something else terribly wrong with TiVo and it was time for the spare part pile.

    Thus started the month-long multi-call ordeal with D* to swap out this TiVo with another boxed refurb I picked up awhile ago. This was my very first DTiVo...from 2002...and as such was the "master" unit on my account. D* apparently has significant difficulty swapping out the master unit when you are grandfathered into an old channel package. Dropping that package is ok, re-adding it again took an act of congress. Getting the price right again was even worse. To top it all, all of my units kept losing locals and the TiVos lost their authorization to record every Monday for a month. NASA is still working on figuring out the billing SNAFU created by adding, dropping, and re-adding all of my services 10x. 6 months at $10 off was called even. We've had smooth sailing for a month now, so I hope that ordeal is over.

    R.I.P. Original DTiVo (3/2002 - 12/2008)
     
  8. Jan 5, 2009 #88 of 190
    gquiring

    gquiring New Member

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    Dec 13, 2002
    Matawan, NJ
    I will try another power source as that has crossed my mind that maybe that plug has a problem. But it is plugged into an APC UPS. Maybe the UPS?

    As for the signal I have two dishes one 13yrs old and the other 1yr old. No extra multiswitches. The new dish has a HR22 on it which works perfectly. When I plug either of these HDVR2's into the new dish they both experience the tuner 2 issue.

    What I did tonight before reading your ideas was to swap the HDVR2's again since the other one was sitting all night unplugged and is now cold. I blew out the crap in the fan and circuits. The fan was really clogged. When I fired it up no bouncing of 90 to 0 on tuner 2!! But this one gets 100% artifacts on all channels. So I decided to do a clear all. It's still processing.... I think I have two problems, this DVR may also have a bad hard drive.

    Version on the hacked DVR is 6.4a. It has a 100gig drive in it because the original drive died very early on about 4 years go. The unhacked one (drive issue) I did not check the version. But both do have working phone connections.
     
  9. Jan 7, 2009 #89 of 190
    gquiring

    gquiring New Member

    338
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    Dec 13, 2002
    Matawan, NJ
    Some interesting news. I decided since it was 11pm to just let it do a clear all and let it run the night. In the morning I went through the entire setup and for the last 2 days I have not had one flashing sat 2 message. The picture is perfect on both sats, no pixelation issues.
     
  10. Jan 22, 2009 #90 of 190
    TXKenny

    TXKenny New Member

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    Jan 19, 2009
    Texas
    Replacing the large caps in the power supply (under the regulator heat sink) has fixed my two DTIVOs (DSR-708s) for around $5.00. These caps are prone to fail over time under continuous heated use. Disconnecting the S-Video cable which temporarily corrects the tuner #2 problem only makes you think the problem is fixed but power supply failure is eminent due to the deterioration of one or more of the electrolytic capacitors on the power supply board. Reciever 2 is the first sign of problems and it becomes progressively worse until the DVR won't startup. At that point you think you have a dead hard drive. Simply replace those caps and everything works again. That's the story of my 2 DSR-708s and thanks to the instructables.com link here that I was able to figure it all out and save big $$.
     
  11. Mar 4, 2009 #91 of 190
    Greg944

    Greg944 New Member

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    Dec 21, 2005
    We have 4 HDRV2s that have been showing symptoms of pixilation with the S-video connection in use, and none when only composite was used. I recently tried a new power from a well know supplier (we'll see how they handle this problem) and it had the same problem. There was one problem, it wasn't a new power supply. From the picture attached you can see the 0430 date code; week 30, 2004.

    So check the "new" replacement, the capcitors might be as old as the one you're trying to fix.
     

    Attached Files:

  12. Mar 4, 2009 #92 of 190
    rbtravis

    rbtravis New Member

    1,457
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    Aug 9, 2005
    Parker, Co....
    Greg944: An old date does not mean the power supply is used. It could have been purchased, sitting on a shelf, and never used. Hence it was new. If you want them fixed CCS corp is the place to fix them for you but some what expensive at $100.00 flat rate with a 90 day warranty. They will fix the power supplies and the tuners. However it is a lot cheaper to use an RCA plug cable instead of the S-Video cable. Its a lot cheaper.

    http://www.ccscorporation.net/dss.htm
     
  13. Mar 5, 2009 #93 of 190
    Matt310

    Matt310 New Member

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    Jul 18, 2003
    true, but in my experience (as well as many others I have read), that's only a temporary fix, eventually, the problem will increase to the point where it happens when using only the composite connections.
     
  14. Mar 5, 2009 #94 of 190
    rbtravis

    rbtravis New Member

    1,457
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    Aug 9, 2005
    Parker, Co....
    Matt310:
    I am currently running 7 Directv Tivos and have had none of the problem's you have experienced. But then I keep my TiVo's running cool and clean them out every couple of years. Preventive maintenance does work, and I have had no failures, but I do not use S-Video because I have heard of this problem and have chose not to risk it. CCS corporation has a history of fixing tuner problems as well as power supply problems. The objective of this forum is to get the customer running as cheaply as possible. :) I use the Red, White, and Yellow RCA plug cables. I have never recommended the composite connection. That is your suggestion!
     
  15. Mar 5, 2009 #95 of 190
    OLdDog

    OLdDog Reformed Druid

    2,384
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    Dec 15, 2001
    Sorry but Red, White, and Yellow RCA plug cables is the composite connection. In particular the "yellow" wire carries composite Video.

    S-video breaks this into separate color and luminance signals. Component also breaks the color signal into two parts.

    For some reason, believed power supply related, using s-video from some series 2 causes breakup of the signal on tuner 2 and changing to composite eliminates or greatly reduces the problem.

    This switch does not always prevent or cure the problem and a power supply repair or replacement becomes needed.
     
  16. Mar 6, 2009 #96 of 190
    Matt310

    Matt310 New Member

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    Jul 18, 2003
    my machines are well-maintained also and have never been in a closed cabinet or exposed to excessive heat. Your assumption that those of us who have experienced the problem must be abusing our equipment is rather presumptuous, and, at least in my case, quite incorrect.
    you have this part right, they fixed the issue with mine very nicely
    really? I was unaware of this very specific mandate, I thought the point was to understand the problem as completely as possible so everyone could make an informed decision from all available options. I didn't realize it was inappropriate to discuss solutions that cost money.

    um, if you're using the "red, white and yellow RCA cables" you ARE using the composite connection :)
     
  17. Jun 2, 2009 #97 of 190
    kruss77

    kruss77 New Member

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    Nov 18, 2006
    Fenton, MI
    OK, I've read countless threads on this subject -all of which seem to point to a problem with power/voltage regulation at the connector locations. However, I have yet to see a single thread debating WHY this might be happening (ie: what is it about these systems that might be causing this and why are only some models affected and others are not?). Unfortunately, most of this debate ends once people find a short-term work around (modifying their cabling practices). However, there is almost no discussion beyond that. I continue to be impressed by the all of the exceptional analytical advice that comes through this board, but I’m a little surprised that this all ends with a recommendation to change your cabling strategy. CCS Corporation seems to have figured it out, so I know one of you guys can figure it out as well (based solely upon the quality of the advice I get from this board). Surely someone has a suspicion of what CCS is doing to these machines to fix this problem. The capacitor issue is a good start. But even it doesn’t solve everyone’s problems (some it does, some it doesn’t). I know some of you guys are good with electronics. How about some theories?
     
  18. Jul 10, 2009 #98 of 190
    MrAP

    MrAP New Member

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    Sep 14, 2003
    Yes, it would be great if those who are good with electronics can find a better fix :)
     
  19. Jul 10, 2009 #99 of 190
    rbtravis

    rbtravis New Member

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    Aug 9, 2005
    Parker, Co....
  20. MrAP

    MrAP New Member

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    Sep 14, 2003
    Thanks but I was referring to the earlier posts where replacing the capacitors didn't help the tuner 2 problem.
     

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