Corsair CX-600 photos

[Behemot]

Re: Corsair CX-600 photos

Use diode tester between all voltage rails and ground. If somewhere will be 0 (or like 1-2, for older topologies with mostly shared +3,3 and +5 V rails there is as low as 6 ohms and it works fine), you have the one shorted. If not, it's something else, compensation/power good I guess.

[rogfanther]

Re: Corsair CX-600 photos

Aaaaand it works. There was a shorted diode in the -12V line.

I humbly admit I hadn´t remember to consider checking for shorts in the cable end. Tested all the rectifires in the heatsink , all tested good, and started considering the problem to not be a short.

The psu is currently being tested, but has already endured some cycles of on/off and seems to still work ( fingers crossed ) .

Thank you very much Behemot, and the others who helped also. One more thing to remenber doing in the basic tests of defective psus...

Now, back to a bunch of coolermasters and sunpros that won´t turn on but are not shorted...

[RJARRRPCGP]

Re: Corsair CX-600 photos

^
CWT transistor based 5vsb circuits kill boards too. Remember the Antec StupidPowers?

It looks like I caught mine early!

In fall, 2011, I noticed my Antec SmartPower 2.0 500W PSU whining when real quiet in the house and the PC off.

Then shortly after, I took the cover screws off and pulled the cover off and after I did, I saw a bulging Fuhjyyu cap next to the outer exhaust fan. (the fan that seems to never work.)

PSU on the Acer desktop is now an Antec VP-450.

[BigTroll]

Re: Corsair CX-600 photos

wow, i just got a xclio 500watt goodpower and inside it looks just like the corsair as its a cwt build, however it actually has a 330uf 400v samxon and the secondarys are teapos.

[stj]

Re: Corsair CX-600 photos

i just fixed something very similar to that with the same "totally dead" symptoms.

tested all the semiconductors,
then got fed up and just thought "fuck it" and replaced the small electrolytics.


and - it works!!!

[Behemot]

Re: Corsair CX-600 photos

You have ESR meter stj?

[stj]

Re: Corsair CX-600 photos

no, it broke.
i had the old analog one wih the "speaker-wire" probes.
looking to get a new digital one off ebay soon.

a lot of my tools seem to be dying these days - my weller DS80 failed too

i dont think it would of helped with 85' small caps though.
there where only a few, i just put YXF & FC in instead.

[Behemot]

Re: Corsair CX-600 photos

I got a spare ESR Micro v4.0s, can send you with some caps…measures 0,01-65535 uF.

[stj]

Re: Corsair CX-600 photos

i was looking at one of these.

http://www.ebay.co.uk/itm/261518555263

[Behemot]

Re: Corsair CX-600 photos

That's auction so count on higher price.

Anyway, these things are mostly useless. I have more advanced CT-Micro V1.0 on this design (it's still the german design of like-a-multi-purpose testing device), in reality it is useless for measuring in-curcuit. You cannot manually select WHAT do you want to measure so it measures something else or nothing quite often. So far it only helped me with inverter transformers and small capst, mostly out-of-curcuit. I do ten times more diagnostic with ESR Micro and cheap chinese multimeter.

Also count on no support, no warranty, no battery.

[stj]

Re: Corsair CX-600 photos

i didnt expect support or battery.
and i only test off-board anyway.

as a standalone for testing small parts before fitting, it should be fine.

[Behemot]

Re: Corsair CX-600 photos

If you are OK with being many times slower, your choice. But having to replace all caps blindly or desolder them and test one at a time, that's just crazy. It actually quite explains why so many people here has so low annual sales they cannot afford anything. You save few bucks on chinese crap over something better but it makes you so much slower you don't earn anything because you repair single device in several times longer time-frame than me.

Sure, I don't succeed in repairing so many units, but after all, I earn much more doing for example 3 displays a day than doing one display/PSU for 3 days. Nobody will pay you for this and that is what you have to realize.

[stj]

Re: Corsair CX-600 photos

most of my repairs dont have any caps other than ceramics,
i work on large logic boards with dozens - even over 100 logic chips on them.

[Behemot]

Re: Corsair CX-600 photos

Yeah for ceramics it's good but once they are in circuit, baaad, they have to come out…

[zeldaww]

Re: Corsair CX-600 photos

i got one of these CX600 that is just not working

when i connect the green wire with ground and turn it on the fan spins for 1 second and shuts down.

I read there were cases where people had to connect 2 HDD and 2 fans for it to work correctly, but in my case i connected like 4 fans, disc drives and same problem, fan spins 1 second and turns off.

I checked the capacitors and they look brand new, when i see the caps there is no sign of inflated capacitors.



rogfanther : can i send you an email , maybe you can give me a hand with my PSU

[Behemot]

Re: Corsair CX-600 photos

Try checking the secondary rectifiers if some is not shorted…tat's always a good start.

[frogz81]

Re: Corsair CX-600 photos

Hi,

I got cx-600 with blown primary cap from my friend. cause he use Genset, and after a moment there is bang on PSU.

Upon checking it the primary cap explode.
already check diode bridge, mosfet PFC and PWM is good.

the question is whether simply replacing the primary cap can revive it?



Any suggestion is there more section/part to check or damaged part caused from this issue.

Thank for your help.

[stj]

Re: Corsair CX-600 photos

check fuse

[frogz81]

Re: Corsair CX-600 photos

Hi stj,

the fuse is good

[stj]

Re: Corsair CX-600 photos

then maybe its just the cap