Just searched for this issue (repair laptop power supply), and found your video. It has inspired me to crack open the charger and troubleshoot it.

This is great information and in fact this is the exact reason why I always leave the AC cable plugged into the block. The laptop I am using right now is a 2009 HP Pavilion DV7 and it's still using the original power adaptor and the AC cable has only been out of it maybe 3 times since it was brand new. I also always tell people to plug the power adaptor into the mains BEFORE they connect it to the laptop just in case. I've seen a few laptops die from power spikes due to a bad charger when plugging into the mains.

I've seen many products with the same issue. One thing to consider is the carbon build up on the arcing pins. I normally will remove the connector from the pc board and check the board for carbon. It needs to be removed.

Learning so much from you Sorin. Wishing you every happiness.

A fault that I find just as commonly is that the mains lead is kinked and and one or more of the conductors is broken because the device is pushed up against a wall by the user.

I love your attitude and that you share your knowledge

I love his attitude, if a charger isn't working, you think we just throw it in the bin? have a heart.

Thankyou very much. I love the common fault videos, they do so much good for people.

As always a great video, manny thanks for sharing your knowledge ❤

How to open it? Very good trick is to apply petrol(gasoline) or diesel using syringe.

Yes, capacitor is nasty. Not only I got the shock, but I also burnt the IC that generates impulses and created a fireshow on plugging charger in, blew up the mosfet...

Thank you for you passion to repair and not throw away. Pax. Steven.

Great video. It's the first time l watch content like this in this channel, l think.

Right as usual! Also once you touch the charged 400V cap you will never do it again, trust me guys!

It was a short video but was very helpful 👌

Just to add something to an already extremely useful video: I usually use cyanoacrylate glue so I don´t have to use duct tape. It´s extremely fast acting and the bond is strong. Use ONLY the necessary so you don´t seal it so much that you can´t open it anymore. It also burns plastic so try to avoid drops of it on the visible parts of the charger. A q tip always helps if you want to make it look as good as new.

This is a great information,I so much love the lecture thanks allot ... from Nigeria ♥️♥️🇳🇬🇳🇬🇳🇬

Thanks Sorin. Waiting for the laptop repair video next.

I enjoy listening to you!

lol like new with black tape great work sorin