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Series 3 HD Reboots Randomly

Discussion in 'TiVo Series3 HDTV DVRs' started by dmartin5454, Apr 30, 2014.

  1. nooneuknow

    nooneuknow TiVo User Since 2007

    3,554
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    Feb 5, 2011
    Cox Cable...
    Don't forget that WK sells new-old-stock, which means the power supplies have been in the warehouse for nearly as long as the product they go in has been around.

    They should still give roughly as many years of life as the original did, which should be long enough to not merit something as insane as paying that much, and then replacing "the usual suspects" caps, just because they "tend to go bad".

    I'm in full agreement that they are over-priced. But, they must be selling them, or they'd have reduced the price by now, I would think...
     
  2. Welshdog

    Welshdog Tivo this, punk!

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    Jan 3, 2005
    Austin, TX
    Thanks Squint, I'll PM Tim since he is closer to me. That's a very nice thing you guys do for folks.
     
  3. Welshdog

    Welshdog Tivo this, punk!

    310
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    Jan 3, 2005
    Austin, TX
    Got my PS recapped (Thanks Tim!!) and the S3 is behaving better - no random reboots. We are still seeing some hangs during show playback. Also even some pixelation/breakup during live TV. Just to get somewhat of a clean slate here I did a C&DE today. One thing I'm a little confused about is my Season Passes. I thought the active ones (ones with shows airing) would repopulate from information stored at Tivo Central. So far I have not seen this happen. Am I wrong here or is there something else I need to do?
     
  4. Gregg12y

    Gregg12y New Member

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    Apr 2, 2010
    I am having problems with my TCD 658000 rebooting during playback, sometimes several times an hour. I contacted Tivo and they told me that this is a known issue with Series 3 units and that they are working on it.
     
  5. sfhub

    sfhub Active Member

    1,269
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    Jan 6, 2007
    They are probably referring to the issue with reboots at the end of show playback. This was resolved on TiVo's end and should be resolved upon next connect to TiVo.

    http://www.tivocommunity.com/tivo-vb/showthread.php?p=10233626#post10233626
    http://www.tivocommunity.com/tivo-vb/showthread.php?t=520735

    However if you are having random reboots all over the place, it might not be the same issue. You might have some hard drive or power supply problem.
     
  6. Welshdog

    Welshdog Tivo this, punk!

    310
    0
    Jan 3, 2005
    Austin, TX
    So after the power supply recapping and the CD&E the S3 Tivo still pixelates randomly on OTA recordings. This unit does not have cable cards. Last night we watched Sleepy Hollow OTA with no issues. Then we watched Gotham OTA and it had a couple of places with bad pixelation/audio drops. I checked Gotham which also recorded OTA on our Tivo HD from the same signal sources and it was clean. I'm wondering if the hard drive in the S3 has an issue? I've run various kickstarts with no change. This S3 does have a non-approved external drive on it which could also be a source of problems.
     
  7. dmartin5454

    dmartin5454 New Member

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    Feb 20, 2009
    Ft. Collins, CO
    Another update on my TiVo HD that was (and continues) spontaneously rebooting. I re-capped the power supply board, installed a new disk drive, and even desperately bought a "new" power supply board from Weaknees. Nothing really seemed to help. Last week, I took everything apart and noticed two different issues. The first one I mention just in case it might help others, although it didn't seem to make a difference for me. The main mother board is attached to the chassis with 8 or so screws. I noticed that all of the connection points on the board where the screw went through were corroded. See attached photo "CorrodedConnection" as an example. I took all screws loose and scraped/cleaned the connections. Again, that didn't seem to help matters, but made me feel better. Ok, on to the real problem -- one of the capacitors on the motherboard was loose, to the point that it was barely connected at one end. See other two photos, different views. It looks like the surface mount pads were lifted up and my attempt to re-solder didn't work. So, my question for folks here is, would it be possible to hand wire to specific alternate points on the board that I could solder wires to and connect to the capacitor, with it just lying somewhat loose? Any other suggestions? I'm guessing this is the root cause of my reboots -- the TiVO will go anywhere from less than a day to a few days before it reboots.
    Dave M.
     

    Attached Files:

  8. unitron

    unitron Active Member

    16,387
    2
    Apr 28, 2006
    semi-coastal NC

    Using wire to extend the leads of the capacitor will add inductance (has the opposite effect from capacitance, and since the wires will be 2 conductors separated by insulation (plastic and air, in this case), that will also add capacitance, and the wires will also act as little antenna to pick up who knows what interference.

    You'll be creating a condition whose effects will be incalculable.

    Did you bump that thing, by any chance?

    Read up on Chip Quik and I'll be back later to talk more about possible options.
     
  9. dmartin5454

    dmartin5454 New Member

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    Feb 20, 2009
    Ft. Collins, CO
    Hi Unitron, thanks for your reply. I don't know how the capacitor came loose. Given its location and the fact that I have taken the unit apart many times, the possibility that I bumped it once upon a time is quite probable. I looked up Chip Quick and watched a couple of videos. Wish I had known about it before! At this point, it appears that the surface mount pads on the board were lifted up and are probably still attached to the capacitors. I might be screwed, huh? I suppose worst case is I could buy a new Roamio, and just use this unit as a no-cost option for an HD connection for my second TV (I have Comcast service), and I could use it to watch shows previously recorded from the Roamio on the second TV. I just can't rely on it to record shows due to the possibility of a reboot right in the middle of the recording, which has happened numerous times already. When it is working, it works just fine, it is just a ticking time bomb. If you have any other suggestions, I would appreciate it.
    Dave M.
     
  10. nooneuknow

    nooneuknow TiVo User Since 2007

    3,554
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    Feb 5, 2011
    Cox Cable...
    This can be fixed. You just need to (ultra-carefully) directionally sand/scrape the insulating coating off the trace, and either solder-bridge the cap to the traces, or use something like fine stand copper wire (lay a few stands flat), or lay flat that desoldering wick stuff, to create a new gapless solder connection. Once done, and verified the cap is electrically connected, I'd advise adding superglue, to insure your work doesn't lift-off if bumped, or the TiVo gets jarred (especially if you ever sell it and have to ship it). I generally don't recommend using superglue pre-repair. Even post repair, if you accidentally bond a tool or finger to the component or trace, you'll tend to create more damage.

    Unitron might be able to find the post where I laid-out repairing lifted traces and mounting pads, in more detail.
     
  11. unitron

    unitron Active Member

    16,387
    2
    Apr 28, 2006
    semi-coastal NC
    I have used superglue to re-attach traces to a circuit board--smells really good when you heat it up to resolder whatever. Not.

    But after getting that SMD cap re-attached and verifying that everything is fixed, I'd use a little bit of Room Temperature Vulcanizing (smells like vinegar as it cures) silicon caulking to create a non-rigid bond between the side of the cap and the motherboard. It can be removed without damaging anything if ever necessary. Just don't put it where the solder connections are.


    dmartin5454, if that cap's leads are damaged, post all the lettering on it and I'll see if I haven't got another one on a scrap S3 board I've got around here.
     
  12. nooneuknow

    nooneuknow TiVo User Since 2007

    3,554
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    Feb 5, 2011
    Cox Cable...
    I thought about that after posting: That superglue, post repair, might make future rework difficult. I've had so much bad luck trying to get superglue to ONLY glue down a lifted trace, and not whatever tool I'm trying to hold it down with, to the trace, causing more problems, I try to save it for last, and just let it flow under (gel version, sometimes is better) and set once soldering is done, and electrical circuit function has been verified. It's not something I'd advise anybody to first try on a TiVo board with SMD.

    That silicone adhesive has a lot of flex to it. I wouldn't trust it, unless the whole cap was nearly encapsulated, and a good bead went over the traces. I'd worry that once all siliconed, another bump could still break the circuit, and it wouldn't even be visible. Superglue is easier to remove with acetone (nail polish remover), than silicone, which is resistant to pretty much anything once set, and tends to leave a film that won't allow solder to adhere (and it's heat-resistant, so burning it away isn't going to work, either).

    Honestly, the best choices come down to the damage that exists, and further damage caused while repairing, and just how well one feels something need be secured. At least acetone can dissolve, even hard-set, old, superglue. Good luck getting the silicone off, once set (even unset it's a PITA).

    I usually don't speak of using superglue for anything electrical.

    I really should crack open, and take pictures of, the TV I fixed a shattered main PCB on, using nothing but an exacto knife, copper wire (some copper-clad RG 59/6 core, for strength, and some stranded/braid for flex), solder, and superglue, (regular, and gel). I expected a catastrophic result, or nothing. Plugged it in, once all set, and working TV (even the built-in DVD player).

    How did that board get shattered? Somebody violently uninstalled it without unplugging it, and the internal power cord anchor was inadequate. Then they literally dropped it at the curb. I like challenges, even if I really didn't need an old CRT TV for anything... 3+ years later, it's still the garage TV/DVD.

    Of course, it wasn't a multi-layer PCB with hidden traces, between layers, but was great practice, and very rewarding to see it work after all that. :)
     
  13. dmartin5454

    dmartin5454 New Member

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    Feb 20, 2009
    Ft. Collins, CO
    Unitron & Nooneuknow, I really appreciate the great advice you guys are giving. I'm thinking this is beyond my abilities, and the odds of me making things worse is definitely non-zero. I might try to live with it for a few months, and then see if I can fit a new Roamio in my budget, and begin using the HD as overflow storage and digital connection for my cable on my second TV.
    Dave M.
     
  14. nooneuknow

    nooneuknow TiVo User Since 2007

    3,554
    0
    Feb 5, 2011
    Cox Cable...
    It's what I'm here for. Getting thanks/thanked is always a bonus. Some only see what they want to see, and that's often some agenda I don't even have.

    That sounds like a solid plan to me: Get something new(er), get it in place/working, then attempt to get more life out of what you have now.

    Good luck, and best wishes. If you get to where you are looking at, feel free to send a PM, so I/we know you are ready to proceed with attempting to make repairs.
     

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