It appears the smaller caps have a leak in the top?
What is going on with the ooze on the bottom of the larger caps?
Thanks!!
What is going on with the ooze on the bottom of the larger caps?
Thanks!!
Attached Files
-
-
Re: Are all of these caps bad?
sometimes the pressure forces out through the top stamp, other times it gets between the wire and the rubber bung - whatever gives first.
i can say with pana FC's if you do overstress one, the bung will leak long before the top domes or bursts.
btw, did you intend to attache foto's ? your wording made me think you did.Last edited by stj; 10-31-2014, 02:03 AM. -
Re: Are all of these caps bad?
It is glueComment
-
Re: Are all of these caps bad?
Yup. I'm pretty sure it's just glue.
Also, don't use photobucket or other 3rd party image hosting here. We prefer it if images are attached to your post locally.I love putting bad caps and flat batteries in fire and watching them explode!!
No wonder it doesn't work! You installed the jumper wires backwards
Main PC: Core i7 3770K 3.5GHz, Gigabyte GA-Z77M-D3H-MVP, 8GB Kingston HyperX DDR3 1600, 240GB Intel 335 Series SSD, 750GB WD HDD, Sony Optiarc DVD RW, Palit nVidia GTX660 Ti, CoolerMaster N200 Case, Delta DPS-600MB 600W PSU, Hauppauge TV Tuner, Windows 7 Home Premium
Office PC: HP ProLiant ML150 G3, 2x Xeon E5335 2GHz, 4GB DDR2 RAM, 120GB Intel 530 SSD, 2x 250GB HDD, 2x 450GB 15K SAS HDD in RAID 1, 1x 2TB HDD, nVidia 8400GS, Delta DPS-650BB 650W PSU, Windows 7 ProComment
-
Re: Are all of these caps bad?
yay, i see foto's this time.
yep, that's old glue - probably evostik or some variant.Comment
-
Re: Are all of these caps bad?
Why do they do that on them for ?Comment
-
Re: Are all of these caps bad?
probably to hold them down before the solder-wave machine does it's thing.Comment
-
Re: Are all of these caps bad?
That glue was a tan color when new. When it turn brown from heat, it gets conductive and
Don't ask me how I know conductive glue in a power supplyStupidity should be a crime, especially for drivers. I have NO patience for them.Comment
-
Re: Are all of these caps bad?
how old is the device? if 5 years or older I always unsolder at least one to see what the reading is. I found a lot of junk caps that way. caps can go bad without any visible defectsComment
-
Re: Are all of these caps bad?
Judging by the color of those caps and the board layout, it's at least 15 years old, if not more.A working TV? How boring!Originally posted by PeteS in CAComment
-
I know I've been a little scarce lately (like the last 2-3 years), but I'm still here and still doing my thing with fixing PSUs.
For today's considerations, I have a Seasonic B12 BC-550 [A551bcafh] 550 Watt ATX power supply for you (click on links for full size images).
https://www.badcaps.net/filedata/fetch?id=3591771
https://www.badcaps.net/filedata/fetch?id=3591772
It's a modern ATX unit with fixed (non-modular) cables and an 80-plus bronze certificate. Here's the label:
https://www.badcaps.net/filedata/fetch?id=359177... -
Hello,
First, I am a complete noob with high voltage stuff. I'm learning, but I need help by someone looking over my shoulder.
I recently came into posession of a Heathkit IO-4205 5MHz Dual Trace Oscilloscope. The documentation is copyright 1978. I'm told it works.
I opened it up to check the caps before I applied power, and found the following black caps and wanted to know what they were. They are on the power supply board. I was able to read the name and model and came up with, "Nytronics 162J-1, 0.1uF, 20% tolerance, 2000VDC."
... -
Hello!
I have two projects on my work bench. One is a friends dead JBL Xtreme speaker with a blown voltage regulator and corresponding bulged and shorted cap. That cap has clear markings so I know what replacement I need for it.
The other project however is a whole different deal. It's a Zoom 9000 guitar effect from the 90th that has developed a devil hound howl when there is no input from the guitar. I'm guessing caps problem. So, since I don't really use this effect anymore I thought it would be a perfect project to learn on.
I have studied the board and... -
I'm trying to repair two old VCRs, they both have bad caps. One has leaky ones, the other would barely run until I subbed in some caps from another power supply I had laying around (though they are the wrong values). This vcr works for an hour or two, but then the power supply starts whining and the picture gets lines in it. I didn't replace all the secondary caps, so another voltage might still be problematic, or the values I used are too far off.
I've been on mouser and digikey but the options are a bit overwhelming. I just need some new ones that will work. They don't need to be top quality,... -
Good evening
I recently aquired a rev 1.1 Gigabyte 60XT, and was suprised of the amount of leaking caps for a motherboard of the P3 era. Especially the way the 330µf caps seems like the housing discolored even.
Now, there are some 3300µF 6.3V KZG series around the CPU. Would it be OK to replace them with something like EEUFR1A332 ? (Panasonic FR 3300µF 10V). Or was this board designed around very low ESR caps?
But I was also suprised about the bigger boys, which are 330µF 25V.
Could it be they used 25V caps because they were cheaper / available at that time?...
Comment