in the face.
first bulging small smd i have seen.
first bulging small smd i have seen.
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Re: icom v8000 bulged smd caps
what voltage is it, and dont say 50.
i'm just thinking as it's only 2.2uf a tant may be better. -
Re: icom v8000 bulged smd caps
i will use 25v tants.
highest voltage is +5.Comment
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Re: icom v8000 bulged smd caps
Have you measure it ? I mean, is the device not working right ?Comment
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Re: icom v8000 bulged smd caps
it howls.Comment
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Re: icom v8000 bulged smd caps
How old is that thing? Might pay to replace the lot. I recently replaced all the SMD electrolytics in a Roland KR3500 because after many years they were ALL leaking, and for some it wasn't even obvious because the plastic base hid the evidence.
Not one was bulged, either."Tantalum for the brave, Solid Aluminium for the wise, Wet Electrolytic for the adventurous"
-David VanHornComment
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Re: icom v8000 bulged smd caps
i'v never actually seen one bulged, just leaked.
i didnt think the bung was good enough to let them build enough pressure to bend the can.Comment
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Re: icom v8000 bulged smd caps
Some of the early SMD electrolytics are prone to failure, especially in devices which can get hot inside.
I am also curious if there were SMD electrolytics which were not solvent resistant.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.Comment
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Re: icom v8000 bulged smd caps
Some of the early SMD electrolytics are prone to failure, especially in devices which can get hot inside.
I am also curious if there were SMD electrolytics which were not solvent resistant.
OK
+frekans and high power tx capasite termal uff
TA6ANOLast edited by yildirim05; 03-24-2015, 03:49 PM.Comment
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Re: icom v8000 bulged smd caps
Interesting. Also, they seem to look like they were made by Panasonic. The text font and clear (easily visible) lettering reminds me of them.
Perhaps there is a faulty circuit design? Or maybe the cap was manufactured incorrectly. (I see it's plastic base and band match the other caps, but maybe it was marked the wrong way around)
But, damn, looks like that thing is ready to launch!!!
How old is the device (radio?) that this was in?Muh-soggy-kneeComment
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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."
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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?... -
I did it again – I had to fulfill my inner desire to fix yet another old piece of hardware. This one is actually kind of worthwhile, too – it’s an EVGA e-GeForce 7600 GS AGP video card, model P/N: 256-A8-N542-T2. With the popularity of “retro” PCs from the Win9x to XP era going up, and the diminishing supply of decent AGP cards, it is expected their prices will go up. Or is it? I bought the this video card rather on the cheap side (~$9 USD shipped to my door), because the eBay seller listed it for parts or repair (and correctly noted the bad capacitors.)
So, here is the... -
Good day!
I have a Samson Resolv studio monitor that has no sound output. I've opened it up and found two caps that are bulging on what I believe to be the power supply section of the amplifier board. The board is marked Resolv 65A AMP V1.2. The caps in question are YUSCON, 2200uF, 35V, 85C temp and have markings of RA(P) and are 16mm x 25.5mm tall. I've attached the schematic and the caps in question are C5 and C6. I'm assuming they are low esr caps. I've tested both caps and they test low uF, nowhere near 2200uF.
I'm going to replace the caps and I'll be the first...
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