Antec TruePower 2.0 TPII-550

[Wrog]

Re: Antec TruePower 2.0 TPII-550

Excellent, thanks guys. Looks like the SMQ series is only 85C and costs $10 apiece... Since there does appear to be room for a 50mm tall cap, I will give the KMQ series a shot. Going through Big Pope isn't a bad idea except he doesn't seem to carry some of the others that I need. That, and I'm already splitting the order between Badcaps and Digikey.

One thing I noticed is they are the "snap-in" variety... will the leads be long enough to solder in (assuming the lead pitch is the same), or will I have to rig up something? I've never dealt with this type before.

[Per Hansson]

Re: Antec TruePower 2.0 TPII-550

You could ask Big Pope what he charges for Samxon caps
Maybe you can cut a better deal that way...

For example: Samxon EP 1000 uF 200 V 25 mm 45 mm
http://www.capsmod.net/caps/


EDIT; Haha, would you look at that
This is thread #116000 and my post is #post116000
What is the chance of that?
Must go buy myself a lotto ticket

[Toasty]

Re: Antec TruePower 2.0 TPII-550

Either series is acceptable. Both decent with SMQ having the higher ripple rating.

Also Panasonic's HB or CDE's (Cornell-Dubilier) SLP series. Ive used both with no trouble. IIRC, (you should double-check this) you can fit up to 50mm tall. Watch that diameter as you are at boards edge.

You can go down to 1,000uF and/or go up in voltage (220v or 250v) to get a good fit, if need be based on who has which one(s) in stock.

[Wrog]

Re: Antec TruePower 2.0 TPII-550

Thanks everyone for the great advice. I'm planning on replacing the whole set (all 15) but now it seems the two main filter caps also need to be replaced as well. I've checked and it does seem like there is bulging under the top cover on both. The markings on these two are:

Fuhjyyu 1200uF 200V -NEG- LP, dimensions are 25mm diameter and about 45mm tall.

Can someone please suggest a replacement for these? I filtered down to Panasonic TS-HC and UCC KMQ/SMQ but I'm unsure which would be the most suitable. Thanks!

P.S. Ouch -- those two large caps are $5 apiece! Considering I have two identical units that I will be recapping, it has me considering just buying a couple of new supplies...

[goodpsusearch]

Re: Antec TruePower 2.0 TPII-550

From the main board. Leave the switch and socket alone. Takes 2 seconds to resolder to board when you're done.

Goodpsusearch is correct. Do a ~complete~ cap job on that PSU. The Fuhjyyu mains are also to be suspected. Make sure the -real- top of the cap is not bulged. Push down on those plastic discs on top to be sure. The upper one looks like it is up/domed.

And sometimes the main caps drain without bulging.

There is also possibility that their label capacitance was not true from the beginning. I have seen that happen at crappy caps as Fuhjyyu, YC, etc.

[Per Hansson]

Re: Antec TruePower 2.0 TPII-550

Yup, I would also be sure to replace the small caps, those a very important
The two lower ones in the pic are for the 5VSB, might aswell get the others while you are at it...

[Toasty]

Re: Antec TruePower 2.0 TPII-550

From the main board. Leave the switch and socket alone. Takes 2 seconds to resolder to board when you're done.

Goodpsusearch is correct. Do a ~complete~ cap job on that PSU. The Fuhjyyu mains are also to be suspected. Make sure the -real- top of the cap is not bulged. Push down on those plastic discs on top to be sure. The upper one looks like it is up/domed.

[goodpsusearch]

Re: Antec TruePower 2.0 TPII-550

It's a matter of taste. I try not to unsolder the ac wires but sometimes it's inevitable cause they are really short.

Hopefully many psus have a connector on the board.


Maybe you should consider replacing also the small caps at that psu. I have an antec true power 2.0 380Watt that I fully recaped several months ago. I measured all the original caps with an esr/capacity meter and found out that 2 of the small caps (those that are near the 5vsb transformer) were completely fried, even though they didn't bulge.

[Wrog]

Re: Antec TruePower 2.0 TPII-550

Thanks guys, I appreciate it! Attached is a pic of the insides for reference. The three bad caps (one leaking, two domed) are near the bottom of the left heatsink.

I'm having difficulty getting the board out because the lead lengths are pretty short and there's not much room to work... do people typically desolder the leads at the AC plug connection or the other end of the leads on the bottom of the PCB? Thanks!

[Per Hansson]

Re: Antec TruePower 2.0 TPII-550

370forlife; Ahh yes, brainfart

[370forlife]

Re: Antec TruePower 2.0 TPII-550

The primary caps actually hold a DC voltage. You can check for voltage leftover by checking with a multimeter across the DC legs of the bridge rectifier (the two outer legs) but usually they discharge within minutes.

[Per Hansson]

Re: Antec TruePower 2.0 TPII-550

Yea, replace all Fuhijju caps
Also don't neglect the caps used for the 5VSB circuit

These will be between the two heatsinks, small caps rated around 50v and 10>100uF
The two big bulk caps are usually fine, in most cases they wont need to be replaced
As for safety these caps do store AC voltage, so the peak RMS voltage can be around 300v
So of course you need to be careful, also the heatsink these caps are close to are usually live at the same voltage...

[Wrog]

I have a pair of these, purchased in April 2006 and have served me well up until this weekend when one of them failed to start (the other is kept on 24/7). Opened it up to find a couple caps leaking out of the top and a couple domed... a great candidate to fix! Luckily I have a 380W 80+ Earthwatts as a spare until I get this one up and running again. I found an old thread with a reply from PCBONEZ that lists all of the caps he used in his TPII-550, which is extremely helpful. I've worked on a few LCD monitors, but never a power supply. My questions:

1. The two big fat caps don't need to be replaced (similar to LCDs)?
2. Other than standard ESD and safety measures, is there anything to watch out for when working on power supplies?
3. Other than the caps, are there any other components that I need to check and potentially replace (besides the fuse)?

Pics will come tonight after I get home from work and after the little one is asleep. Thanks!