"It's now properly blown - niiiiiice". 😁

not all people can explain something this good the way DiodeGoneWild does. truly talented.

Hats off, very intelligent KZfaqr.

For anyone watching: if you find yourself tempted to use a pocketknife or similar to try and cut at hard plastic, be very careful. I have cut my fingers really bad on multiple occasions doing so. Make sure you are thinking about where the blade will go if it slips and that the path is away from your body and hands.

This is one of the best electronics youtube channel , thanks to you i understand how to make my tesla coil ❤

"Properly blown" 😁 Nice video!

It is always a good day when DGW uploads

That accent actually makes your videos quite enjoyable and easy to listen 😊

Love your videos, power electronics has always been some knowledge I'm lacking. You're videos are informative and great!

Amazing video! I love these so much. Thank you!

You deserve more youtube subscribers. Very informative and quality video. You try to the end although conditions are worse. Now I'm used to your accent. Thumb up, man!

Excellent explanation especially about the power factor correction circuit. Love all your videos on SMS and because of the detail explanation and patience you exercise leaving nothing to guess about.

I'm glad I stumbled upon yur channel a while ago, it's very interesting, you're extremely skilled, and I love how thorough you are.

I really like the way you explain everything in so much detail. It is really helpful. Thank you

I know nothing about microelectronics, but somehow I watch these videos with satisfaction.

Really good explanation of how this circuit is supposed to work, together with the PFC circuitry. Love it, thanks!

Even though it was beyond repair, this is still an excellent video

"Bloody helll" hahahahaha 😆 😂

This is pure gold in information. I subscribed to your channel also love your accent!

I have a 120W PS from the same company "LITEON" for Compaq and HP laptops. Same thing has happened to it, the control chip is blown up and same components are burnt. Good thing KZfaq recommend this video, thanks to you now I know it's not worth spending my time trying to repair it. Your videos are very useful, easy to understand. Thanks for sharing your knowledge with us.

25:18 "... which is propertly blown...nice" 😁👍

For me of all the sources that come to my bench, these are the most difficult to repair. Where I have very little success in its repair. Thanks for sharing your videos are excellent.

I have a similar power supply for my HP laptop. It gets too hot to touch whilst the laptop is in use and has done since I bought it new last year. My view is that at least part of the problem is the complete lack of any ventilation to help cooling. Your video is not to long. It fits exactly between the intro and the outro perfectly with no slack.

Keep up your fantastic work!!

Great - as always, by the way - you've just made another very informative video. Thanks! :)

I never miss any of your educational video 👌👌👌

I still find it amazing how much effort designers and engineers have to go through to rectify our mains for practically all the electronics we use in the 21st century. Makes me wonder if having some sort of central AC to DC box per household would be worth it. Although, I suppose we'd still need all sorts of buck/boost PSUs for various electronics.

"Your waveforms are crappy!" -The Cat In the Shoebox

23:52 look to the right of the split resistance ...

Phew, a tonne of work went into this video and the thing isn't even repairable. Good instructional lesson anyway DGW. I use mineral oil to soften up silicone sealant. It works when left on for a while(sometimes).

The way he says “power factor correction” is super satisfying.

Simply excellent! Thank you.👍

Nice clear explanation, very interesting.

Awesome troubleshooting, knowledge and dialect :D

Excellent video again, thanks! At first I missed your cat and was relieved when he(?) appeared at the end :)

Love your work brother ... very entertaining

Great guy, and super nice cat ! Thank you for your work.

Glad you seem to know what you are doing! I was a little afraid when you bridged the a-PFC with wires and solder and added the lamp as a fuse and plugged it in. The lamp is a good short circuit indicator and protects from heavy explosions :-) I wouldn't even start trying to repair this when i saw the black burnt area on the board. I have a lot of the old laptop power supplies and they tend to last very long in my experience. Btw: these cases open much easier when you cut around the edge with a sharp knife (carpet cutter) and then pry it open with chisel or similar. I put it into a wise to have it handy and safe.

Tank you very much for the quality video and one with professional job, good luck for the repairing.

Thanks vor that awesome Video.I learned a lot!

Thank you for the amazing explanation of the power factor correction circuit. 👍

thanks for your explananions, they help me understand better switched power supplies!

I've had the best luck opening these things with a wide dull wood chisel. The angle on the blade tends to force the halves apart when struck with a hammer. The plastic usually comes apart well enough to glue back together with little visible damage. Good Luck!

NICE VID SIR. I usually repair chargers like this and I found the explanation very usefull

Best Regards Mr. DiodGoneWild, U R truly talented.

I opened those powersupplies with a hairdryer😂

Creative info, thanks for sharing :)

Nice video! It helped me to understand reverse engineering a little bit more for trouble shooting problems

"En modo de espera" in spanish is "standby mode". Thanks for your videos !

Great practical explanation.

Blown a hole in it. The video is getting to bloody loooong So interesting, and entertaining, thank you😃

As an Slovak I'm finding your dialect super-hilarious :) thank you for your time and work on your vids :)

very informative, always good to learn something, and for the power supply, the magic smoke escaped from it, like dave would say. ;)

I put these welded cases in the freezer for a few hours. Then a few light taps with the edge of a small hammer at the joint, and the weld breaks easily while it's at about -20°C or below.

My 12 year old DVD Burner is a LITEON, they're usually very reliable, mine still works fine. Didn't know they made laptop power supplies, meh. Nice to see you still making great videos :) Stay safe and have a happy holidays :)

Love your videos, you are very clever, thank you

Thank you very much for the good explanation

I had to open an even bigger (around 180W ) laptop supply, and surprisingly, it had special headed screws! It was a HP brand. But the shielding and the amount of resin was almost the same!

my best kind of videos thank you 😍

Good,very good diagnostics.

May I suggest, to open that kind of adaptor, use some fuel, like car petrol fuel and drips it to the joint, all around the joint, wait a bit then open it with little effort I use that way to open numerous laptop adaptor and the case still intact and nice

hello, you can use isopropyl alcohol on benzin on the sides.. just squirt there and it will destroy the glue and will be very easy to open

There is tip to open pc chargers like this it's by using paint thiner(maybe isopropyl alcohol work too) it's much better and clean way to open such chargers hope it help

I had some success opening these by a vise. You can exert great force with fine control. Usually if you press just one half shell, then the welds break, just have to guess the correct half :-)

Very good video! Thanks

love this guy excellent tut. love the way he speak hehe

Nice explosion lol well done great vid.

Thx sir 😊 good work From Morocco 😊

Great work, great video. Good knowledge. Thank you very much....

5:19 conclusion: Once it goes black, it never goes back.

I love This fabulous films! Thanks !

Nice teaching.

Bloody hell what disaster happened here Best line 😂😂

my number 1 youtube channel thanks alot ....

23:52 was it arking right above the PFC current shunt resistor?

awesome tutorial, definitely better than most clickbait's and annoying fakes

Hello how are you? I bought an original used power supply from the same model as my old power supply to be in reserve, but in tests with the multimeter I noticed that it is marking: 18.90v, while the old and original notebook one marks: 19.43v. I wanted to know if this voltage difference between the sources could cause some damage in my notebook or if I can use it without problems? Thanks.

"Bloody Hellllll...." T-Shirt..lol

That's one wild diode

Thanks for the video =)

Thanks for sharing.teacher we learn a lot from you.

Pretty good and visual explanation how PFC works, good job :) Shame about power supply being unrepairable.

Most of the power supplies I've repaired lately have had the active PFC blown in the same way, the diode shorted and of course the transistor too. I wonder if it is a common practice to use undersized diodes or is there a hidden cause of this mode of failure? Thanks for the great video.

The BOOM is also my experience when trying to repair these power supplies! When short on space I tried to repair one on my mattress, it went BOOM and almost set fire to it. Always keep your fire extinguisher ready!

It's interesting to see the difference between modern power supplies and the cheap Chinese ones you normally analyze, this ones have mosfets and ics everywhere.

I have this exact brand power supply with my very old laptop from 2005 and it still works well and it was plugged in for at least 13 years non stop and probably it was the original adapter.

My Surface Go laptop charger stopped working. Voltage test showed practically nothing..just fluctuating in the millivolts. The board inside is liteon brand. The fuse is a fusible resistor with the colors: red, brown.. Or maybe brown then red.. But then it has two gold bands followed by a white and a yellow. There is no resistance when measuring. I'm actually confused by the 6 bands of color..due to the 3rd and 4th bands both being gold. Would that be a 1.2 ohm value? And shouldn't it have continuity?! Is there anything I can substitute in place of the fusible resistor?

Another entertaining video, thanks...top man for SMPS. I have found that after a burn up, the pcb material can act as a short.

great vid, I love seeing the magic smoke...Especially when it's not me blowing something up. BTW Your English is better than mine and that's the only language I know...LOL

great video

Good job!

In my opinion, the resistor connected to the earth is to limit the earth fault current, so that the fault won't causes the power supply enclosure to explode, but still enough to causes the circuit breaker to operate. Or it could be to suppress a earth looping current which can causes interference in analog instruments, especially audio equipment (hum/buzz noises). Still, excellent video!

So basically, the R050 had either got thermal shock (cracked from heat stresses, rare tho.) or had shattered from vibration shock (dropped). Stored energy in the PFC inductor had nowhere to go so flashed over trying to return energy back to the coil (conservation of energy... has to go somewhere, in this case as a high voltage spark). one of many classic PFC failure modes. Usually these are tied to the main switch IC where if the PFC chip doesn't send an enable to the main switcher, then the main switcher stays off. Also, the spike in voltage from that arc may of killed the main IC and main mosfet anyway. The other common PSU failures are when the main primary filter cap fails and too high a ripple is given to the main switch IC causing latch-up thus creating a short-path through the main transformer, through the mosfet, through the current sense resistor and anything else in it's path... usually lending to a shorted FET and in many cases a shorted fet-driver in the IC too.

I like your style :)

Hello, you might wanna try freezer spray to open that kind of ulstrasonic welded plastic cases. Just to give an idea. Thank you for your explanatory videos and in depth trials. Have a nice day!

You can put petrol on the edges then it should open easier

I love all his bloody hell video.

2:26 Finnish text spotted 👍 Greetings from Finland 👍

In this case, the diode really gone wild :)

What function does the metal covering perform? Can we remove it completely and use it without it?