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TiVo HD is Frozen Every Single Night

Discussion in 'TiVo Series3 HDTV DVRs' started by TaterTot24, May 8, 2014.

  1. TaterTot24

    TaterTot24 TiVo Addict!

    53
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    Aug 26, 2007
    Memphis, TN
    Well between work and having a newborn, I have had no free time to look at the power supply until now.

    I just opened it up and expected to see a couple of bulging capaictors, but I cannot spot a single one. And get this, I brought the TiVo up to work so I would actually get it done today but I forgot the power cable... So no testing the voltages.....
     
  2. TaterTot24

    TaterTot24 TiVo Addict!

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    Aug 26, 2007
    Memphis, TN
  3. jrtroo

    jrtroo User

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    Feb 4, 2008
    There are two different ones used in a THD. At one time I copied them into a separate file for when I needed to make an order, so I don't have the thread this came from, but Scott deserves the credt:

     
  4. TaterTot24

    TaterTot24 TiVo Addict!

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    Aug 26, 2007
    Memphis, TN
    Well I was able to use about 5 of the capacitors that I ordered, but the other ~5 I am going to still have to order from Digikey.

    Maybe one of the 5 I replaced was the culprit.... (I really doubt it though -- I think it is probably one of three of the 2200uF 16V caps)

    Also, just wanted to point out that there are actually 10 electrolytic capacitors on the AcBel power supply... the above list only list 6 of them... I am not sure why the other 4 are omitted...
     
  5. TaterTot24

    TaterTot24 TiVo Addict!

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    Aug 26, 2007
    Memphis, TN
    Here is a proper list of the caps for the ACBel power supply:

    Code:
    [B][U]Capacitance	Voltage		Location[/U][/B]
    470uF		200V		C4
    2200uF		16V		C14
    2200uF		16V		C17
    2200uF		16V		C27
    47uF		50V		C23
    47uF		50V		C29
    100uF		25V		C9
    1000uF		6.3V		C15
    470uF		16V		C20
    1000uF		16V		C31
    
    
     
  6. unitron

    unitron Active Member

    16,387
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    Apr 28, 2006
    semi-coastal NC
    The big one, rated at 200V, is left out because it doesn't have to work very hard at a high frequency like the medium sized ones near the heat sink(s), and probably isn't a low ESR 105 Degree C cap in the first place--it just filters 60Hz AC (which probably looks like 120Hz once it goes through the bridge rectifier, but that's still a very low frequency from a capacitor's point of view).

    I haven't actually dissected one of these supplies and hand drawn a schematic and figured out exactly what every part does, but the little ones not clustered near the heat sink(s) don't handle the heavy switched currents like the medium sized ones, so they aren't particularly stressed either, and are unlikely to fail prematurely.
     
  7. HerronScott

    HerronScott Active Member

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    Jan 1, 2002
    Staunton, VA
    Unitron covered it but the ones that I left out are unlikely to have issues based on user experiences (similar to the list for the S3 OLED).

    Scott
     
  8. TaterTot24

    TaterTot24 TiVo Addict!

    53
    0
    Aug 26, 2007
    Memphis, TN
    Well I went ahead and replaced all the capacitors just to make sure. When I had replaced the first 5 (the ones that just happened to be the same or close for the other brand power supply), I still had the TiVo lock up twice. So I know for sure that one of the caps that did not get replaced must have been the issue. Tonight was the first night since all the caps have been replaced and it has not been frozen.

    However, it just randomly restarted. It has done this quite often and I was just hoping that the freezing issue and the random reboot were related. Well I guess not. Weird thing is, it always restarts between midnight and 2am...
     
  9. unitron

    unitron Active Member

    16,387
    2
    Apr 28, 2006
    semi-coastal NC
    Do you have the TiVo plugged into a UPS?

    (helps eliminate blips on the power line as a possible cause)

    Try it without anything hooked to the TiVo's HDMI output for a few days, and see if eliminating the Spawn of Satan makes a difference.
     
  10. TaterTot24

    TaterTot24 TiVo Addict!

    53
    0
    Aug 26, 2007
    Memphis, TN
    No UPS, just plugged into a decent quality surge protector strip.

    Well it is not locking up so far. It has been less than 24 hours though. But it is still randomly restarting around the same time frame every night. I can do the HDMI like you suggested, but how will I know if it restarts?
     
  11. squint

    squint New Member

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    Jun 15, 2008
    People have mentioned that a reboot would cause a Tivo to lose the 30 second skip "hack" if you had set that up earlier so that's one way of knowing.
     
  12. ThAbtO

    ThAbtO TiVoholic by the bay

    6,720
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    Apr 6, 2000
    SF Bay Area
    Also the onscreen clock.
     
  13. ct1

    ct1 Well-Known Member

    4,605
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    Jun 27, 2003
    Maryland
    Since I ripped the DVD, my daughter has been playing Frozen on our TiVo HD every single night!
     
  14. TaterTot24

    TaterTot24 TiVo Addict!

    53
    0
    Aug 26, 2007
    Memphis, TN
    Well guess what...

    I came home tonight to a frozen TiVo. Well at least I got to practice my solder/desolder technique...

    So does anyone else have any suggestions??
     
  15. nooneuknow

    nooneuknow TiVo User Since 2007

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    Feb 5, 2011
    Cox Cable...
    http://www.tivocommunity.com/tivo-vb/showthread.php?t=517829

    http://www.tivocommunity.com/tivo-vb/showthread.php?t=517733

    Check out these threads and see if it may be a case of database corruption, which may be the result of bad data being received from the scheduled TiVo Service connections.
     
  16. squint

    squint New Member

    846
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    Jun 15, 2008
    I've bought and repaired 3 Tivo HDs and one Series 3. The hard drives tested fine in all 4. Two HDs simply needed to be re-imaged followed by a clear and delete everything. The Series 3 needed new power supply capacitors and a re-imaging. The final HD unit is truly broken and is a work in progress.

    So, my vote is to re-image the drive. You can do this with a different drive so that if it doesn't improve things you haven't deleted all your shows for nothing.
     
  17. TaterTot24

    TaterTot24 TiVo Addict!

    53
    0
    Aug 26, 2007
    Memphis, TN
    Well my TiVo has been frozen almost every single night since I originally posted this and I have yet to solve this problem...

    With a new baby and traveling a lot for work, I just have not had a chance to mess with it. My wife is getting tired or resetting the TiVo and it only getting half (or less) of her favorite shows, so looks like I need to start messing with this thing again...

    Just to summarize: New Hard Drive & All New Caps. Randomly Restarts & Freezes/Locks Up while watching TV and is frozen/locked up every night when I get home.

    This is the first thing I am going to try, but I don't really have much hope since this is a brand new drive that was just re-image back when these problems first started (I did the option where none of the shows/content was carried over)...
     
  18. shwru980r

    shwru980r Active Member

    1,893
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    Jun 22, 2008
    Hook up the hard drive to your computer and run the manufacturers long test diagnostic on the drive.
     
  19. kdc914

    kdc914 New Member

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    Jul 13, 2007
    I have a TivoHD that had the same problem. Note my use of past tense. Mine is connected to Cox Cable, using one dual-thread cable card and a tuning adapter.

    Mine did the overnight freeze more or less randomly. Over the course of about a month, I figured out that when I left it on higher channels or especially any channels that required the Cox tuning adapter, it would usually lock up overnight. Not tightly, but lock up. By that I mean that I could use the channel up/down button to "unfreeze" it. I did miss a few recordings when it was frozen.

    I experimented with leaving it on low number channels that I am certain do not use the tuning adapter - i.e. the local ones. Haven't had a lockup since. Coincidence? Perhaps, but it worked for me.
     
  20. kdc914

    kdc914 New Member

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    Jul 13, 2007
    My TivoHD has been rebooting a LOT lately (apparently becoming a widespread problem when reaching the end of a recorded program). The only time I have ever lost the 30-second skip is when I was too slow changing batteries in the remote or when replacing the hard drive (which I have done twice in that unit's lifespan).
     

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