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TiVo HDTV Series 3 has crashed/rebooted several times in one day

Discussion in 'TiVo Series3 HDTV DVRs' started by Mike Richardson, Sep 24, 2012.

  1. Jan 4, 2013 #101 of 116
    unitron

    unitron Active Member

    16,387
    2
    Apr 28, 2006
    semi-coastal NC
    They're probably 3300uF (microFarad) and rated at 10 Volts, and are in parallel across the +5V output.

    Go read the thread loubob57 linked to, and any threads linked to in that thread.

    Somewhere you should come across what I say about Low ESR, high temp, and don't look for them at Radio Shack.

    Are you anywhere near Raleigh, NC? I gotta guy up there sells 'em.

    If you replace both of them and the ones on the +12 V output as well, that's maybe $10 in parts total, not counting shipping if you mail order.

    As un-soldering and resoldering jobs go, it's fairly simple, but you'll need a heavy enough wattage iron or gun to overcome the heat dissipating properties of the big areas of copper on the bottom of the board to which the capacitors leads are soldered.

    In addition to the obvious screws (for which you'll need the same #10 Torx bit you need to open the case) on the inside of the chassis holding the power supply board down, there's a small dark screw that goes into the plasic of the AC input socket from the outside, just above the actual pins, and you'll need a slightly smaller Torx bit for it, maybe a #8 or #9.
     
  2. Jan 4, 2013 #102 of 116
    Golfsferr

    Golfsferr New Member

    27
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    Nov 25, 2012
    Thanks so much for your time. Now I just have
    To look up what you guys suggested and then pull it off. I new
    Power supply is kind of expensive.
     
  3. Jan 4, 2013 #103 of 116
    unitron

    unitron Active Member

    16,387
    2
    Apr 28, 2006
    semi-coastal NC
    Which is why it's better to repair it yourself or maybe even get it repaired locally if there's a good shop nearby.

    What part of the country are you in?
     
  4. Jan 4, 2013 #104 of 116
    Golfsferr

    Golfsferr New Member

    27
    0
    Nov 25, 2012
    If I pull one out will it tell me exactly which one it is? Or do
    I have to interpret based on the dimensions
    Given in the links?
     
  5. Jan 4, 2013 #105 of 116
    Golfsferr

    Golfsferr New Member

    27
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    Nov 25, 2012
    I'm in the Detroit area. What kind of shop are you talking about, tv repair?
    The soldering sounds a little more involved that I'm used to.
     
  6. Jan 4, 2013 #106 of 116
    Golfsferr

    Golfsferr New Member

    27
    0
    Nov 25, 2012
    You mention that I should just replace the ones
    On the 12 v side as well but when I went to the
    Links I didn't see anything referring to 12 v. However
    If I just order all the ones listed in the links, will I get
    All I need if I choose to replace all as was also suggested?
    Thanks
     
  7. Jan 4, 2013 #107 of 116
    unitron

    unitron Active Member

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

    Yes, a TV repair shop, perhaps preferably a "mom and pop" type operation where there's not a lot of corporate structure to get in the way of dealing directly with whoever is going to actually do the work.

    I don't know what labor rates run up there, but if you find someone you can directly work a deal with, maybe you can take the board out of the TiVo and just carry it in and get the caps swapped out for good ones real quick and comparatively cheaply.

    Ask him (or who knows, maybe her) if the two bulging ones aren't indeed paralleled across the 5V out and there should be one or two on the 12 V line as well and you might as well replace them now and not have to worry about them later.

    Those (the ones on the 5 and 12 outs) are the ones most famous for failing.

    Or maybe a stereo repair place, but one that actually does board level repairs, not just some car stereo installer.

    Exactly what kind of soldering have you done, with what kind of equipment?

    Figuring out which capacitors are part of which circuit when you don't have any service literature is done by knowing enough about electronics to start with the yellow wires (12 V) or the red wires (5 V) and work your way backwards looking at the various copper traces, or "lands" on the bottom of the power supply's circuit board.

    If you're looking for a shop to do it instead of yourself, tell them you've got a switching power supply with capacitor plague and you were told to make sure they knew the importance of using 105 degree Low ESR replacements by someone who knows more about these things than you do.

    If they give any indication that they think any old replacement capacitor will do, you're in the wrong place.
     
  8. Jan 4, 2013 #108 of 116
    Golfsferr

    Golfsferr New Member

    27
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    Nov 25, 2012
    You obviously know what you're doing, how much
    Would you charge if I shipped to you. Assuming your answer
    Will be, " if I do it for you I'd have to do it for the
    Dozens of others too", I still appreciate your time
    And knowledge. All the ones listed in those links, are they
    All the ones I need?
     
  9. Jan 4, 2013 #109 of 116
    unitron

    unitron Active Member

    16,387
    2
    Apr 28, 2006
    semi-coastal NC
    Knowing what I'm doing is not the same as being in a position to guarantee my work long distance.

    I suppose the post office could deliver just the power supply by itself for about $10-$15 each way, plus another $10 worth of caps, and we're getting near the cost of getting it done locally even if I donate my time.

    Let me check with the guy in Durham to see if he got the guy in Raleigh to fix his and how that worked out and maybe I'll have somebody I'll feel comfortable referring you to.
     
  10. Jan 6, 2013 #110 of 116
    Golfsferr

    Golfsferr New Member

    27
    0
    Nov 25, 2012
  11. Jan 6, 2013 #111 of 116
    Golfsferr

    Golfsferr New Member

    27
    0
    Nov 25, 2012
    I found a great priced power supply on eBay and it appears to be in great shape. So I took the plunge. Thanks for your help though.
     
  12. George Cifranci

    George Cifranci Viva La Tivo!

    680
    0
    Jan 30, 2003
    Columbus,...
    Add me to the list I guess. :-(

    Lately I will be watching a recorded show and it will totally freeze up. After a short time the TiVo will reboot. One time I rewatched that same recorded show and it froze up at the same place. I suspect it might be one of my 2 hard drives. I guess I will have to open it up and check the PSU as well. I have an original Series 3 (with the OLED display) that I bought in late Dec 2006 and when I got it I immediately replaced the 250GB drive that came with the S3 with a 750GB Seagate DB35 that I had bought from Weaknees (in fact the UPS guy delivered them both at the same time which was nice). Later I added an external drive with another 750GB Seagate DB35. I might just let it go for now and see if it keeps happening. Those drives have been running pretty much non-stop for 6 years now. It would be nice to replace them with a single 2TB. Is there a way to move everything from my two 750GB drives to a single 2TB drive?
     
  13. dlfl

    dlfl Cranky old novice

    6,997
    18
    Jul 6, 2006
    Near...
    Since you're in Columbus, OH, I'm betting you are on TWC, right? Which means all your recordings other than cable copies of local broadcast stations are copy protected and cannot TTG to your PC, which is what you would have to do to save them. Even if possible it's a time-consuming process that takes a lot of drive space on your PC. With a good (hard-wired) network your S3 will transfer at a little more than 1 MB/sec and each file has to transfer twice (to/from your PC). So you can do the math. ;) Of course if one of your current drives is failing, transfers will either fail or take longer as the drive has to retry the reads.
     
  14. Feb 4, 2013 #114 of 116
    irepoder

    irepoder New Member

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    0
    Feb 24, 2010
    I'll buy your old power supply. Drop me a note.
     
  15. Mike Richardson

    Mike Richardson Member

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    Sep 24, 2012
    I'm a bit late replying, but it really came down to some kind of gremlins in my software. The fresh image from unitron seemed to clear up all of the problems. I have not had any problems with the TiVo since then.
     
  16. Apr 5, 2015 #116 of 116
    Mike Richardson

    Mike Richardson Member

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    0
    Sep 24, 2012
    Well, I just played an old recording on my TiVo, and it's got some glitches. It's a Comcast cable recording from a couple of years ago - so it should be perfect. Instead, it's acting more like a poor signal OTA recording.

    Would this indicate some problems with the hard drive?
     

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