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My suspicions were correct and I had a power supply starting to fail in one of my 2 S3 OLED (faint wavy lines in video). It finally decided to go into a reboot cycle on Thursday. I opened it up yesterday and found the2 2200uF 6.3V caps (C401/C402) bulging. To verify the power supply was the issue, I swapped in the power supply from my other S3 and it resolved the boot issue and the wavy lines. Interestingly, that one also had 1 bulging capacitor which was the 2200uF 25V cap (C701).

I'm putting together my order today and had planned on replacing all of the 2200uF and 3300uF caps in both power supplies (8 each) as I've seen other cases here of many of those having issues, but thought I would check here to see if there were any opinions on replacing the remaining capacitors (7 each) especially since most if not all seem to have been made by Capxcon.

Scott
 

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It seems, so far, to be just the caps which have one lead grounded and the other lead connected to either the 12V or 5V output which have developed problems.

As for replacing caps because of what brand they are, CapXon is widely known as CrapXon, but the Series 2 Dual Tuner power supply uses them and I haven't heard of any of that particular model having problems so far, so brand alone is only a possible indicator.

Also, counterfeit versions of reputable brands are being produced.
I'll ignore the rest since you were replying to 2 posts and the rest appeared to be directed to Dan. :)

I think that I'll ignore the smaller higher voltage caps and the very large 200V one near the inputs and only replace the ones I'd already indicated except I'll add the 2 470uF and the 1 1000uF ones to to the list.

Regarding counterfeits, you would hope that 3Y would be purchasing directly from the vendor.

Scott
 

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I did finally get the parts and repaired my original S3 OLED power supply which had bulging capacitors for the C401/C402 (2200uF 6.3V). Thought I would post the parts list here for anyone else looking to do this.

TiVo S3 OLED capacitor list:
3Y power supply: CP-1104 R2
TiVo PN: SPWR-00008-000 Rev A3

I went ahead and replaced 11 of the 15 capacitors to hopefully preemptively catch any of the other primary ones that might fail. The ones that I replaced fall into 3 main groups on the power supply board so that's how I've listed them starting with the ones that were bulging on mine.

C401 2200uF 6.3V Panasonic EEU-FR0J222 Digikey P14365-ND $0.81 (Alternate: P15308CT-ND?)
C402 2200uF 6.3V Panasonic EEU-FR0J222 Digikey P14365-ND $0.81 (Alternate: P15308CT-ND?)

C601 2200uF 16V Panasonic EEU-FR1C222 Digikey P14402-ND $1.01
C701 2200uF 25V Panasonic EEU-FR1E222L Digikey P14428-ND $1.43
C501 3300uF 10V Panasonic EEU-FR1A332 Digikey P14383-ND $1.01
C502 3300uF 10V Panasonic EEU-FR1A332 Digikey P14383-ND $1.01
C504 3300uF 10V Panasonic EEU-FR1A332 Digikey P14383-ND $1.01

C503 3300uF 10V Panasonic EEU-FR1A332 Digikey P14383-ND $1.01
C603 470uF 16V Panasonic EEU-FR1C471 Digikey P14394-ND $0.49 (Alternate: P15342CT-ND?)
C702 470uF 16V Panasonic EEU-FR1C471 Digikey P14394-ND $0.49 (Alternate: P15342CT-ND?)
C403 1000uF 6.3V Panasonic EEU-FM0J102 Digikey P12340-ND $0.51

All are rated at [email protected] except for the last 3 which are [email protected] and [email protected] Cost was $9.59 in parts plus $0.48 tax and $4.91 S&H for a total of $14.98.

I actually ordered enough caps to repair my 2nd S3 OLED as well since it has a few bulging 3300uF caps so the S&H was for both sets although the way it was boxed and shipped, I'm not sure it would have been any cheaper for just 1 set of caps.

I hope this helps someone else who might have an S3 OLED with a bad caps!

Scott
 

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Thanks Scott. I just happened to be doing this same thing right now and figured I'd search and see if anyone already did, though I was already in process so I did it more for sanity check. Here's some updates for you: You listed 401 twice - the one next to it is 402. and 50? is 503. And where you listed 503 is really 504. At least this is how it is on my Rev A2 board.
Thanks for the feedback. I've fixed the C402 as that was an obvious cut and paste mistake. I was going by the numbers that I had jotted on an index cards for the rest and I just checked my spreadsheet and found that I had C501, C503 and C504 listed as being together and had not updated C50? there either (I think it had the white "glue" over it on the board).

I'll fix those when I repair my other TiVo which has the same rev board.

Scott
 

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CrashHD,

Glad it helped! I saw something similar trying to measure the voltage without load both in swapping in the good power supply from my 2nd S3 and after I had replaced the caps. I connected input power without connecting the output connections just to make sure I hadn't made any mistakes in soldering in the new caps and when nothing smoked, hooked everything up correctly.

Scott
 

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Bryan,

Glad it helped. I had been looking for this information earlier this year myself when I suspected my power supply was failing (faint wavy lines through video) so thought it might be useful for others.

We need someone to post the same list for the HD power supply.

Scott
 

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On original inspection I thought all my caps looked okay, but after the 250GB drive didn't work and reading through this thread I took a closer look and the tops of C401 and C402 are slightly domed but not leaking. Guess I'll be replacing some caps:rolleyes:
Those were the 2 that were bulging slightly on 1 of my S3 OLED's and you are correct that they do not have to be leaking to be bad and cause power supply issues.

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So I'm fairly sure this is affecting me as well. My Series3 (2006, OLED display) went into a reboot loop this morning - it would take the kickstart codes but not actually start the kickstart routines. I unplugged it for the day. This evening, I just get ticking from the power supply when plugged in, and the fan doesn't power on. (I have the case off, so I'm sure of where the ticking is from). By feel, 3 of my capacitors have a bulged top - C401, C402(? I can't see the label, but it's immediately adjacent to C401), and C701. From the sounds of it, I need to get a Torx T8 (I have a 10, and several larger sizes, but not an 8), and I could probably stand a beefier soldering iron if I wanted to try replacing the caps myself - for that matter, where are people buying caps?

Keith
Keith,

Check out my post 61 in this thread. I got mine at Digikey.

Scott
 

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The cap is number C31. Model ST7002-BW0G by AC Bel.
That appears to match what's in my TiVo HD. Note that I've only replaced the capacitors in one of my S3 OLED's but while I was upgrading the hard drive in our TiVo HD, I wrote down the capacitor information for future reference.

TiVo S3 HD capacitor list:
Acbel Polytech: ST7002-BW0G
TiVo PN: SPWR-00011-000 Rev B0

C14 2200uF 16V Panasonic EEU-FR1C222 P14402-ND $1.01
C27 2200uF 16V Panasonic EEU-FR1C222 P14402-ND $1.01
C17 2200uF 16V Panasonic EEU-FR1C222 P14402-ND $1.01
C31 1000uF 16V Panasonic EEU-FR1C102L P14397-ND $0.71

C15 1000uF 6.3V Panasonic EEU-FM0J102 P12340-ND $0.51
C20 470uF 16V Panasonic EEU-FR1C471 P14383-ND $0.49 (Alternate: P15342CT-ND?)

Can you compare these to what are in yours? It would be good to get someone that has replaced them in an HD to verify as well.

Scott
 

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Okay, that's the one made by the same outfit that made the 648 supply.

I've got one sitting out on the bench at the moment, so I'll check some old posts to see if anyone's already compiled a list for that model and if not I'll sit down with the bright light and magnifier and figure out which ones are on the +5V and +12V outputs and post that ('cause those are the ones likeliest to be bad if any are), but it might take a day or three.
That would be great since then we'd have all 3 of the S3 power supplies documented.

Scott
 

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Do you happen to remember, and can you provide the link, to where the 652 cap list that's already been posted is?

If not, don't worry about it, I'll find it myself.
I posted a list for the Acbel S3 HD power supply 2 pages back in this thread.

http://www.tivocommunity.com/tivo-vb/showthread.php?p=9518796#post9518796

That was just based on the visual inspection of the S3 HD that I bought my son. I've not actually replaced the capacitors in that one so was hoping someone would add some confirmation at some point.

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That looks similar to what we saw for a while before the power supply finally died altogether on our S3 OLED. Ours were pretty faint so didn't really think too much about it until it died. Once I replaced the caps, lines were gone as well.

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So my new caps arrived in the mail and they are definitely not the ones I thought I needed. Too tall and skinny. Anyway, I am replacing a Capxon 1000uf 10v 105c C729 vent. Can anyone point me to the right replacement cap on digikey?
If I recall correctly, you had the power supply that we didn't have a list for yet and unitron was going to create one (ie the second model used in the S3 HD TiVo's).

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Yeah it is 10v. I was confused after reading the cap lists for the other power supplies for the S3 that didn't have any 100uf 10v caps, only 16v. Lead width is 5mm. Diameter is around 8. Height is 15.5, probably 16.5 seated. I picked up two of these from digikey: P15317CT-ND
That looks like it would match what you need based on Digikey's information. The EEU-FR series specifications include Ultra-low ESR.

So what did you order the first time?

Scott
 

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P10224-nd
That's an EEU-FC series which is low impedence/ESR but not at as low as the FM/FR series. It probably would have worked although the lead spacing is 3.5mm instead of 5mm so it would sit higher in addition to the 20mm taller height to begin with (would depend on whether there's anything limiting the height like a heatsink).

Scott
 
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