Premium DELL XPS 15 7590 - EDP51 EDB51 LA-H331P REV1.0 Schematic 2022-12-19

Beer!

 

Hello,
Thank you for making these things available! My GF laptop just failed on the 20V input rail. (Thunderbolt dock nor Charger gives power.)
I want to check which component could be culprit to see if I can get replacements.

Thank you so much,
Julien

 

Listen to the charger before you plug in without battery, you will here buzzing/frequency. Plug in charger and listen for frequency change at sequence start up, then listen while inserting battery for a frequency change, if you cannot hear frequency change it narrows down fault to input power circuit, maybe bad Cap or Mosfet, or worse id power management I.C. , Send me schematic or model type and i will see can i help you, Regards Mark

 

Thank you for the fast reply.
There is no audible frequency. I have tried to different power inputs the over the barrel jack and a thunderbolt dock both show the same behavior.
I saw with the thunderbolt dock that it blinked 2 times before it gave up.

I also suspect the input power circuit.
The model is a XPS 15 7590 from what the internet told me it's a the MB has the board number: EDP51 EDB51 LA-H331P REV 1.0
I haven't looked at it jet I first wanted to get some more information before I do any manual labor.

I think I will open it up now and take a look. I'll try to make some videos and or pictures.

cheers

 

That looks look a power input fix which is not too bad, but could be BIOS related, very common fault now, see can you back up BIOS and refresh with new on.

 

Please join me on https://www.youtube.com/@electronicsrepairschool
He is the best and can guarantee to help you with his videos!

 

There is a forum on discord also connected to the electronicsrepairschool, they are very helful guys also!

 

Hi,
That's a really good tip. I watched some videos of him in the past but didn't have that channel in mind anymore.