Re: fsp 700w blows fuse when powered on
dust is cleaned
the glue was non conductive
1.will trace later
2.that i didnt touch when plugged because im afraid maybe it will blow or something thus its producing sound when plugged, btw im using a 100w dim bulb on the test.
techman2012
Member
Last Activity: 09-08-2012, 01:04 AM
Joined: 08-23-2012
Location: mla
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Re: corsair hx620 hissing/rattling sound
i see i think i saw some first is on the main input then on the primary and manymore near the coil with ferrrite choke, where do i need to check and begin? btw how to test it if good or bad? thanksLeave a comment:
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Re: fsp 700w blows fuse when powered on
yup i got the polarity right since the test i havent checked/opened again what made that soundLeave a comment:
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Re: corsair hx620 hissing/rattling sound
@ben7 what do you mean by snubber cap? whats that?Leave a comment:
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Re: fsp 700w blows fuse when powered on
yes im carefull when i removed and replaced the parts, there were no washer nor sleeves present.
after the test i havent checked if the replaced main cap or three fets have failed or not. will check it soon. btw while im testing it earlier with the bulb test, at first the light is dim then when i short green to black for psuon, the bulb glows full also the fan doesnt spin and i dont get any 12v/5v/3.3v reading
. though it has a sound like a cap that is to bulge. but i didnt see any cap that bulge...
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Re: fsp 700w blows fuse when powered on
so what do i do now? what do i need to check/how? thanksLeave a comment:
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Re: fsp 700w blows fuse when powered on
already replaced the 3 mosfets and the main cap
made the bulb tester and its still a short since it lights up brightly
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Re: corsair hx620 hissing/rattling sound
@ khron666 will further test tomorrow with complete pc parts and try to load an os
thanks for the replyLeave a comment:
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Re: corsair hx620 hissing/rattling sound
what could be the reason when no load it produces that sound, just now i just tried to plug it on the motherboard with processor and mem, no harddrive it boots up and the noise is gone, now i tried to short the pin to power on then the noise came, its like the psu likes to have a load so noise is gone,Leave a comment:
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Re: corsair hx620 hissing/rattling sound
@tom66 already tried that still thesame
does this have a relay or something?
[URL="http://tinypic.com/player.php?v=v8orkg&s=6"]http://tinypic.com/player.php?v=v8orkg&s=6[/URL]Re: corsair hx620 hissing/rattling sound
@tom66 already tried that still thesame
does this have a relay or something?
[URL="http://tinypic.com/player.php?v=v8orkg&s=6"]http://tinypic.com/player.php?v=v8orkg&s=6[/URL]Leave a comment:
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Re: corsair hx620 hissing/rattling sound
coils? can i make the sound go away? what if the scenario is once i put a load let say a motherboard or just even a fan then it shuts itself off, what do i need to check?
thanks c_hegge for the replyLeave a comment:
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corsair hx620 hissing/rattling sound
hi can someone guide me on what to check?
already did check the fan so its not the fan that makes noise also the voltage of the 12v is somewhat low
[URL="http://tinypic.com/player.php?v=21b8ys6&s=6"]http://tinypic.com/player.php?v=21b8ys6&s=6[/URL]hi can someone guide me on what to check?
already did check the fan so its not the fan that makes noise also the voltage of the 12v is somewhat low
[URL="http://tinypic.com/player.php?v=21b8ys6&s=6"]http://tinypic.com/player.php?v=21b8ys6& -
Re: fsp 700w blows fuse when powered on
main cap is 470uf 400v
btw here is the pic of the blown fuse before...Leave a comment:
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Re: fsp 700w blows fuse when powered on
@momaka already removed all the straight heatsink to test the other one seems to be like a diode is ok besides the 3 20n60c3
as for the main caps later i will check it out for the exact values.
thanks all for the reply
will comeback for the result/updateLeave a comment:
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Re: fsp 700w blows fuse when powered on
thanks c_hegge for the replyLeave a comment:
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Re: fsp 700w blows fuse when powered on
sorry my bad the one differs from the two everywhere i put probe the dmm beeps which means like shorted like when i put my probe + to - and it beeps
anyway ill try to find a 20n60c3 and replace the 3 of them to be on the safe side also will make that dim bulb tester
also if i will replace the capxon main cap
for ex:
320uf 600v original
can i replace it with
400uf 600v
or
320uf 650v?
also is it possible a main cap has problem thats why the mosfets got shorted out?Leave a comment:
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Re: fsp 700w blows fuse when powered on
currently checking the igbt removed the igbt 20n60c3
seems something is wrong which one is faulty here?
dmm set to diode
G C+lead E-neg lead
no reading
but if
G C- E+
i get a reading of 0.490v
one of the igbt when on these test gives out 0.007v
[url]http://www.scribd.com/doc/49954768/20n60c3[/url]
as for the testing i watched this one
[url]http://www.youtube.com/watch?v=AfV7gYChILc[/url]Re: fsp 700w blows fuse when powered...Leave a comment:
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Re: fsp 700w blows fuse when powered on
both bridge rectifier are okLeave a comment:
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Re: fsp 700w blows fuse when powered on
noted currently removing the bridge rectifier
will post update in a while
thanks for the replyLeave a comment:
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fsp 700w blows fuse when powered on
hi can anyone help me out on which part i should check on what is shorted out or broken?
already replaced the fuse for the 1st time and
1. power on switch on psu socket = fuse ok
2. once psu is switched on via the power on 24 pin the fuse blows
here are some pics taken
what else do i need to check and how to diagnose
thanks in advance for your help
[URL=http://*************/photo/my-images/23/img051lp.jpg/][/URL]
[URL=http://*************/photo/my-images/341/img046rd.jpg/][...
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