i did touch the wires..... i think it was more than 200 volts and 470 uF that burns.... never touch anything iff you not sure that its fully discharged.
My Topfield 5100PVR is crashing and I suspect bad capacitors causing it. I have previously replaced some of the capacitors (16v -> 25v) but apparently there's more to be replaced as I discovered a tutorial for that. Are those I've already replaced more likely OK or is it possible that they have gone bad again in some kind of "domino effect" and I have to replace them again? All caps visually look OK but I guess that doesn't tell anything about their condition...
Some time ago I was asked by a friend to look at their DVD player which stopped working. Knowing how much these things run on chips with 100 legs these days I fully expected not to be able to fix it, but I got super lucky. An electrolytic capacitor in the power supply was visibly swollen, so I replaced it and all was good. Nice when things like that happen :)
@NoobyJumper I understand this as I work on mainboards. Just thought that it would be good to include this little bit. Sometime desoldering can be a pain.
i have also a 25V Capacitor not sure how much uF but i think it is the same. How long does it take to charge with a 12V charger? i have a faulty circuit board ( charger ) also containing a 400V capacitor i think im not sure.
@jrodyoung80 I'm in the same predicament, my theory is that the tv (that's standby light flashes red when it detects an internal problem) doesn't allow for it's capacitors to fully break or dome before it stops working (unlike my pc monitor which died slowly allowing its capacitors to dome nicely :) so I'm gonna try to find which the power-on capacitors are then just replace those, or I'm gonna replace them one by one till it works. That or replace them all :(
@MrVander78alex It's a form or honourable suicide called seppuku where samurai kill themselves as a way to preserve honour when ordered to by the feudal lord or because of their own choice. Pretty ridiculous if you ask me.
ummm.... I wish you would of mentioned "Physical SIZE" like girls say "SIZE" matters. You wouldn't place a Surface Mount 220uf cap to replace a same size cap on a "HIGH Power Circuit".
@peshozmiata I use a 120V lightbulb with wires attached. Add some thick copper wire with insulation for probes, or cut up some old meter leads, and jumper the cap.
Thanks for the info. I have a small Kenwood amp that I'm working on at the moment. It has an annoying scratchy pop in one channel on powerup and I'm wondering if it might be a dodgy electrolytic. The amp is old enough to warrant replacing all the caps. Your advice would be appreciated. Regards.
This video help me understand the problem with my LCD screen and also helped me fixed it. 4 capacitors in the powered supply had leaked. I replaced them and it works like new. Yay!
I have just acquired a old peavey standard 260 and i opened it up to have a look. I'm sure a couple of capacitors need to be replaced. I plugged it in and tried to turn it on first thing, the light came on but no sound. After waiting a couple of days thats when i opened it. My question is after replacing the faulty capacitors if it does not work, whats the next most likely thing that could be wrong?
hey, nice video. Im building a power suply circuit with a capacitor in it which will feed a microcomputer. The battery which will power the computer is rated at 11.1 v. As I understand, more capacitance = greater charging/discharging time. so if I use a 1000 microfarad 16v capacitor in the circuit assuming low resistance(100ohms) 1 time constant should be 0.1 seconds. If I want a longer charging/discharging time therefore I would simply use a higher rated capacitor(3000 micro farads)?
So if I replace a bad capacitor with a good one, with the same uF and higher V is good. But will it change the circuit properties, or there will be no difference?
@1taintedsoul my bad ones are on that board, there is a thing in front of them that has a bunch of ehhhh kinda pointy flat things sticking up and its square, the bad ones are between that and the back of it where vent holes are, and some of under a metal thing
i need some help, my dell desktop pc has been crashing, and when i looked inside i saw some bad caps under what looks like a green hood, where a fan is and behind what looks like a processor, i know they need replaced, what i dont know is how to pick what to put in, i know it needs to be electrolytic because a tech i called said the caps are electrolytic, but what electrolyte do i need to buy? and how thick should the solder i need to be buy?
how do i check capacitor if looks ok from outside ,do i pull capacitor out from circuit board or i can check this without pulling out from circiut board,please tell me the easy method how cani check them on circiut board .
@afrotechmods I am gonna use a capacitor to smooth out a 6v battery, Now if it spikes to say 10v will the capacitor charge to that level or how do you set what voltage it spits out, If my battery somehow just spikes over the cap's voltage rating will it explode or will the cap skip it and kill my laser?
@R2Processor@afrotechmods How do I know when a capacitor is charged to a certion amount of volts? I need to smooth out some voltage. Or how do you charge it to only a certion amount, Thank you.
Very nice video! And what about Capacitor capasity? In the shop they always ask me 3 things: 1. voltage, 2 .capacitance rating, 3. Capacitor capasity.
i got 1 small question, i want to replace a capacitor that died on my wiper pulse board circuit, so the fabric one has 330uf with 6.5v, i got a new one on radio shack i found is the only one they had from other's so they had a 470uf 35v, do you think its fine? also the other thing the old one said has +105 oC temperature, the new one says -40o to +85oC, can i try it or not? will appreciate your help :)
Great video with good info, I have a Netgear router/combo that has some bad capacitors (Teapo) brand which makes pretty much ALL netgears product junk, Now I am replacing all the caps with new and hoping for the best
well i have a 1400uf 200V capacitor which is popped. and i ordered a 1400uf 400v capacitor. so should i replace it with that capacitor or should i lower the voltage.
Afroman, under what circumstances can I touch a capacitor without getting zipped? is it safe to touch after unplugging? will the thing still hold charge? thx!
I'm trying to put capacitors on piezo tweeters to prevent bass frequencies from for lack of a better word leak over onto the tweeter so that it doesn't blow. The capacitors that i have don't show polarity .. help please email me this is a serious question
If you are replacing a capacitor that doesn't have a positive or negative sign on it, how do you know which lead goes in which hole when installing the new capacitor? Thanks!
yeah, iv noticed the numbers on it b4, i didnt know what they mean.. you explained real well. =]. only if all the Tutorial, they were explained that well, lol
@DarkAvatar1313 It all depends on the circuit design. It could discharge in minutes, or it could take days. Since you don't seem experienced in discharging caps, I would wait at least 1 day. Then google for "capacitor discharge tool" to learn how to do it the safest way.
@DarkAvatar1313 take a little safety screw driver (with the fuse in them and a alligator clip out), connect a 1Kohm +++ resistor in series on it, and your ready to discharge! change the resistor by any big value. if the value is too low, it will short out the cap and maybe even burn some sensible electronic on the board. if the value is too high some special cap might now discharge properly. TEST TEST TEST AND USE.
Hi Afro, you mentioned that one should be careful, not to mess around with high voltage caps..so how do I discharge any voltage from these caps? Also, please record more tutorials as the info you give is really helpful. thanks man..
Another CRUCIAL thing NOT to forget - if you are repairing a switch mode power supply (SMPS) be sure to use LOW ESR capacitors - otherwise standard series resistance caps can overheat and EXPLODE from the ripple current.
@Afrotechmods No, don't always purchase capacitors with Low ESR. Only use Low ESR capacitors where the circuit is designed for them. Using Low ESR capacitors in circuits where the circuits were designed to use standard capacitors can actually result in other problems.
Ripple current rating is also another factor when using capacitors in the output of SMPS.
This is awesome. Using this advice and others, I picked an LG 42" LCD from the dump (paid £20 for it), replaced four capacitors in the power supply, and I have a working HDTV for about £25! I used Rubycon YXF to ensure the repair would last... has done so for about 2 months.
Excellent work man..! plz guide me how to choose values of capacitance of capacitors in amplification of small signals by using npn transistors (voltage divider biasing Arrangement).. i hope to get answer.. Good Luck..
Excellent work man..! plz guide me how to choose capacitors in amplification of signals by using npn transistors (voltage divider biasing Arrangement).. i hope to get answer.. Good Luck..
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@impulss86 What makes you think that pronouncing it with the "l" is the correct pronunciation? For that matter, what makes you think there is one correct pronunciation? You do know that many words have multiple acceptable pronunciations, right? You do know that people from different regions pronounce and even spell things differently, right? K, just checking.
@impulss86 Hmm...just like when there is an "r" in a word Aussies/Brits pronounce it, right? Your comment is extremely ignorant. There are myriad silent letters in the English language, which you would know had you passed fourth grade. If you really want to get down and dirty, I will take you on a walkthrough of solder and it's origins in Old French. I would explain how the spelling has varied through the centuries and how 90% of the time there was no "l". But I fear this would be lost on you.
@bong1318 Because they need to be larger to have thicker insulation between the two plates inside. The main reason is of course money, the less material you can use the cheaper it will be to make it.
For PC motherboard replacement (2002 capacitor plaque) or other applicatons -- leading spacing can be critical for proper fit (enough physical space for replacement).
Well...I too have had a lightning strike close by....and my Toshiba 40" lcd hdtv no longer works....the power light on the front of the set comes on and that's about it. Have been reading and watching here for a solution for I am one of those you mention in your video..."can't afford" an expensive fix. After looking at the capacitors I see nothing that looks "blown". I did replace the fuse to no avail. My question what would be your next step in searching for a solution. Thanks for any help
@hclippet you need to take it to someone who has some experiencing with servicing and repairs. When you don't see any parts burned it's usually simple to repair electronics in general. It happens too often that people throw away electronics which suddenly don't work anymore but can be easily fixed. Maybe not in your lightning strike case but often the cause are underrated capacitors in the power supply or somewhere else where they function as timed disabling part right after warranty expires.
Hey I am about to replace a old capacitior in my flat screen tv .but when I.looked I bout a 35volt and the one I took out the tv says 450volt. So I guess I have to take the 35 volt back right .by the way thanks for the video.please reply am a newbie
so If I took voltage as water pressure... I`ll be okay ?, good vid, is there any tip to discharge large capacitors without the shocking part?, thx in advance, I just suscribe, this is so useful could save yourself a lot of money in repairs.
Hey i've got an old tube radio i'm trying to figure out how to fix...(it was working a few days ago)..I have a multi-tester, but I'm not really sure where to start on this job (very little electronics knowledge) is the task before me likely beyond worth the effort in skill aquisition, or if not what's a good way to start learning about this kind of thing?
>.< 200 volts that would KILL YOU ok have fun! "um wait MFER how do i safely get rid of the charge?? real quick. before you tell me have fun!!! that would be nice. but ya thanks!! i'll youtube how not to die from changing them out.
Using a cap volt-rated TOO high above max volts in circuit is also a prob and should be avoided. Won't explode/leak etc but can result in unexpected stability problems in some applications. Can depend on cap type (polypropylene, etc) It also adds more cost than necessary to a project.
Some engineers recommend ~30% > the expected maximum
And general industry guide has been not exceed twice the max volt expected. E.G. if you expect max 10VDC then do NOT use 25V rated cap. Use 16 or 20V
i was thought that the shorter lead is the negative one and vice versa because some parts doesnt have painted indicator like cathode lights and even capacitors
Half a million views fro an electronics nerd video -= I trhink the tide has turned people, Mordor can only fall.
anarchore 23 hours ago
Your sense of humor is perfect. Great vid.
deebsboy 4 days ago
Awesome video!!! But you might want to REALLY stress to people you can die if you don't discharge high voltage caps properly.
wespalladini 6 days ago
Voice reminds me of DATA on The Enterprise
ralfyny 1 week ago
I was having an awesome day dream about throwing capacitors at walls, making them explode. Then at 1:27 that capacitor exploded... VERY LOUDLY! Lol
UnitedCommunists 1 week ago
Wow, thanks, I wish to know more about the soldering part... What kind of solder do you use, does it contain any silver? Thanks in advance!^^
KISSAproductions 1 week ago
i did touch the wires..... i think it was more than 200 volts and 470 uF that burns.... never touch anything iff you not sure that its fully discharged.
rafael44p 2 weeks ago
Great video, but I wish you could have explained the soldering part.
XionXi 2 weeks ago 2
0:58 lol!!!
ramilover91 2 weeks ago
what is the smoke that comes out of a exploded capacitor?
legofreak55555 2 weeks ago in playlist Autres vidéos de Afrotechmods
My Topfield 5100PVR is crashing and I suspect bad capacitors causing it. I have previously replaced some of the capacitors (16v -> 25v) but apparently there's more to be replaced as I discovered a tutorial for that. Are those I've already replaced more likely OK or is it possible that they have gone bad again in some kind of "domino effect" and I have to replace them again? All caps visually look OK but I guess that doesn't tell anything about their condition...
YouStubid 2 weeks ago
@YouStubid
There is topfield repair stuff....
fi.wikibooks(dot)org/wiki/Topfield_TF5X00/Kondensaattorien_vaihto
markkukp 1 week ago
Don't use a lower voltage rating than the original- the same or higher.
MrShnazer 2 weeks ago
Is that a capacitor too? ; )
--> 0:57
NXTWolf 3 weeks ago
Great video, this is exactly what I was taught in electronics class.
thelonehighlander 3 weeks ago
Some time ago I was asked by a friend to look at their DVD player which stopped working. Knowing how much these things run on chips with 100 legs these days I fully expected not to be able to fix it, but I got super lucky. An electrolytic capacitor in the power supply was visibly swollen, so I replaced it and all was good. Nice when things like that happen :)
lumabi25 3 weeks ago
You did not explain the removal process!
hicksrickygemini 3 weeks ago
@hicksrickygemini desolder it!
NoobyJumper 3 weeks ago
@NoobyJumper I understand this as I work on mainboards. Just thought that it would be good to include this little bit. Sometime desoldering can be a pain.
hicksrickygemini 3 weeks ago
@hicksrickygemini Get your self a solder sucker they very cheap
MrShnazer 2 weeks ago
wicked video..
cappaculla 4 weeks ago
got stung by capacitors like 5 times or more in my life. Im just stupid..
system0system0 4 weeks ago
Can I use 1000uF capacitor in place of 820uF one?
MrEmsis 4 weeks ago
i have also a 25V Capacitor not sure how much uF but i think it is the same. How long does it take to charge with a 12V charger? i have a faulty circuit board ( charger ) also containing a 400V capacitor i think im not sure.
daand12 1 month ago
When you solder, should not you heat capacitor feet and then but tin in feet so it would touch both side circuit? =) So I was taught.
xezzee 1 month ago
I'm having the same problem on my Philips 46", but none of the capacitors are busted or domed. What now?
jrodyoung80 1 month ago
@jrodyoung80 I'm in the same predicament, my theory is that the tv (that's standby light flashes red when it detects an internal problem) doesn't allow for it's capacitors to fully break or dome before it stops working (unlike my pc monitor which died slowly allowing its capacitors to dome nicely :) so I'm gonna try to find which the power-on capacitors are then just replace those, or I'm gonna replace them one by one till it works. That or replace them all :(
BENebuchadnezzar 1 month ago
at the end what was with this samurai ? LOL
MrVander78alex 1 month ago
@MrVander78alex It's a form or honourable suicide called seppuku where samurai kill themselves as a way to preserve honour when ordered to by the feudal lord or because of their own choice. Pretty ridiculous if you ask me.
BENebuchadnezzar 1 month ago
@BENebuchadnezzar are you serios man.?! what have this with electronisc ???
MrVander78alex 4 weeks ago
@MrVander78alex very little...
BENebuchadnezzar 4 weeks ago
what a great channel to have found! sub'd
mattibdtx 1 month ago
I like it.. i like it alot.
roberttherazor 1 month ago
ummm.... I wish you would of mentioned "Physical SIZE" like girls say "SIZE" matters. You wouldn't place a Surface Mount 220uf cap to replace a same size cap on a "HIGH Power Circuit".
MercuryBOT 1 month ago
This has been flagged as spam show
how to read SMD Code of a Transistor AND GET DATASHEET FOR A Transistor ?
skystar320GB 1 month ago
This was "shockingly" informative. Thank you very much.
...Ha!
C01DB100D 1 month ago
So if i have a 200V capacitor, what is the best way to discharge it?
peshozmiata 1 month ago
@peshozmiata Google "capacitor discharge tool" and never touch any wires with bare hands.
Afrotechmods 1 month ago
@Afrotechmods just touch the pins on a metal surface (short it out)
MrShnazer 2 weeks ago
@Afrotechmods or you can be ghetto and short it out with insulated pliers.
NobbysPcHelp 1 week ago
@peshozmiata I use a 120V lightbulb with wires attached. Add some thick copper wire with insulation for probes, or cut up some old meter leads, and jumper the cap.
therealjammit 1 week ago
@peshozmiata ukse a 1000uf 5W resistor
anarchore 23 hours ago
@anarchore I mean 1000 OHM LOL caps on the brain
anarchore 23 hours ago
Excellent video. Thanks very much.
ayrton272727 1 month ago 4
Thanks for the info. I have a small Kenwood amp that I'm working on at the moment. It has an annoying scratchy pop in one channel on powerup and I'm wondering if it might be a dodgy electrolytic. The amp is old enough to warrant replacing all the caps. Your advice would be appreciated. Regards.
Naughtyjug 1 month ago
such big capacitors mostly on old television units
phukemonster 1 month ago
Thanks! Now I understand capacitors properly!
IVercettiM 1 month ago
why do i keep laughing watching this,, this makes my day
soundtrip0213 1 month ago
i like watching ur videos.. very knowledgeable.. tnx :)
LadyCenT19 1 month ago
Love this vid,you got charisma and this is a very useful vid for me.
barlog20 1 month ago
Dude..Come to teach us to TEI Of Western Macedonia in Greece.
sakhsdragunof 1 month ago
funny in a way and yet informational...i wish school was like this
WEaponry101 1 month ago
great videos man, do you advise on home projects?
cobaltxtr 1 month ago
i hope i dont get the polarity wrong!!!
simonson593 1 month ago
This has been flagged as spam show
Solid capacitors does not leak
mrjonnoma 1 month ago
Solid capacitors does not leak.
mrjonnoma 1 month ago
Toss those junk Jamicon caps out of your toolbox sir.
2dfx 1 month ago
me like
8QJemimah746 1 month ago
great video. learned something i didnt know before.
FourthBattalion 1 month ago
This video help me understand the problem with my LCD screen and also helped me fixed it. 4 capacitors in the powered supply had leaked. I replaced them and it works like new. Yay!
Pagweb 1 month ago
me like it
pJJanelle306 1 month ago
I got to hand it to Samsung, they have the guts to place some 10 Volt capacitors on a 12 Volt board.
Yup my Samdung LNS4041D fail to turn on with that infamous clicking sound.
coruptmonk 1 month ago
Good Teaching! +1
tigersaid 2 months ago
one of the caps in my dell monitor psu was 450V Yikes!
allthatstuff35 2 months ago
THANK YOU! off to fix an xbox
fhsfiddleboy09 2 months ago
This is really sweet, thanks! Shame I have no experience with soldering...
bencheshire 2 months ago
@bencheshire But you do have experience with soldering,cuz you have the youtube videos to help you out with it
sharker102 2 months ago
I have just acquired a old peavey standard 260 and i opened it up to have a look. I'm sure a couple of capacitors need to be replaced. I plugged it in and tried to turn it on first thing, the light came on but no sound. After waiting a couple of days thats when i opened it. My question is after replacing the faulty capacitors if it does not work, whats the next most likely thing that could be wrong?
CKS5000 2 months ago
I read that electrolytic capacitor has no polarity or bipolar. I wonder whether it's true. The schematic symbol dosn't have a +ve sign.
greenb1a 2 months ago
hey, nice video. Im building a power suply circuit with a capacitor in it which will feed a microcomputer. The battery which will power the computer is rated at 11.1 v. As I understand, more capacitance = greater charging/discharging time. so if I use a 1000 microfarad 16v capacitor in the circuit assuming low resistance(100ohms) 1 time constant should be 0.1 seconds. If I want a longer charging/discharging time therefore I would simply use a higher rated capacitor(3000 micro farads)?
Andre8869 2 months ago
ok gtg replace some capacitors
boomy818 2 months ago
I accidentally touched the back of a camera flash circuit board. A small capacitor drained into my finger effectively numbing it for a few seconds.
SoCalFreelance 2 months ago in playlist More videos from Afrotechmods
So pretty much uf you get it wring it explodes
Good to know
XclusiveStylezzZ 2 months ago
So if I replace a bad capacitor with a good one, with the same uF and higher V is good. But will it change the circuit properties, or there will be no difference?
Thanks
AnasTangi 2 months ago
Great information,many thanks
Almahboal 2 months ago
Thank you. Very informative.
kornybun 2 months ago
how do you know which way is positive and whic way is the negative on the circuit board?
edwin81595 2 months ago
Are the capacitor located anywhere else or just in that circuit board?
1taintedsoul 2 months ago
@1taintedsoul my bad ones are on that board, there is a thing in front of them that has a bunch of ehhhh kinda pointy flat things sticking up and its square, the bad ones are between that and the back of it where vent holes are, and some of under a metal thing
feralbigdog 2 months ago
i need some help, my dell desktop pc has been crashing, and when i looked inside i saw some bad caps under what looks like a green hood, where a fan is and behind what looks like a processor, i know they need replaced, what i dont know is how to pick what to put in, i know it needs to be electrolytic because a tech i called said the caps are electrolytic, but what electrolyte do i need to buy? and how thick should the solder i need to be buy?
feralbigdog 3 months ago
Please , put legend in all your videos , it´s much easy to undestand .
Anyway , great videos , I really enjoy then .
Soulmindseeker 3 months ago
how do i check capacitor if looks ok from outside ,do i pull capacitor out from circuit board or i can check this without pulling out from circiut board,please tell me the easy method how cani check them on circiut board .
jhurloo 3 months ago
This has been flagged as spam show
hi, can a bad cap cause black screen at start up( no bios ),because i have the problem and i found one bad cap?! thx
decombe666 3 months ago
idk why i am watching this... i was watching dog videos.... but it was interesting thanks...
123abcbobcat 3 months ago
This helped me fix my psu for my gaming pc! Thanks!
RichPfoutz 3 months ago 6
@afrotechmods I am gonna use a capacitor to smooth out a 6v battery, Now if it spikes to say 10v will the capacitor charge to that level or how do you set what voltage it spits out, If my battery somehow just spikes over the cap's voltage rating will it explode or will the cap skip it and kill my laser?
R2Processor 3 months ago
@R2Processor @afrotechmods How do I know when a capacitor is charged to a certion amount of volts? I need to smooth out some voltage. Or how do you charge it to only a certion amount, Thank you.
R2Processor 3 months ago
that was helpfull!
daliks 3 months ago
Lol ! end of Video !
OcRefrigeration 3 months ago
I like this guy as much as the VSauce fella
adracamas 3 months ago
What could happen if I increase the capacitance by ,say, 2 times?
framelocator 3 months ago
Very nice video! And what about Capacitor capasity? In the shop they always ask me 3 things: 1. voltage, 2 .capacitance rating, 3. Capacitor capasity.
BlasterSuperMaster 3 months ago
i got 1 small question, i want to replace a capacitor that died on my wiper pulse board circuit, so the fabric one has 330uf with 6.5v, i got a new one on radio shack i found is the only one they had from other's so they had a 470uf 35v, do you think its fine? also the other thing the old one said has +105 oC temperature, the new one says -40o to +85oC, can i try it or not? will appreciate your help :)
they looks similar size btw.
X2N18 3 months ago
Great video with good info, I have a Netgear router/combo that has some bad capacitors (Teapo) brand which makes pretty much ALL netgears product junk, Now I am replacing all the caps with new and hoping for the best
Ruppster81 3 months ago
well i have a 1400uf 200V capacitor which is popped. and i ordered a 1400uf 400v capacitor. so should i replace it with that capacitor or should i lower the voltage.
raidendeath123 3 months ago
your so good! giving a clear and vivid elaboration.... wish ur my teacher!!!!
odrazil25 3 months ago
YOU MAKE KITTY SCARED!
southport97 3 months ago
Afroman, under what circumstances can I touch a capacitor without getting zipped? is it safe to touch after unplugging? will the thing still hold charge? thx!
MajorContango 4 months ago
This video is the highlight of my morning so far
eddimull 4 months ago
i just took out a 200 volt cap out of a old vcr
MDSVes 4 months ago
did the cat die :( ?
damarh 4 months ago
I'm trying to put capacitors on piezo tweeters to prevent bass frequencies from for lack of a better word leak over onto the tweeter so that it doesn't blow. The capacitors that i have don't show polarity .. help please email me this is a serious question
latina8ball 4 months ago
@latina8ball Not all capacitors are polarized, including ones that are designed for use in audio circuits.
Afrotechmods 4 months ago 4
This has been flagged as spam show
@Afrotechmods can you please explain why does for ac in a capacitor the current leads the voltage?? i know about the graph but why is this so?
mamu7mich 1 month ago
If you are replacing a capacitor that doesn't have a positive or negative sign on it, how do you know which lead goes in which hole when installing the new capacitor? Thanks!
cwa57f 4 months ago
@cwa57f some cap dont have polarity, you can put them either way.
hitachi088 4 months ago
yeah, iv noticed the numbers on it b4, i didnt know what they mean.. you explained real well. =]. only if all the Tutorial, they were explained that well, lol
DayvidSlice 4 months ago
@Afrotechmods God dammit man, i love the way you teach through your vids ... Theory, explanation, explosions, more explanation
lekkimsm2500 4 months ago 22
fantastic video :) nice editing
deepthinker69 4 months ago
nice video. you didn't mention tolerance or minimum life at 105 degrees C though.
Lockemeister 4 months ago
Great video, gonna replace them on my Samsung LCD tv now. Thanks.
rgcoley 4 months ago
How long would you have to wait until a 200v capacitor would be safe to touch/desolder/let the cat poke at it?
DarkAvatar1313 4 months ago
@DarkAvatar1313 It all depends on the circuit design. It could discharge in minutes, or it could take days. Since you don't seem experienced in discharging caps, I would wait at least 1 day. Then google for "capacitor discharge tool" to learn how to do it the safest way.
Afrotechmods 4 months ago
@DarkAvatar1313 take a little safety screw driver (with the fuse in them and a alligator clip out), connect a 1Kohm +++ resistor in series on it, and your ready to discharge! change the resistor by any big value. if the value is too low, it will short out the cap and maybe even burn some sensible electronic on the board. if the value is too high some special cap might now discharge properly. TEST TEST TEST AND USE.
hitachi088 4 months ago
@DarkAvatar1313 if you short circuit the copasitor, all the energy would go out
nickyforiasha 3 months ago
Awesome! thank you.
mike060187 4 months ago
Amazing
cogoyete 4 months ago
Great video.. This is exactly what i was looking for abt capacitors..
damadusha 4 months ago
I love This guy talks about electronics!
turtlecat77 4 months ago
very well made!! THANKS
Sabockis 4 months ago
Hi Afro, you mentioned that one should be careful, not to mess around with high voltage caps..so how do I discharge any voltage from these caps? Also, please record more tutorials as the info you give is really helpful. thanks man..
dragonlee1bfed 4 months ago
This is what I was looking for! Big thanks
Anakox 5 months ago
Thanks a lot it was just what I was looking for.
buxs72986 5 months ago
I love your vid! Keep it UP!
Penfold8 5 months ago
Great video, learned a lot....
blackjack6934 5 months ago
wtf @ :59?
astranger15 5 months ago
lols, i dont think you would die from impalement if you touched a fully charged 200v capacitor x)
sweepea38 5 months ago
LOL!!!! 2:18
NovemberGeorge 5 months ago
never mind that post under this 1 i see now
TheMMAGeek 5 months ago
does getting the polarity right mean getting the pins to the right holes? im trying to learn this but i dont really get what the polarity is.
TheMMAGeek 5 months ago
...Or you will die. well that was enlightening ^^'
xato909 5 months ago
Another CRUCIAL thing NOT to forget - if you are repairing a switch mode power supply (SMPS) be sure to use LOW ESR capacitors - otherwise standard series resistance caps can overheat and EXPLODE from the ripple current.
l28power 5 months ago
@l28power Agreed. Whenever possible, purchase capacitors with low ESR.
Afrotechmods 5 months ago
@Afrotechmods No, don't always purchase capacitors with Low ESR. Only use Low ESR capacitors where the circuit is designed for them. Using Low ESR capacitors in circuits where the circuits were designed to use standard capacitors can actually result in other problems.
Ripple current rating is also another factor when using capacitors in the output of SMPS.
Tda7000 5 months ago
thank you for the info, this video is so funny I have to wach it trhee times. thank again...
papiceferino 5 months ago
Great tutorial. Thank you
lonnsaunders 6 months ago
like the humour..I learned alot from your video..thank you! Next: soldering!
bigcanuckful 6 months ago
This is awesome. Using this advice and others, I picked an LG 42" LCD from the dump (paid £20 for it), replaced four capacitors in the power supply, and I have a working HDTV for about £25! I used Rubycon YXF to ensure the repair would last... has done so for about 2 months.
ubuntututorials 6 months ago
I need to replace a capacitor but I cannot find one with the same uf rating. Would it be okay to use one that is different by only 5uf?
MrGramaphone78 6 months ago
HAHAHAH @ 0:57
KRAYSLiCK999 6 months ago
Comment removed
ghoust 5 months ago
Oh Thanks Man!!
MrDogBRN 6 months ago
You're awesome! Funny AND educational.. Very useful information, and nice pictures and clips so even us idiots will understand ;)
LaxLohi 6 months ago
so a computer technician charged me 900 dollars?... hahaha
zarzadsuarz 6 months ago
Excellent work man..! plz guide me how to choose values of capacitance of capacitors in amplification of small signals by using npn transistors (voltage divider biasing Arrangement).. i hope to get answer.. Good Luck..
jahilengineer 6 months ago
Excellent work man..! plz guide me how to choose capacitors in amplification of signals by using npn transistors (voltage divider biasing Arrangement).. i hope to get answer.. Good Luck..
jahilengineer 6 months ago
Thanks for that! And thank you for being the first American who can say "solder" correctly not "sodder"
impulss86 6 months ago
@impulss86 I'm not American *facepalm*
Afrotechmods 6 months ago 19
@Afrotechmods Oh well I guess they still can't say it then. Where are you from?
impulss86 6 months ago
@Afrotechmods He's clearly Canadian :) you guys have a neat little accent similar to us in New England.
fingerboy18 5 months ago
@Afrotechmods pause at 1:28 and the capacitor is in reverse polarity, the same clip is used again when you talk about reverse polarity
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atvrhtd 6 months ago
@impulss86 What makes you think that pronouncing it with the "l" is the correct pronunciation? For that matter, what makes you think there is one correct pronunciation? You do know that many words have multiple acceptable pronunciations, right? You do know that people from different regions pronounce and even spell things differently, right? K, just checking.
gaozhi2007 5 months ago
@gaozhi2007 Mate if theres an L in a word, you pronounce it. Your just a lazy breed.
impulss86 5 months ago
@impulss86 Hmm...just like when there is an "r" in a word Aussies/Brits pronounce it, right? Your comment is extremely ignorant. There are myriad silent letters in the English language, which you would know had you passed fourth grade. If you really want to get down and dirty, I will take you on a walkthrough of solder and it's origins in Old French. I would explain how the spelling has varied through the centuries and how 90% of the time there was no "l". But I fear this would be lost on you.
gaozhi2007 5 months ago
@impulss86 Talk, walk, chalk, calf, half--I suppose since you aren't one of us "lazy breed" you pronounce the "l" in these words too, right?
gaozhi2007 5 months ago
1:25
JDTV1995 6 months ago
If only my electronics teacher was as clear as this video, I would have understood more and loved my electronics classes in high school. :-)
illtrigger 6 months ago
I've a question .
if high voltage capacitors are safe. y dont they come with high voltages in all the type of capacitors?
bong1318 6 months ago
@bong1318 Because they need to be larger to have thicker insulation between the two plates inside. The main reason is of course money, the less material you can use the cheaper it will be to make it.
Vlakpage 6 months ago
That approach has been used for decades.
For PC motherboard replacement (2002 capacitor plaque) or other applicatons -- leading spacing can be critical for proper fit (enough physical space for replacement).
w9gb
w9gb 6 months ago
Well...I too have had a lightning strike close by....and my Toshiba 40" lcd hdtv no longer works....the power light on the front of the set comes on and that's about it. Have been reading and watching here for a solution for I am one of those you mention in your video..."can't afford" an expensive fix. After looking at the capacitors I see nothing that looks "blown". I did replace the fuse to no avail. My question what would be your next step in searching for a solution. Thanks for any help
hclippet 6 months ago
@hclippet you need to take it to someone who has some experiencing with servicing and repairs. When you don't see any parts burned it's usually simple to repair electronics in general. It happens too often that people throw away electronics which suddenly don't work anymore but can be easily fixed. Maybe not in your lightning strike case but often the cause are underrated capacitors in the power supply or somewhere else where they function as timed disabling part right after warranty expires.
Vlakpage 6 months ago
Nice video!!!!
ibp202 6 months ago
Hey I am about to replace a old capacitior in my flat screen tv .but when I.looked I bout a 35volt and the one I took out the tv says 450volt. So I guess I have to take the 35 volt back right .by the way thanks for the video.please reply am a newbie
streetz180 6 months ago
Dude best tutorial ive ever seen!
milkymilkway 6 months ago
Goo is electrolytes.
milkymilkway 6 months ago
That's really useful information for someone like me who knows nothing at all about capacitors and such stuff. Funny too.
keveen2 7 months ago
That's really useful information for someone like me who knows nothing at all about capacitors and such stuff.
keveen2 7 months ago
very funny informative video! Good work!
unosec 7 months ago 2
so If I took voltage as water pressure... I`ll be okay ?, good vid, is there any tip to discharge large capacitors without the shocking part?, thx in advance, I just suscribe, this is so useful could save yourself a lot of money in repairs.
kingcoapa 7 months ago
beware at 0:58 the man has very deadly weapon. no girl or boy wana mass with him.
gulparviz 7 months ago
Hey i've got an old tube radio i'm trying to figure out how to fix...(it was working a few days ago)..I have a multi-tester, but I'm not really sure where to start on this job (very little electronics knowledge) is the task before me likely beyond worth the effort in skill aquisition, or if not what's a good way to start learning about this kind of thing?
Itseasyifyoutry 7 months ago
>.< 200 volts that would KILL YOU ok have fun! "um wait MFER how do i safely get rid of the charge?? real quick. before you tell me have fun!!! that would be nice. but ya thanks!! i'll youtube how not to die from changing them out.
bulviwoodson 7 months ago
You can go over to a point
irulethe70s 7 months ago
Using a cap volt-rated TOO high above max volts in circuit is also a prob and should be avoided. Won't explode/leak etc but can result in unexpected stability problems in some applications. Can depend on cap type (polypropylene, etc) It also adds more cost than necessary to a project.
Some engineers recommend ~30% > the expected maximum
And general industry guide has been not exceed twice the max volt expected. E.G. if you expect max 10VDC then do NOT use 25V rated cap. Use 16 or 20V
exgenica 7 months ago
LAMO great intro
chabird 7 months ago
i was thought that the shorter lead is the negative one and vice versa because some parts doesnt have painted indicator like cathode lights and even capacitors
trishkaishi 7 months ago
u kinda sound like the xtranormal guy
HankHillCrankCalls 7 months ago
hilarious but informational tutorial lol i shit my pants no lie
foxracer7474 7 months ago