Samsung USB Charger Failure and Repair
ฝัง
- เผยแพร่เมื่อ 14 ก.ย. 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 - วิทยาศาสตร์และเทคโนโลยี
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The moment when he said "SAMSOOUNG", my charger starts to repair itself
LMAO
😁😁
Hey you😮
He he he 😂
LLL
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.
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.
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
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.
That circuit diagram is the stuff of Engineers, this man knows this stuff. 😍
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Can't he be an engineer?
What do i know about electronic repairs? Nothing. But i watched the whole thing. I love your enthusiasm. Stay awesome!
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 man is a PRO. Only a PRO can smell the problem so quickly.... and hit the spot!
"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. 😬
Never heard this accent before. Best ive heard so far. Subscribed 😎
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@Anirudh Kowshik ummm no
It's Czech I think
@@SidharthCAnilyea it is,
on description ;)
One the best electronic tutorials on YT.
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.
As soon as i heard his accent I went straight to the comments section 🤣🤣
Same 😂
🫵🤣🫸
😂😂😂😂
You are such a brilliant guy.
I don't know about electronics but in your explanation it's quite understandable.
Impressively complex PSU design - a real education watching these videos :)
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
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.
Thank you , Sensei. I just learned something. Please continue teaching.
I love your way of speaking english.Good job.
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!
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.
Great job on 10,000. Yours is one of my favorite TH-cam channels. Can't wait till you hit 100,000.
Done.
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 😢😢😢😢😮
Entertaining voice :-) Superbly brilliant guy - Could watch his videos all day. Well done and thank you :-)
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.
Thanks for showing your process. I learn better from others mistakes.
I'm guessing that the 3rd 22 megaohm resistor is a bleed resistor for the primary side. Excellent work with the schematic.
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.
i will follow this channel forever, i like the way he talk way simple...
Amazing the way he sings all the phrases :))
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.
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
Extensive knowledge in electronics is impressive.
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
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Thanks, it was interesting to watch you troubleshoot.
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I love your explanation with different accent.
That extension cord black because of all your experiments is very cool.
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
It's not the language but how he rectify problem and fix it.He did well thks for sharing.
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Nice video, I like the place where you slowly get impatient, because the case is not so easy to open. 😋
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. 😂
Thank you very much for precious information!
U have your own style.. keep it
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!
BRILLIANT AND WELL ILLUSTRATED WORK, THUMBS UP
awesome work! ... and i like your dialect ( i am not a natve speaker)
i prayed for your fingers while you was opening it🤣
Its always good to listen to a Count Dracula explaining electronics...
Count what?Excuse me wtf?
Indeed your accent just forces to be attentive and never misses till the end .
I can't stop laughing. I feel happy listening this.
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:
th-cam.com/video/7dmPD0b_Ghw/w-d-xo.html
th-cam.com/video/5nKtEX6PmhA/w-d-xo.html
Your explanations are great. thank you so much .
This was obvious. Why you didn’t conclude earlier baffles me. Good job. 👍
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!
Really good channel I Love it....
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.
Spreading some car petrol around seams can help open awkward casings. Thanks Mr Wild. Genius
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?
I really loveeeee this acentttt
I really hate iiiiiiiiit
Very useful. Thank you, sir. Greetings from Uruguay.
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.
Wow, thanks for the electronics lesson...
👉th-cam.com/video/V5F4-OpYg7k/w-d-xo.html👈
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!
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.
Like your vids and accent. Btw I'm a noob when it comes to electronics just a old guy trying to learn new tricks hahaha greetings from the Netherlands
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
Impressive! who cares about the accent? the narrative was clear. Thanks.
finaly someone who didn't comment about his accent
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? 😏
Thanks a lot, this really helped me.👍👏
Wish you all the best
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.
We have a few of these in our house. Their fantastic power supplies! Never skip a beat!
They're
You are really great, simply explained well
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... :)
😂
watching this video for uncountable times, and still interesting 😂
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He's awesome and shares so much, thank you. Train your dog to diagnose an electrical fault.
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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 )
I love your accent.... :D
Assalamu Alaikum unke chalati darkrai Baje Mahina apna WhatsApp number Ke Raja Raja apna mobile charger Chandigarh
I love how he speaks lol
That was really detailed and useful!
Oh precisely I throw away mine yesterday !! 😥but I can't fix that anyway, need professional hand like yours ⚠. Thanks for sharing your knowledge great man.💌
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
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!
The nose is apparently underrated as DiodeGoneWild would say-in diagnosing high temperature faults in electronics.
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).
Never replace an inrush fuseable-resistor with a regular resistor. Two totally different things!
of course
Your accent is weird but pleasant to hear. Thanks for your video.
What i like in this videos is the safety measures used...........................!
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.
When I saw the bulging electrolytic capacitor, it was already the primary suspect.
Right
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..
Brilliant man!! Honestly if you make fun of this guy,remember that you probably fall for every scam
Thank you very much for informative video. I liked it very much.
Lol, I want a teacher with your accent in my class. That would put up a good show. LMAO.
When you see it's a capxon...you just know xD
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You actually need 2 pry tools to remove that back cover so you dont end up breaking it. Good video and yeah funny accent!
Thank you for sharing all these ideas