Common issue with Dell Laptops (Plugged in, not charging )

My pleasure, don't mention it!

I like to help other people as they help me when I need help.

Also I found the laptop power input socket is broken so I replaced it , I think that did short circuit that cause that transistor to be broken.

 Hello there

Those parts are generally unavailable in single units -- unless you're looking to buy thousands of them and are located in Southeast China.  If you're sure that part is faulty, your best bet is to find someone selling a board that failed for some other reason and salvage the part from the  dead board.

Try to read the part number of the burnt component then replace it with the same new component or equivalent compatible one. 

If you could not read the part number try to take a picture of it then magnify the picture. 

or post a picture of the component here we will see if we can help you. 

My dell latitude 5480 do not charging with original charger. I think problem is in PD4 component, but i am cannot identity this element. Can you ask what element can replase this element.(on photo two dell latitude 5480 laptops first normal, second do not charging)

normal laptopbroken pd4

Hello friend, excuse me, where do I buy the replacement transistor, I have looked everywhere and I can not find it.

If you have electronic background you can find a replacement, the replacement is another transistor has different number but has the same specifications or better.

If you have old broken laptop, most probably you can find the same transistor or a replacement inside it, specify the similar transistor like the broken one, then search for a data sheet based on the number written on it, compare the specifications in the data sheet with the specifications of the original component.

The suitable replacement must has the same specifications or better.

If you don't have electronic background the important specifications are the transistor type should be the same, the voltage and current rating should be the same like the original or more than them.

Good luck!

Excuse me for my late answer, I didn't usually check Dell website.

I hope you solved your issue during last two months.

if not search for a data sheet of this burnt transistor, if you have old broken laptop find a similar transistor search for a data sheet, compare them.

I have just written a detailed procedure for choosing suitable component for another person in this post.

Good luck!

Hi Sanchotuit, I have the same problem but I dont have an other laptop to compare. Did you manage to measure electrically PD4 to know the internal diode configuration? in that way, I can easily find something equivalent. I didn't find anything using the serial number on the good one of your picture. 

I think probably this part is different depending on the laptop model, I wish I could have a schematic diagram from Dell, I would help you, but unfortunately I don't have.

Anyway, this component is not a diode, measuring it will not help.

I recommend you, if your same component is burnt, to search about the specs of it, this component most probably is a transistor or a power regulator, then you can judge which component is suitable.

Good luck

Ismail

I have read almost all of above questions and suggestions.

I have a burnt transistor JB k/3 is written on it and some PD4303 is labelled along it on the motherboard. Issue: same plugged in but not charging.

I have searched that transistor but couldn't find a thing, please help me to find its compatible transistor so that i can replace. As, its kinda new and im afraid its another faulty motherboard is hard to find in the market.

Jumper solutions is the easiest way I was facing the same problem but I did it myself