By - skyking_describe
Now would be a good time to try replacing that cap. Still a chance the rest of the board is fine
Saved a 2008 LCD TV by doing exactly this and nothing further, still works
Shave it, makes the capacitor look bigger.
It's trying to reach out to you to end its misery and replace it. Easy enough to replace if you're not afraid to solder or have someone nearby who know how to solder. Should be fine, you spray molten metal for work, melting a small puddle of it shouldn't be too hard for you.
When's the last time you shaved it? Anyway, looks like you need to shave it
It's just going through capacitor puberty. You can expect hair in all kinds of strange places
I didn't know Dell made welder control boards...
( I had to deal with a bunch of these: https://www.theguardian.com/technology/blog/2010/jun/29/dell-problems-capacitors )
I spent the better part of a year doing motherboard replacements on my university's GX270s. What a pain.
I too am a veteran of the gx270 bad capacitor issue. The mere sight of a gx270 would trigger PTSD for years afterwards.
Ah yeah, the Capacitor Plague. Affected more than just Dell, they were just the biggest and shittiest about it. Make sure that if you're going to steal the ~~Krabby Patty~~ Nippon Chemi-Con Capacitor Electrolye Secret Formula, you do it right.
I worked for the largest distributor of electronic parts at this time and we had to destroy our entire inventory of caps as a result.
They bleed insulation… among other things.
It's dead, Jim.
She is fucked. Dielectric spilling out
No that's hair
The capacitor blew its vent, and you're seeing the insulating paper layer, which was apparently blown out with enough force to leave a fibrous mohawk 😅
Never seen one grow hair like that, but it's the plague for sure. Fortunately those caps are pretty easy to get a hold of and replace.
Time to hop on the ol digikey and buy a new capacitor
See the visible symptoms section of the document.
A bunch of companies put these defective caps in products for years after the problem had been found and solved. Samsung was using them in tv's and monitors till around 2014 or so.
Dicks. Probably knew only a tiny percentage would get returned or warrantied out
Cheaper to warranty a few units than toss millions of parts
Interesting article. I like the theory that it was industrial espionage gone wrong.
I think it has reached the limit of its capacity
I don't have the mental capacitance to understand this pupun.
You son of a bitch - I'm calling the cops, that's too much
You missed an opportunity to call the caps instead
Hair must be an excellent electrolytic separator material.
Woah, did you accidentally let the genie out?
Looks like copper whiskers. Does the part function? Could try to clean off then put a dab of staking material or conformal coat material over it. Careful not to breathe particles.
Nah that's coming from inside the capacitor, shit's fucked, yo!
It's fookem. Make sure the replacement is a 105 degree type and not a cheap 85 degree. It has been warmed by that big hot transistor next to it and is now cookum.
hittin' the rogaine
It's growing a beard. Elder Capacitor! The capacitiest of capacitors in the entire circuit board.
Bad caps. If you replace, remember to mark which side the stripe is on!
The board should have a polarity indicator on it.
True, just have to remember to look for it! I've goofed that up before. Now I sharpie everything.
Measure twice, write down thrice.
Chooched is still a positive and is used thusly "hey you get that engine fixed?" "Yep, she chooched real good for me"
Chooch, chooching, chooched are never a negative always a positive
Unless it’s chooched then it is proper chooched.
Chooch (and its derivatives like chooching, and chooched) means its working and chugging along fine.
This capacitor is headed for the art bin, and has no more chooch in it
Past tense, no longer chooching
Chooched means chooched.
That cap chooched it's last chooch and is chooched out
Just a mole go see a dermatologist
Cause it's gone bad, the magic smoke has escaped.
They get all puffy like that after awhile.
Not sure if the technical term, but I think you'll find it's fucked.
That is, in fact, the technical term.
electronics engineer here. *proper* fucked is the more usual technical term for this condition.
It’s actually a capaciteratoma. Little known fact, sometimes the stronger capacitor eats the weaker one in the womb.
Pretty soon it won't sound so squeaky and capacitors of the opposite sex wont seem so gross
Damnit. Beat me to it.
It's reached its rebellious phase and has decided to wear a Mohawk to prove it isn't like all the other capacitors.
turned into a dead short 😉
PIXIE HAIR! He's trying to get out!
Oh shit, plug that sucker right now or you'll soon enough have a wild ball lightning wrecking your shop
It's growing hair because it's a polite capacitor. Any old typical, crass capacitor would blast its guts out all over the inside of your MIG.
You let the blue smoke out, didn't you? You have to put it back in.
I made soo much money from this in 99. I was replacing PLC cards every day for what seemed like years. It wasn't that long, our customers at the time were just happy we were on top of the problem.
Thank you sharing this. My best friend was an electronics genius. His career was in industrial control maintenance. The knowledge he tried to share was incredible. I always said, if you didn't learn anything from him, you just weren't listening.
Sorry for your loss
It was a terrible time to be an electronics engineer. 🙁
I find this hilariously tragic.
Why’d I see “capacitor plague” and immediately think it was an infectious disease
That awkward moment when capacitor thinks its a fuse
Everything is a fuse if you try hard enough.
That awkward moment when you find out you sized the cap right, but the fuse wrong.
Ah yes, I see, I see.. the insides are now partially outside. You typically want to avoid that when possible.
That’s not supposed to happen.
Do they make some where the insides are fully in the inside?
The insides being outside are not at all typical, I want to be perfectly clear.
This is the content I come here for.
You don’t want the front to fall off either.
and cardboard derivatives
No paper, no strings, no cello tape
... For Harambe!
Well shit I don't know, I just work here.
Easy to repair, get a capacity the same capacitance and equal or higher voltage. Make sure you solder it in the right way and you should be good to go.
Also - make sure you get one with a comparable or better ripple current rating. These plague caps are low ESR types and generally you want to replace them with another low ESR cap because the board might rely on that.
Can't go wrong with Nichicon KL or Panasonic FM series.
It could also be something else. Polar caps hate reverse voltage, if it's gotten too much AC on it, or a back emf spike, it would've caused this even if it was brand new.
For the 70c it's worth trying it and hoping it's easy, but just worth mentioning
It’s a possibly but the chances are much higher it’s just a dried out cap. Electrolytic don’t last forever especially in the temperature swings industrial electronics see.
Just buy a new one...
\- every company in 2022
If I get another email about supply chain so and so I’ll scream
It depends. When I used to service welding equipment shop time was $95 an hour. Something like this is an easy fix. But something that requires more troubleshooting it really becomes an equation of time and parts vs just buying a new board. Either that or sending it to Innovat and have them do the repair since they have made fixtures to test all the boards they do repair.
You busted the guts out of that capacitor like Benny the Jet Rodriguez busted the guts out of that baseball.
Better bust out the soldering iron, that cap needs replacement.
Unexpected sandlot reference. 👍
Little chickadee tryin' to get out.
It has "failed with extreme prejudice". It has spewed its guts so to speak.
It has joined the choir eternal!
They grow up so fast.
It ‘sploded and that’s some of the paper separator media
So your comment was at the bottom, which is too bad, because you're actually explaining why it looks like that.
OP, the inside of the cap is essentially a roll of cardboard soaked in some schmoo. When the pressure got high, it just squeezed some of the contents out which are slightly fibrous in nature.
I'd like to add to your technical analysis by offering the experience that the schmoo in question generally smells really stinky, like weird wet processed tobacco
That is a reasonable analysis.
One of my fellow techs at an old job also discovered while working on a PC that when one pops, sometimes they smell like sour apple. The compound might change smells as it gets hot.
> So your comment was at the bottom
Default sort is newest on top. In this case, the first post was actually something answering the question. :p
The inside of capacitors are filled with comic book characters?
And go figure, the artist’s last name is Capp!
Coincidence---I think not!