faulty power supply?

[yanz]

Re: faulty power supply?

You are lucky if you can find 2200uF 16v 10mm Rubycon ZL caps. I have several ZL here with the said value (2200uF 16v) but only in 12.5mm. Maybe the 10mm ones are new batch in production and my datasheet collection need to be upgraded

[999999999]

Re: faulty power supply?

I don't see any ZL series in 2200uF/16V/10mm diameter. Even in 12.5mm diameter it's a 25mm tall part, I doubt it's a genuine Rubycon cap if that's what it says on the label.

The (current?) ZL datasheet,
https://cdn.badcaps-static.com/pdfs/...d3dded1822.pdf

[davmax]

Re: faulty power supply?

I agree. I have these 16V ZL caps installed and they are 12.5mm. Verify the product is 10mm. The offer still stands.

[stevo1210]

Re: faulty power supply?

I went back to the Farnell website and had a look today and it is in fact 12.5mm in diameter.

[linuxguru]

Re: faulty power supply?

Any good 2200/16 (NCC, Rubycon, Nichicon, ...) tends to be 12.5mm. The closest 10mm I've seen is the Panasonic FJ 1800/16, which I don't even have enough field data to confirm that it's OK for a PSU - it looks much too small. Another alternative is the NCC LXZ 1500/16.

I'd recommend using the NCC LXJ or LXF 12.5mm, if necessary with a few mm stand-off to allow clearance for the wires and resistor(s). As long as there's no other caps right next to it, it should be OK.

[davmax]

Re: faulty power supply?

The Samxon 2200 16V 10mm GD series is suitable for your need. Can be simply sent in mail.
regards

[davmax]

Re: faulty power supply?

The Samxon GC 2200uF 12.5 mm is 8-9 mohm and the GD 10mm is 11 mohm. The 11 mohm is not a problem in the power supply position.

[stevo1210]

Re: faulty power supply?

I got my 2200uf 16V Samxon cap from Davmax two days ago so I can continue recapping it on the weekend.
For the positions where the two 1000uf 10V bulging Saturn caps were, will it be safe if I used 1000uf 6.3V Sanyo WG caps??

Thanks.

[Newbie2]

Re: faulty power supply?

I got my 2200uf 16V Samxon cap from Davmax two days ago so I can continue recapping it on the weekend.
For the positions where the two 1000uf 10V bulging Saturn caps were, will it be safe if I used 1000uf 6.3V Sanyo WG caps??

Thanks.

Yes it would be. 10V caps are usually on the 3.3v or 5v rail, so 6.3V caps would be fine.

I used Nichicon 1000uf 6.3V HE series caps to replace all the HERMEI or Saturn-brand 1000uf 10V caps in my L&C power supply, and I did not have a failure or problem yet.

My recapped and refanned L&C PSU is not making any weird noises, and the voltages on the +12V and +5V read normal. Solid 5.14V for +5V rail, and flucuating between 11.79V to 11.83V on the +12V rail. The +12V rail was always like that on my L&C PSU.

[stevo1210]

Re: faulty power supply?

Can I use Low ESR Hitano brand caps in this PSU?? I've used Hiatno EXR series caps in motherboards with no issues.
They aren't ultra low ESR, but I have a bunch of them here and they are all 1000uf 10V caps and fit perfectly into some positions.

[Newbie2]

Re: faulty power supply?

Can I use Low ESR Hitano brand caps in this PSU?? I've used Hiatno EXR series caps in motherboards with no issues.
They aren't ultra low ESR, but I have a bunch of them here and they are all 1000uf 10V caps and fit perfectly into some positions.

Low ESR caps will work fine in power supplies. It doesn't need to be ultra low ESR. I even seen standard general purpose caps in some power supplies.

Those Hitano caps should work fine.

[stevo1210]

Re: faulty power supply?

The remaining caps that I ordered last week came today.
I bought Sanyo WG 1000uf 6.3v caps for the +5VSB circuit. I also bought some Panasonic FJ 2200uf 6.3V caps to replace the Su'scon 2200uf 10V caps in the rear section of the PSU.
I hope everything works out in the end....

[stevo1210]

Re: faulty power supply?

I have SUCCESS today!!

I recapped the whole PSU a few days ago and today I finally plugged it in and started it up.
I stood behind a door with the PSU on the patio.... about 5 metres away from me, this was just in case I did something wrong and made it fail catastrophically.

I also connected a fan and CD-ROM drive to the PSU to give it some load on the 12V and 5V rails.

As soon as I flipped the switch on the wall, I saw the LED lights on the fan and the CD-ROM drive flash its busy/load light.... I was very relieved and also happy that I got something working again.

I measured the 12V, 5V, 5V SB and 3.3V rails and everything seems stable. I had a fan and CD drive connected in the process to give the PSU some load to get accurate voltage readings.

The new Sunon fan that I connected to it is a bit noisy, but I guess it's better than the old Rulian Science one that the DEER PSU had before....

Here is the complete list of caps that I used:

* 2x Panasonic FJ 2200uf 6.3V caps (replacement for Su'scon 2200uf 10V)
* 2x Sanyo WG 1000 uf 6.3V caps (replacement for "Saturn" brand 1000uf 10V.... this was for the +5V SB line)
* 2x Hitano 1000uf 10V caps (replacement for Koshin brand 1000uf 10V)
* 1x JPCE-TUR 470uf 16v cap (replacement for "Saturn" brand 470uf 16V)
* 1x Samxon GD(M) 2200uf 16V cap (replacement for Canicon 2200uf 16V)

I didn't replace any of the primary caps because I don't have any around here. I will recap them when I buy some replacements.
I am going to use the PSU in a Pentium III system, so I haven't decided to replace any of the rectifiers yet.

I would also like to thank Davmax for his contribution of a Samxon GD(M) 2200uf 16V cap for my PSU recapping project. Thank you very much Davmax!!.

I will post some pics of the newly recapped DEER PSU soon.

Thanks.

[stevo1210]

Re: faulty power supply?

I recapped another DEER PSU about two days ago. I only recapped the 3.3V, 5V SB and 5V lines because I don't have any 16V caps for the 12V line available. I used Sanyo WG 200uf 6.3V caps for the 5V SB line, Hitano 1000uf 10V caps for the 3.3V line (Not sure if it's 3.3V though) and Panasonic FJ 2200uf 6.3V caps for the 5V line (Not sure if it's the 5V line).

I also replaced the exhaust fan with a Sunon fan. The "Saturn" logo brand fan became the intake fan for the PSU. Now it's a dual fan PSU.
It's currently powering a Pentium III 500MHz PC with an Aopen AX6BC motherboard. No issues so far with the PSU.

I have another question. I heard that in PSUs there's something called "the cap of death" and that it MUST be replaced, which cap is that??

Thanks.

[Kaine]

Re: faulty power supply?

glad to hear you've had more success than me. I'm trying to troubleshoot a psu that i recapped and replaced a diode in that shows no life whatsoever (Truepower 2.0 thread)

[gonzo0815]

Re: faulty power supply?

The cap of death is the little one which is fed by some windings from one of the transformers.

Usually it is near the TL4xx chip, as it provides the supply for it. In most cases the values are between 10uF to 100uf 25 -50v.
Just chekout a search here, you will find numerous pic`s & explanations.

[linuxguru]

Re: faulty power supply?

Actually, depending on the topology, there may be two or more caps of death, all fed from the auxiliary flyback transformer:

1) The most critical one is on the primary side, and usually ranges in value from 22uF/35v to 100uF/63v. This plays a role (along with other primary side components) in regulating voltages on all the secondary windings of the auxiliary flyback converter. As this cap fails, the secondary voltages will progressively increase until further capacitor failures and/or PWM controller failures occur.

2) One or more caps on the secondary for +5Vsb, and:

3) one or more on the secondary for filtering the supply rail for the controller IC and related circuitry. This needed for normal operation of the controller. In my experience, this cap does not fail until after the failure of the primary side cap and the failure of the cap(s) on +5Vsb (1 and 2 above).

It is usually sufficient to replace only the primary side cap and the cap(s) on +5Vsb, unless there is a visible failure of 3). A low ESR, non-aqueous, long-life cap is indicated here - I recommend NCC LX*, Panasonic FC or Nichicon PW here.

[gonzo0815]

Re: faulty power supply?

Rubycon YXF would probably be a lifetime fix for this application and thus the series i would recommend for this.
But probably any of the long endurance ones would probably be fine.