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Tivo Series 3 - Bad capacitors in power supply

Discussion in 'TiVo Help Center' started by johnsom, Jul 25, 2011.

  1. Jun 4, 2014 #261 of 532
    Agent86

    Agent86 Registered Lurker

    574
    1
    Jan 18, 2002
    After successfully rescuing my Series3 with a PSU cap replacement by gleaming information from a handful of places and using Blahman's original Mouser project to order the parts, I was inspired to try to consolidate some of this down for brave souls of the future.

    I've gone ahead and created some Mouser projects for the S3 and HD PSUs based on the information available in this thread. I've also linked to diagrams in this thread that show what goes where.

    Hopefully this little collection of Mouser projects and diagrams will make things a bit easier for the next guy walking down this path.

    Thanks to Blahman for the original Mouser project.
    Thanks to wobly and HerronScott for the part lists.
    Thanks to CraigK for the capacitor location diagrams.
    Thanks to Unitron for helping everyone with everything. :)

    Series3 TCD 648 PSU Mouser Project

    TiVo HD TCD 652 3Y Power Technology PSU Mouser Project
    TiVo HD TCD 652 3Y Power Technology PSU Capacitor Locations

    TiVo HD TCD 652 AcBel PSU Mouser Project
    TiVo HD TCD 652 AcBel Capacitor Locations
     
  2. Jun 5, 2014 #262 of 532
    videojanitor

    videojanitor New Member

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    Dec 21, 2001
    Hey, thanks for putting all that information in one convenient post! Being able to click on that Mouser link and have the order info already filled out just saved me a ton of time. Awesome! :up:
     
  3. minnellac

    minnellac New Member

    1
    0
    Jun 1, 2014
    Nooneuknow, any chance you still have one of these? I tried to repair mine with info from this thread, but it went from not working to not working and buzzing loudly. Basically, I'm willing to give up on this unit and look at the Roamio, but $35 is certainly worth it to find out if my lifetime unit can still be used.

    Thanks (sorry, I can't PM or email yet)
    Chris

     
  4. squint

    squint New Member

    846
    0
    Jun 15, 2008
    Did you purchase the capacitors based on one of the parts lists posted on this forum? There really isn't a lot that can go wrong when replacing capacitors. However, there are large ground planes that can make it very tough to melt the solder. Maybe you have a bad solder joint somewhere?
     
  5. dlfl

    dlfl Cranky old novice

    6,996
    16
    Jul 6, 2006
    Near...
    The caps also have polarity. Getting that wrong is an easy mistake.
     
  6. videojanitor

    videojanitor New Member

    678
    0
    Dec 21, 2001
    Another success story here. I replaced all the caps tonight (well, except for the 1000uF, which is currently out-of-stock), and the supply is working like a champ. TiVo now boots up, and everything works as it should. Thanks for this thread!
     
  7. nooneuknow

    nooneuknow TiVo User Since 2007

    3,554
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    Feb 5, 2011
    Cox Cable...
    [message that was here removed - power supplies sold]
     
  8. squint

    squint New Member

    846
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    Jun 15, 2008
    [​IMG]

    This is why you don't buy replacement power supplies.
     
  9. nooneuknow

    nooneuknow TiVo User Since 2007

    3,554
    0
    Feb 5, 2011
    Cox Cable...
    I'd recommend updating your post to spell it out. C601 caught my eye, but others may not spot it.

    You also make it sound like buying replacements is a always bad thing. As long as they have been re-capped, there's nothing wrong with buying a replacement, if you are not up to doing it yourself.
     
  10. squint

    squint New Member

    846
    0
    Jun 15, 2008
    It looks like C501 is bulging. Other pictures in that auction also show it bulging.

    True, but when was the last time you saw a re-capped power supply for sale other than on this forum?
     
  11. timhbtr53

    timhbtr53 Grumpy Old Man

    307
    1
    Apr 24, 2014
    In the Deep...
    I'm sorry but this prices for a S3 power supply is just crazy. If you do not feel like you can replace the caps please send me a PM. I am in Baton Rouge, La. For just the shipping of the power supply and the caps from mouser "For all the caps it's about 10.00 bucks plus some shipping to get them here" I will replace your caps test it and send it back to you. I am not looking to get rich just help others out that can't do it themselves. If you think it worth 10 bucks great if not just make sure you pay the shipping back to you. The only thing I ask is please check your hard drive first. If it's good look at the caps on your power supply if they look like some of them have domed tops you have bad caps. If you have never had them replaced your going to have this problem. It's nothing TiVo did it was a line of junk caps that where used in everything. I have a radio telephone license, plus I am a ham radio oper. I have 2 weller soldering stations plus 2 Aoyue stations and a X-Tronic Model #5040-XTS Hot Air Rework Soldering Iron Station. So if you have a dead or dying power supply PM me. Thanks Tim.
     
  12. bleech2

    bleech2 New Member

    19
    0
    Mar 15, 2014
    Update: I opted not to mess with the power supply any further because I discovered that if I hit the "Live TV" button after the video goes out and then change the channel, the video returns without having to force a reset.
     
  13. dlfl

    dlfl Cranky old novice

    6,996
    16
    Jul 6, 2006
    Near...
    Have you checked the voltages -- this behavior isn't normal (unless your system always acted this way even before the PS went bad).
     
  14. timhbtr53

    timhbtr53 Grumpy Old Man

    307
    1
    Apr 24, 2014
    In the Deep...
    Did you do the cap job? If so did you replace all the caps or just the pop topped caps? It sounds like you have a cap that is on the edge and your voltage is noisy. What series is this TiVo? If you pull the power and your back up it does sound like you have some low voltage on you power supply. I am wiling to help you if over the phone that's fine. Let me know if you would like some help but don't give up just yet.
     
  15. squint

    squint New Member

    846
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    Jun 15, 2008
    bleech2's tale of woe begins on post #255:

    http://www.tivocommunity.com/tivo-vb/showthread.php?p=10107710#post10107710
     
  16. timhbtr53

    timhbtr53 Grumpy Old Man

    307
    1
    Apr 24, 2014
    In the Deep...
    I hate when that happens, As long as you take your time it's a very workable fix "Like you don't know that" lol. That is a strange problem it sounds like one of the caps is on the edge and making noise on one of the voltage lines. I hope he takes it out and looks it over one more time. I think he will find a cold solder joint or cancer on a cap. And yes there seems to be a lot of high price P/S on here. Have a great week buddy.
     
  17. CrashHD

    CrashHD I am the me.

    757
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    Nov 10, 2006
    MO, USA
    There's no "can" to it. They pop like a firecracker. I put one in polarity wrong tonight, and didn't catch it until it was plugged in and popped. I knew instantly what I had done. Everything was fastened down tight, all the cords were run back, and it was completely reinstalled in the entertainment center, which is odd, I'm normally pretty fussy about testing anything that can be tested while still in a state of partial disassembly.
     
  18. Gregor

    Gregor Active Member

    46,746
    14
    Feb 18, 2002
    Bump.

    I think I got a bulging capacitor on the power supply. How much bulging are we talking abou? The end is a bit convex while the others are concave...
     
  19. nooneuknow

    nooneuknow TiVo User Since 2007

    3,554
    0
    Feb 5, 2011
    Cox Cable...
    If it is convex at all, it's suspect. They start failing before they even get to that point (takes time for the pressure to build). If the center is any higher than the shrink sleeve that folds over the top edges, I'd call it doming, or "bulging" as they say in these threads. Probably a unitronistic dialect that stuck...
     
  20. Gregor

    Gregor Active Member

    46,746
    14
    Feb 18, 2002

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