Re: Weird Yellow Caps
Yes, they are solid polymer units.
http://jp.fujitsu.com/group/fmd/en/services/capacitor/
Yes, they are solid polymer units.
http://jp.fujitsu.com/group/fmd/en/services/capacitor/
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My first choice in quality Japanese electrolytics is Nippon Chemi-Con, which has been in business since 1931... the quality of electronics is dependent on the quality of the electrolytics. -
Re: Weird Yellow Caps
that 360 is having video card issues, i would send it back to ms to be repaired, and the rattle is normal just a position sensor.
the current theory is that the boards did not get baked long enough allowing the bga chips to move a little when they get hot, or getting so hot that it is desoldering the video chips, some people were have a little luck with a heat gun rebaking the board
http://www.youtube.com/watch?v=T5nfmJTQJr8
http://www.youtube.com/watch?v=oLabckoPC0g
Last edited by dirtyone; 04-10-2007, 12:25 AM.Comment
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Re: Weird Yellow Caps
Given that these are both 820UF, why do you recommend 2200 replacements?Originally posted by Rainbow
Seem to recall an earlier post recommending larger values for replacing solid polymers with electrolytics.
Is this the case and what is the rule of thumb to use in this instance?Comment
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Re: Weird Yellow Caps
Yes, this is the case there. Solid polymer caps have usually very low esr & high ripple current capability compared with standard low ESR caps.
This is especially true for the caps with lower capazitance.
Therefore it is recomended to match the ripple & ESR of the polymer cap and the lektrolytic replacement.
Usually you have at least to double the capacitance of an standard low ESR eletrolytic cap to reach similar low ESR and high ripple capability.Comment
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I recently acquired a set of Bose Roomate speakers from the mid to late 80's. Basically the right speaker cabinet is completely passive, and the left one has the power transformer and amplifier circuit in it. Out of curiosity, I opened it up to see what the circuit looked like. Looks like they used all Nichicon VX (2x 4700uF/16v for smoothing off the bridge rectifier), a couple random Nichicon SE series sprinkled on the board, and what really caught my eye - 2 yellow sleeved Nichicon caps (both 1uF/50v with no real series marking. Below are pictures of the caps. The only thing not shown in these... -
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!
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?...
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