Samsung USB Charger Failure and Repair
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- čas přidán 14. 09. 2017
- In this video I'm examining and repairing my faulty USB phone charger (5V 1A switching power supply). It failed after 2 years of seldom use. I've drawn a partial schematic in the video. Full reverse engineered schematic of this charger is here:
danyk.cz/reverz33_en.html
WARNING:
Mains voltage is dangerous! Risk of electric shock and death. Risk of fire. Leave repairs to professionals. You do everything at your own risk. This video is not an instruction (this is just my vlog).
You can support me on Patreon:
/ diodegonewild
My Instagram:
/ savage_danyk - Věda a technologie
Dude, I'm a technician and this is about the only size circuit I would attempt to troubleshoot. Trying to troubleshoot more advanced circuit systems like phased array radar systems and circuitry with analog and digital circuitry on the same board can be stressful and frustrating. This is a great starter circuit to learn how to troubleshoot. BTW, the guy doing this video would make a great electronics teacher.
Ahhh... those broken radar things that must be fun, lol
here he didn't troubleshoot much,just replaced parts until he got it; did not even look at the board to see if there was any obvious contamination; it is all another utube trick to get views, because he had smelled the leaked electrolite, he **knew** it might need moping up;
He is an electrical engineer
Certainly agree man
Yeah the guy has an accent, but I bet 90% of those people making fun of him does not speak a foreign language, not even has the knowledge he does. So lets stop making fun and start learning ;) The content is VERY GOOD and he is speaking a very understandable english, I am not a native english speaker and I understand everything, in the end of the day that is what really matters. Come on, he could easily speak his native language and we would never understand it. Thanks for the good informative video.
That circuit diagram is the stuff of Engineers, this man knows this stuff. 😍
👉czcams.com/video/V5F4-OpYg7k/video.html👈
Can't he be an engineer?
If you're paying attention to WHAT he's saying, you quickly stop noticing HOW he's saying it. Following his thought process is probably the best way of learning you will encounter anywhere. This guy is a pro.
The moment when he said "SAMSOOUNG", my charger starts to repair itself
LMAO
😁😁
Hey you😮
He he he 😂
LLL
What do i know about electronic repairs? Nothing. But i watched the whole thing. I love your enthusiasm. Stay awesome!
I have no idea how you look at a circuit board and read it like a book. I've tried to learn this for a while, people who can do what you do amaze me. Great video!
Same here, i am amazed by such people who can read circuits and explain their working based on their placements!! Becoming one may need lot of experience and first hand play, and a lot of designing skills too i suppose
You take a circtuit and follow the trace. You draw it as you go along. My hint is to first of detect the power supply lines.
Never heard this accent before. Best ive heard so far. Subscribed 😎
👉czcams.com/video/V5F4-OpYg7k/video.html👈
@Anirudh Kowshik ummm no
It's Czech I think
@@SidharthCAnilyea it is,
on description ;)
Before scrolling down to the comments, I also guessed lots of commenters would have fun with the voice. Its funny, but easy to hear anyway, because of good audio quality.
But more important - this man is a electonics professional.
He obvious knows alle the individual details and functions/principals of the switch-mode power supply circuits, so listen and learn...
Pay special attention to the evaluation of the isolation band between the high voltage and low voltage section. Important safety....
Thanks to this DiodeGoneWild for using so much time on an $5 unit. You know your knowlegde.
It's pretty sad that the top three comments are about his accent instead of the product in this video. Yes he's got an Indian sounding slovak accent (if there's such a thing he-he), but it's all good, the guy's very knowledgeable and that's all that matters. He's made or cables and wires, with deep dark desires, so don't touch him! :D "That's niiiiiiiiiiice!" if you know what I mean ;)
ehh he's ok.
He has a web page danyk cz
@@morfisiuslizerro6400 If i dont like his voice that wont make me a racist (or any other here), just to make it clear.
@@morfisiuslizerro6400 Greetings, hypocrite! You do realize that you are saying racism spares white people, but then, in the same post, generalize all white people & call them stupid, right? That makes you racist. Against white people. So you've proven yourself wrong. Racism doesn't spare white people either. I do agree that racism is stupid, though. You demonstrate that quite well. But the more people continue to talk about it, the longer they keep it alive. If everyone could forget about it & simply hold individuals accountable for their own actions, then racism would be a thing of the past. As Gandhi said, "Be the change you wish to see in the world."
"This is going to be complicated... and maybe bloody" lmao
Ye the way he holds a knife isn’t great, I don’t think anyone should copy that. 😬
This man is a PRO. Only a PRO can smell the problem so quickly.... and hit the spot!
I was looking for someone who will explain how electronic things work , but like explain it with basic concepts and hands on learning , not theoretical stuff, your channel is perfect, thank you
One the best electronic tutorials on YT.
As soon as i heard his accent I went straight to the comments section 🤣🤣
Same 😂
🫵🤣🫸
😂😂😂😂
Impressively complex PSU design - a real education watching these videos :)
Thank you so much. Excellent analysis of circuits, i have seen the other videos too. I like your accent and style of explanation, as it is pleasant, easy to follow and understand. Thanks.
Language is not a knowlege just a medium to express the knowledge. So unskilled stupid make fun of a skilled man. Thanks man for so detailed knowledge with patience and experience. Rarely i find such good vidio
He is Czech who speaks English with Indian accent, nobody can that!
oh didn't know that...
but I always thought that the mains sockets seen in the beginning of the video are french?
It's not Indian accent, but Czech. It seems that you are not familiar with Indian accent. LOL!🙏😂😁😀
Can what? Haha lol
@@Aneesh.Asokan I am Czech and my colleagues are Indians. This is perfect.
@Aneesh Asokan < The only thing that can top this is an Indian speaking with a Czech accent. tsk-tsk
It's pretty sad that the top three comments are about his accent instead of the product in this video. Yes he's got an Indian sounding slovak accent (if there's such a thing), but it's all good, the guy's very knowledgeable and that's all that matters. "That's niiiiiiiiiiice!" if you know what I mean ;)
Czech does sound a bit between Italian and Indian, here are a couple of videos:
czcams.com/video/7dmPD0b_Ghw/video.html
czcams.com/video/5nKtEX6PmhA/video.html
Thank you , Sensei. I just learned something. Please continue teaching.
You are such a brilliant guy.
I don't know about electronics but in your explanation it's quite understandable.
Great video sir! Thank you for showing me how to open the damaged adapter without cutting my fingers!😂 My case of failure was different, the capacitors were fine, but two of the solders on the USB connector had cracked. I re-solder them and it works!
I love your way of speaking english.Good job.
This is one of the best channels in the whole internet. It is just sad to see it got 3.9k dislikes on this video seeing it in 2019.
I can't stop laughing. I feel happy listening this.
Great work Sir, and I wish I had a tutor like you in my early school and college days. You bet I would have become one of the best electronic engineers. Your intelligent analysis of the circuitry is highly commendable. I wonder if you could answer my other questions on electronic circuits such as Battery charger and UPS circuit. I would be grateful for a line in reply. Thanks and best wishes.
I agree with you 😢😢😢😢😮
Thank you, Sir. Your information is helpful. And to all the non educated out there: Communication doesn't have accent.
It's the quality of the message what really counts.
Good video & an explanation of real world problems that happen in electronics, thanks.
Amazing the way he sings all the phrases :))
I'm guessing that the 3rd 22 megaohm resistor is a bleed resistor for the primary side. Excellent work with the schematic.
i prayed for your fingers while you was opening it🤣
Very good thank you. I have seen dozens of electronic products fail over the years from leaking electrolytic capacitors. and repaired most of them by replacing the capacitors with newer and if possible higher values, both voltage and capacitance if room allowed it.
It's like he is telling an exciting story to a lil kid 😂
😂😂😂😂😂😭😭😭
Ooo I want to cry 🤣🤣
But I like his way to speak
👉czcams.com/video/V5F4-OpYg7k/video.html👈
I think the 6Z2 chip is actually a dual common anode zener diode.
As for the emitter of the switching transistor - it probably connects to the chip because the chip has an internal current sensing resistor or something like that, for overcurrent/overpower protection.
It's not the language but how he rectify problem and fix it.He did well thks for sharing.
👉czcams.com/video/V5F4-OpYg7k/video.html👈
Entertaining voice :-) Superbly brilliant guy - Could watch his videos all day. Well done and thank you :-)
I love your explanation with different accent.
Thanks, it was interesting to watch you troubleshoot.
👉czcams.com/video/V5F4-OpYg7k/video.html👈
Thanks for showing your process. I learn better from others mistakes.
Extensive knowledge in electronics is impressive.
Nice video, I like the place where you slowly get impatient, because the case is not so easy to open. 😋
YES! you can smell electrolyte! I was taught by several mentors and my schooling to use your five senses.. touch, taste, listen, look, and smell. unfortunately my sense of smell has grown weak and cant smell electrolyte, my hearing has been damaged in the service so cant hear high piched unusual noises. But for the young electronics enthusiest, they are your best tools to test and repair, develope them!
U have your own style.. keep it
That extension cord black because of all your experiments is very cool.
Brilliant man!! Honestly if you make fun of this guy,remember that you probably fall for every scam
awesome work! ... and i like your dialect ( i am not a natve speaker)
It's funny, I am an electrician and at work I consistently hear the el-engineers call the secondary the primary.
What many people don't know is that you can save your electronics, as long as you don't let the smoke out!
Nice channel sir
huh?
The control IC is definitely made by Diodes but the mark doesn't match any known device so it's either a custom chip for this supply or it's mismarked. That is fairly standard topology to have the sense resistor going into the controller and the transistor collector on another pin. The device on the output is definitely a minimum load to prevent the output from exceeding 5V.
i will follow this channel forever, i like the way he talk way simple...
Never replace an inrush fuseable-resistor with a regular resistor. Two totally different things!
of course
Thank you very much for precious information!
Interesting video man, thanks for the info. My charger for my Tab S7 died. I think I'm going to try and do warranty on it while it's in warranty. But good to know in future I need to clean the board thoroughly if I ever do a repair of my own.
Nearly 14x the subscriber count in two and a third years. Nice! Also glad that blade didn't throw a sharp corner at your face. Mine would have snapped.
I wonder if confirmation bias ever plays into his thinking. Meaning if we tried to get an ok quality Chinese charger, but pack it into a Samsung, Apple, Sony etc charger, would he analyse the charger and believing it to be from a good brand, start saying how it's good and well designed. That is quite interesting to wonder.
Really good channel I Love it....
BRILLIANT AND WELL ILLUSTRATED WORK, THUMBS UP
Spreading some car petrol around seams can help open awkward casings. Thanks Mr Wild. Genius
I really loveeeee this acentttt
I really hate iiiiiiiiit
Good job man. I have the 2A version of this charger and it looks more crowded but equally well built.
5V 2A and 9V 1.76A Fast charging I have this
all those subscribers you must be doing something right. You are providing a great service to the public and the world by reviewing all these questionable products that may cause hundreds of fires and electrical accidents a year. Yor work on you tube may be saving lives.
yes i totally agree this channel needs way more attention the videos are top notch if I'm being honest
Your explanations are great. thank you so much .
Great job on 10,000. Yours is one of my favorite CZcams channels. Can't wait till you hit 100,000.
Done.
Wow, thanks for the electronics lesson...
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Very useful. Thank you, sir. Greetings from Uruguay.
He's awesome and shares so much, thank you. Train your dog to diagnose an electrical fault.
👉czcams.com/video/V5F4-OpYg7k/video.html👈
Hey guys, i just wanted to share a recent charger fault I experienced. Once upon a time my Lenovo charger just died out of nowhere. When I opened it I found that some of the traces leading to the USB were gone. And I don't mean melted or melted and shorted - just straight up GONE. Had to carefully create new traces to repair it. Good luck!
when you listen to this english, you get crazy :D
AppleDone yep, so true it's very weird (btw I'm also half German)
Matthew Keeble I'm a German :D
Wiieerred check out Great Scott, he's German too 😊
Matthew Keeble woow, really? His English is very nice for Germans... Good to understand... :)
😂
Great video! I like you've drawn the electronic circuit. I always do that too and I don't understand how some technicians usually don't!
Its always good to listen to a Count Dracula explaining electronics...
Count what?Excuse me wtf?
Impressive! who cares about the accent? the narrative was clear. Thanks.
finaly someone who didn't comment about his accent
5:35 The extra resistor to the negative rail means that it will be a voltage divider, it will give a fixed voltage to the "chip" if this is resistor was not there, it would mean it is only the current to the chip would be reduced, NOT the voltage (although, in practice, the voltage would probably be reduced a lot). This is the difference between a Rheostat, which has 2 connections and controls current and a Potentiometer which has 3 connections and controls voltage. Hope this helps mate :-)
At 5:03 he points out the L1 inductor, but does show on the schematic or talk about the component B1 which is on the negative side of the two 6.8uF capacitors. Would you happen to know what type of a device B1 is? I’ve searched all over and I can’t find any information on the reference designation for B. Thanks!
"Let's a-try to pry this one open... It may be complicated. ...and may be bloody." 🤣🤣
😁😁😁😁😁
This is better english than inglish man.
I know you r German.
I proud of you dear.
The matter is the knowledge of SMPS .
How did you deduce that he's german? 😏
watching this video for uncountable times, and still interesting 😂
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Question is: did someone learn anything from his lovely english accent? If yes then the message went through. That's what matters.
At least he tried..
Love your videos . @2:00 "This is going to complicated , and maybe bloody" I wish when I started in Electronics 40 Years ago , that I had that on a T-Shirt .😄 (how many screwdriver and knife slips ...sigh )
Indeed your accent just forces to be attentive and never misses till the end .
the small winding on the primary, in addition to powering the driver, serves to indirectly control the output voltage.
But the output voltage is constant @ 5V?
That winding is actually called secondary winding, it's jus that it is located on primary side of the board. It is only used to power up PMW circuit. It does not necessarily provides any control.
@@sthandiwe7825
the small winding is used to power the PWM, but it is also necessary to control the percentage of the PWM itself. with a fixed PWM, the system could not regulate the output voltage. bye
@@matteom2011 It only provides power to PMW circuit, normally it provides fixed 12vdc to pulse with modulation circuit but that also depends on the design. PMW circuit is for oscillation and control. The only circuits that provide control is the feedback and PMW circuit not the power from those windings.
Hi, at 0318 when the capacitor facing screen, it shows sign of swollen top, it almost tells what is the problem.
Top fella, at least he's honest telling us all he likes smelling the plug...whatever floats your on yr kinky night...ha ha......he cracked me up how he innocently but in his accent said he likes to smell it😁🤣😎
Nice one my friend for the video and it's exactly what the Dr ordered.
This was obvious. Why you didn’t conclude earlier baffles me. Good job. 👍
I love how he speaks lol
Watching this because i want to bring some weed to my vacation and im planning ti hide it in an old broken charger
Wish me luck hahaa
Update: it worked hahaha
Big brain
What i like in this videos is the safety measures used...........................!
We have a few of these in our house. Their fantastic power supplies! Never skip a beat!
They're
When I saw the bulging electrolytic capacitor, it was already the primary suspect.
Right
Well done on the 10000 subs :-D.
Why dont they watch the videos, 10000 views per video would be awesome.
Are the three 22meg resistors just supplying 1/3rd of the voltage to start the chip? perhaps.
It seems that only 10% of the subs really watch the videos. Maybe they have subbed to too many channels because the youtubers are desperately begging for subs those days :D.
1/3 of the voltage would be 110Vdc. The chip has to clamp it down to a much lower voltage anyway, so the 22M resistor at the bottom has no use. Maybe they had a big stock of 22M resistors with no use...
Now if you could just add some hints to your 10k users to go to your very interesting web site: danyk.cz/index_en.html, adverts could bring a few more pennies in :-D.
Yes 22 meg is odd, i've seen 1meg and 2.2meg resistors used in the start up circuit of some switchmodes, perhaps they did over order lol.
zx8401ztv my goodness there is some really cool stuff on his web thank you for pointing it out.
It is full of interesting things, some of the high voltage circuits are a bit dangerous, but use common sense and its all usefull :-D
DiodeGoneWild it's true your the only guy I haven't seen begging for subs good job sir
Have a slightly different Samsung adaptive fast charge model for the 120V 60Hz market, quit on me after two years. Turned out it was a manufacturing defect, the PCB slides into two connectors to hook it up to mains power and one had failed by inadequate contact. Bent the connector so it grips more tightly and replaced the solder on the PCB connecting pad. Works now, got lucky with a super simple problem.
His way of speaking sounds like a song! Nice job by the way :) The 22+22 MegaOhms and the 22MegaOhms seems to be a voltage divider for providing the bias voltage to the base of the transistor. Probably the switching of the transistor is done by the pin from "Mysterious Circuitry 8-pin chip". This chip must have some internal switch to connect and disconnect the transistor's emitter to ground (could be used for over-current/over-voltage cut-off or something).
The input capacitors are made by CapXon. A capacitor company that makes their capacitors in china. CapXon is also notorious for their capacitors failing prematurely. Especially around the early 2000's, Capxon's newer capacitors are not that much better.
They should have gone with a better brand for the input capacitors, Some really good brand they could have gone with are nippon chemi-con, nichicon, rubycon, panasonic and suncon. (most of these brands make there capacitors in japan.)
REPLY
No, teapo, jamicon, lelon, OST are still crap.
Good capacitors are Matsushita/Panasonic, Rubycon, Nippon Chemicon, Nichicon and Sanyo.
I was thinking to myself when editing this comment today 'Should i remove the part about the Chinese capacitors being "decent" ' I guess i should now because now I've seen more of them fail since i made that comment.
Because the power supply is designed to fail ... & Power supply manufacturers usually first "save money" on the capacitors
Ben Chavez - when you were editing, you should have fixed the repeated errors in the use of there, their and they're. There was a dead capacitor in this charger. They're all cheap Chinese capacitors inside there, and the brands are notorious for their low quality.
Sorry, i was tired. I will try to fix the typos.
A decently designed charger ruined by cheap Chinese capacitors. Shame.
Exactly.
I would believe you, if you could prove that the charger was exceeding 85 degrees. Please show us how English should be "speeked".
*Not trying to start a fight....but the Australian versions of the Samsung chargers have Nicicon or Rubycon capacitors. So I dunno wether thats a fake or your country gets cheaped out on.*
Euro Bum Ooo nic
Murita muta murita sister
I find myself randomly talking to myself out loud or in my head using your accent even when I’m in public. It’s not that I’m making fun of you per se… it’s just fun to talk like that and yes it is kind of comical so I guess I’m kind of poking fun.
But I don’t mean to offend you, becauseI find your accent very endearing and calming to listen to. Especially when trying to sleep after a long day in the lab and my mind is racing with projects and business ideas.
But it’s pretty hilarious when I catch folks looking at me strangely when talking to myself out loud and over exaggerating your wild accent out in public and not realizing it. 😂
Everyone: Samsung
DiodeGoneWild: Samsoong
😂
When you see it's a capxon...you just know xD
👉czcams.com/video/V5F4-OpYg7k/video.html👈
Diooooood not gooooooood
aby set Wiiiiiiiiiiiiiiiiird
Tomasz Dwornik Who are you ?
Mike Like A USB chaaaaaaaarger specjaliiiiiist.
Tomasz Dwornik Buehehh.
Tomasz Dwornik Ъъ
Your circuit repair experience is very rich, you can smell various components of burning odor.
yes that is an awesome talent
Thank you for your great video as usual, i have the same charger and i would like to make a variable output voltage using a potentiometer what is the component based on your diagram that i need to change to make that happen?
I love your accent.... :D
Assalamu Alaikum unke chalati darkrai Baje Mahina apna WhatsApp number Ke Raja Raja apna mobile charger Chandigarh
Lol, I want a teacher with your accent in my class. That would put up a good show. LMAO.
Thank you very much for informative video. I liked it very much.
You actually need 2 pry tools to remove that back cover so you dont end up breaking it. Good video and yeah funny accent!